babel perl issue

babel perl issue

[flav]

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Hello,
I am trying to use babel and I don't manage :

#+begin_src
perl

   print
"toto\n";

#+end_src

When I do C-c C-o : No org-babel-execute function for perl!

In my .emacs :
(setq org-src-lang-modes (quote (("ocaml" . tuareg) ("elisp" . emacs-lisp)
("ditaa" . artist) ("asymptote" . asy) ("dot" . fundamental) ("sqlite" .
sql) ("calc" . fundamental) ("C" . c) ("cpp" . c++) ("screen" .
shell-script) ("perl" . perl))))

M-x org-version :

Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)

I am sorry, I am sure, I have not done it well, but if you can't help me !
-- 
flav

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Re: babel perl issue

[Achim Gratz]

flav writes:
> In my .emacs : 
> (setq org-src-lang-modes (quote (("ocaml" . tuareg) ("elisp" .
> emacs-lisp) ("ditaa" . artist) ("asymptote" . asy) ("dot" .
> fundamental) ("sqlite" . sql) ("calc" . fundamental) ("C" . c) ("cpp" .
> c++) ("screen" . shell-script) ("perl" . perl))))

Scratch that.  You don't need to change anything for this variable (and
if you did it'd be better if you used customize).  What you want to do
is customize the "Org Babel Load Languages" in the Org Babel customize
group and add perl as a language so that ob-perl is loaded.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for Waldorf Q V3.00R3 and Q+ V3.54R2:
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Re: babel perl issue

[Eric Schulte]

Achim Gratz <Stromeko@nexgo.de> writes:

> flav writes:
>> In my .emacs : 
>> (setq org-src-lang-modes (quote (("ocaml" . tuareg) ("elisp" .
>> emacs-lisp) ("ditaa" . artist) ("asymptote" . asy) ("dot" .
>> fundamental) ("sqlite" . sql) ("calc" . fundamental) ("C" . c) ("cpp" .
>> c++) ("screen" . shell-script) ("perl" . perl))))
>
> Scratch that.  You don't need to change anything for this variable (and
> if you did it'd be better if you used customize).  What you want to do
> is customize the "Org Babel Load Languages" in the Org Babel customize
> group and add perl as a language so that ob-perl is loaded.
>

See http://orgmode.org/manual/Languages.html for the documentation on
how to activate and disable org-babel languages.

Best,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

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Eric Schulte writes:
> See http://orgmode.org/manual/Languages.html for the documentation on
> how to activate and disable org-babel languages.

That actually produces the error:

File mode specification error: (void-variable org-babel-tangle-lang-exts)

as the OP has found out (and I can reproduce it).

The reason is that none of the ob-<lang>.el files do a (require
ob-tangle), but try to change a defcustom in ob.tangle.el that is only
declared, but not yet available at the time.  I've quickfixed it by
moving the require for ob-tangle in org.el to the beginning of the file,
but this is now relying on the fact that org is implicitly loaded for
getting the major mode set up, so all the babel language files still
need to be cleaned up.


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From 12d87c5d944b75f8acbd6cacb3351cede1d44525 Mon Sep 17 00:00:00 2001
From: Achim Gratz <Stromeko@Stromeko.DE>
Date: Sun, 9 Dec 2012 21:26:16 +0100
Subject: [PATCH] Keep requires at the beginning of the file

* lisp/org.el: Keep require forms at the beginning of the file.

Thanks to "flav" for providing an example that showed ob-tangle was
required too late.

Also, all ob-<lang> files should IMHO require ob-tangle instead of
declaring dynamic variables and relying on org.el to do the require.
---
 lisp/org.el | 62 ++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/lisp/org.el b/lisp/org.el
index c5be3c5..42d4c0d 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -78,6 +78,37 @@ (defvar org-table-formula-constants-local nil
 (require 'find-func)
 (require 'format-spec)
 
+(require 'outline)
+(if (and (not (keymapp outline-mode-map)) (featurep 'allout))
+    (error "Conflict with outdated version of allout.el.  Load org.el before allout.el, or upgrade to newer allout, for example by switching to Emacs 22"))
+(require 'noutline "noutline" 'noerror) ;; stock XEmacs does not have it
+
+;; Other stuff we need.
+(require 'time-date)
+(unless (fboundp 'time-subtract) (defalias 'time-subtract 'subtract-time))
+(require 'easymenu)
+(require 'overlay)
+
+(require 'org-macs)
+(require 'org-entities)
+;; (require 'org-compat) moved higher up in the file before it is first used
+(require 'org-faces)
+(require 'org-list)
+(require 'org-pcomplete)
+(require 'org-src)
+(require 'org-footnote)
+
+;; babel
+(require 'ob)
+(require 'ob-table)
+(require 'ob-lob)
+(require 'ob-ref)
+(require 'ob-tangle)
+(require 'ob-comint)
+(require 'ob-keys)
+
+(require 'font-lock)
+
 (let ((load-suffixes (list ".el")))
   (load "org-loaddefs" 'noerror nil nil 'mustsuffix))
 
@@ -4939,35 +4970,6 @@ (defvar org-table-buffer-is-an nil)
 (defvar bidi-paragraph-direction)
 (defvar buffer-face-mode-face)
 
-(require 'outline)
-(if (and (not (keymapp outline-mode-map)) (featurep 'allout))
-    (error "Conflict with outdated version of allout.el.  Load org.el before allout.el, or upgrade to newer allout, for example by switching to Emacs 22"))
-(require 'noutline "noutline" 'noerror) ;; stock XEmacs does not have it
-
-;; Other stuff we need.
-(require 'time-date)
-(unless (fboundp 'time-subtract) (defalias 'time-subtract 'subtract-time))
-(require 'easymenu)
-(require 'overlay)
-
-(require 'org-macs)
-(require 'org-entities)
-;; (require 'org-compat) moved higher up in the file before it is first used
-(require 'org-faces)
-(require 'org-list)
-(require 'org-pcomplete)
-(require 'org-src)
-(require 'org-footnote)
-
-;; babel
-(require 'ob)
-(require 'ob-table)
-(require 'ob-lob)
-(require 'ob-ref)
-(require 'ob-tangle)
-(require 'ob-comint)
-(require 'ob-keys)
-
 ;;;###autoload
 (define-derived-mode org-mode outline-mode "Org"
   "Outline-based notes management and organizer, alias
@@ -5174,8 +5176,6 @@ (defvar org-mouse-map (make-sparse-keymap))
   (org-defkey org-mouse-map [(tab)] 'org-open-at-point)
   (org-defkey org-mouse-map "\C-i" 'org-open-at-point))
 
-(require 'font-lock)
-
 (defconst org-non-link-chars "]\t\n\r<>")
 (defvar org-link-types '("http" "https" "ftp" "mailto" "file" "news"
 			 "shell" "elisp" "doi" "message"))
-- 
1.8.0.1


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Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

DIY Stuff:
http://Synth.Stromeko.net/DIY.html

Re: babel perl issue

[flav]

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I put (require 'ob-tangle) in my .emacs
I am sorry but now

Symbol's function definition is void: org-not-nil


2012/12/9 ASSI <Stromeko@nexgo.de>

> require 'ob-tangle




-- 
flav

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Re: babel perl issue

[flav]

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I put (require 'ob-tangle) in my .emacs
I am sorry but now

Symbol's function definition is void: org-not-nil
when I do C-c C-o in a perl block



2012/12/10 flav <flav.justflav@gmail.com>

> I put (require 'ob-tangle) in my .emacs
> I am sorry but now
>
> Symbol's function definition is void: org-not-nil
>
>
> 2012/12/9 ASSI <Stromeko@nexgo.de>
>
>> require 'ob-tangle
>
>
>
>
> --
> flav
>



-- 
flav

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Re: babel perl issue

[Eric Schulte]

Achim Gratz <Stromeko@nexgo.de> writes:

> Eric Schulte writes:
>> See http://orgmode.org/manual/Languages.html for the documentation on
>> how to activate and disable org-babel languages.
>
> That actually produces the error:
>
> File mode specification error: (void-variable org-babel-tangle-lang-exts)
>
> as the OP has found out (and I can reproduce it).
>

Using this method of requiring languages,

    ;; emacs-lisp
    (org-babel-do-load-languages
      'org-babel-load-languages
      '((perl . t)))

Works for me without issue when called from a fresh emacs (-Q).  This is
the recommended way of adding support for a new language and should work
for the OP.

>
> The reason is that none of the ob-<lang>.el files do a (require
> ob-tangle), but try to change a defcustom in ob.tangle.el that is only
> declared, but not yet available at the time.

The two fixes seem to be either to either (1) add (require 'ob-tangle)
to all current and new language specific files, or (2) merge ob-tangle
into ob.el, so that they are both loaded by (require 'ob).  It is
unfortunate that because of the recursive require there is no way to
separate a single require'd entity across multiple files.

Option (2) seems most clean to me.  Unless anyone has a better idea I'll
make this change.

Best,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Eric Schulte]

flav <flav.justflav@gmail.com> writes:

> I put (require 'ob-tangle) in my .emacs
> I am sorry but now
>
> Symbol's function definition is void: org-not-nil
> when I do C-c C-o in a perl block
>

put the following in your .emacs, possibly following a (require 'org)

(org-babel-do-load-languages 'org-babel-load-languages
  '((perl . t)))

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[flav]

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still an issue :


Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
  (org-babel-do-load-languages (quote org-babel-load-languages) (quote
(...)))
  eval-buffer(#<buffer  *load*> nil "/home/flav/.emacs" nil t)  ; Reading
at bu$
  load-with-code-conversion("/home/flav/.emacs" "/home/flav/.emacs" t t)
  load("~/.emacs" t t)
  #[nil "^H\205\264^@   \306=\203^Q^@\307^H\310Q\2027^@
\311=\2033^@\312\307\31$
  command-line()
  normal-top-level()


2012/12/10 Eric Schulte <schulte.eric@gmail.com>

> (org-babel-do-load-languages
>       'org-babel-load-languages
>       '((perl . t)))
>



-- 
flav

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Re: babel perl issue

[Eric Schulte]

As I mentioned in my previous message you have to require Org-mode
before executing the following snippet.  Try

    (require 'org)
    (org-babel-do-load-languages
          'org-babel-load-languages
          '((perl . t)))

flav <flav.justflav@gmail.com> writes:

> still an issue :
>
>
> Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
>   (org-babel-do-load-languages (quote org-babel-load-languages) (quote
> (...)))
>   eval-buffer(#<buffer  *load*> nil "/home/flav/.emacs" nil t)  ; Reading
> at bu$
>   load-with-code-conversion("/home/flav/.emacs" "/home/flav/.emacs" t t)
>   load("~/.emacs" t t)
>   #[nil "^H\205\264^@   \306=\203^Q^@\307^H\310Q\2027^@
> \311=\2033^@\312\307\31$
>   command-line()
>   normal-top-level()
>
>
> 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
>
>> (org-babel-do-load-languages
>>       'org-babel-load-languages
>>       '((perl . t)))
>>

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[flav]

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I am sorry for my misunderstood but
I put (require 'org) in my .emacs and there is no change.



2012/12/10 Eric Schulte <schulte.eric@gmail.com>

> As I mentioned in my previous message you have to require Org-mode
> before executing the following snippet.  Try
>
>     (require 'org)
>     (org-babel-do-load-languages
>           'org-babel-load-languages
>           '((perl . t)))
>
> flav <flav.justflav@gmail.com> writes:
>
> > still an issue :
> >
> >
> > Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
> >   (org-babel-do-load-languages (quote org-babel-load-languages) (quote
> > (...)))
> >   eval-buffer(#<buffer  *load*> nil "/home/flav/.emacs" nil t)  ; Reading
> > at bu$
> >   load-with-code-conversion("/home/flav/.emacs" "/home/flav/.emacs" t t)
> >   load("~/.emacs" t t)
> >   #[nil "^H\205\264^@   \306=\203^Q^@\307^H\310Q\2027^@
> > \311=\2033^@\312\307\31$
> >   command-line()
> >   normal-top-level()
> >
> >
> > 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
> >
> >> (org-babel-do-load-languages
> >>       'org-babel-load-languages
> >>       '((perl . t)))
> >>
>
> --
> Eric Schulte
> http://cs.unm.edu/~eschulte
>



-- 
flav

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Re: babel perl issue

[Eric Schulte]

1. make sure you're using a recent version of Org-mode, either the
   latest release or from git, see
   http://orgmode.org/worg/org-faq.html#Keeping-current

2. start Emacs with the -Q flag (to ensure there is no problem caused by
   the rest of your config)

3. evaluate the Babel config

     (require 'org)
     (org-babel-do-load-languages
           'org-babel-load-languages
           '((perl . t)))

4. if you still have problems, then write back with your version of
   Emacs, and your version of org-mode (reported with M-x org-version)

Hope this helps,

flav <flav.justflav@gmail.com> writes:

> I am sorry for my misunderstood but
> I put (require 'org) in my .emacs and there is no change.
>
>
>
> 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
>
>> As I mentioned in my previous message you have to require Org-mode
>> before executing the following snippet.  Try
>>
>>     (require 'org)
>>     (org-babel-do-load-languages
>>           'org-babel-load-languages
>>           '((perl . t)))
>>
>> flav <flav.justflav@gmail.com> writes:
>>
>> > still an issue :
>> >
>> >
>> > Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
>> >   (org-babel-do-load-languages (quote org-babel-load-languages) (quote
>> > (...)))
>> >   eval-buffer(#<buffer  *load*> nil "/home/flav/.emacs" nil t)  ; Reading
>> > at bu$
>> >   load-with-code-conversion("/home/flav/.emacs" "/home/flav/.emacs" t t)
>> >   load("~/.emacs" t t)
>> >   #[nil "^H\205\264^@   \306=\203^Q^@\307^H\310Q\2027^@
>> > \311=\2033^@\312\307\31$
>> >   command-line()
>> >   normal-top-level()
>> >
>> >
>> > 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
>> >
>> >> (org-babel-do-load-languages
>> >>       'org-babel-load-languages
>> >>       '((perl . t)))
>> >>
>>
>> --
>> Eric Schulte
>> http://cs.unm.edu/~eschulte
>>

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

Eric Schulte writes:
> Using this method of requiring languages,
>
>     ;; emacs-lisp
>     (org-babel-do-load-languages
>       'org-babel-load-languages
>       '((perl . t)))
>
> Works for me without issue when called from a fresh emacs (-Q).  This is
> the recommended way of adding support for a new language and should work
> for the OP.

Why should this be preferred over simple customization of
org-babel-load-languages?  I see no reason to have users add code to
.emacs just for selecting which Babel languages to use.

> The two fixes seem to be either to either (1) add (require 'ob-tangle)
> to all current and new language specific files, or (2) merge ob-tangle
> into ob.el, so that they are both loaded by (require 'ob).  It is
> unfortunate that because of the recursive require there is no way to
> separate a single require'd entity across multiple files.
>
> Option (2) seems most clean to me.  Unless anyone has a better idea I'll
> make this change.

Well, option (3) is to implement option (2) first, then put all
defcustoms (together with their initializers perhaps) into separate
files instead of dispersing them into many smaller ones and require them
from the top-level files (ob.el in your case, although I personally
think that all defcustoms should be visible from the start) so that any
autoloaded function invocation will see them defined with their correct
values.  The external interface is then taken care of by autoloading and
the number of requires is minimal.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Wavetables for the Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#BlofeldUserWavetables

Re: babel perl issue

[Achim Gratz]

flav writes:
> I am sorry for my misunderstood but
> I put (require 'org) in my .emacs and there is no change.

May I suggest you use the ELPA package?


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Wavetables for the Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#BlofeldUserWavetables

Re: babel perl issue

[Eric Schulte]

Achim Gratz <Stromeko@nexgo.de> writes:

> Eric Schulte writes:
>> Using this method of requiring languages,
>>
>>     ;; emacs-lisp
>>     (org-babel-do-load-languages
>>       'org-babel-load-languages
>>       '((perl . t)))
>>
>> Works for me without issue when called from a fresh emacs (-Q).  This is
>> the recommended way of adding support for a new language and should work
>> for the OP.
>
> Why should this be preferred over simple customization of
> org-babel-load-languages?

The `org-babel-do-load-languages' function handles the loading of the
language-specific files as well as the removal of the evaluation
functions defined by those files when languages are deactivated.  This
removal requires un-binding those functions.

> I see no reason to have users add code to .emacs just for selecting
> which Babel languages to use.
>

Note that if `org-babel-load-languages' is set through the customization
interface then `org-babel-do-load-languages' will be called as above
(see the :set keyword argument to the defcustom of
`org-babel-load-languages') so it is not necessary for a user to add
anything to their .emacs.

>
>> The two fixes seem to be either to either (1) add (require 'ob-tangle)
>> to all current and new language specific files, or (2) merge ob-tangle
>> into ob.el, so that they are both loaded by (require 'ob).  It is
>> unfortunate that because of the recursive require there is no way to
>> separate a single require'd entity across multiple files.
>>
>> Option (2) seems most clean to me.  Unless anyone has a better idea I'll
>> make this change.
>
> Well, option (3) is to implement option (2) first, then put all
> defcustoms (together with their initializers perhaps) into separate
> files instead of dispersing them into many smaller ones and require them
> from the top-level files (ob.el in your case, although I personally
> think that all defcustoms should be visible from the start) so that any
> autoloaded function invocation will see them defined with their correct
> values.  The external interface is then taken care of by autoloading and
> the number of requires is minimal.
>

So, you're suggesting moving all ob-* defcustoms into ob.el or possibly
into org.el?  That seems reasonable to me, although I'm hesitant to add
that much code to org.el w/o a go-ahead from Bastien or a more core
maintainer than myself.

Specifically to the require structure of Babel.  Perhaps the best
solution would be to replace ob.el with a small file which requires all
of the core components of Babel (e.g., ob-exp, ob-ref, ob-tangle,
etc...) and move the existing ob.el to something like ob-core.el.  That
way the entire Babel suite may be loaded by all language specific files
using a single require statement.  Does that seem reasonable?

Thanks,

>
>
> Regards,
> Achim.

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

Eric Schulte writes:
> So, you're suggesting moving all ob-* defcustoms into ob.el or possibly
> into org.el?  That seems reasonable to me, although I'm hesitant to add
> that much code to org.el w/o a go-ahead from Bastien or a more core
> maintainer than myself.

That would be a possibility, but adding them to a new file ob-customs.el
and requiring that from ob.el might be less intrusive.

> Specifically to the require structure of Babel.  Perhaps the best
> solution would be to replace ob.el with a small file which requires all
> of the core components of Babel (e.g., ob-exp, ob-ref, ob-tangle,
> etc...) and move the existing ob.el to something like ob-core.el.  That
> way the entire Babel suite may be loaded by all language specific files
> using a single require statement.  Does that seem reasonable?

If you can manage to keep the require structure non-circular, that seems
like a good idea.  You could also turn your suggestion on the head and
provide ob-core.el with just the requires (and maybe the defcustoms) you
mentioned above and have all other ob-* files require it.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Wavetables for the Terratec KOMPLEXER:
http://Synth.Stromeko.net/Downloads.html#KomplexerWaves

Re: babel perl issue

[flav]

Le 10/12/2012 18:24, Eric Schulte a écrit :
> 1. make sure you're using a recent version of Org-mode, either the
>     latest release or from git, see
>     http://orgmode.org/worg/org-faq.html#Keeping-current
>
> 2. start Emacs with the -Q flag (to ensure there is no problem caused by
>     the rest of your config)
>
> 3. evaluate the Babel config
>
>       (require 'org)
>       (org-babel-do-load-languages
>             'org-babel-load-languages
>             '((perl . t)))
>
> 4. if you still have problems, then write back with your version of
>     Emacs, and your version of org-mode (reported with M-x org-version)
>
> Hope this helps,
>
> flav <flav.justflav@gmail.com> writes:
>
>> I am sorry for my misunderstood but
>> I put (require 'org) in my .emacs and there is no change.
>>
>>
>>
>> 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
>>
>>> As I mentioned in my previous message you have to require Org-mode
>>> before executing the following snippet.  Try
>>>
>>>      (require 'org)
>>>      (org-babel-do-load-languages
>>>            'org-babel-load-languages
>>>            '((perl . t)))
>>>
>>> flav <flav.justflav@gmail.com> writes:
>>>
>>>> still an issue :
>>>>
>>>>
>>>> Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
>>>>    (org-babel-do-load-languages (quote org-babel-load-languages) (quote
>>>> (...)))
>>>>    eval-buffer(#<buffer  *load*> nil "/home/flav/.emacs" nil t)  ; Reading
>>>> at bu$
>>>>    load-with-code-conversion("/home/flav/.emacs" "/home/flav/.emacs" t t)
>>>>    load("~/.emacs" t t)
>>>>    #[nil "^H\205\264^@   \306=\203^Q^@\307^H\310Q\2027^@
>>>> \311=\2033^@\312\307\31$
>>>>    command-line()
>>>>    normal-top-level()
>>>>
>>>>
>>>> 2012/12/10 Eric Schulte <schulte.eric@gmail.com>
>>>>
>>>>> (org-babel-do-load-languages
>>>>>        'org-babel-load-languages
>>>>>        '((perl . t)))
>>>>>
>>> --
>>> Eric Schulte
>>> http://cs.unm.edu/~eschulte
>>>
Hello,
Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
   (org-babel-do-load-languages (quote org-babel-load-languages) (quote 
(...)))
   eval((org-babel-do-load-languages (quote org-babel-load-languages) 
(quote (..$
   eval-last-sexp-1(t)
   eval-last-sexp(t)
   eval-print-last-sexp()
   call-interactively(eval-print-last-sexp nil nil)

Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)
GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6)
  of 2012-09-21 on allspice, modified by Debian

Thanks for help.

-- 
flav

Re: babel perl issue

[Eric Schulte]

flav <flav.justflav@gmail.com> writes:

> Le 10/12/2012 18:24, Eric Schulte a écrit :
>> 1. make sure you're using a recent version of Org-mode, either the
>>     latest release or from git, see
>>     http://orgmode.org/worg/org-faq.html#Keeping-current
>>
>> 2. start Emacs with the -Q flag (to ensure there is no problem caused by
>>     the rest of your config)
>>
>> 3. evaluate the Babel config
>>
>>       (require 'org)
>>       (org-babel-do-load-languages
>>             'org-babel-load-languages
>>             '((perl . t)))
>>
>> 4. if you still have problems, then write back with your version of
>>     Emacs, and your version of org-mode (reported with M-x org-version)
>>
>> Hope this helps,
[...]
> Hello,
> Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
>   (org-babel-do-load-languages (quote org-babel-load-languages) (quote
> (...)))
>   eval((org-babel-do-load-languages (quote org-babel-load-languages)
> (quote (..$
>   eval-last-sexp-1(t)
>   eval-last-sexp(t)
>   eval-print-last-sexp()
>   call-interactively(eval-print-last-sexp nil nil)
>
> Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)
> GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6)
>  of 2012-09-21 on allspice, modified by Debian
>
> Thanks for help.

I don't see how this is possible.  I am also using Org-mode 7.9.2,
here's my Org-mode version

  Org-mode version 7.9.2 (release_7.9.2-603-gf8a69a @ /home/eschulte/.emacs.d/src/org-mode/lisp/)

The `org-babel-do-load-languages' function is defined in org.el, so once
you have run (require 'org), I don't believe it is possible for this
function to remain undefined.  Could you

1. open the org.el file manually on your system,
2. while visiting the file, search for the string
   "org-babel-do-load-languages" to confirm that the function is defined
   in that file
3. run `eval-buffer' while still visiting that file,
4. and then finally run

       (org-babel-do-load-languages
             'org-babel-load-languages
             '((perl . t)))

If the above does not work, please let me know at which stage it fails.
If it does work, then I suspect the problem is related to something
peculiar to your system, and is beyond my abilities to help you with.

Best,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Eric Schulte]

[-- Attachment #1: Type: text/plain, Size: 1595 bytes --]

>> Specifically to the require structure of Babel.  Perhaps the best
>> solution would be to replace ob.el with a small file which requires all
>> of the core components of Babel (e.g., ob-exp, ob-ref, ob-tangle,
>> etc...) and move the existing ob.el to something like ob-core.el.  That
>> way the entire Babel suite may be loaded by all language specific files
>> using a single require statement.  Does that seem reasonable?
>
> If you can manage to keep the require structure non-circular, that seems
> like a good idea.  You could also turn your suggestion on the head and
> provide ob-core.el with just the requires (and maybe the defcustoms) you
> mentioned above and have all other ob-* files require it.
>

I'm attaching two patches which implement this new require structure.
They move ob.el -> ob-core.el.  The new ob.el (which is now loaded by
every file which requires 'ob) does two things.

1. It defines every Babel defcustom (excluding the language-specific
   defcustoms).  Should defvars be moved here as well?

2. It loads the remainder of Babel, namely; ob-eval, ob-core, ob-comint,
   ob-exp, ob-keys, ob-table, ob-lob, ob-ref and ob-tangle.

This allows for most of the language files to be simplified as they now
only need to require ob, rather than requiring the subset of the above
particular to their needs.

The only Babel-related compiler warnings thrown while compiling with
this new setup are in reference to an undefined variable which I see now
you've mentioned in another thread.

If these patches look reasonable I'll apply them to the master branch.

Thanks,


[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-ob.el-is-an-umbrella-loading-all-of-Babel.patch --]
[-- Type: text/x-patch, Size: 220651 bytes --]

From 02aa6dc91838015d36730af6daece1c094f53016 Mon Sep 17 00:00:00 2001
From: Eric Schulte <eric.schulte@gmx.com>
Date: Tue, 11 Dec 2012 07:00:35 -0700
Subject: [PATCH 1/2] ob.el is an umbrella loading all of Babel

Renamed the previous ob.el to ob-core.el.
---
 lisp/ob-C.el          |    1 -
 lisp/ob-R.el          |    3 -
 lisp/ob-awk.el        |    1 -
 lisp/ob-calc.el       |    1 -
 lisp/ob-comint.el     |    2 +-
 lisp/ob-core.el       | 2630 +++++++++++++++++++++++++++++++++++++++++++++++++
 lisp/ob-dot.el        |    1 -
 lisp/ob-emacs-lisp.el |    1 -
 lisp/ob-exp.el        |    2 +-
 lisp/ob-fortran.el    |    1 -
 lisp/ob-gnuplot.el    |    2 -
 lisp/ob-haskell.el    |    1 -
 lisp/ob-io.el         |    3 -
 lisp/ob-java.el       |    1 -
 lisp/ob-js.el         |    3 -
 lisp/ob-keys.el       |    2 +-
 lisp/ob-lilypond.el   |    3 -
 lisp/ob-lob.el        |    2 +-
 lisp/ob-mscgen.el     |    1 -
 lisp/ob-ocaml.el      |    1 -
 lisp/ob-octave.el     |    3 -
 lisp/ob-perl.el       |    1 -
 lisp/ob-picolisp.el   |    2 -
 lisp/ob-plantuml.el   |    1 -
 lisp/ob-python.el     |    3 -
 lisp/ob-ref.el        |    2 +-
 lisp/ob-ruby.el       |    3 -
 lisp/ob-sass.el       |    1 -
 lisp/ob-scala.el      |    3 -
 lisp/ob-scheme.el     |    3 -
 lisp/ob-screen.el     |    1 -
 lisp/ob-sh.el         |    3 -
 lisp/ob-sqlite.el     |    2 -
 lisp/ob-table.el      |    2 +-
 lisp/ob-tangle.el     |    1 -
 lisp/ob.el            | 2606 +-----------------------------------------------
 lisp/org.el           |    6 -
 37 files changed, 2644 insertions(+), 2661 deletions(-)
 create mode 100644 lisp/ob-core.el

diff --git a/lisp/ob-C.el b/lisp/ob-C.el
index 55e4b40..195dd9e 100644
--- a/lisp/ob-C.el
+++ b/lisp/ob-C.el
@@ -31,7 +31,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 (require 'cc-mode)
 
 (declare-function org-entry-get "org"
diff --git a/lisp/ob-R.el b/lisp/ob-R.el
index 5711f38..eb97bd2 100644
--- a/lisp/ob-R.el
+++ b/lisp/ob-R.el
@@ -28,9 +28,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function orgtbl-to-tsv "org-table" (table params))
diff --git a/lisp/ob-awk.el b/lisp/ob-awk.el
index 6ce67f4..444728a 100644
--- a/lisp/ob-awk.el
+++ b/lisp/ob-awk.el
@@ -32,7 +32,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 (require 'org-compat)
 (eval-when-compile (require 'cl))
 
diff --git a/lisp/ob-calc.el b/lisp/ob-calc.el
index c79d0b5..4eaf51a 100644
--- a/lisp/ob-calc.el
+++ b/lisp/ob-calc.el
@@ -31,7 +31,6 @@
 (unless (featurep 'xemacs)
   (require 'calc-trail)
   (require 'calc-store))
-(eval-when-compile (require 'ob-comint))
 
 (declare-function calc-store-into    "calc-store" (&optional var))
 (declare-function calc-recall        "calc-store" (&optional var))
diff --git a/lisp/ob-comint.el b/lisp/ob-comint.el
index ba3b99d..c3afd35 100644
--- a/lisp/ob-comint.el
+++ b/lisp/ob-comint.el
@@ -30,7 +30,7 @@
 ;; org-babel at large.
 
 ;;; Code:
-(require 'ob)
+(require 'ob-core)
 (require 'org-compat)
 (require 'comint)
 (eval-when-compile (require 'cl))
diff --git a/lisp/ob-core.el b/lisp/ob-core.el
new file mode 100644
index 0000000..7b4ee92
--- /dev/null
+++ b/lisp/ob-core.el
@@ -0,0 +1,2630 @@
+;;; ob-core.el --- working with code blocks in org-mode
+
+;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
+
+;; Authors: Eric Schulte
+;;	Dan Davison
+;; Keywords: literate programming, reproducible research
+;; Homepage: http://orgmode.org
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Code:
+(eval-when-compile
+  (require 'cl))
+(require 'org-macs)
+(require 'org-compat)
+
+(defconst org-babel-exeext
+  (if (memq system-type '(windows-nt cygwin))
+      ".exe"
+    nil))
+(defvar org-babel-call-process-region-original)
+(defvar org-src-lang-modes)
+(defvar org-babel-library-of-babel)
+(declare-function show-all "outline" ())
+(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
+(declare-function org-mark-ring-push "org" (&optional pos buffer))
+(declare-function tramp-compat-make-temp-file "tramp-compat"
+                  (filename &optional dir-flag))
+(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
+(declare-function tramp-file-name-user "tramp" (vec))
+(declare-function tramp-file-name-host "tramp" (vec))
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function org-icompleting-read "org" (&rest args))
+(declare-function org-edit-src-code "org-src"
+                  (&optional context code edit-buffer-name quietp))
+(declare-function org-edit-src-exit "org-src"  (&optional context))
+(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
+(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
+(declare-function org-outline-overlay-data "org" (&optional use-markers))
+(declare-function org-set-outline-overlay-data "org" (data))
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-entry-get "org"
+		  (pom property &optional inherit literal-nil))
+(declare-function org-make-options-regexp "org" (kwds &optional extra))
+(declare-function org-do-remove-indentation "org" (&optional n))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-cycle "org" (&optional arg))
+(declare-function org-uniquify "org" (list))
+(declare-function org-current-level "org" ())
+(declare-function org-table-import "org-table" (file arg))
+(declare-function org-add-hook "org-compat"
+		  (hook function &optional append local))
+(declare-function org-table-align "org-table" ())
+(declare-function org-table-end "org-table" (&optional table-type))
+(declare-function orgtbl-to-generic "org-table" (table params))
+(declare-function orgtbl-to-orgtbl "org-table" (table params))
+(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
+(declare-function org-babel-lob-get-info "ob-lob" nil)
+(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
+(declare-function org-babel-ref-parse "ob-ref" (assignment))
+(declare-function org-babel-ref-resolve "ob-ref" (ref))
+(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
+(declare-function org-babel-ref-headline-body "ob-ref" ())
+(declare-function org-babel-lob-execute-maybe "ob-lob" ())
+(declare-function org-number-sequence "org-compat" (from &optional to inc))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-list-parse-list "org-list" (&optional delete))
+(declare-function org-list-to-generic "org-list" (LIST PARAMS))
+(declare-function org-list-struct "org-list" ())
+(declare-function org-list-prevs-alist "org-list" (struct))
+(declare-function org-list-get-list-end "org-list" (item struct prevs))
+(declare-function org-remove-if "org" (predicate seq))
+(declare-function org-completing-read "org" (&rest args))
+(declare-function org-escape-code-in-region "org-src" (beg end))
+(declare-function org-unescape-code-in-string "org-src" (s))
+(declare-function org-table-to-lisp "org-table" (&optional txt))
+
+(defgroup org-babel nil
+  "Code block evaluation and management in `org-mode' documents."
+  :tag "Babel"
+  :group 'org)
+
+(defcustom org-confirm-babel-evaluate t
+  "Confirm before evaluation.
+Require confirmation before interactively evaluating code
+blocks in Org-mode buffers.  The default value of this variable
+is t, meaning confirmation is required for any code block
+evaluation.  This variable can be set to nil to inhibit any
+future confirmation requests.  This variable can also be set to a
+function which takes two arguments the language of the code block
+and the body of the code block.  Such a function should then
+return a non-nil value if the user should be prompted for
+execution or nil if no prompt is required.
+
+Warning: Disabling confirmation may result in accidental
+evaluation of potentially harmful code.  It may be advisable
+remove code block execution from C-c C-c as further protection
+against accidental code block evaluation.  The
+`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
+remove code block execution from the C-c C-c keybinding."
+  :group 'org-babel
+  :version "24.1"
+  :type '(choice boolean function))
+;; don't allow this variable to be changed through file settings
+(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
+
+(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
+  "Remove code block evaluation from the C-c C-c key binding."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+
+(defcustom org-babel-results-keyword "RESULTS"
+  "Keyword used to name results generated by code blocks.
+Should be either RESULTS or NAME however any capitalization may
+be used."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-start "<<"
+  "String used to begin a noweb reference in a code block.
+See also `org-babel-noweb-wrap-end'."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-end ">>"
+  "String used to end a noweb reference in a code block.
+See also `org-babel-noweb-wrap-start'."
+  :group 'org-babel
+  :type 'string)
+
+(defun org-babel-noweb-wrap (&optional regexp)
+  (concat org-babel-noweb-wrap-start
+	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
+	  org-babel-noweb-wrap-end))
+
+(defvar org-babel-src-name-regexp
+  "^[ \t]*#\\+name:[ \t]*"
+  "Regular expression used to match a source name line.")
+
+(defvar org-babel-multi-line-header-regexp
+  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
+  "Regular expression used to match multi-line header arguments.")
+
+(defvar org-babel-src-name-w-name-regexp
+  (concat org-babel-src-name-regexp
+	  "\\("
+	  org-babel-multi-line-header-regexp
+	  "\\)*"
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
+  "Regular expression matching source name lines with a name.")
+
+(defvar org-babel-src-block-regexp
+  (concat
+   ;; (1) indentation                 (2) lang
+   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
+   ;; (3) switches
+   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
+   ;; (4) header arguments
+   "\\([^\n]*\\)\n"
+   ;; (5) body
+   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
+  "Regexp used to identify code blocks.")
+
+(defvar org-babel-inline-src-block-regexp
+  (concat
+   ;; (1) replacement target (2) lang
+   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
+   ;; (3,4) (unused, headers)
+   "\\(\\|\\[\\(.*?\\)\\]\\)"
+   ;; (5) body
+   "{\\([^\f\n\r\v]+?\\)}\\)")
+  "Regexp used to identify inline src-blocks.")
+
+(defun org-babel-get-header (params key &optional others)
+  "Select only header argument of type KEY from a list.
+Optional argument OTHERS indicates that only the header that do
+not match KEY should be returned."
+  (delq nil
+	(mapcar
+	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
+	 params)))
+
+(defun org-babel-get-inline-src-block-matches()
+  "Set match data if within body of an inline source block.
+Returns non-nil if match-data set"
+  (let ((src-at-0-p (save-excursion
+		      (beginning-of-line 1)
+		      (string= "src" (thing-at-point 'word))))
+	(first-line-p (= 1 (line-number-at-pos)))
+	(orig (point)))
+    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
+			    (first-line-p "[[:punct:] \t]src_")
+			    (t "[[:punct:] \f\t\n\r\v]src_")))
+	  (lower-limit (if first-line-p
+			   nil
+			 (- (point-at-bol) 1))))
+      (save-excursion
+	(when (or (and src-at-0-p (bobp))
+		  (and (re-search-forward "}" (point-at-eol) t)
+		       (re-search-backward search-for lower-limit t)
+		       (> orig (point))))
+	  (when (looking-at org-babel-inline-src-block-regexp)
+	    t ))))))
+
+(defvar org-babel-inline-lob-one-liner-regexp)
+(defun org-babel-get-lob-one-liner-matches()
+  "Set match data if on line of an lob one liner.
+Returns non-nil if match-data set"
+  (save-excursion
+    (unless (= (point) (point-at-bol)) ;; move before inline block
+      (re-search-backward "[ \f\t\n\r\v]" nil t))
+    (if (looking-at org-babel-inline-lob-one-liner-regexp)
+	t
+      nil)))
+
+(defun org-babel-get-src-block-info (&optional light)
+  "Get information on the current source block.
+
+Optional argument LIGHT does not resolve remote variable
+references; a process which could likely result in the execution
+of other code blocks.
+
+Returns a list
+ (language body header-arguments-alist switches name indent)."
+  (let ((case-fold-search t) head info name indent)
+    ;; full code block
+    (if (setq head (org-babel-where-is-src-block-head))
+	(save-excursion
+	  (goto-char head)
+	  (setq info (org-babel-parse-src-block-match))
+	  (setq indent (car (last info)))
+	  (setq info (butlast info))
+	  (while (and (forward-line -1)
+		      (looking-at org-babel-multi-line-header-regexp))
+	    (setf (nth 2 info)
+		  (org-babel-merge-params
+		   (nth 2 info)
+		   (org-babel-parse-header-arguments (match-string 1)))))
+	  (when (looking-at org-babel-src-name-w-name-regexp)
+	    (setq name (org-no-properties (match-string 3)))
+	    (when (and (match-string 5) (> (length (match-string 5)) 0))
+	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
+		    (org-babel-merge-params
+		     (mapcar
+		      (lambda (ref) (cons :var ref))
+		      (mapcar
+		       (lambda (var) ;; check that each variable is initialized
+			 (if (string-match ".+=.+" var)
+			     var
+			   (error
+			    "variable \"%s\"%s must be assigned a default value"
+			    var (if name (format " in block \"%s\"" name) ""))))
+		       (org-babel-ref-split-args (match-string 5))))
+		     (nth 2 info))))))
+      ;; inline source block
+      (when (org-babel-get-inline-src-block-matches)
+	(setq info (org-babel-parse-inline-src-block-match))))
+    ;; resolve variable references and add summary parameters
+    (when (and info (not light))
+      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
+    (when info (append info (list name indent)))))
+
+(defvar org-current-export-file) ; dynamically bound
+(defun org-babel-confirm-evaluate (info)
+  "Confirm evaluation of the code block INFO.
+This behavior can be suppressed by setting the value of
+`org-confirm-babel-evaluate' to nil, in which case all future
+interactive code block evaluations will proceed without any
+confirmation from the user.
+
+Note disabling confirmation may result in accidental evaluation
+of potentially harmful code."
+  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
+		   (when (assoc :noeval (nth 2 info)) "no")))
+         (query (cond ((equal eval "query") t)
+		      ((and (boundp 'org-current-export-file)
+			    org-current-export-file
+			    (equal eval "query-export")) t)
+                      ((functionp org-confirm-babel-evaluate)
+                       (funcall org-confirm-babel-evaluate
+                                (nth 0 info) (nth 1 info)))
+                      (t org-confirm-babel-evaluate))))
+    (if (or (equal eval "never") (equal eval "no")
+	    (and (boundp 'org-current-export-file)
+		 org-current-export-file
+		 (or (equal eval "no-export")
+		     (equal eval "never-export")))
+	    (and query
+		 (not (yes-or-no-p
+		       (format "Evaluate this%scode block%son your system? "
+			       (if info (format " %s " (nth 0 info)) " ")
+			       (if (nth 4 info)
+				   (format " (%s) " (nth 4 info)) " "))))))
+	(prog1 nil (message "Evaluation %s"
+			    (if (or (equal eval "never") (equal eval "no")
+				    (equal eval "no-export")
+				    (equal eval "never-export"))
+				"Disabled" "Aborted")))
+      t)))
+
+;;;###autoload
+(defun org-babel-execute-safely-maybe ()
+  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
+    (org-babel-execute-maybe)))
+
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
+
+;;;###autoload
+(defun org-babel-execute-maybe ()
+  (interactive)
+  (or (org-babel-execute-src-block-maybe)
+      (org-babel-lob-execute-maybe)))
+
+(defun org-babel-execute-src-block-maybe ()
+  "Conditionally execute a source block.
+Detect if this is context for a Babel src-block and if so
+then run `org-babel-execute-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-eval-wipe-error-buffer)
+	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
+
+;;;###autoload
+(defun org-babel-view-src-block-info ()
+  "Display information on the current source block.
+This includes header arguments, language and name, and is largely
+a window into the `org-babel-get-src-block-info' function."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info 'light))
+	(full (lambda (it) (> (length it) 0)))
+	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
+    (when info
+      (with-help-window (help-buffer)
+	(let ((name        (nth 4 info))
+	      (lang        (nth 0 info))
+	      (switches    (nth 3 info))
+	      (header-args (nth 2 info)))
+	  (when name            (funcall printf "Name: %s\n"     name))
+	  (when lang            (funcall printf "Lang: %s\n"     lang))
+	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
+	  (funcall printf "Header Arguments:\n")
+	  (dolist (pair (sort header-args
+			      (lambda (a b) (string< (symbol-name (car a))
+						     (symbol-name (car b))))))
+	    (when (funcall full (cdr pair))
+	      (funcall printf "\t%S%s\t%s\n"
+		       (car pair)
+		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
+		       (cdr pair)))))))))
+
+;;;###autoload
+(defun org-babel-expand-src-block-maybe ()
+  "Conditionally expand a source block.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-expand-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-expand-src-block current-prefix-arg info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-load-in-session-maybe ()
+  "Conditionally load a source block in a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-load-in-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-load-in-session current-prefix-arg info) t)
+      nil)))
+
+(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
+
+;;;###autoload
+(defun org-babel-pop-to-session-maybe ()
+  "Conditionally pop to a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-pop-to-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
+
+(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
+
+(defconst org-babel-common-header-args-w-values
+  '((cache	. ((no yes)))
+    (cmdline	. :any)
+    (colnames	. ((nil no yes)))
+    (comments	. ((no link yes org both noweb)))
+    (dir	. :any)
+    (eval	. ((never query)))
+    (exports	. ((code results both none)))
+    (file	. :any)
+    (file-desc  . :any)
+    (hlines	. ((no yes)))
+    (mkdirp	. ((yes no)))
+    (no-expand)
+    (noeval)
+    (noweb	. ((yes no tangle no-export strip-export)))
+    (noweb-ref	. :any)
+    (noweb-sep  . :any)
+    (padline	. ((yes no)))
+    (results	. ((file list vector table scalar verbatim)
+		   (raw html latex org code pp drawer)
+		   (replace silent none append prepend)
+		   (output value)))
+    (rownames	. ((no yes)))
+    (sep	. :any)
+    (session	. :any)
+    (shebang	. :any)
+    (tangle	. ((tangle yes no :any)))
+    (var	. :any)
+    (wrap       . :any)))
+
+(defconst org-babel-header-arg-names
+  (mapcar #'car org-babel-common-header-args-w-values)
+  "Common header arguments used by org-babel.
+Note that individual languages may define their own language
+specific header arguments as well.")
+
+(defvar org-babel-default-header-args
+  '((:session . "none") (:results . "replace") (:exports . "code")
+    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
+    (:padnewline . "yes"))
+  "Default arguments to use when evaluating a source block.")
+
+(defvar org-babel-default-inline-header-args
+  '((:session . "none") (:results . "replace") (:exports . "results"))
+  "Default arguments to use when evaluating an inline source block.")
+
+(defvar org-babel-data-names '("tblname" "results" "name"))
+
+(defvar org-babel-result-regexp
+  (concat "^[ \t]*#\\+"
+	  (regexp-opt org-babel-data-names t)
+	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
+  "Regular expression used to match result lines.
+If the results are associated with a hash key then the hash will
+be saved in the second match data.")
+
+(defvar org-babel-result-w-name-regexp
+  (concat org-babel-result-regexp
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
+
+(defvar org-babel-min-lines-for-block-output 10
+  "The minimum number of lines for block output.
+If number of lines of output is equal to or exceeds this
+value, the output is placed in a #+begin_example...#+end_example
+block.  Otherwise the output is marked as literal by inserting
+colons at the starts of the lines.  This variable only takes
+effect if the :results output option is in effect.")
+
+(defvar org-babel-noweb-error-langs nil
+  "Languages for which Babel will raise literate programming errors.
+List of languages for which errors should be raised when the
+source code block satisfying a noweb reference in this language
+can not be resolved.")
+
+(defvar org-babel-hash-show 4
+  "Number of initial characters to show of a hidden results hash.")
+
+(defvar org-babel-after-execute-hook nil
+  "Hook for functions to be called after `org-babel-execute-src-block'")
+
+(defun org-babel-named-src-block-regexp-for-name (name)
+  "This generates a regexp used to match a src block named NAME."
+  (concat org-babel-src-name-regexp (regexp-quote name)
+	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
+	  (substring org-babel-src-block-regexp 1)))
+
+(defun org-babel-named-data-regexp-for-name (name)
+  "This generates a regexp used to match data named NAME."
+  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
+
+;;; functions
+(defvar call-process-region)
+
+;;;###autoload
+(defun org-babel-execute-src-block (&optional arg info params)
+  "Execute the current source code block.
+Insert the results of execution into the buffer.  Source code
+execution and the collection and formatting of results can be
+controlled through a variety of header arguments.
+
+With prefix argument ARG, force re-execution even if an existing
+result cached in the buffer would otherwise have been returned.
+
+Optionally supply a value for INFO in the form returned by
+`org-babel-get-src-block-info'.
+
+Optionally supply a value for PARAMS which will be merged with
+the header arguments specified at the front of the source code
+block."
+  (interactive)
+  (let ((info (or info (org-babel-get-src-block-info))))
+    (when (org-babel-confirm-evaluate
+	   (let ((i info))
+	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
+	     i))
+      (let* ((lang (nth 0 info))
+	     (params (if params
+			 (org-babel-process-params
+			  (org-babel-merge-params (nth 2 info) params))
+		       (nth 2 info)))
+	     (cache? (and (not arg) (cdr (assoc :cache params))
+			  (string= "yes" (cdr (assoc :cache params)))))
+	     (result-params (cdr (assoc :result-params params)))
+	     (new-hash (when cache? (org-babel-sha1-hash info)))
+	     (old-hash (when cache? (org-babel-current-result-hash)))
+	     (body (setf (nth 1 info)
+			 (if (org-babel-noweb-p params :eval)
+			     (org-babel-expand-noweb-references info)
+			   (nth 1 info))))
+	     (dir (cdr (assoc :dir params)))
+	     (default-directory
+	       (or (and dir (file-name-as-directory (expand-file-name dir)))
+		   default-directory))
+	     (org-babel-call-process-region-original
+	      (if (boundp 'org-babel-call-process-region-original)
+		  org-babel-call-process-region-original
+		(symbol-function 'call-process-region)))
+	     (indent (car (last info)))
+	     result cmd)
+	(unwind-protect
+	    (let ((call-process-region
+		   (lambda (&rest args)
+		     (apply 'org-babel-tramp-handle-call-process-region args))))
+	      (let ((lang-check (lambda (f)
+				  (let ((f (intern (concat "org-babel-execute:" f))))
+				    (when (fboundp f) f)))))
+		(setq cmd
+		      (or (funcall lang-check lang)
+			  (funcall lang-check (symbol-name
+					       (cdr (assoc lang org-src-lang-modes))))
+			  (error "No org-babel-execute function for %s!" lang))))
+	      (if (and (not arg) new-hash (equal new-hash old-hash))
+		  (save-excursion ;; return cached result
+		    (goto-char (org-babel-where-is-src-block-result nil info))
+		    (end-of-line 1) (forward-char 1)
+		    (setq result (org-babel-read-result))
+		    (message (replace-regexp-in-string
+			      "%" "%%" (format "%S" result))) result)
+		(message "executing %s code block%s..."
+			 (capitalize lang)
+			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
+		(if (member "none" result-params)
+		    (progn
+		      (funcall cmd body params)
+		      (message "result silenced"))
+		(setq result
+		      ((lambda (result)
+			 (if (and (eq (cdr (assoc :result-type params)) 'value)
+				  (or (member "vector" result-params)
+				      (member "table" result-params))
+				  (not (listp result)))
+			     (list (list result)) result))
+		       (funcall cmd body params)))
+		;; if non-empty result and :file then write to :file
+		(when (cdr (assoc :file params))
+		  (when result
+		    (with-temp-file (cdr (assoc :file params))
+		      (insert
+		       (org-babel-format-result
+			result (cdr (assoc :sep (nth 2 info)))))))
+		  (setq result (cdr (assoc :file params))))
+		(org-babel-insert-result
+		 result result-params info new-hash indent lang)
+		(run-hooks 'org-babel-after-execute-hook)
+		result
+		)))
+	  (setq call-process-region 'org-babel-call-process-region-original))))))
+
+(defun org-babel-expand-body:generic (body params &optional var-lines)
+  "Expand BODY with PARAMS.
+Expand a block of code with org-babel according to its header
+arguments.  This generic implementation of body expansion is
+called for languages which have not defined their own specific
+org-babel-expand-body:lang function."
+  (mapconcat #'identity (append var-lines (list body)) "\n"))
+
+;;;###autoload
+(defun org-babel-expand-src-block (&optional arg info params)
+  "Expand the current source code block.
+Expand according to the source code block's header
+arguments and pop open the results in a preview buffer."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+	 (params (setf (nth 2 info)
+                       (sort (org-babel-merge-params (nth 2 info) params)
+                             (lambda (el1 el2) (string< (symbol-name (car el1))
+							(symbol-name (car el2)))))))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+			 (org-babel-expand-noweb-references info) (nth 1 info))))
+         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
+	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
+					  lang)))
+         (expanded
+	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
+	    (org-babel-expand-body:generic
+	     body params (and (fboundp assignments-cmd)
+			      (funcall assignments-cmd params))))))
+    (org-edit-src-code
+     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
+
+(defun org-babel-edit-distance (s1 s2)
+  "Return the edit (levenshtein) distance between strings S1 S2."
+  (let* ((l1 (length s1))
+	 (l2 (length s2))
+	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
+				(number-sequence 1 (1+ l1)))))
+	 (in (lambda (i j) (aref (aref dist i) j))))
+    (setf (aref (aref dist 0) 0) 0)
+    (dolist (j (number-sequence 1 l2))
+      (setf (aref (aref dist 0) j) j))
+    (dolist (i (number-sequence 1 l1))
+      (setf (aref (aref dist i) 0) i)
+      (dolist (j (number-sequence 1 l2))
+	(setf (aref (aref dist i) j)
+	      (min
+	       (1+ (funcall in (1- i) j))
+	       (1+ (funcall in i (1- j)))
+	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
+		  (funcall in (1- i) (1- j)))))))
+    (funcall in l1 l2)))
+
+(defun org-babel-combine-header-arg-lists (original &rest others)
+  "Combine a number of lists of header argument names and arguments."
+  (let ((results (copy-sequence original)))
+    (dolist (new-list others)
+      (dolist (arg-pair new-list)
+	(let ((header (car arg-pair))
+	      (args (cdr arg-pair)))
+	  (setq results
+		(cons arg-pair (org-remove-if
+				(lambda (pair) (equal header (car pair)))
+				results))))))
+    results))
+
+;;;###autoload
+(defun org-babel-check-src-block ()
+  "Check for misspelled header arguments in the current code block."
+  (interactive)
+  ;; TODO: report malformed code block
+  ;; TODO: report incompatible combinations of header arguments
+  ;; TODO: report uninitialized variables
+  (let ((too-close 2) ;; <- control closeness to report potential match
+	(names (mapcar #'symbol-name org-babel-header-arg-names)))
+    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
+			    (and (org-babel-where-is-src-block-head)
+				 (org-babel-parse-header-arguments
+				  (org-no-properties
+				   (match-string 4))))))
+      (dolist (name names)
+	(when (and (not (string= header name))
+		   (<= (org-babel-edit-distance header name) too-close)
+		   (not (member header names)))
+	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
+		 header name))))
+    (message "No suspicious header arguments found.")))
+
+;;;###autoload
+(defun org-babel-insert-header-arg ()
+  "Insert a header argument selecting from lists of common args and values."
+  (interactive)
+  (let* ((lang (car (org-babel-get-src-block-info 'light)))
+	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
+	 (headers (org-babel-combine-header-arg-lists
+		   org-babel-common-header-args-w-values
+		   (if (boundp lang-headers) (eval lang-headers) nil)))
+	 (arg (org-icompleting-read
+	       "Header Arg: "
+	       (mapcar
+		(lambda (header-spec) (symbol-name (car header-spec)))
+		headers))))
+    (insert ":" arg)
+    (let ((vals (cdr (assoc (intern arg) headers))))
+      (when vals
+	(insert
+	 " "
+	 (cond
+	  ((eq vals :any)
+	   (read-from-minibuffer "value: "))
+	  ((listp vals)
+	   (mapconcat
+	    (lambda (group)
+	      (let ((arg (org-icompleting-read
+			  "value: "
+			  (cons "default" (mapcar #'symbol-name group)))))
+		(if (and arg (not (string= "default" arg)))
+		    (concat arg " ")
+		  "")))
+	    vals ""))))))))
+
+;; Add support for completing-read insertion of header arguments after ":"
+(defun org-babel-header-arg-expand ()
+  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
+  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
+    (org-babel-enter-header-arg-w-completion (match-string 2))))
+
+(defun org-babel-enter-header-arg-w-completion (&optional lang)
+  "Insert header argument appropriate for LANG with completion."
+  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
+         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
+	 (headers-w-values (org-babel-combine-header-arg-lists
+			    org-babel-common-header-args-w-values lang-headers))
+         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
+         (header (org-completing-read "Header Arg: " headers))
+         (args (cdr (assoc (intern header) headers-w-values)))
+         (arg (when (and args (listp args))
+                (org-completing-read
+                 (format "%s: " header)
+                 (mapcar #'symbol-name (apply #'append args))))))
+    (insert (concat header " " (or arg "")))
+    (cons header arg)))
+
+(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
+
+;;;###autoload
+(defun org-babel-load-in-session (&optional arg info)
+  "Load the body of the current source-code block.
+Evaluate the header arguments for the source block before
+entering the session.  After loading the body this pops open the
+session."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (params (nth 2 info))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+                         (org-babel-expand-noweb-references info)
+		       (nth 1 info))))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (cmd (intern (concat "org-babel-load-session:" lang))))
+    (unless (fboundp cmd)
+      (error "No org-babel-load-session function for %s!" lang))
+    (pop-to-buffer (funcall cmd session body params))
+    (end-of-line 1)))
+
+;;;###autoload
+(defun org-babel-initiate-session (&optional arg info)
+  "Initiate session for current code block.
+If called with a prefix argument then resolve any variable
+references in the header arguments and assign these variables in
+the session.  Copy the body of the code block to the kill ring."
+  (interactive "P")
+  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+         (params (nth 2 info))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
+	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
+    (if (and (stringp session) (string= session "none"))
+	(error "This block is not using a session!"))
+    (unless (fboundp init-cmd)
+      (error "No org-babel-initiate-session function for %s!" lang))
+    (with-temp-buffer (insert (org-babel-trim body))
+                      (copy-region-as-kill (point-min) (point-max)))
+    (when arg
+      (unless (fboundp prep-cmd)
+	(error "No org-babel-prep-session function for %s!" lang))
+      (funcall prep-cmd session params))
+    (funcall init-cmd session params)))
+
+;;;###autoload
+(defun org-babel-switch-to-session (&optional arg info)
+  "Switch to the session of the current code block.
+Uses `org-babel-initiate-session' to start the session.  If called
+with a prefix argument then this is passed on to
+`org-babel-initiate-session'."
+  (interactive "P")
+  (pop-to-buffer (org-babel-initiate-session arg info))
+  (end-of-line 1))
+
+(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
+
+;;;###autoload
+(defun org-babel-switch-to-session-with-code (&optional arg info)
+  "Switch to code buffer and display session."
+  (interactive "P")
+  (let ((swap-windows
+	 (lambda ()
+	   (let ((other-window-buffer (window-buffer (next-window))))
+	     (set-window-buffer (next-window) (current-buffer))
+	     (set-window-buffer (selected-window) other-window-buffer))
+	   (other-window 1)))
+	(info (org-babel-get-src-block-info))
+	(org-src-window-setup 'reorganize-frame))
+    (save-excursion
+      (org-babel-switch-to-session arg info))
+    (org-edit-src-code)
+    (funcall swap-windows)))
+
+(defmacro org-babel-do-in-edit-buffer (&rest body)
+  "Evaluate BODY in edit buffer if there is a code block at point.
+Return t if a code block was found at point, nil otherwise."
+  `(let ((org-src-window-setup 'switch-invisibly))
+     (when (and (org-babel-where-is-src-block-head)
+		(org-edit-src-code nil nil nil))
+       (unwind-protect (progn ,@body)
+	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
+	     (org-edit-src-exit)))
+       t)))
+(def-edebug-spec org-babel-do-in-edit-buffer (body))
+
+(defun org-babel-do-key-sequence-in-edit-buffer (key)
+  "Read key sequence and execute the command in edit buffer.
+Enter a key sequence to be executed in the language major-mode
+edit buffer.  For example, TAB will alter the contents of the
+Org-mode code block according to the effect of TAB in the
+language major-mode buffer.  For languages that support
+interactive sessions, this can be used to send code from the Org
+buffer to the session for evaluation using the native major-mode
+evaluation mechanisms."
+  (interactive "kEnter key-sequence to execute in edit buffer: ")
+  (org-babel-do-in-edit-buffer
+   (call-interactively
+    (key-binding (or key (read-key-sequence nil))))))
+
+(defvar org-bracket-link-regexp)
+
+;;;###autoload
+(defun org-babel-open-src-block-result (&optional re-run)
+  "If `point' is on a src block then open the results of the
+source code block, otherwise return nil.  With optional prefix
+argument RE-RUN the source-code block is evaluated even if
+results already exist."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info)))
+    (when info
+      (save-excursion
+	;; go to the results, if there aren't any then run the block
+	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
+		       (progn (org-babel-execute-src-block)
+			      (org-babel-where-is-src-block-result))))
+	(end-of-line 1)
+	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
+	;; open the results
+	(if (looking-at org-bracket-link-regexp)
+	    ;; file results
+	    (org-open-at-point)
+	  (let ((r (org-babel-format-result
+		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
+	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
+	    (delete-region (point-min) (point-max))
+	    (insert r)))
+	t))))
+
+;;;###autoload
+(defmacro org-babel-map-src-blocks (file &rest body)
+  "Evaluate BODY forms on each source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer.  During evaluation of BODY the following local variables
+are set relative to the currently matched code block.
+
+full-block ------- string holding the entirety of the code block
+beg-block -------- point at the beginning of the code block
+end-block -------- point at the end of the matched code block
+lang ------------- string holding the language of the code block
+beg-lang --------- point at the beginning of the lang
+end-lang --------- point at the end of the lang
+switches --------- string holding the switches
+beg-switches ----- point at the beginning of the switches
+end-switches ----- point at the end of the switches
+header-args ------ string holding the header-args
+beg-header-args -- point at the beginning of the header-args
+end-header-args -- point at the end of the header-args
+body ------------- string holding the body of the code block
+beg-body --------- point at the beginning of the body
+end-body --------- point at the end of the body"
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-src-block-regexp nil t)
+	   (goto-char (match-beginning 0))
+	   (let ((full-block (match-string 0))
+		 (beg-block (match-beginning 0))
+		 (end-block (match-end 0))
+		 (lang (match-string 2))
+		 (beg-lang (match-beginning 2))
+		 (end-lang (match-end 2))
+		 (switches (match-string 3))
+		 (beg-switches (match-beginning 3))
+		 (end-switches (match-end 3))
+		 (header-args (match-string 4))
+		 (beg-header-args (match-beginning 4))
+		 (end-header-args (match-end 4))
+		 (body (match-string 5))
+		 (beg-body (match-beginning 5))
+		 (end-body (match-end 5)))
+	     ,@body
+	     (goto-char end-block))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-src-blocks (form body))
+
+;;;###autoload
+(defmacro org-babel-map-inline-src-blocks (file &rest body)
+  "Evaluate BODY forms on each inline source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-inline-src-blocks (form body))
+
+(defvar org-babel-lob-one-liner-regexp)
+
+;;;###autoload
+(defmacro org-babel-map-call-lines (file &rest body)
+  "Evaluate BODY forms on each call line in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-call-lines (form body))
+
+;;;###autoload
+(defmacro org-babel-map-executables (file &rest body)
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file"))
+	(rx (make-symbol "rx")))
+    `(let* ((,tempvar ,file)
+	    (,rx (concat "\\(" org-babel-src-block-regexp
+			 "\\|" org-babel-inline-src-block-regexp
+			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward ,rx nil t)
+	   (goto-char (match-beginning 1))
+	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-executables (form body))
+
+;;;###autoload
+(defun org-babel-execute-buffer (&optional arg)
+  "Execute source code blocks in a buffer.
+Call `org-babel-execute-src-block' on every source block in
+the current buffer."
+  (interactive "P")
+  (org-babel-eval-wipe-error-buffer)
+  (org-save-outline-visibility t
+    (org-babel-map-executables nil
+      (if (looking-at org-babel-lob-one-liner-regexp)
+          (org-babel-lob-execute-maybe)
+        (org-babel-execute-src-block arg)))))
+
+;;;###autoload
+(defun org-babel-execute-subtree (&optional arg)
+  "Execute source code blocks in a subtree.
+Call `org-babel-execute-src-block' on every source block in
+the current subtree."
+  (interactive "P")
+  (save-restriction
+    (save-excursion
+      (org-narrow-to-subtree)
+      (org-babel-execute-buffer arg)
+      (widen))))
+
+;;;###autoload
+(defun org-babel-sha1-hash (&optional info)
+  "Generate an sha1 hash based on the value of info."
+  (interactive)
+  (let ((print-level nil)
+	(info (or info (org-babel-get-src-block-info))))
+    (setf (nth 2 info)
+	  (sort (copy-sequence (nth 2 info))
+		(lambda (a b) (string< (car a) (car b)))))
+    (let* ((rm (lambda (lst)
+		 (dolist (p '("replace" "silent" "none"
+			      "append" "prepend"))
+		   (setq lst (remove p lst)))
+		 lst))
+	   (norm (lambda (arg)
+		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
+				(copy-sequence (cdr arg))
+			      (cdr arg))))
+		     (when (and v (not (and (sequencep v)
+					    (not (consp v))
+					    (= (length v) 0))))
+		       (cond
+			((and (listp v) ; lists are sorted
+			      (member (car arg) '(:result-params)))
+			 (sort (funcall rm v) #'string<))
+			((and (stringp v) ; strings are sorted
+			      (member (car arg) '(:results :exports)))
+			 (mapconcat #'identity (sort (funcall rm (split-string v))
+						     #'string<) " "))
+			(t v)))))))
+      ((lambda (hash)
+	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
+       (let ((it (format "%s-%s"
+			 (mapconcat
+			  #'identity
+			  (delq nil (mapcar (lambda (arg)
+					      (let ((normalized (funcall norm arg)))
+						(when normalized
+						  (format "%S" normalized))))
+					    (nth 2 info))) ":")
+			 (nth 1 info))))
+	 (sha1 it))))))
+
+(defun org-babel-current-result-hash ()
+  "Return the current in-buffer hash."
+  (org-babel-where-is-src-block-result)
+  (org-no-properties (match-string 3)))
+
+(defun org-babel-set-current-result-hash (hash)
+  "Set the current in-buffer hash to HASH."
+  (org-babel-where-is-src-block-result)
+  (save-excursion (goto-char (match-beginning 3))
+		  ;; (mapc #'delete-overlay (overlays-at (point)))
+		  (replace-match hash nil nil nil 3)
+		  (org-babel-hide-hash)))
+
+(defun org-babel-hide-hash ()
+  "Hide the hash in the current results line.
+Only the initial `org-babel-hash-show' characters of the hash
+will remain visible."
+  (add-to-invisibility-spec '(org-babel-hide-hash . t))
+  (save-excursion
+    (when (and (re-search-forward org-babel-result-regexp nil t)
+               (match-string 3))
+      (let* ((start (match-beginning 3))
+             (hide-start (+ org-babel-hash-show start))
+             (end (match-end 3))
+             (hash (match-string 3))
+             ov1 ov2)
+        (setq ov1 (make-overlay start hide-start))
+        (setq ov2 (make-overlay hide-start end))
+        (overlay-put ov2 'invisible 'org-babel-hide-hash)
+        (overlay-put ov1 'babel-hash hash)))))
+
+(defun org-babel-hide-all-hashes ()
+  "Hide the hash in the current buffer.
+Only the initial `org-babel-hash-show' characters of each hash
+will remain visible.  This function should be called as part of
+the `org-mode-hook'."
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (goto-char (match-beginning 0))
+      (org-babel-hide-hash)
+      (goto-char (match-end 0)))))
+(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
+
+(defun org-babel-hash-at-point (&optional point)
+  "Return the value of the hash at POINT.
+The hash is also added as the last element of the kill ring.
+This can be called with C-c C-c."
+  (interactive)
+  (let ((hash (car (delq nil (mapcar
+			      (lambda (ol) (overlay-get ol 'babel-hash))
+                              (overlays-at (or point (point))))))))
+    (when hash (kill-new hash) (message hash))))
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
+
+(defun org-babel-result-hide-spec ()
+  "Hide portions of results lines.
+Add `org-babel-hide-result' as an invisibility spec for hiding
+portions of results lines."
+  (add-to-invisibility-spec '(org-babel-hide-result . t)))
+(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
+
+(defvar org-babel-hide-result-overlays nil
+  "Overlays hiding results.")
+
+(defun org-babel-result-hide-all ()
+  "Fold all results in the current buffer."
+  (interactive)
+  (org-babel-show-result-all)
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (save-excursion (goto-char (match-beginning 0))
+                      (org-babel-hide-result-toggle-maybe)))))
+
+(defun org-babel-show-result-all ()
+  "Unfold all results in the current buffer."
+  (mapc 'delete-overlay org-babel-hide-result-overlays)
+  (setq org-babel-hide-result-overlays nil))
+
+;;;###autoload
+(defun org-babel-hide-result-toggle-maybe ()
+  "Toggle visibility of result at point."
+  (interactive)
+  (let ((case-fold-search t))
+    (if (save-excursion
+          (beginning-of-line 1)
+          (looking-at org-babel-result-regexp))
+        (progn (org-babel-hide-result-toggle)
+               t) ;; to signal that we took action
+      nil))) ;; to signal that we did not
+
+(defun org-babel-hide-result-toggle (&optional force)
+  "Toggle the visibility of the current result."
+  (interactive)
+  (save-excursion
+    (beginning-of-line)
+    (if (re-search-forward org-babel-result-regexp nil t)
+        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
+	      (end (progn
+		     (while (looking-at org-babel-multi-line-header-regexp)
+		       (forward-line 1))
+		     (goto-char (- (org-babel-result-end) 1)) (point)))
+	      ov)
+          (if (memq t (mapcar (lambda (overlay)
+                                (eq (overlay-get overlay 'invisible)
+				    'org-babel-hide-result))
+                              (overlays-at start)))
+              (if (or (not force) (eq force 'off))
+                  (mapc (lambda (ov)
+                          (when (member ov org-babel-hide-result-overlays)
+                            (setq org-babel-hide-result-overlays
+                                  (delq ov org-babel-hide-result-overlays)))
+                          (when (eq (overlay-get ov 'invisible)
+                                    'org-babel-hide-result)
+                            (delete-overlay ov)))
+                        (overlays-at start)))
+            (setq ov (make-overlay start end))
+            (overlay-put ov 'invisible 'org-babel-hide-result)
+            ;; make the block accessible to isearch
+            (overlay-put
+             ov 'isearch-open-invisible
+             (lambda (ov)
+               (when (member ov org-babel-hide-result-overlays)
+                 (setq org-babel-hide-result-overlays
+                       (delq ov org-babel-hide-result-overlays)))
+               (when (eq (overlay-get ov 'invisible)
+                         'org-babel-hide-result)
+                 (delete-overlay ov))))
+            (push ov org-babel-hide-result-overlays)))
+      (error "Not looking at a result line"))))
+
+;; org-tab-after-check-for-cycling-hook
+(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
+;; Remove overlays when changing major mode
+(add-hook 'org-mode-hook
+	  (lambda () (org-add-hook 'change-major-mode-hook
+				   'org-babel-show-result-all 'append 'local)))
+
+(defvar org-file-properties)
+(defun org-babel-params-from-properties (&optional lang)
+  "Retrieve parameters specified as properties.
+Return an association list of any source block params which
+may be specified in the properties of the current outline entry."
+  (save-match-data
+    (let (val sym)
+      (org-babel-parse-multiple-vars
+       (delq nil
+	     (mapcar
+	      (lambda (header-arg)
+		(and (setq val (org-entry-get (point) header-arg t))
+		     (cons (intern (concat ":" header-arg))
+			   (org-babel-read val))))
+	      (mapcar
+	       #'symbol-name
+	       (mapcar
+		#'car
+		(org-babel-combine-header-arg-lists
+		 org-babel-common-header-args-w-values
+		 (progn
+		   (setq sym (intern (concat "org-babel-header-args:" lang)))
+		   (and (boundp sym) (eval sym))))))))))))
+
+(defvar org-src-preserve-indentation)
+(defun org-babel-parse-src-block-match ()
+  "Parse the results from a match of the `org-babel-src-block-regexp'."
+  (let* ((block-indentation (length (match-string 1)))
+	 (lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
+	 (switches (match-string 3))
+         (body (org-no-properties
+		(let* ((body (match-string 5))
+		       (sub-length (- (length body) 1)))
+		  (if (and (> sub-length 0)
+			   (string= "\n" (substring body sub-length)))
+		      (substring body 0 sub-length)
+		    (or body "")))))
+	 (preserve-indentation (or org-src-preserve-indentation
+				   (save-match-data
+				     (string-match "-i\\>" switches)))))
+    (list lang
+          ;; get block body less properties, protective commas, and indentation
+          (with-temp-buffer
+            (save-match-data
+              (insert (org-unescape-code-in-string body))
+	      (unless preserve-indentation (org-do-remove-indentation))
+              (buffer-string)))
+	  (org-babel-merge-params
+	   org-babel-default-header-args
+           (org-babel-params-from-properties lang)
+	   (if (boundp lang-headers) (eval lang-headers) nil)
+	   (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) ""))))
+	  switches
+	  block-indentation)))
+
+(defun org-babel-parse-inline-src-block-match ()
+  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
+  (let* ((lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
+    (list lang
+          (org-unescape-code-in-string (org-no-properties (match-string 5)))
+          (org-babel-merge-params
+           org-babel-default-inline-header-args
+           (org-babel-params-from-properties lang)
+           (if (boundp lang-headers) (eval lang-headers) nil)
+           (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) "")))))))
+
+(defun org-babel-balanced-split (string alts)
+  "Split STRING on instances of ALTS.
+ALTS is a cons of two character options where each option may be
+either the numeric code of a single character or a list of
+character alternatives.  For example to split on balanced
+instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
+  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
+	 (matched (lambda (ch last)
+		    (if (consp alts)
+			(and (funcall matches ch (cdr alts))
+			     (funcall matches last (car alts)))
+		      (funcall matches ch alts))))
+	 (balance 0) (last 0)
+	 quote partial lst)
+    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
+	    (setq balance (+ balance
+			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
+				   ((or (equal 93 ch) (equal 41 ch)) -1)
+				   (t 0))))
+	    (when (and (equal 34 ch) (not (equal 92 last)))
+	      (setq quote (not quote)))
+	    (setq partial (cons ch partial))
+	    (when (and (= balance 0) (not quote) (funcall matched ch last))
+	      (setq lst (cons (apply #'string (nreverse
+					       (if (consp alts)
+						   (cddr partial)
+						 (cdr partial))))
+			      lst))
+	      (setq partial nil))
+	    (setq last ch))
+	  (string-to-list string))
+    (nreverse (cons (apply #'string (nreverse partial)) lst))))
+
+(defun org-babel-join-splits-near-ch (ch list)
+  "Join splits where \"=\" is on either end of the split."
+  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
+	(first= (lambda (str) (= ch (aref str 0)))))
+    (reverse
+     (org-reduce (lambda (acc el)
+		   (let ((head (car acc)))
+		     (if (and head (or (funcall last= head) (funcall first= el)))
+			 (cons (concat head el) (cdr acc))
+		       (cons el acc))))
+		 list :initial-value nil))))
+
+(defun org-babel-parse-header-arguments (arg-string)
+  "Parse a string of header arguments returning an alist."
+  (when (> (length arg-string) 0)
+    (org-babel-parse-multiple-vars
+     (delq nil
+	   (mapcar
+	    (lambda (arg)
+	      (if (string-match
+		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
+		   arg)
+		  (cons (intern (match-string 1 arg))
+			(org-babel-read (org-babel-chomp (match-string 2 arg))))
+		(cons (intern (org-babel-chomp arg)) nil)))
+	    ((lambda (raw)
+	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
+	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
+
+(defun org-babel-parse-multiple-vars (header-arguments)
+  "Expand multiple variable assignments behind a single :var keyword.
+
+This allows expression of multiple variables with one :var as
+shown below.
+
+#+PROPERTY: var foo=1, bar=2"
+  (let (results)
+    (mapc (lambda (pair)
+	    (if (eq (car pair) :var)
+		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
+			(org-babel-join-splits-near-ch
+			 61 (org-babel-balanced-split (cdr pair) 32)))
+	      (push pair results)))
+	  header-arguments)
+    (nreverse results)))
+
+(defun org-babel-process-params (params)
+  "Expand variables in PARAMS and add summary parameters."
+  (let* ((processed-vars (mapcar (lambda (el)
+				   (if (consp (cdr el))
+				       (cdr el)
+				     (org-babel-ref-parse (cdr el))))
+				 (org-babel-get-header params :var)))
+	 (vars-and-names (if (and (assoc :colname-names params)
+				  (assoc :rowname-names params))
+			     (list processed-vars)
+			   (org-babel-disassemble-tables
+			    processed-vars
+			    (cdr (assoc :hlines params))
+			    (cdr (assoc :colnames params))
+			    (cdr (assoc :rownames params)))))
+	 (raw-result (or (cdr (assoc :results params)) ""))
+	 (result-params (append
+			 (split-string (if (stringp raw-result)
+					   raw-result
+					 (eval raw-result)))
+			 (cdr (assoc :result-params params)))))
+    (append
+     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
+     (list
+      (cons :colname-names (or (cdr (assoc :colname-names params))
+			       (cadr  vars-and-names)))
+      (cons :rowname-names (or (cdr (assoc :rowname-names params))
+			       (caddr vars-and-names)))
+      (cons :result-params result-params)
+      (cons :result-type  (cond ((member "output" result-params) 'output)
+				((member "value" result-params) 'value)
+				(t 'value))))
+     (org-babel-get-header params :var 'other))))
+
+;; row and column names
+(defun org-babel-del-hlines (table)
+  "Remove all 'hlines from TABLE."
+  (remove 'hline table))
+
+(defun org-babel-get-colnames (table)
+  "Return the column names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names."
+  (if (equal 'hline (nth 1 table))
+      (cons (cddr table) (car table))
+    (cons (cdr table) (car table))))
+
+(defun org-babel-get-rownames (table)
+  "Return the row names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names.  Note: this function removes any hlines in TABLE."
+  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
+	 (width (apply 'max
+		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
+	 (table (funcall trans (mapcar (lambda (row)
+					 (if (not (equal row 'hline))
+					     row
+					   (setq row '())
+					   (dotimes (n width)
+					     (setq row (cons 'hline row)))
+					   row))
+				       table))))
+    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
+		  (funcall trans (cdr table)))
+	  (remove 'hline (car table)))))
+
+(defun org-babel-put-colnames (table colnames)
+  "Add COLNAMES to TABLE if they exist."
+  (if colnames (apply 'list colnames 'hline table) table))
+
+(defun org-babel-put-rownames (table rownames)
+  "Add ROWNAMES to TABLE if they exist."
+  (if rownames
+      (mapcar (lambda (row)
+                (if (listp row)
+                    (cons (or (pop rownames) "") row)
+                  row)) table)
+    table))
+
+(defun org-babel-pick-name (names selector)
+  "Select one out of an alist of row or column names.
+SELECTOR can be either a list of names in which case those names
+will be returned directly, or an index into the list NAMES in
+which case the indexed names will be return."
+  (if (listp selector)
+      selector
+    (when names
+      (if (and selector (symbolp selector) (not (equal t selector)))
+	  (cdr (assoc selector names))
+	(if (integerp selector)
+	    (nth (- selector 1) names)
+	  (cdr (car (last names))))))))
+
+(defun org-babel-disassemble-tables (vars hlines colnames rownames)
+  "Parse tables for further processing.
+Process the variables in VARS according to the HLINES,
+ROWNAMES and COLNAMES header arguments.  Return a list consisting
+of the vars, cnames and rnames."
+  (let (cnames rnames)
+    (list
+     (mapcar
+      (lambda (var)
+        (when (listp (cdr var))
+          (when (and (not (equal colnames "no"))
+                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
+                                       (not (member 'hline (cddr (cdr var)))))))
+            (let ((both (org-babel-get-colnames (cdr var))))
+              (setq cnames (cons (cons (car var) (cdr both))
+                                 cnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and rownames (not (equal rownames "no")))
+            (let ((both (org-babel-get-rownames (cdr var))))
+              (setq rnames (cons (cons (car var) (cdr both))
+                                 rnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and hlines (not (equal hlines "yes")))
+            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
+        var)
+      vars)
+     (reverse cnames) (reverse rnames))))
+
+(defun org-babel-reassemble-table (table colnames rownames)
+  "Add column and row names to a table.
+Given a TABLE and set of COLNAMES and ROWNAMES add the names
+to the table for reinsertion to org-mode."
+  (if (listp table)
+      ((lambda (table)
+         (if (and colnames (listp (car table)) (= (length (car table))
+                                                  (length colnames)))
+             (org-babel-put-colnames table colnames) table))
+       (if (and rownames (= (length table) (length rownames)))
+           (org-babel-put-rownames table rownames) table))
+    table))
+
+(defun org-babel-where-is-src-block-head ()
+  "Find where the current source block begins.
+Return the point at the beginning of the current source
+block.  Specifically at the beginning of the #+BEGIN_SRC line.
+If the point is not on a source block then return nil."
+  (let ((initial (point)) (case-fold-search t) top bottom)
+    (or
+     (save-excursion ;; on a source name line or a #+header line
+       (beginning-of-line 1)
+       (and (or (looking-at org-babel-src-name-regexp)
+		(looking-at org-babel-multi-line-header-regexp))
+	    (progn
+	      (while (and (forward-line 1)
+			  (or (looking-at org-babel-src-name-regexp)
+			      (looking-at org-babel-multi-line-header-regexp))))
+	      (looking-at org-babel-src-block-regexp))
+            (point)))
+     (save-excursion ;; on a #+begin_src line
+       (beginning-of-line 1)
+       (and (looking-at org-babel-src-block-regexp)
+            (point)))
+     (save-excursion ;; inside a src block
+       (and
+        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
+        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
+        (< top initial) (< initial bottom)
+        (progn (goto-char top) (beginning-of-line 1)
+	       (looking-at org-babel-src-block-regexp))
+        (point))))))
+
+;;;###autoload
+(defun org-babel-goto-src-block-head ()
+  "Go to the beginning of the current code block."
+  (interactive)
+  ((lambda (head)
+     (if head (goto-char head) (error "Not currently in a code block")))
+   (org-babel-where-is-src-block-head)))
+
+;;;###autoload
+(defun org-babel-goto-named-src-block (name)
+  "Go to a named source-code block."
+  (interactive
+   (let ((completion-ignore-case t)
+	 (case-fold-search t)
+	 (under-point (thing-at-point 'line)))
+     (list (org-icompleting-read
+	    "source-block name: " (org-babel-src-block-names) nil t
+	    (cond
+	     ;; noweb
+	     ((string-match (org-babel-noweb-wrap) under-point)
+	      (let ((block-name (match-string 1 under-point)))
+		(string-match "[^(]*" block-name)
+		(match-string 0 block-name)))
+	     ;; #+call:
+	     ((string-match org-babel-lob-one-liner-regexp under-point)
+	      (let ((source-info (car (org-babel-lob-get-info))))
+		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
+		    (let ((source-name (match-string 1 source-info)))
+		      source-name))))
+	     ;; #+results:
+	     ((string-match (concat "#\\+" org-babel-results-keyword
+				    "\\:\s+\\([^\\(]*\\)") under-point)
+	      (match-string 1 under-point))
+	     ;; symbol-at-point
+	     ((and (thing-at-point 'symbol))
+	      (org-babel-find-named-block (thing-at-point 'symbol))
+	      (thing-at-point 'symbol))
+	     (""))))))
+  (let ((point (org-babel-find-named-block name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
+      (message "source-code block '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-block (name)
+  "Find a named source-code block.
+Return the location of the source block identified by source
+NAME, or nil if no such block exists.  Set match data according to
+org-babel-named-src-block-regexp."
+  (save-excursion
+    (let ((case-fold-search t)
+	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
+      (goto-char (point-min))
+      (when (or (re-search-forward regexp nil t)
+		(re-search-backward regexp nil t))
+        (match-beginning 0)))))
+
+(defun org-babel-src-block-names (&optional file)
+  "Returns the names of source blocks in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
+	(setq names (cons (match-string 3) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-goto-named-result (name)
+  "Go to a named result."
+  (interactive
+   (let ((completion-ignore-case t))
+     (list (org-icompleting-read "source-block name: "
+				 (org-babel-result-names) nil t))))
+  (let ((point (org-babel-find-named-result name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (goto-char point) (org-show-context))
+      (message "result '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-result (name &optional point)
+  "Find a named result.
+Return the location of the result named NAME in the current
+buffer or nil if no such result exists."
+  (save-excursion
+    (let ((case-fold-search t))
+      (goto-char (or point (point-min)))
+      (catch 'is-a-code-block
+	(when (re-search-forward
+	       (concat org-babel-result-regexp
+		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
+	  (when (and (string= "name" (downcase (match-string 1)))
+		     (or (beginning-of-line 1)
+			 (looking-at org-babel-src-block-regexp)
+			 (looking-at org-babel-multi-line-header-regexp)))
+	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
+	  (beginning-of-line 0) (point))))))
+
+(defun org-babel-result-names (&optional file)
+  "Returns the names of results in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-result-w-name-regexp nil t)
+	(setq names (cons (match-string 4) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-next-src-block (&optional arg)
+  "Jump to the next source block.
+With optional prefix argument ARG, jump forward ARG many source blocks."
+  (interactive "P")
+  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
+  (condition-case nil
+      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No further code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+;;;###autoload
+(defun org-babel-previous-src-block (&optional arg)
+  "Jump to the previous source block.
+With optional prefix argument ARG, jump backward ARG many source blocks."
+  (interactive "P")
+  (condition-case nil
+      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No previous code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+(defvar org-babel-load-languages)
+
+;;;###autoload
+(defun org-babel-mark-block ()
+  "Mark current src block."
+  (interactive)
+  ((lambda (head)
+     (when head
+       (save-excursion
+	 (goto-char head)
+	 (looking-at org-babel-src-block-regexp))
+       (push-mark (match-end 5) nil t)
+       (goto-char (match-beginning 5))))
+   (org-babel-where-is-src-block-head)))
+
+(defun org-babel-demarcate-block (&optional arg)
+  "Wrap or split the code in the region or on the point.
+When called from inside of a code block the current block is
+split.  When called from outside of a code block a new code block
+is created.  In both cases if the region is demarcated and if the
+region is not active then the point is demarcated."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info 'light))
+	(headers (progn (org-babel-where-is-src-block-head)
+			(match-string 4)))
+	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
+    (if info
+        (mapc
+         (lambda (place)
+           (save-excursion
+             (goto-char place)
+             (let ((lang (nth 0 info))
+                   (indent (make-string (nth 5 info) ? )))
+	       (when (string-match "^[[:space:]]*$"
+				   (buffer-substring (point-at-bol)
+						     (point-at-eol)))
+		 (delete-region (point-at-bol) (point-at-eol)))
+               (insert (concat
+			(if (looking-at "^") "" "\n")
+			indent "#+end_src\n"
+			(if arg stars indent) "\n"
+			indent "#+begin_src " lang
+			(if (> (length headers) 1)
+			    (concat " " headers) headers)
+			(if (looking-at "[\n\r]")
+			    ""
+			  (concat "\n" (make-string (current-column) ? )))))))
+	   (move-end-of-line 2))
+         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
+      (let ((start (point))
+	    (lang (org-icompleting-read "Lang: "
+					(mapcar (lambda (el) (symbol-name (car el)))
+						org-babel-load-languages)))
+	    (body (delete-and-extract-region
+		   (if (org-region-active-p) (mark) (point)) (point))))
+	(insert (concat (if (looking-at "^") "" "\n")
+			(if arg (concat stars "\n") "")
+			"#+begin_src " lang "\n"
+			body
+			(if (or (= (length body) 0)
+				(string-match "[\r\n]$" body)) "" "\n")
+			"#+end_src\n"))
+	(goto-char start) (move-end-of-line 1)))))
+
+(defvar org-babel-lob-one-liner-regexp)
+(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
+  "Find where the current source block results begin.
+Return the point at the beginning of the result of the current
+source block.  Specifically at the beginning of the results line.
+If no result exists for this block then create a results line
+following the source block."
+  (save-excursion
+    (let* ((case-fold-search t)
+	   (on-lob-line (save-excursion
+			  (beginning-of-line 1)
+			  (looking-at org-babel-lob-one-liner-regexp)))
+	   (inlinep (when (org-babel-get-inline-src-block-matches)
+		      (match-end 0)))
+	   (name (if on-lob-line
+		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
+		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
+	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
+	   found beg end)
+      (when head (goto-char head))
+      (org-with-wide-buffer
+       (setq
+	found ;; was there a result (before we potentially insert one)
+	(or
+	 inlinep
+	 (and
+	  ;; named results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it does not need to be rebuilt, then don't set end
+	  ;; - if it does need to be rebuilt then do set end
+	  name (setq beg (org-babel-find-named-result name))
+	  (prog1 beg
+	    (when (and hash (not (string= hash (match-string 3))))
+	      (goto-char beg) (setq end beg) ;; beginning of result
+	      (forward-line 1)
+	      (delete-region end (org-babel-result-end)) nil)))
+	 (and
+	  ;; unnamed results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it is found, and the hash doesn't match, delete and set end
+	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
+	  (progn (end-of-line 1)
+		 (if (eobp) (insert "\n") (forward-char 1))
+		 (setq end (point))
+		 (or (and (not name)
+			  (progn ;; unnamed results line already exists
+			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
+			    (beginning-of-line 1)
+			    (looking-at
+			     (concat org-babel-result-regexp "\n")))
+			  (prog1 (point)
+			    ;; must remove and rebuild if hash!=old-hash
+			    (if (and hash (not (string= hash (match-string 3))))
+				(prog1 nil
+				  (forward-line 1)
+				  (delete-region
+				   end (org-babel-result-end)))
+			      (setq end nil))))))))))
+      (if (not (and insert end)) found
+	(goto-char end)
+	(unless beg
+	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
+	(insert (concat
+		 (when (wholenump indent) (make-string indent ? ))
+		 "#+" org-babel-results-keyword
+		 (when hash (concat "["hash"]"))
+		 ":"
+		 (when name (concat " " name)) "\n"))
+	(unless beg (insert "\n") (backward-char))
+	(beginning-of-line 0)
+	(if hash (org-babel-hide-hash))
+	(point)))))
+
+(defvar org-block-regexp)
+(defun org-babel-read-result ()
+  "Read the result at `point' into emacs-lisp."
+  (let ((case-fold-search t) result-string)
+    (cond
+     ((org-at-table-p) (org-babel-read-table))
+     ((org-at-item-p) (org-babel-read-list))
+     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
+     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
+     ((looking-at "^[ \t]*: ")
+      (setq result-string
+	    (org-babel-trim
+	     (mapconcat (lambda (line)
+                          (if (and (> (length line) 1)
+                                   (string-match "^[ \t]*: \\(.+\\)" line))
+                              (match-string 1 line)
+                            line))
+			(split-string
+			 (buffer-substring
+                          (point) (org-babel-result-end)) "[\r\n]+")
+			"\n")))
+      (or (org-babel-number-p result-string) result-string))
+     ((looking-at org-babel-result-regexp)
+      (save-excursion (forward-line 1) (org-babel-read-result))))))
+
+(defun org-babel-read-table ()
+  "Read the table at `point' into emacs-lisp."
+  (mapcar (lambda (row)
+            (if (and (symbolp row) (equal row 'hline)) row
+              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
+          (org-table-to-lisp)))
+
+(defun org-babel-read-list ()
+  "Read the list at `point' into emacs-lisp."
+  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
+	  (mapcar #'cadr (cdr (org-list-parse-list)))))
+
+(defvar org-link-types-re)
+(defun org-babel-read-link ()
+  "Read the link at `point' into emacs-lisp.
+If the path of the link is a file path it is expanded using
+`expand-file-name'."
+  (let* ((case-fold-search t)
+         (raw (and (looking-at org-bracket-link-regexp)
+                   (org-no-properties (match-string 1))))
+         (type (and (string-match org-link-types-re raw)
+                    (match-string 1 raw))))
+    (cond
+     ((not type) (expand-file-name raw))
+     ((string= type "file")
+      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
+           (expand-file-name (match-string 2 raw))))
+     (t raw))))
+
+(defun org-babel-format-result (result &optional sep)
+  "Format RESULT for writing to file."
+  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
+    (if (listp result)
+	;; table result
+	(orgtbl-to-generic
+	 result (list :sep (or sep "\t") :fmt echo-res))
+      ;; scalar result
+      (funcall echo-res result))))
+
+(defun org-babel-insert-result
+  (result &optional result-params info hash indent lang)
+  "Insert RESULT into the current buffer.
+By default RESULT is inserted after the end of the
+current source block.  With optional argument RESULT-PARAMS
+controls insertion of results in the org-mode file.
+RESULT-PARAMS can take the following values:
+
+replace - (default option) insert results after the source block
+          replacing any previously inserted results
+
+silent -- no results are inserted into the Org-mode buffer but
+          the results are echoed to the minibuffer and are
+          ingested by Emacs (a potentially time consuming
+          process)
+
+file ---- the results are interpreted as a file path, and are
+          inserted into the buffer using the Org-mode file syntax
+
+list ---- the results are interpreted as an Org-mode list.
+
+raw ----- results are added directly to the Org-mode file.  This
+          is a good option if you code block will output org-mode
+          formatted text.
+
+drawer -- results are added directly to the Org-mode file as with
+          \"raw\", but are wrapped in a RESULTS drawer, allowing
+          them to later be replaced or removed automatically.
+
+org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
+          They are not comma-escaped when inserted, but Org syntax
+          here will be discarded when exporting the file.
+
+html ---- results are added inside of a #+BEGIN_HTML block.  This
+          is a good option if you code block will output html
+          formatted text.
+
+latex --- results are added inside of a #+BEGIN_LATEX block.
+          This is a good option if you code block will output
+          latex formatted text.
+
+code ---- the results are extracted in the syntax of the source
+          code of the language being evaluated and are added
+          inside of a #+BEGIN_SRC block with the source-code
+          language set appropriately.  Note this relies on the
+          optional LANG argument."
+  (if (stringp result)
+      (progn
+        (setq result (org-no-properties result))
+        (when (member "file" result-params)
+	  (setq result (org-babel-result-to-file
+			result (when (assoc :file-desc (nth 2 info))
+				 (or (cdr (assoc :file-desc (nth 2 info)))
+				     result))))))
+    (unless (listp result) (setq result (format "%S" result))))
+  (if (and result-params (member "silent" result-params))
+      (progn
+	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
+	result)
+    (save-excursion
+      (let* ((inlinep
+	      (save-excursion
+		(when (or (org-babel-get-inline-src-block-matches)
+			  (org-babel-get-lob-one-liner-matches))
+		  (goto-char (match-end 0))
+		  (insert (if (listp result) "\n" " "))
+		  (point))))
+	     (existing-result (unless inlinep
+				(org-babel-where-is-src-block-result
+				 t info hash indent)))
+	     (results-switches
+	      (cdr (assoc :results_switches (nth 2 info))))
+	     (visible-beg (copy-marker (point-min)))
+	     (visible-end (copy-marker (point-max)))
+	     ;; When results exist outside of the current visible
+	     ;; region of the buffer, be sure to widen buffer to
+	     ;; update them.
+	     (outside-scope-p (and existing-result
+				   (or (> visible-beg existing-result)
+				       (<= visible-end existing-result))))
+	     beg end)
+	(when (and (stringp result)  ; ensure results end in a newline
+		   (not inlinep)
+		   (> (length result) 0)
+		   (not (or (string-equal (substring result -1) "\n")
+			    (string-equal (substring result -1) "\r"))))
+	  (setq result (concat result "\n")))
+	(unwind-protect
+	    (progn
+	      (when outside-scope-p (widen))
+	      (if (not existing-result)
+		  (setq beg (or inlinep (point)))
+		(goto-char existing-result)
+		(save-excursion
+		  (re-search-forward "#" nil t)
+		  (setq indent (- (current-column) 1)))
+		(forward-line 1)
+		(setq beg (point))
+		(cond
+		 ((member "replace" result-params)
+		  (delete-region (point) (org-babel-result-end)))
+		 ((member "append" result-params)
+		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
+		 ((member "prepend" result-params)))) ; already there
+	      (setq results-switches
+		    (if results-switches (concat " " results-switches) ""))
+	      (let ((wrap (lambda (start finish &optional no-escape)
+			    (goto-char end) (insert (concat finish "\n"))
+			    (goto-char beg) (insert (concat start "\n"))
+			    (unless no-escape
+			      (org-escape-code-in-region (point) end))
+			    (goto-char end) (goto-char (point-at-eol))
+			    (setq end (point-marker))))
+		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
+		;; insert results based on type
+		(cond
+		 ;; do nothing for an empty result
+		 ((null result))
+		 ;; insert a list if preferred
+		 ((member "list" result-params)
+		  (insert
+		   (org-babel-trim
+		    (org-list-to-generic
+		     (cons 'unordered
+			   (mapcar
+			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
+			    (if (listp result) result (list result))))
+		     '(:splicep nil :istart "- " :iend "\n")))
+		   "\n"))
+		 ;; assume the result is a table if it's not a string
+		 ((funcall proper-list-p result)
+		  (goto-char beg)
+		  (insert (concat (orgtbl-to-orgtbl
+				   (if (or (eq 'hline (car result))
+					   (and (listp (car result))
+						(listp (cdr (car result)))))
+				       result (list result))
+				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
+		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
+		 ((and (listp result) (not (funcall proper-list-p result)))
+		  (insert (format "%s\n" result)))
+		 ((member "file" result-params)
+		  (when inlinep (goto-char inlinep))
+		  (insert result))
+		 (t (goto-char beg) (insert result)))
+		(when (funcall proper-list-p result) (goto-char (org-table-end)))
+		(setq end (point-marker))
+		;; possibly wrap result
+		(cond
+		 ((assoc :wrap (nth 2 info))
+		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
+		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
+		 ((member "html" result-params)
+		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
+		 ((member "latex" result-params)
+		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
+		 ((member "org" result-params)
+		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
+		 ((member "code" result-params)
+		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
+			   "#+END_SRC"))
+		 ((member "raw" result-params)
+		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
+		 ((or (member "drawer" result-params)
+		      ;; Stay backward compatible with <7.9.2
+		      (member "wrap" result-params))
+		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
+		 ((and (not (funcall proper-list-p result))
+		       (not (member "file" result-params)))
+		  (org-babel-examplize-region beg end results-switches)
+		  (setq end (point)))))
+	      ;; possibly indent the results to match the #+results line
+	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
+			 ;; in this case `table-align' does the work for us
+			 (not (and (listp result)
+				   (member "append" result-params))))
+		(indent-rigidly beg end indent))
+	      (if (null result)
+		  (if (member "value" result-params)
+		      (message "Code block returned no value.")
+		    (message "Code block produced no output."))
+		(message "Code block evaluation complete.")))
+	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
+	  (set-marker visible-beg nil)
+	  (set-marker visible-end nil))))))
+
+(defun org-babel-remove-result (&optional info)
+  "Remove the result of the current source block."
+  (interactive)
+  (let ((location (org-babel-where-is-src-block-result nil info)) start)
+    (when location
+      (setq start (- location 1))
+      (save-excursion
+        (goto-char location) (forward-line 1)
+        (delete-region start (org-babel-result-end))))))
+
+(defun org-babel-result-end ()
+  "Return the point at the end of the current set of results."
+  (save-excursion
+    (cond
+     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
+     ((org-at-item-p) (let* ((struct (org-list-struct))
+			     (prvs (org-list-prevs-alist struct)))
+			(org-list-get-list-end (point-at-bol) struct prvs)))
+     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
+      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
+	     (forward-char 1) (point)))
+     (t
+      (let ((case-fold-search t))
+	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
+	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
+				      nil t)
+		   (forward-char 1))
+	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
+	    (forward-line 1))))
+      (point)))))
+
+(defun org-babel-result-to-file (result &optional description)
+  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
+If the `default-directory' is different from the containing
+file's directory then expand relative links."
+  (when (stringp result)
+    (format "[[file:%s]%s]"
+	    (if (and default-directory
+		     buffer-file-name
+		     (not (string= (expand-file-name default-directory)
+				   (expand-file-name
+				    (file-name-directory buffer-file-name)))))
+		(expand-file-name result default-directory)
+	      result)
+	    (if description (concat "[" description "]") ""))))
+
+(defvar org-babel-capitalize-examplize-region-markers nil
+  "Make true to capitalize begin/end example markers inserted by code blocks.")
+
+(defun org-babel-examplize-region (beg end &optional results-switches)
+  "Comment out region using the inline '==' or ': ' org example quote."
+  (interactive "*r")
+  (let ((chars-between (lambda (b e)
+			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
+	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
+				     (upcase str) str))))
+    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
+	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
+	(save-excursion
+	  (goto-char beg)
+	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
+				   (delete-region beg end)))))
+      (let ((size (count-lines beg end)))
+	(save-excursion
+	  (cond ((= size 0))	      ; do nothing for an empty result
+		((< size org-babel-min-lines-for-block-output)
+		 (goto-char beg)
+		 (dotimes (n size)
+		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
+		(t
+		 (goto-char beg)
+		 (insert (if results-switches
+			     (format "%s%s\n"
+				     (funcall maybe-cap "#+begin_example")
+				     results-switches)
+			   (funcall maybe-cap "#+begin_example\n")))
+		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
+		 (insert (funcall maybe-cap "#+end_example\n")))))))))
+
+(defun org-babel-update-block-body (new-body)
+  "Update the body of the current code block to NEW-BODY."
+  (if (not (org-babel-where-is-src-block-head))
+      (error "Not in a source block")
+    (save-match-data
+      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
+    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
+
+(defun org-babel-merge-params (&rest plists)
+  "Combine all parameter association lists in PLISTS.
+Later elements of PLISTS override the values of previous elements.
+This takes into account some special considerations for certain
+parameters when merging lists."
+  (let* ((results-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
+	 (exports-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
+	 (variable-index 0)
+	 (e-merge (lambda (exclusive-groups &rest result-params)
+		    ;; maintain exclusivity of mutually exclusive parameters
+		    (let (output)
+		      (mapc (lambda (new-params)
+			      (mapc (lambda (new-param)
+				      (mapc (lambda (exclusive-group)
+					      (when (member new-param exclusive-group)
+						(mapcar (lambda (excluded-param)
+							  (setq output
+								(delete
+								 excluded-param
+								 output)))
+							exclusive-group)))
+					    exclusive-groups)
+				      (setq output (org-uniquify
+						    (cons new-param output))))
+				    new-params))
+			    result-params)
+		      output)))
+	 params results exports tangle noweb cache vars shebang comments padline)
+
+    (mapc
+     (lambda (plist)
+       (mapc
+	(lambda (pair)
+	  (case (car pair)
+	    (:var
+	     (let ((name (if (listp (cdr pair))
+			     (cadr pair)
+			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
+					      (cdr pair))
+				(intern (match-string 1 (cdr pair)))))))
+	       (if name
+		   (setq vars
+			 (append
+			  (if (member name (mapcar #'car vars))
+			      (delq nil
+				    (mapcar
+				     (lambda (p)
+				       (unless (equal (car p) name) p))
+				     vars))
+			    vars)
+			  (list (cons name pair))))
+		 ;; if no name is given and we already have named variables
+		 ;; then assign to named variables in order
+		 (if (and vars (nth variable-index vars))
+		     (prog1 (setf (cddr (nth variable-index vars))
+				  (concat (symbol-name
+					   (car (nth variable-index vars)))
+					  "=" (cdr pair)))
+		       (incf variable-index))
+		   (error "Variable \"%s\" must be assigned a default value"
+			  (cdr pair))))))
+	    (:results
+	     (setq results (funcall e-merge results-exclusive-groups
+				    results
+				    (split-string
+				     (let ((r (cdr pair)))
+				       (if (stringp r) r (eval r)))))))
+	    (:file
+	     (when (cdr pair)
+	       (setq results (funcall e-merge results-exclusive-groups
+				      results '("file")))
+	       (unless (or (member "both" exports)
+			   (member "none" exports)
+			   (member "code" exports))
+		 (setq exports (funcall e-merge exports-exclusive-groups
+					exports '("results"))))
+	       (setq params (cons pair (assq-delete-all (car pair) params)))))
+	    (:exports
+	     (setq exports (funcall e-merge exports-exclusive-groups
+				    exports (split-string (cdr pair)))))
+	    (:tangle ;; take the latest -- always overwrite
+	     (setq tangle (or (list (cdr pair)) tangle)))
+	    (:noweb
+	     (setq noweb (funcall e-merge
+				  '(("yes" "no" "tangle" "no-export"
+				     "strip-export" "eval"))
+				  noweb
+				  (split-string (or (cdr pair) "")))))
+	    (:cache
+	     (setq cache (funcall e-merge '(("yes" "no")) cache
+				  (split-string (or (cdr pair) "")))))
+	    (:padline
+	     (setq padline (funcall e-merge '(("yes" "no")) padline
+				    (split-string (or (cdr pair) "")))))
+	    (:shebang ;; take the latest -- always overwrite
+	     (setq shebang (or (list (cdr pair)) shebang)))
+	    (:comments
+	     (setq comments (funcall e-merge '(("yes" "no")) comments
+				     (split-string (or (cdr pair) "")))))
+	    (t ;; replace: this covers e.g. :session
+	     (setq params (cons pair (assq-delete-all (car pair) params))))))
+	plist))
+     plists)
+    (setq vars (reverse vars))
+    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
+    (mapc
+     (lambda (hd)
+       (let ((key (intern (concat ":" (symbol-name hd))))
+	     (val (eval hd)))
+	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
+     '(results exports tangle noweb padline cache shebang comments))
+    params))
+
+(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
+  "Set to true to use regular expressions to expand noweb references.
+This results in much faster noweb reference expansion but does
+not properly allow code blocks to inherit the \":noweb-ref\"
+header argument from buffer or subtree wide properties.")
+
+(defun org-babel-noweb-p (params context)
+  "Check if PARAMS require expansion in CONTEXT.
+CONTEXT may be one of :tangle, :export or :eval."
+  (let* (intersect
+	 (intersect (lambda (as bs)
+		      (when as
+			(if (member (car as) bs)
+			    (car as)
+			  (funcall intersect (cdr as) bs))))))
+    (funcall intersect (case context
+			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
+			 (:eval   '("yes" "no-export" "strip-export" "eval"))
+			 (:export '("yes")))
+	     (split-string (or (cdr (assoc :noweb params)) "")))))
+
+(defun org-babel-expand-noweb-references (&optional info parent-buffer)
+  "Expand Noweb references in the body of the current source code block.
+
+For example the following reference would be replaced with the
+body of the source-code block named 'example-block'.
+
+<<example-block>>
+
+Note that any text preceding the <<foo>> construct on a line will
+be interposed between the lines of the replacement text.  So for
+example if <<foo>> is placed behind a comment, then the entire
+replacement text will also be commented.
+
+This function must be called from inside of the buffer containing
+the source-code block which holds BODY.
+
+In addition the following syntax can be used to insert the
+results of evaluating the source-code block named 'example-block'.
+
+<<example-block()>>
+
+Any optional arguments can be passed to example-block by placing
+the arguments inside the parenthesis following the convention
+defined by `org-babel-lob'.  For example
+
+<<example-block(a=9)>>
+
+would set the value of argument \"a\" equal to \"9\".  Note that
+these arguments are not evaluated in the current source-code
+block but are passed literally to the \"example-block\"."
+  (let* ((parent-buffer (or parent-buffer (current-buffer)))
+         (info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+	 (ob-nww-start org-babel-noweb-wrap-start)
+	 (ob-nww-end org-babel-noweb-wrap-end)
+	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
+	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
+			    ":noweb-ref[ \t]+" "\\)"))
+         (new-body "")
+	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
+	 (c-wrap (lambda (text)
+		   (with-temp-buffer
+		     (funcall (intern (concat lang "-mode")))
+		     (comment-region (point) (progn (insert text) (point)))
+		     (org-babel-trim (buffer-string)))))
+	 index source-name evaluate prefix blocks-in-buffer)
+    (with-temp-buffer
+      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
+      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
+      (insert body) (goto-char (point-min))
+      (setq index (point))
+      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
+	(save-match-data (setf source-name (match-string 1)))
+	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
+	(save-match-data
+	  (setq prefix
+		(buffer-substring (match-beginning 0)
+				  (save-excursion
+				    (beginning-of-line 1) (point)))))
+	;; add interval to new-body (removing noweb reference)
+	(goto-char (match-beginning 0))
+	(funcall nb-add (buffer-substring index (point)))
+	(goto-char (match-end 0))
+	(setq index (point))
+	(funcall nb-add
+		 (with-current-buffer parent-buffer
+		   (save-restriction
+		     (widen)
+		     (mapconcat ;; interpose PREFIX between every line
+		      #'identity
+		      (split-string
+		       (if evaluate
+			   (let ((raw (org-babel-ref-resolve source-name)))
+			     (if (stringp raw) raw (format "%S" raw)))
+			 (or
+			  ;; retrieve from the library of babel
+			  (nth 2 (assoc (intern source-name)
+					org-babel-library-of-babel))
+			  ;; return the contents of headlines literally
+			  (save-excursion
+			    (when (org-babel-ref-goto-headline-id source-name)
+			      (org-babel-ref-headline-body)))
+			  ;; find the expansion of reference in this buffer
+			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
+				expansion)
+			    (save-excursion
+			      (goto-char (point-min))
+			      (if org-babel-use-quick-and-dirty-noweb-expansion
+				  (while (re-search-forward rx nil t)
+				    (let* ((i (org-babel-get-src-block-info 'light))
+					   (body (org-babel-expand-noweb-references i))
+					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						    "\n"))
+					   (full (if comment
+						     ((lambda (cs)
+							(concat (funcall c-wrap (car cs)) "\n"
+								body "\n"
+								(funcall c-wrap (cadr cs))))
+						      (org-babel-tangle-comment-links i))
+						   body)))
+				      (setq expansion (cons sep (cons full expansion)))))
+				(org-babel-map-src-blocks nil
+				  (let ((i (org-babel-get-src-block-info 'light)))
+				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
+						     (nth 4 i))
+						 source-name)
+				      (let* ((body (org-babel-expand-noweb-references i))
+					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						      "\n"))
+					     (full (if comment
+						       ((lambda (cs)
+							  (concat (funcall c-wrap (car cs)) "\n"
+								  body "\n"
+								  (funcall c-wrap (cadr cs))))
+							(org-babel-tangle-comment-links i))
+						     body)))
+					(setq expansion
+					      (cons sep (cons full expansion)))))))))
+			    (and expansion
+				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
+			  ;; possibly raise an error if named block doesn't exist
+			  (if (member lang org-babel-noweb-error-langs)
+			      (error "%s" (concat
+					   (org-babel-noweb-wrap source-name)
+					   "could not be resolved (see "
+					   "`org-babel-noweb-error-langs')"))
+			    "")))
+		       "[\n\r]") (concat "\n" prefix))))))
+      (funcall nb-add (buffer-substring index (point-max))))
+    new-body))
+
+(defun org-babel-script-escape (str &optional force)
+  "Safely convert tables into elisp lists."
+  (let (in-single in-double out)
+    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
+     (if (or force
+	     (and (stringp str)
+		  (> (length str) 2)
+		  (or (and (string-equal "[" (substring str 0 1))
+			   (string-equal "]" (substring str -1)))
+		      (and (string-equal "{" (substring str 0 1))
+			   (string-equal "}" (substring str -1)))
+		      (and (string-equal "(" (substring str 0 1))
+			   (string-equal ")" (substring str -1))))))
+	 (org-babel-read
+	  (concat
+	   "'"
+	   (progn
+	     (mapc
+	      (lambda (ch)
+		(setq
+		 out
+		 (case ch
+		   (91 (if (or in-double in-single) ; [
+			   (cons 91 out)
+			 (cons 40 out)))
+		   (93 (if (or in-double in-single) ; ]
+			   (cons 93 out)
+			 (cons 41 out)))
+		   (123 (if (or in-double in-single) ; {
+			    (cons 123 out)
+			  (cons 40 out)))
+		   (125 (if (or in-double in-single) ; }
+			    (cons 125 out)
+			  (cons 41 out)))
+		   (44 (if (or in-double in-single) ; ,
+			   (cons 44 out) (cons 32 out)))
+		   (39 (if in-double	; '
+			   (cons 39 out)
+			 (setq in-single (not in-single)) (cons 34 out)))
+		   (34 (if in-single	; "
+			   (append (list 34 32) out)
+			 (setq in-double (not in-double)) (cons 34 out)))
+		   (t  (cons ch out)))))
+	      (string-to-list str))
+	     (apply #'string (reverse out)))))
+       str))))
+
+(defun org-babel-read (cell &optional inhibit-lisp-eval)
+  "Convert the string value of CELL to a number if appropriate.
+Otherwise if cell looks like lisp (meaning it starts with a
+\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
+return it unmodified as a string.  Optional argument NO-LISP-EVAL
+inhibits lisp evaluation for situations in which is it not
+appropriate."
+  (if (and (stringp cell) (not (equal cell "")))
+      (or (org-babel-number-p cell)
+          (if (and (not inhibit-lisp-eval)
+		   (member (substring cell 0 1) '("(" "'" "`" "[")))
+              (eval (read cell))
+            (if (string= (substring cell 0 1) "\"")
+		(read cell)
+	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
+    cell))
+
+(defun org-babel-number-p (string)
+  "If STRING represents a number return its value."
+  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
+           (= (length (substring string (match-beginning 0)
+				 (match-end 0)))
+	      (length string)))
+      (string-to-number string)))
+
+(defun org-babel-import-elisp-from-file (file-name &optional separator)
+  "Read the results located at FILE-NAME into an elisp table.
+If the table is trivial, then return it as a scalar."
+  (let (result)
+    (save-window-excursion
+      (with-temp-buffer
+	(condition-case err
+	    (progn
+	      (org-table-import file-name separator)
+	      (delete-file file-name)
+	      (setq result (mapcar (lambda (row)
+				     (mapcar #'org-babel-string-read row))
+				   (org-table-to-lisp))))
+	  (error (message "Error reading results: %s" err) nil)))
+      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
+	  (if (consp (car result))
+	      (if (null (cdr (car result)))
+		  (caar result)
+		result)
+	    (car result))
+	result))))
+
+(defun org-babel-string-read (cell)
+  "Strip nested \"s from around strings."
+  (org-babel-read (or (and (stringp cell)
+                           (string-match "\\\"\\(.+\\)\\\"" cell)
+                           (match-string 1 cell))
+                      cell) t))
+
+(defun org-babel-reverse-string (string)
+  "Return the reverse of STRING."
+  (apply 'string (reverse (string-to-list string))))
+
+(defun org-babel-chomp (string &optional regexp)
+  "Strip trailing spaces and carriage returns from STRING.
+Default regexp used is \"[ \f\t\n\r\v]\" but can be
+overwritten by specifying a regexp as a second argument."
+  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
+    (while (and (> (length string) 0)
+                (string-match regexp (substring string -1)))
+      (setq string (substring string 0 -1)))
+    string))
+
+(defun org-babel-trim (string &optional regexp)
+  "Strip leading and trailing spaces and carriage returns from STRING.
+Like `org-babel-chomp' only it runs on both the front and back
+of the string."
+  (org-babel-chomp (org-babel-reverse-string
+                    (org-babel-chomp (org-babel-reverse-string string) regexp))
+                   regexp))
+
+(defvar org-babel-org-babel-call-process-region-original nil)
+(defun org-babel-tramp-handle-call-process-region
+  (start end program &optional delete buffer display &rest args)
+  "Use Tramp to handle `call-process-region'.
+Fixes a bug in `tramp-handle-call-process-region'."
+  (if (and (featurep 'tramp) (file-remote-p default-directory))
+      (let ((tmpfile (tramp-compat-make-temp-file "")))
+	(write-region start end tmpfile)
+	(when delete (delete-region start end))
+	(unwind-protect
+	    ;;	(apply 'call-process program tmpfile buffer display args)
+            ;; bug in tramp
+	    (apply 'process-file program tmpfile buffer display args)
+	  (delete-file tmpfile)))
+    ;; org-babel-call-process-region-original is the original emacs
+    ;; definition.  It is in scope from the let binding in
+    ;; org-babel-execute-src-block
+    (apply org-babel-call-process-region-original
+           start end program delete buffer display args)))
+
+(defun org-babel-local-file-name (file)
+  "Return the local name component of FILE."
+  (if (file-remote-p file)
+      (let (localname)
+	(with-parsed-tramp-file-name file nil
+				     localname))
+    file))
+
+(defun org-babel-process-file-name (name &optional no-quote-p)
+  "Prepare NAME to be used in an external process.
+If NAME specifies a remote location, the remote portion of the
+name is removed, since in that case the process will be executing
+remotely.  The file name is then processed by `expand-file-name'.
+Unless second argument NO-QUOTE-P is non-nil, the file name is
+additionally processed by `shell-quote-argument'"
+  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
+   (expand-file-name (org-babel-local-file-name name))))
+
+(defvar org-babel-temporary-directory)
+(unless (or noninteractive (boundp 'org-babel-temporary-directory))
+  (defvar org-babel-temporary-directory
+    (or (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory)
+	     org-babel-temporary-directory)
+	(make-temp-file "babel-" t))
+    "Directory to hold temporary files created to execute code blocks.
+Used by `org-babel-temp-file'.  This directory will be removed on
+Emacs shutdown."))
+
+(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
+  "Call the code to parse raw string results according to RESULT-PARAMS."
+  (declare (indent 1))
+  `(unless (member "none" result-params)
+     (if (or (member "scalar" result-params)
+	     (member "verbatim" result-params)
+	     (member "html" result-params)
+	     (member "code" result-params)
+	     (member "pp" result-params)
+	     (and (member "output" result-params)
+		  (not (member "table" result-params))))
+	 ,scalar-form
+       ,@table-forms)))
+
+(defun org-babel-temp-file (prefix &optional suffix)
+  "Create a temporary file in the `org-babel-temporary-directory'.
+Passes PREFIX and SUFFIX directly to `make-temp-file' with the
+value of `temporary-file-directory' temporarily set to the value
+of `org-babel-temporary-directory'."
+  (if (file-remote-p default-directory)
+      (make-temp-file
+       (concat (file-remote-p default-directory)
+	       (expand-file-name
+		prefix temporary-file-directory)
+	       nil suffix))
+    (let ((temporary-file-directory
+	   (or (and (boundp 'org-babel-temporary-directory)
+		    (file-exists-p org-babel-temporary-directory)
+		    org-babel-temporary-directory)
+	       temporary-file-directory)))
+      (make-temp-file prefix nil suffix))))
+
+(defun org-babel-remove-temporary-directory ()
+  "Remove `org-babel-temporary-directory' on Emacs shutdown."
+  (when (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory))
+    ;; taken from `delete-directory' in files.el
+    (condition-case nil
+	(progn
+	  (mapc (lambda (file)
+		  ;; This test is equivalent to
+		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
+		  ;; but more efficient
+		  (if (eq t (car (file-attributes file)))
+		      (delete-directory file)
+		    (delete-file file)))
+		;; We do not want to delete "." and "..".
+		(directory-files org-babel-temporary-directory 'full
+				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
+	  (delete-directory org-babel-temporary-directory))
+      (error
+       (message "Failed to remove temporary Org-babel directory %s"
+		(if (boundp 'org-babel-temporary-directory)
+		    org-babel-temporary-directory
+		  "[directory not defined]"))))))
+
+(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
+
+(provide 'ob-core)
+
+;; Local variables:
+;; generated-autoload-file: "org-loaddefs.el"
+;; End:
+
+;;; ob-core.el ends here
diff --git a/lisp/ob-dot.el b/lisp/ob-dot.el
index 99748b0..3ad832b 100644
--- a/lisp/ob-dot.el
+++ b/lisp/ob-dot.el
@@ -39,7 +39,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 
 (defvar org-babel-default-header-args:dot
   '((:results . "file") (:exports . "results"))
diff --git a/lisp/ob-emacs-lisp.el b/lisp/ob-emacs-lisp.el
index 3ba14f6..60e2796 100644
--- a/lisp/ob-emacs-lisp.el
+++ b/lisp/ob-emacs-lisp.el
@@ -27,7 +27,6 @@
 
 ;;; Code:
 (require 'ob)
-(eval-when-compile (require 'ob-comint))
 
 (defvar org-babel-default-header-args:emacs-lisp
   '((:hlines . "yes") (:colnames . "no"))
diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index 461421e..e2be94d 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -23,7 +23,7 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob)
+(require 'ob-core)
 (eval-when-compile
   (require 'cl))
 
diff --git a/lisp/ob-fortran.el b/lisp/ob-fortran.el
index fb688bc..6faeb79 100644
--- a/lisp/ob-fortran.el
+++ b/lisp/ob-fortran.el
@@ -28,7 +28,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 (require 'cc-mode)
 
 (declare-function org-entry-get "org"
diff --git a/lisp/ob-gnuplot.el b/lisp/ob-gnuplot.el
index 55c4153..7bb705d 100644
--- a/lisp/ob-gnuplot.el
+++ b/lisp/ob-gnuplot.el
@@ -39,8 +39,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
 (eval-when-compile (require 'cl))
 
 (declare-function org-time-string-to-time "org" (s))
diff --git a/lisp/ob-haskell.el b/lisp/ob-haskell.el
index 03972ef..358e00f 100644
--- a/lisp/ob-haskell.el
+++ b/lisp/ob-haskell.el
@@ -40,7 +40,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-comint)
 (require 'comint)
 (eval-when-compile (require 'cl))
 
diff --git a/lisp/ob-io.el b/lisp/ob-io.el
index f47bef8..f4c9add 100644
--- a/lisp/ob-io.el
+++ b/lisp/ob-io.el
@@ -33,9 +33,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (defvar org-babel-tangle-lang-exts) ;; Autoloaded
diff --git a/lisp/ob-java.el b/lisp/ob-java.el
index 99f66b9..3b02693 100644
--- a/lisp/ob-java.el
+++ b/lisp/ob-java.el
@@ -28,7 +28,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 
 (defvar org-babel-tangle-lang-exts)
 (add-to-list 'org-babel-tangle-lang-exts '("java" . "java"))
diff --git a/lisp/ob-js.el b/lisp/ob-js.el
index 2138172..31de942 100644
--- a/lisp/ob-js.el
+++ b/lisp/ob-js.el
@@ -39,9 +39,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function run-mozilla "ext:moz" (arg))
diff --git a/lisp/ob-keys.el b/lisp/ob-keys.el
index 3e3f496..283c2b5 100644
--- a/lisp/ob-keys.el
+++ b/lisp/ob-keys.el
@@ -29,7 +29,7 @@
 ;; functions and their associated keys.
 
 ;;; Code:
-(require 'ob)
+(require 'ob-core)
 
 (defvar org-babel-key-prefix "\C-c\C-v"
   "The key prefix for Babel interactive key-bindings.
diff --git a/lisp/ob-lilypond.el b/lisp/ob-lilypond.el
index e19b0c3..1a8fa52 100644
--- a/lisp/ob-lilypond.el
+++ b/lisp/ob-lilypond.el
@@ -30,10 +30,7 @@
 ;; http://lilypond.org/manuals.html
 
 ;;; Code:
-
 (require 'ob)
-(require 'ob-eval)
-(require 'ob-tangle)
 (require 'outline)
 (defalias 'lilypond-mode 'LilyPond-mode)
 
diff --git a/lisp/ob-lob.el b/lisp/ob-lob.el
index 8b5f14d..5c21db7 100644
--- a/lisp/ob-lob.el
+++ b/lisp/ob-lob.el
@@ -25,7 +25,7 @@
 ;;; Code:
 (eval-when-compile
   (require 'cl))
-(require 'ob)
+(require 'ob-core)
 (require 'ob-table)
 
 (declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
diff --git a/lisp/ob-mscgen.el b/lisp/ob-mscgen.el
index 64d3545..6311f00 100644
--- a/lisp/ob-mscgen.el
+++ b/lisp/ob-mscgen.el
@@ -55,7 +55,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 
 (defvar org-babel-default-header-args:mscgen
   '((:results . "file") (:exports . "results"))
diff --git a/lisp/ob-ocaml.el b/lisp/ob-ocaml.el
index d2bf366..24aa623 100644
--- a/lisp/ob-ocaml.el
+++ b/lisp/ob-ocaml.el
@@ -36,7 +36,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-comint)
 (require 'comint)
 (eval-when-compile (require 'cl))
 
diff --git a/lisp/ob-octave.el b/lisp/ob-octave.el
index 73f25ec..cd1a44e 100644
--- a/lisp/ob-octave.el
+++ b/lisp/ob-octave.el
@@ -30,9 +30,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function matlab-shell "ext:matlab-mode")
diff --git a/lisp/ob-perl.el b/lisp/ob-perl.el
index abf0ed6..c24e70f 100644
--- a/lisp/ob-perl.el
+++ b/lisp/ob-perl.el
@@ -28,7 +28,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (defvar org-babel-tangle-lang-exts)
diff --git a/lisp/ob-picolisp.el b/lisp/ob-picolisp.el
index 1972d29..df577ad 100644
--- a/lisp/ob-picolisp.el
+++ b/lisp/ob-picolisp.el
@@ -54,8 +54,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
-(require 'ob-comint)
 (require 'comint)
 (eval-when-compile (require 'cl))
 
diff --git a/lisp/ob-plantuml.el b/lisp/ob-plantuml.el
index 37d8b7d..2313d8e 100644
--- a/lisp/ob-plantuml.el
+++ b/lisp/ob-plantuml.el
@@ -35,7 +35,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 
 (defvar org-babel-default-header-args:plantuml
   '((:results . "file") (:exports . "results"))
diff --git a/lisp/ob-python.el b/lisp/ob-python.el
index 4d94ecf..96318c9 100644
--- a/lisp/ob-python.el
+++ b/lisp/ob-python.el
@@ -28,9 +28,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function org-remove-indentation "org" )
diff --git a/lisp/ob-ref.el b/lisp/ob-ref.el
index af4ee6a..1149111 100644
--- a/lisp/ob-ref.el
+++ b/lisp/ob-ref.el
@@ -49,7 +49,7 @@
 ;;  #+end_src
 
 ;;; Code:
-(require 'ob)
+(require 'ob-core)
 (eval-when-compile
   (require 'cl))
 
diff --git a/lisp/ob-ruby.el b/lisp/ob-ruby.el
index 54077d0..dc9ad04 100644
--- a/lisp/ob-ruby.el
+++ b/lisp/ob-ruby.el
@@ -37,9 +37,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function run-ruby "ext:inf-ruby" (&optional command name))
diff --git a/lisp/ob-sass.el b/lisp/ob-sass.el
index c960610..5c459d6 100644
--- a/lisp/ob-sass.el
+++ b/lisp/ob-sass.el
@@ -39,7 +39,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
 
 (defvar org-babel-default-header-args:sass '())
 
diff --git a/lisp/ob-scala.el b/lisp/ob-scala.el
index df344ff..99b18b3 100644
--- a/lisp/ob-scala.el
+++ b/lisp/ob-scala.el
@@ -31,9 +31,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (defvar org-babel-tangle-lang-exts) ;; Autoloaded
diff --git a/lisp/ob-scheme.el b/lisp/ob-scheme.el
index ce29928..e6ef755 100644
--- a/lisp/ob-scheme.el
+++ b/lisp/ob-scheme.el
@@ -38,9 +38,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (eval-when-compile (require 'cl))
 
 (declare-function run-scheme "ext:cmuscheme" (cmd))
diff --git a/lisp/ob-screen.el b/lisp/ob-screen.el
index c628892..f164763 100644
--- a/lisp/ob-screen.el
+++ b/lisp/ob-screen.el
@@ -34,7 +34,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
 
 (defvar org-babel-screen-location "screen"
   "The command location for screen.
diff --git a/lisp/ob-sh.el b/lisp/ob-sh.el
index 9b21d05..f918d61 100644
--- a/lisp/ob-sh.el
+++ b/lisp/ob-sh.el
@@ -27,9 +27,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-ref)
-(require 'ob-comint)
-(require 'ob-eval)
 (require 'shell)
 (eval-when-compile (require 'cl))
 
diff --git a/lisp/ob-sqlite.el b/lisp/ob-sqlite.el
index 1f8a6c0..658ce17 100644
--- a/lisp/ob-sqlite.el
+++ b/lisp/ob-sqlite.el
@@ -27,8 +27,6 @@
 
 ;;; Code:
 (require 'ob)
-(require 'ob-eval)
-(require 'ob-ref)
 
 (declare-function org-fill-template "org" (template alist))
 (declare-function org-table-convert-region "org-table"
diff --git a/lisp/ob-table.el b/lisp/ob-table.el
index 242ddf0..b7cd106 100644
--- a/lisp/ob-table.el
+++ b/lisp/ob-table.el
@@ -50,7 +50,7 @@
 ;; #+TBLFM: $2='(sbe 'fibbd (n $1))
 
 ;;; Code:
-(require 'ob)
+(require 'ob-core)
 
 (defun org-babel-table-truncate-at-newline (string)
   "Replace newline character with ellipses.
diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el
index 7e25b2c..697a269 100644
--- a/lisp/ob-tangle.el
+++ b/lisp/ob-tangle.el
@@ -26,7 +26,6 @@
 ;; Extract the code from source blocks out into raw source-code files.
 
 ;;; Code:
-(require 'ob)
 (require 'org-src)
 (eval-when-compile
   (require 'cl))
diff --git a/lisp/ob.el b/lisp/ob.el
index 0aba523..3010503 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -3,7 +3,6 @@
 ;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
 
 ;; Authors: Eric Schulte
-;;	Dan Davison
 ;; Keywords: literate programming, reproducible research
 ;; Homepage: http://orgmode.org
 
@@ -23,2604 +22,15 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(eval-when-compile
-  (require 'cl))
 (require 'ob-eval)
-(require 'org-macs)
-(require 'org-compat)
-
-(defconst org-babel-exeext
-  (if (memq system-type '(windows-nt cygwin))
-      ".exe"
-    nil))
-(defvar org-babel-call-process-region-original)
-(defvar org-src-lang-modes)
-(defvar org-babel-library-of-babel)
-(declare-function show-all "outline" ())
-(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
-(declare-function org-mark-ring-push "org" (&optional pos buffer))
-(declare-function tramp-compat-make-temp-file "tramp-compat"
-                  (filename &optional dir-flag))
-(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
-(declare-function tramp-file-name-user "tramp" (vec))
-(declare-function tramp-file-name-host "tramp" (vec))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function org-icompleting-read "org" (&rest args))
-(declare-function org-edit-src-code "org-src"
-                  (&optional context code edit-buffer-name quietp))
-(declare-function org-edit-src-exit "org-src"  (&optional context))
-(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
-(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
-(declare-function org-outline-overlay-data "org" (&optional use-markers))
-(declare-function org-set-outline-overlay-data "org" (data))
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-entry-get "org"
-		  (pom property &optional inherit literal-nil))
-(declare-function org-make-options-regexp "org" (kwds &optional extra))
-(declare-function org-do-remove-indentation "org" (&optional n))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-cycle "org" (&optional arg))
-(declare-function org-uniquify "org" (list))
-(declare-function org-current-level "org" ())
-(declare-function org-table-import "org-table" (file arg))
-(declare-function org-add-hook "org-compat"
-		  (hook function &optional append local))
-(declare-function org-table-align "org-table" ())
-(declare-function org-table-end "org-table" (&optional table-type))
-(declare-function orgtbl-to-generic "org-table" (table params))
-(declare-function orgtbl-to-orgtbl "org-table" (table params))
-(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
-(declare-function org-babel-lob-get-info "ob-lob" nil)
-(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
-(declare-function org-babel-ref-parse "ob-ref" (assignment))
-(declare-function org-babel-ref-resolve "ob-ref" (ref))
-(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
-(declare-function org-babel-ref-headline-body "ob-ref" ())
-(declare-function org-babel-lob-execute-maybe "ob-lob" ())
-(declare-function org-number-sequence "org-compat" (from &optional to inc))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-list-parse-list "org-list" (&optional delete))
-(declare-function org-list-to-generic "org-list" (LIST PARAMS))
-(declare-function org-list-struct "org-list" ())
-(declare-function org-list-prevs-alist "org-list" (struct))
-(declare-function org-list-get-list-end "org-list" (item struct prevs))
-(declare-function org-remove-if "org" (predicate seq))
-(declare-function org-completing-read "org" (&rest args))
-(declare-function org-escape-code-in-region "org-src" (beg end))
-(declare-function org-unescape-code-in-string "org-src" (s))
-(declare-function org-table-to-lisp "org-table" (&optional txt))
-
-(defgroup org-babel nil
-  "Code block evaluation and management in `org-mode' documents."
-  :tag "Babel"
-  :group 'org)
-
-(defcustom org-confirm-babel-evaluate t
-  "Confirm before evaluation.
-Require confirmation before interactively evaluating code
-blocks in Org-mode buffers.  The default value of this variable
-is t, meaning confirmation is required for any code block
-evaluation.  This variable can be set to nil to inhibit any
-future confirmation requests.  This variable can also be set to a
-function which takes two arguments the language of the code block
-and the body of the code block.  Such a function should then
-return a non-nil value if the user should be prompted for
-execution or nil if no prompt is required.
-
-Warning: Disabling confirmation may result in accidental
-evaluation of potentially harmful code.  It may be advisable
-remove code block execution from C-c C-c as further protection
-against accidental code block evaluation.  The
-`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
-remove code block execution from the C-c C-c keybinding."
-  :group 'org-babel
-  :version "24.1"
-  :type '(choice boolean function))
-;; don't allow this variable to be changed through file settings
-(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
-
-(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
-  "Remove code block evaluation from the C-c C-c key binding."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-
-(defcustom org-babel-results-keyword "RESULTS"
-  "Keyword used to name results generated by code blocks.
-Should be either RESULTS or NAME however any capitalization may
-be used."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-start "<<"
-  "String used to begin a noweb reference in a code block.
-See also `org-babel-noweb-wrap-end'."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-end ">>"
-  "String used to end a noweb reference in a code block.
-See also `org-babel-noweb-wrap-start'."
-  :group 'org-babel
-  :type 'string)
-
-(defun org-babel-noweb-wrap (&optional regexp)
-  (concat org-babel-noweb-wrap-start
-	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
-	  org-babel-noweb-wrap-end))
-
-(defvar org-babel-src-name-regexp
-  "^[ \t]*#\\+name:[ \t]*"
-  "Regular expression used to match a source name line.")
-
-(defvar org-babel-multi-line-header-regexp
-  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
-  "Regular expression used to match multi-line header arguments.")
-
-(defvar org-babel-src-name-w-name-regexp
-  (concat org-babel-src-name-regexp
-	  "\\("
-	  org-babel-multi-line-header-regexp
-	  "\\)*"
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
-  "Regular expression matching source name lines with a name.")
-
-(defvar org-babel-src-block-regexp
-  (concat
-   ;; (1) indentation                 (2) lang
-   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
-   ;; (3) switches
-   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
-   ;; (4) header arguments
-   "\\([^\n]*\\)\n"
-   ;; (5) body
-   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
-  "Regexp used to identify code blocks.")
-
-(defvar org-babel-inline-src-block-regexp
-  (concat
-   ;; (1) replacement target (2) lang
-   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
-   ;; (3,4) (unused, headers)
-   "\\(\\|\\[\\(.*?\\)\\]\\)"
-   ;; (5) body
-   "{\\([^\f\n\r\v]+?\\)}\\)")
-  "Regexp used to identify inline src-blocks.")
-
-(defun org-babel-get-header (params key &optional others)
-  "Select only header argument of type KEY from a list.
-Optional argument OTHERS indicates that only the header that do
-not match KEY should be returned."
-  (delq nil
-	(mapcar
-	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
-	 params)))
-
-(defun org-babel-get-inline-src-block-matches()
-  "Set match data if within body of an inline source block.
-Returns non-nil if match-data set"
-  (let ((src-at-0-p (save-excursion
-		      (beginning-of-line 1)
-		      (string= "src" (thing-at-point 'word))))
-	(first-line-p (= 1 (line-number-at-pos)))
-	(orig (point)))
-    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
-			    (first-line-p "[[:punct:] \t]src_")
-			    (t "[[:punct:] \f\t\n\r\v]src_")))
-	  (lower-limit (if first-line-p
-			   nil
-			 (- (point-at-bol) 1))))
-      (save-excursion
-	(when (or (and src-at-0-p (bobp))
-		  (and (re-search-forward "}" (point-at-eol) t)
-		       (re-search-backward search-for lower-limit t)
-		       (> orig (point))))
-	  (when (looking-at org-babel-inline-src-block-regexp)
-	    t ))))))
-
-(defvar org-babel-inline-lob-one-liner-regexp)
-(defun org-babel-get-lob-one-liner-matches()
-  "Set match data if on line of an lob one liner.
-Returns non-nil if match-data set"
-  (save-excursion
-    (unless (= (point) (point-at-bol)) ;; move before inline block
-      (re-search-backward "[ \f\t\n\r\v]" nil t))
-    (if (looking-at org-babel-inline-lob-one-liner-regexp)
-	t
-      nil)))
-
-(defun org-babel-get-src-block-info (&optional light)
-  "Get information on the current source block.
-
-Optional argument LIGHT does not resolve remote variable
-references; a process which could likely result in the execution
-of other code blocks.
-
-Returns a list
- (language body header-arguments-alist switches name indent)."
-  (let ((case-fold-search t) head info name indent)
-    ;; full code block
-    (if (setq head (org-babel-where-is-src-block-head))
-	(save-excursion
-	  (goto-char head)
-	  (setq info (org-babel-parse-src-block-match))
-	  (setq indent (car (last info)))
-	  (setq info (butlast info))
-	  (while (and (forward-line -1)
-		      (looking-at org-babel-multi-line-header-regexp))
-	    (setf (nth 2 info)
-		  (org-babel-merge-params
-		   (nth 2 info)
-		   (org-babel-parse-header-arguments (match-string 1)))))
-	  (when (looking-at org-babel-src-name-w-name-regexp)
-	    (setq name (org-no-properties (match-string 3)))
-	    (when (and (match-string 5) (> (length (match-string 5)) 0))
-	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
-		    (org-babel-merge-params
-		     (mapcar
-		      (lambda (ref) (cons :var ref))
-		      (mapcar
-		       (lambda (var) ;; check that each variable is initialized
-			 (if (string-match ".+=.+" var)
-			     var
-			   (error
-			    "variable \"%s\"%s must be assigned a default value"
-			    var (if name (format " in block \"%s\"" name) ""))))
-		       (org-babel-ref-split-args (match-string 5))))
-		     (nth 2 info))))))
-      ;; inline source block
-      (when (org-babel-get-inline-src-block-matches)
-	(setq info (org-babel-parse-inline-src-block-match))))
-    ;; resolve variable references and add summary parameters
-    (when (and info (not light))
-      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
-    (when info (append info (list name indent)))))
-
-(defvar org-current-export-file) ; dynamically bound
-(defun org-babel-confirm-evaluate (info)
-  "Confirm evaluation of the code block INFO.
-This behavior can be suppressed by setting the value of
-`org-confirm-babel-evaluate' to nil, in which case all future
-interactive code block evaluations will proceed without any
-confirmation from the user.
-
-Note disabling confirmation may result in accidental evaluation
-of potentially harmful code."
-  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
-		   (when (assoc :noeval (nth 2 info)) "no")))
-         (query (cond ((equal eval "query") t)
-		      ((and (boundp 'org-current-export-file)
-			    org-current-export-file
-			    (equal eval "query-export")) t)
-                      ((functionp org-confirm-babel-evaluate)
-                       (funcall org-confirm-babel-evaluate
-                                (nth 0 info) (nth 1 info)))
-                      (t org-confirm-babel-evaluate))))
-    (if (or (equal eval "never") (equal eval "no")
-	    (and (boundp 'org-current-export-file)
-		 org-current-export-file
-		 (or (equal eval "no-export")
-		     (equal eval "never-export")))
-	    (and query
-		 (not (yes-or-no-p
-		       (format "Evaluate this%scode block%son your system? "
-			       (if info (format " %s " (nth 0 info)) " ")
-			       (if (nth 4 info)
-				   (format " (%s) " (nth 4 info)) " "))))))
-	(prog1 nil (message "Evaluation %s"
-			    (if (or (equal eval "never") (equal eval "no")
-				    (equal eval "no-export")
-				    (equal eval "never-export"))
-				"Disabled" "Aborted")))
-      t)))
-
-;;;###autoload
-(defun org-babel-execute-safely-maybe ()
-  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
-    (org-babel-execute-maybe)))
-
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
-
-;;;###autoload
-(defun org-babel-execute-maybe ()
-  (interactive)
-  (or (org-babel-execute-src-block-maybe)
-      (org-babel-lob-execute-maybe)))
-
-(defun org-babel-execute-src-block-maybe ()
-  "Conditionally execute a source block.
-Detect if this is context for a Babel src-block and if so
-then run `org-babel-execute-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-eval-wipe-error-buffer)
-	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
-
-;;;###autoload
-(defun org-babel-view-src-block-info ()
-  "Display information on the current source block.
-This includes header arguments, language and name, and is largely
-a window into the `org-babel-get-src-block-info' function."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info 'light))
-	(full (lambda (it) (> (length it) 0)))
-	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
-    (when info
-      (with-help-window (help-buffer)
-	(let ((name        (nth 4 info))
-	      (lang        (nth 0 info))
-	      (switches    (nth 3 info))
-	      (header-args (nth 2 info)))
-	  (when name            (funcall printf "Name: %s\n"     name))
-	  (when lang            (funcall printf "Lang: %s\n"     lang))
-	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
-	  (funcall printf "Header Arguments:\n")
-	  (dolist (pair (sort header-args
-			      (lambda (a b) (string< (symbol-name (car a))
-						     (symbol-name (car b))))))
-	    (when (funcall full (cdr pair))
-	      (funcall printf "\t%S%s\t%s\n"
-		       (car pair)
-		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
-		       (cdr pair)))))))))
-
-;;;###autoload
-(defun org-babel-expand-src-block-maybe ()
-  "Conditionally expand a source block.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-expand-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-expand-src-block current-prefix-arg info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-load-in-session-maybe ()
-  "Conditionally load a source block in a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-load-in-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-load-in-session current-prefix-arg info) t)
-      nil)))
-
-(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
-
-;;;###autoload
-(defun org-babel-pop-to-session-maybe ()
-  "Conditionally pop to a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-pop-to-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
-
-(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
-
-(defconst org-babel-common-header-args-w-values
-  '((cache	. ((no yes)))
-    (cmdline	. :any)
-    (colnames	. ((nil no yes)))
-    (comments	. ((no link yes org both noweb)))
-    (dir	. :any)
-    (eval	. ((never query)))
-    (exports	. ((code results both none)))
-    (file	. :any)
-    (file-desc  . :any)
-    (hlines	. ((no yes)))
-    (mkdirp	. ((yes no)))
-    (no-expand)
-    (noeval)
-    (noweb	. ((yes no tangle no-export strip-export)))
-    (noweb-ref	. :any)
-    (noweb-sep  . :any)
-    (padline	. ((yes no)))
-    (results	. ((file list vector table scalar verbatim)
-		   (raw html latex org code pp drawer)
-		   (replace silent none append prepend)
-		   (output value)))
-    (rownames	. ((no yes)))
-    (sep	. :any)
-    (session	. :any)
-    (shebang	. :any)
-    (tangle	. ((tangle yes no :any)))
-    (var	. :any)
-    (wrap       . :any)))
-
-(defconst org-babel-header-arg-names
-  (mapcar #'car org-babel-common-header-args-w-values)
-  "Common header arguments used by org-babel.
-Note that individual languages may define their own language
-specific header arguments as well.")
-
-(defvar org-babel-default-header-args
-  '((:session . "none") (:results . "replace") (:exports . "code")
-    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
-    (:padnewline . "yes"))
-  "Default arguments to use when evaluating a source block.")
-
-(defvar org-babel-default-inline-header-args
-  '((:session . "none") (:results . "replace") (:exports . "results"))
-  "Default arguments to use when evaluating an inline source block.")
-
-(defvar org-babel-data-names '("tblname" "results" "name"))
-
-(defvar org-babel-result-regexp
-  (concat "^[ \t]*#\\+"
-	  (regexp-opt org-babel-data-names t)
-	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
-  "Regular expression used to match result lines.
-If the results are associated with a hash key then the hash will
-be saved in the second match data.")
-
-(defvar org-babel-result-w-name-regexp
-  (concat org-babel-result-regexp
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
-
-(defvar org-babel-min-lines-for-block-output 10
-  "The minimum number of lines for block output.
-If number of lines of output is equal to or exceeds this
-value, the output is placed in a #+begin_example...#+end_example
-block.  Otherwise the output is marked as literal by inserting
-colons at the starts of the lines.  This variable only takes
-effect if the :results output option is in effect.")
-
-(defvar org-babel-noweb-error-langs nil
-  "Languages for which Babel will raise literate programming errors.
-List of languages for which errors should be raised when the
-source code block satisfying a noweb reference in this language
-can not be resolved.")
-
-(defvar org-babel-hash-show 4
-  "Number of initial characters to show of a hidden results hash.")
-
-(defvar org-babel-after-execute-hook nil
-  "Hook for functions to be called after `org-babel-execute-src-block'")
-
-(defun org-babel-named-src-block-regexp-for-name (name)
-  "This generates a regexp used to match a src block named NAME."
-  (concat org-babel-src-name-regexp (regexp-quote name)
-	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
-	  (substring org-babel-src-block-regexp 1)))
-
-(defun org-babel-named-data-regexp-for-name (name)
-  "This generates a regexp used to match data named NAME."
-  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
-
-;;; functions
-(defvar call-process-region)
-
-;;;###autoload
-(defun org-babel-execute-src-block (&optional arg info params)
-  "Execute the current source code block.
-Insert the results of execution into the buffer.  Source code
-execution and the collection and formatting of results can be
-controlled through a variety of header arguments.
-
-With prefix argument ARG, force re-execution even if an existing
-result cached in the buffer would otherwise have been returned.
-
-Optionally supply a value for INFO in the form returned by
-`org-babel-get-src-block-info'.
-
-Optionally supply a value for PARAMS which will be merged with
-the header arguments specified at the front of the source code
-block."
-  (interactive)
-  (let ((info (or info (org-babel-get-src-block-info))))
-    (when (org-babel-confirm-evaluate
-	   (let ((i info))
-	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
-	     i))
-      (let* ((lang (nth 0 info))
-	     (params (if params
-			 (org-babel-process-params
-			  (org-babel-merge-params (nth 2 info) params))
-		       (nth 2 info)))
-	     (cache? (and (not arg) (cdr (assoc :cache params))
-			  (string= "yes" (cdr (assoc :cache params)))))
-	     (result-params (cdr (assoc :result-params params)))
-	     (new-hash (when cache? (org-babel-sha1-hash info)))
-	     (old-hash (when cache? (org-babel-current-result-hash)))
-	     (body (setf (nth 1 info)
-			 (if (org-babel-noweb-p params :eval)
-			     (org-babel-expand-noweb-references info)
-			   (nth 1 info))))
-	     (dir (cdr (assoc :dir params)))
-	     (default-directory
-	       (or (and dir (file-name-as-directory (expand-file-name dir)))
-		   default-directory))
-	     (org-babel-call-process-region-original
-	      (if (boundp 'org-babel-call-process-region-original)
-		  org-babel-call-process-region-original
-		(symbol-function 'call-process-region)))
-	     (indent (car (last info)))
-	     result cmd)
-	(unwind-protect
-	    (let ((call-process-region
-		   (lambda (&rest args)
-		     (apply 'org-babel-tramp-handle-call-process-region args))))
-	      (let ((lang-check (lambda (f)
-				  (let ((f (intern (concat "org-babel-execute:" f))))
-				    (when (fboundp f) f)))))
-		(setq cmd
-		      (or (funcall lang-check lang)
-			  (funcall lang-check (symbol-name
-					       (cdr (assoc lang org-src-lang-modes))))
-			  (error "No org-babel-execute function for %s!" lang))))
-	      (if (and (not arg) new-hash (equal new-hash old-hash))
-		  (save-excursion ;; return cached result
-		    (goto-char (org-babel-where-is-src-block-result nil info))
-		    (end-of-line 1) (forward-char 1)
-		    (setq result (org-babel-read-result))
-		    (message (replace-regexp-in-string
-			      "%" "%%" (format "%S" result))) result)
-		(message "executing %s code block%s..."
-			 (capitalize lang)
-			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
-		(if (member "none" result-params)
-		    (progn
-		      (funcall cmd body params)
-		      (message "result silenced"))
-		(setq result
-		      ((lambda (result)
-			 (if (and (eq (cdr (assoc :result-type params)) 'value)
-				  (or (member "vector" result-params)
-				      (member "table" result-params))
-				  (not (listp result)))
-			     (list (list result)) result))
-		       (funcall cmd body params)))
-		;; if non-empty result and :file then write to :file
-		(when (cdr (assoc :file params))
-		  (when result
-		    (with-temp-file (cdr (assoc :file params))
-		      (insert
-		       (org-babel-format-result
-			result (cdr (assoc :sep (nth 2 info)))))))
-		  (setq result (cdr (assoc :file params))))
-		(org-babel-insert-result
-		 result result-params info new-hash indent lang)
-		(run-hooks 'org-babel-after-execute-hook)
-		result
-		)))
-	  (setq call-process-region 'org-babel-call-process-region-original))))))
-
-(defun org-babel-expand-body:generic (body params &optional var-lines)
-  "Expand BODY with PARAMS.
-Expand a block of code with org-babel according to its header
-arguments.  This generic implementation of body expansion is
-called for languages which have not defined their own specific
-org-babel-expand-body:lang function."
-  (mapconcat #'identity (append var-lines (list body)) "\n"))
-
-;;;###autoload
-(defun org-babel-expand-src-block (&optional arg info params)
-  "Expand the current source code block.
-Expand according to the source code block's header
-arguments and pop open the results in a preview buffer."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-	 (params (setf (nth 2 info)
-                       (sort (org-babel-merge-params (nth 2 info) params)
-                             (lambda (el1 el2) (string< (symbol-name (car el1))
-							(symbol-name (car el2)))))))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-			 (org-babel-expand-noweb-references info) (nth 1 info))))
-         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
-	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
-					  lang)))
-         (expanded
-	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
-	    (org-babel-expand-body:generic
-	     body params (and (fboundp assignments-cmd)
-			      (funcall assignments-cmd params))))))
-    (org-edit-src-code
-     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
-
-(defun org-babel-edit-distance (s1 s2)
-  "Return the edit (levenshtein) distance between strings S1 S2."
-  (let* ((l1 (length s1))
-	 (l2 (length s2))
-	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
-				(number-sequence 1 (1+ l1)))))
-	 (in (lambda (i j) (aref (aref dist i) j))))
-    (setf (aref (aref dist 0) 0) 0)
-    (dolist (j (number-sequence 1 l2))
-      (setf (aref (aref dist 0) j) j))
-    (dolist (i (number-sequence 1 l1))
-      (setf (aref (aref dist i) 0) i)
-      (dolist (j (number-sequence 1 l2))
-	(setf (aref (aref dist i) j)
-	      (min
-	       (1+ (funcall in (1- i) j))
-	       (1+ (funcall in i (1- j)))
-	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
-		  (funcall in (1- i) (1- j)))))))
-    (funcall in l1 l2)))
-
-(defun org-babel-combine-header-arg-lists (original &rest others)
-  "Combine a number of lists of header argument names and arguments."
-  (let ((results (copy-sequence original)))
-    (dolist (new-list others)
-      (dolist (arg-pair new-list)
-	(let ((header (car arg-pair))
-	      (args (cdr arg-pair)))
-	  (setq results
-		(cons arg-pair (org-remove-if
-				(lambda (pair) (equal header (car pair)))
-				results))))))
-    results))
-
-;;;###autoload
-(defun org-babel-check-src-block ()
-  "Check for misspelled header arguments in the current code block."
-  (interactive)
-  ;; TODO: report malformed code block
-  ;; TODO: report incompatible combinations of header arguments
-  ;; TODO: report uninitialized variables
-  (let ((too-close 2) ;; <- control closeness to report potential match
-	(names (mapcar #'symbol-name org-babel-header-arg-names)))
-    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
-			    (and (org-babel-where-is-src-block-head)
-				 (org-babel-parse-header-arguments
-				  (org-no-properties
-				   (match-string 4))))))
-      (dolist (name names)
-	(when (and (not (string= header name))
-		   (<= (org-babel-edit-distance header name) too-close)
-		   (not (member header names)))
-	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
-		 header name))))
-    (message "No suspicious header arguments found.")))
-
-;;;###autoload
-(defun org-babel-insert-header-arg ()
-  "Insert a header argument selecting from lists of common args and values."
-  (interactive)
-  (let* ((lang (car (org-babel-get-src-block-info 'light)))
-	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
-	 (headers (org-babel-combine-header-arg-lists
-		   org-babel-common-header-args-w-values
-		   (if (boundp lang-headers) (eval lang-headers) nil)))
-	 (arg (org-icompleting-read
-	       "Header Arg: "
-	       (mapcar
-		(lambda (header-spec) (symbol-name (car header-spec)))
-		headers))))
-    (insert ":" arg)
-    (let ((vals (cdr (assoc (intern arg) headers))))
-      (when vals
-	(insert
-	 " "
-	 (cond
-	  ((eq vals :any)
-	   (read-from-minibuffer "value: "))
-	  ((listp vals)
-	   (mapconcat
-	    (lambda (group)
-	      (let ((arg (org-icompleting-read
-			  "value: "
-			  (cons "default" (mapcar #'symbol-name group)))))
-		(if (and arg (not (string= "default" arg)))
-		    (concat arg " ")
-		  "")))
-	    vals ""))))))))
-
-;; Add support for completing-read insertion of header arguments after ":"
-(defun org-babel-header-arg-expand ()
-  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
-  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
-    (org-babel-enter-header-arg-w-completion (match-string 2))))
-
-(defun org-babel-enter-header-arg-w-completion (&optional lang)
-  "Insert header argument appropriate for LANG with completion."
-  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
-         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
-	 (headers-w-values (org-babel-combine-header-arg-lists
-			    org-babel-common-header-args-w-values lang-headers))
-         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
-         (header (org-completing-read "Header Arg: " headers))
-         (args (cdr (assoc (intern header) headers-w-values)))
-         (arg (when (and args (listp args))
-                (org-completing-read
-                 (format "%s: " header)
-                 (mapcar #'symbol-name (apply #'append args))))))
-    (insert (concat header " " (or arg "")))
-    (cons header arg)))
-
-(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
-
-;;;###autoload
-(defun org-babel-load-in-session (&optional arg info)
-  "Load the body of the current source-code block.
-Evaluate the header arguments for the source block before
-entering the session.  After loading the body this pops open the
-session."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (params (nth 2 info))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-                         (org-babel-expand-noweb-references info)
-		       (nth 1 info))))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (cmd (intern (concat "org-babel-load-session:" lang))))
-    (unless (fboundp cmd)
-      (error "No org-babel-load-session function for %s!" lang))
-    (pop-to-buffer (funcall cmd session body params))
-    (end-of-line 1)))
-
-;;;###autoload
-(defun org-babel-initiate-session (&optional arg info)
-  "Initiate session for current code block.
-If called with a prefix argument then resolve any variable
-references in the header arguments and assign these variables in
-the session.  Copy the body of the code block to the kill ring."
-  (interactive "P")
-  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-         (params (nth 2 info))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
-	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
-    (if (and (stringp session) (string= session "none"))
-	(error "This block is not using a session!"))
-    (unless (fboundp init-cmd)
-      (error "No org-babel-initiate-session function for %s!" lang))
-    (with-temp-buffer (insert (org-babel-trim body))
-                      (copy-region-as-kill (point-min) (point-max)))
-    (when arg
-      (unless (fboundp prep-cmd)
-	(error "No org-babel-prep-session function for %s!" lang))
-      (funcall prep-cmd session params))
-    (funcall init-cmd session params)))
-
-;;;###autoload
-(defun org-babel-switch-to-session (&optional arg info)
-  "Switch to the session of the current code block.
-Uses `org-babel-initiate-session' to start the session.  If called
-with a prefix argument then this is passed on to
-`org-babel-initiate-session'."
-  (interactive "P")
-  (pop-to-buffer (org-babel-initiate-session arg info))
-  (end-of-line 1))
-
-(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
-
-;;;###autoload
-(defun org-babel-switch-to-session-with-code (&optional arg info)
-  "Switch to code buffer and display session."
-  (interactive "P")
-  (let ((swap-windows
-	 (lambda ()
-	   (let ((other-window-buffer (window-buffer (next-window))))
-	     (set-window-buffer (next-window) (current-buffer))
-	     (set-window-buffer (selected-window) other-window-buffer))
-	   (other-window 1)))
-	(info (org-babel-get-src-block-info))
-	(org-src-window-setup 'reorganize-frame))
-    (save-excursion
-      (org-babel-switch-to-session arg info))
-    (org-edit-src-code)
-    (funcall swap-windows)))
-
-(defmacro org-babel-do-in-edit-buffer (&rest body)
-  "Evaluate BODY in edit buffer if there is a code block at point.
-Return t if a code block was found at point, nil otherwise."
-  `(let ((org-src-window-setup 'switch-invisibly))
-     (when (and (org-babel-where-is-src-block-head)
-		(org-edit-src-code nil nil nil))
-       (unwind-protect (progn ,@body)
-	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
-	     (org-edit-src-exit)))
-       t)))
-(def-edebug-spec org-babel-do-in-edit-buffer (body))
-
-(defun org-babel-do-key-sequence-in-edit-buffer (key)
-  "Read key sequence and execute the command in edit buffer.
-Enter a key sequence to be executed in the language major-mode
-edit buffer.  For example, TAB will alter the contents of the
-Org-mode code block according to the effect of TAB in the
-language major-mode buffer.  For languages that support
-interactive sessions, this can be used to send code from the Org
-buffer to the session for evaluation using the native major-mode
-evaluation mechanisms."
-  (interactive "kEnter key-sequence to execute in edit buffer: ")
-  (org-babel-do-in-edit-buffer
-   (call-interactively
-    (key-binding (or key (read-key-sequence nil))))))
-
-(defvar org-bracket-link-regexp)
-
-;;;###autoload
-(defun org-babel-open-src-block-result (&optional re-run)
-  "If `point' is on a src block then open the results of the
-source code block, otherwise return nil.  With optional prefix
-argument RE-RUN the source-code block is evaluated even if
-results already exist."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info)))
-    (when info
-      (save-excursion
-	;; go to the results, if there aren't any then run the block
-	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
-		       (progn (org-babel-execute-src-block)
-			      (org-babel-where-is-src-block-result))))
-	(end-of-line 1)
-	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
-	;; open the results
-	(if (looking-at org-bracket-link-regexp)
-	    ;; file results
-	    (org-open-at-point)
-	  (let ((r (org-babel-format-result
-		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
-	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
-	    (delete-region (point-min) (point-max))
-	    (insert r)))
-	t))))
-
-;;;###autoload
-(defmacro org-babel-map-src-blocks (file &rest body)
-  "Evaluate BODY forms on each source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer.  During evaluation of BODY the following local variables
-are set relative to the currently matched code block.
-
-full-block ------- string holding the entirety of the code block
-beg-block -------- point at the beginning of the code block
-end-block -------- point at the end of the matched code block
-lang ------------- string holding the language of the code block
-beg-lang --------- point at the beginning of the lang
-end-lang --------- point at the end of the lang
-switches --------- string holding the switches
-beg-switches ----- point at the beginning of the switches
-end-switches ----- point at the end of the switches
-header-args ------ string holding the header-args
-beg-header-args -- point at the beginning of the header-args
-end-header-args -- point at the end of the header-args
-body ------------- string holding the body of the code block
-beg-body --------- point at the beginning of the body
-end-body --------- point at the end of the body"
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-src-block-regexp nil t)
-	   (goto-char (match-beginning 0))
-	   (let ((full-block (match-string 0))
-		 (beg-block (match-beginning 0))
-		 (end-block (match-end 0))
-		 (lang (match-string 2))
-		 (beg-lang (match-beginning 2))
-		 (end-lang (match-end 2))
-		 (switches (match-string 3))
-		 (beg-switches (match-beginning 3))
-		 (end-switches (match-end 3))
-		 (header-args (match-string 4))
-		 (beg-header-args (match-beginning 4))
-		 (end-header-args (match-end 4))
-		 (body (match-string 5))
-		 (beg-body (match-beginning 5))
-		 (end-body (match-end 5)))
-	     ,@body
-	     (goto-char end-block))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-src-blocks (form body))
-
-;;;###autoload
-(defmacro org-babel-map-inline-src-blocks (file &rest body)
-  "Evaluate BODY forms on each inline source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-inline-src-blocks (form body))
-
-(defvar org-babel-lob-one-liner-regexp)
-
-;;;###autoload
-(defmacro org-babel-map-call-lines (file &rest body)
-  "Evaluate BODY forms on each call line in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-call-lines (form body))
-
-;;;###autoload
-(defmacro org-babel-map-executables (file &rest body)
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file"))
-	(rx (make-symbol "rx")))
-    `(let* ((,tempvar ,file)
-	    (,rx (concat "\\(" org-babel-src-block-regexp
-			 "\\|" org-babel-inline-src-block-regexp
-			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward ,rx nil t)
-	   (goto-char (match-beginning 1))
-	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-executables (form body))
-
-;;;###autoload
-(defun org-babel-execute-buffer (&optional arg)
-  "Execute source code blocks in a buffer.
-Call `org-babel-execute-src-block' on every source block in
-the current buffer."
-  (interactive "P")
-  (org-babel-eval-wipe-error-buffer)
-  (org-save-outline-visibility t
-    (org-babel-map-executables nil
-      (if (looking-at org-babel-lob-one-liner-regexp)
-          (org-babel-lob-execute-maybe)
-        (org-babel-execute-src-block arg)))))
-
-;;;###autoload
-(defun org-babel-execute-subtree (&optional arg)
-  "Execute source code blocks in a subtree.
-Call `org-babel-execute-src-block' on every source block in
-the current subtree."
-  (interactive "P")
-  (save-restriction
-    (save-excursion
-      (org-narrow-to-subtree)
-      (org-babel-execute-buffer arg)
-      (widen))))
-
-;;;###autoload
-(defun org-babel-sha1-hash (&optional info)
-  "Generate an sha1 hash based on the value of info."
-  (interactive)
-  (let ((print-level nil)
-	(info (or info (org-babel-get-src-block-info))))
-    (setf (nth 2 info)
-	  (sort (copy-sequence (nth 2 info))
-		(lambda (a b) (string< (car a) (car b)))))
-    (let* ((rm (lambda (lst)
-		 (dolist (p '("replace" "silent" "none"
-			      "append" "prepend"))
-		   (setq lst (remove p lst)))
-		 lst))
-	   (norm (lambda (arg)
-		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
-				(copy-sequence (cdr arg))
-			      (cdr arg))))
-		     (when (and v (not (and (sequencep v)
-					    (not (consp v))
-					    (= (length v) 0))))
-		       (cond
-			((and (listp v) ; lists are sorted
-			      (member (car arg) '(:result-params)))
-			 (sort (funcall rm v) #'string<))
-			((and (stringp v) ; strings are sorted
-			      (member (car arg) '(:results :exports)))
-			 (mapconcat #'identity (sort (funcall rm (split-string v))
-						     #'string<) " "))
-			(t v)))))))
-      ((lambda (hash)
-	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
-       (let ((it (format "%s-%s"
-			 (mapconcat
-			  #'identity
-			  (delq nil (mapcar (lambda (arg)
-					      (let ((normalized (funcall norm arg)))
-						(when normalized
-						  (format "%S" normalized))))
-					    (nth 2 info))) ":")
-			 (nth 1 info))))
-	 (sha1 it))))))
-
-(defun org-babel-current-result-hash ()
-  "Return the current in-buffer hash."
-  (org-babel-where-is-src-block-result)
-  (org-no-properties (match-string 3)))
-
-(defun org-babel-set-current-result-hash (hash)
-  "Set the current in-buffer hash to HASH."
-  (org-babel-where-is-src-block-result)
-  (save-excursion (goto-char (match-beginning 3))
-		  ;; (mapc #'delete-overlay (overlays-at (point)))
-		  (replace-match hash nil nil nil 3)
-		  (org-babel-hide-hash)))
-
-(defun org-babel-hide-hash ()
-  "Hide the hash in the current results line.
-Only the initial `org-babel-hash-show' characters of the hash
-will remain visible."
-  (add-to-invisibility-spec '(org-babel-hide-hash . t))
-  (save-excursion
-    (when (and (re-search-forward org-babel-result-regexp nil t)
-               (match-string 3))
-      (let* ((start (match-beginning 3))
-             (hide-start (+ org-babel-hash-show start))
-             (end (match-end 3))
-             (hash (match-string 3))
-             ov1 ov2)
-        (setq ov1 (make-overlay start hide-start))
-        (setq ov2 (make-overlay hide-start end))
-        (overlay-put ov2 'invisible 'org-babel-hide-hash)
-        (overlay-put ov1 'babel-hash hash)))))
-
-(defun org-babel-hide-all-hashes ()
-  "Hide the hash in the current buffer.
-Only the initial `org-babel-hash-show' characters of each hash
-will remain visible.  This function should be called as part of
-the `org-mode-hook'."
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (goto-char (match-beginning 0))
-      (org-babel-hide-hash)
-      (goto-char (match-end 0)))))
-(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
-
-(defun org-babel-hash-at-point (&optional point)
-  "Return the value of the hash at POINT.
-The hash is also added as the last element of the kill ring.
-This can be called with C-c C-c."
-  (interactive)
-  (let ((hash (car (delq nil (mapcar
-			      (lambda (ol) (overlay-get ol 'babel-hash))
-                              (overlays-at (or point (point))))))))
-    (when hash (kill-new hash) (message hash))))
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
-
-(defun org-babel-result-hide-spec ()
-  "Hide portions of results lines.
-Add `org-babel-hide-result' as an invisibility spec for hiding
-portions of results lines."
-  (add-to-invisibility-spec '(org-babel-hide-result . t)))
-(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
-
-(defvar org-babel-hide-result-overlays nil
-  "Overlays hiding results.")
-
-(defun org-babel-result-hide-all ()
-  "Fold all results in the current buffer."
-  (interactive)
-  (org-babel-show-result-all)
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (save-excursion (goto-char (match-beginning 0))
-                      (org-babel-hide-result-toggle-maybe)))))
-
-(defun org-babel-show-result-all ()
-  "Unfold all results in the current buffer."
-  (mapc 'delete-overlay org-babel-hide-result-overlays)
-  (setq org-babel-hide-result-overlays nil))
-
-;;;###autoload
-(defun org-babel-hide-result-toggle-maybe ()
-  "Toggle visibility of result at point."
-  (interactive)
-  (let ((case-fold-search t))
-    (if (save-excursion
-          (beginning-of-line 1)
-          (looking-at org-babel-result-regexp))
-        (progn (org-babel-hide-result-toggle)
-               t) ;; to signal that we took action
-      nil))) ;; to signal that we did not
-
-(defun org-babel-hide-result-toggle (&optional force)
-  "Toggle the visibility of the current result."
-  (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (if (re-search-forward org-babel-result-regexp nil t)
-        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
-	      (end (progn
-		     (while (looking-at org-babel-multi-line-header-regexp)
-		       (forward-line 1))
-		     (goto-char (- (org-babel-result-end) 1)) (point)))
-	      ov)
-          (if (memq t (mapcar (lambda (overlay)
-                                (eq (overlay-get overlay 'invisible)
-				    'org-babel-hide-result))
-                              (overlays-at start)))
-              (if (or (not force) (eq force 'off))
-                  (mapc (lambda (ov)
-                          (when (member ov org-babel-hide-result-overlays)
-                            (setq org-babel-hide-result-overlays
-                                  (delq ov org-babel-hide-result-overlays)))
-                          (when (eq (overlay-get ov 'invisible)
-                                    'org-babel-hide-result)
-                            (delete-overlay ov)))
-                        (overlays-at start)))
-            (setq ov (make-overlay start end))
-            (overlay-put ov 'invisible 'org-babel-hide-result)
-            ;; make the block accessible to isearch
-            (overlay-put
-             ov 'isearch-open-invisible
-             (lambda (ov)
-               (when (member ov org-babel-hide-result-overlays)
-                 (setq org-babel-hide-result-overlays
-                       (delq ov org-babel-hide-result-overlays)))
-               (when (eq (overlay-get ov 'invisible)
-                         'org-babel-hide-result)
-                 (delete-overlay ov))))
-            (push ov org-babel-hide-result-overlays)))
-      (error "Not looking at a result line"))))
-
-;; org-tab-after-check-for-cycling-hook
-(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
-;; Remove overlays when changing major mode
-(add-hook 'org-mode-hook
-	  (lambda () (org-add-hook 'change-major-mode-hook
-				   'org-babel-show-result-all 'append 'local)))
-
-(defvar org-file-properties)
-(defun org-babel-params-from-properties (&optional lang)
-  "Retrieve parameters specified as properties.
-Return an association list of any source block params which
-may be specified in the properties of the current outline entry."
-  (save-match-data
-    (let (val sym)
-      (org-babel-parse-multiple-vars
-       (delq nil
-	     (mapcar
-	      (lambda (header-arg)
-		(and (setq val (org-entry-get (point) header-arg t))
-		     (cons (intern (concat ":" header-arg))
-			   (org-babel-read val))))
-	      (mapcar
-	       #'symbol-name
-	       (mapcar
-		#'car
-		(org-babel-combine-header-arg-lists
-		 org-babel-common-header-args-w-values
-		 (progn
-		   (setq sym (intern (concat "org-babel-header-args:" lang)))
-		   (and (boundp sym) (eval sym))))))))))))
-
-(defvar org-src-preserve-indentation)
-(defun org-babel-parse-src-block-match ()
-  "Parse the results from a match of the `org-babel-src-block-regexp'."
-  (let* ((block-indentation (length (match-string 1)))
-	 (lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
-	 (switches (match-string 3))
-         (body (org-no-properties
-		(let* ((body (match-string 5))
-		       (sub-length (- (length body) 1)))
-		  (if (and (> sub-length 0)
-			   (string= "\n" (substring body sub-length)))
-		      (substring body 0 sub-length)
-		    (or body "")))))
-	 (preserve-indentation (or org-src-preserve-indentation
-				   (save-match-data
-				     (string-match "-i\\>" switches)))))
-    (list lang
-          ;; get block body less properties, protective commas, and indentation
-          (with-temp-buffer
-            (save-match-data
-              (insert (org-unescape-code-in-string body))
-	      (unless preserve-indentation (org-do-remove-indentation))
-              (buffer-string)))
-	  (org-babel-merge-params
-	   org-babel-default-header-args
-           (org-babel-params-from-properties lang)
-	   (if (boundp lang-headers) (eval lang-headers) nil)
-	   (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) ""))))
-	  switches
-	  block-indentation)))
-
-(defun org-babel-parse-inline-src-block-match ()
-  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
-  (let* ((lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
-    (list lang
-          (org-unescape-code-in-string (org-no-properties (match-string 5)))
-          (org-babel-merge-params
-           org-babel-default-inline-header-args
-           (org-babel-params-from-properties lang)
-           (if (boundp lang-headers) (eval lang-headers) nil)
-           (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) "")))))))
-
-(defun org-babel-balanced-split (string alts)
-  "Split STRING on instances of ALTS.
-ALTS is a cons of two character options where each option may be
-either the numeric code of a single character or a list of
-character alternatives.  For example to split on balanced
-instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
-  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
-	 (matched (lambda (ch last)
-		    (if (consp alts)
-			(and (funcall matches ch (cdr alts))
-			     (funcall matches last (car alts)))
-		      (funcall matches ch alts))))
-	 (balance 0) (last 0)
-	 quote partial lst)
-    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
-	    (setq balance (+ balance
-			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
-				   ((or (equal 93 ch) (equal 41 ch)) -1)
-				   (t 0))))
-	    (when (and (equal 34 ch) (not (equal 92 last)))
-	      (setq quote (not quote)))
-	    (setq partial (cons ch partial))
-	    (when (and (= balance 0) (not quote) (funcall matched ch last))
-	      (setq lst (cons (apply #'string (nreverse
-					       (if (consp alts)
-						   (cddr partial)
-						 (cdr partial))))
-			      lst))
-	      (setq partial nil))
-	    (setq last ch))
-	  (string-to-list string))
-    (nreverse (cons (apply #'string (nreverse partial)) lst))))
-
-(defun org-babel-join-splits-near-ch (ch list)
-  "Join splits where \"=\" is on either end of the split."
-  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
-	(first= (lambda (str) (= ch (aref str 0)))))
-    (reverse
-     (org-reduce (lambda (acc el)
-		   (let ((head (car acc)))
-		     (if (and head (or (funcall last= head) (funcall first= el)))
-			 (cons (concat head el) (cdr acc))
-		       (cons el acc))))
-		 list :initial-value nil))))
-
-(defun org-babel-parse-header-arguments (arg-string)
-  "Parse a string of header arguments returning an alist."
-  (when (> (length arg-string) 0)
-    (org-babel-parse-multiple-vars
-     (delq nil
-	   (mapcar
-	    (lambda (arg)
-	      (if (string-match
-		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
-		   arg)
-		  (cons (intern (match-string 1 arg))
-			(org-babel-read (org-babel-chomp (match-string 2 arg))))
-		(cons (intern (org-babel-chomp arg)) nil)))
-	    ((lambda (raw)
-	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
-	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
-
-(defun org-babel-parse-multiple-vars (header-arguments)
-  "Expand multiple variable assignments behind a single :var keyword.
-
-This allows expression of multiple variables with one :var as
-shown below.
-
-#+PROPERTY: var foo=1, bar=2"
-  (let (results)
-    (mapc (lambda (pair)
-	    (if (eq (car pair) :var)
-		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
-			(org-babel-join-splits-near-ch
-			 61 (org-babel-balanced-split (cdr pair) 32)))
-	      (push pair results)))
-	  header-arguments)
-    (nreverse results)))
-
-(defun org-babel-process-params (params)
-  "Expand variables in PARAMS and add summary parameters."
-  (let* ((processed-vars (mapcar (lambda (el)
-				   (if (consp (cdr el))
-				       (cdr el)
-				     (org-babel-ref-parse (cdr el))))
-				 (org-babel-get-header params :var)))
-	 (vars-and-names (if (and (assoc :colname-names params)
-				  (assoc :rowname-names params))
-			     (list processed-vars)
-			   (org-babel-disassemble-tables
-			    processed-vars
-			    (cdr (assoc :hlines params))
-			    (cdr (assoc :colnames params))
-			    (cdr (assoc :rownames params)))))
-	 (raw-result (or (cdr (assoc :results params)) ""))
-	 (result-params (append
-			 (split-string (if (stringp raw-result)
-					   raw-result
-					 (eval raw-result)))
-			 (cdr (assoc :result-params params)))))
-    (append
-     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
-     (list
-      (cons :colname-names (or (cdr (assoc :colname-names params))
-			       (cadr  vars-and-names)))
-      (cons :rowname-names (or (cdr (assoc :rowname-names params))
-			       (caddr vars-and-names)))
-      (cons :result-params result-params)
-      (cons :result-type  (cond ((member "output" result-params) 'output)
-				((member "value" result-params) 'value)
-				(t 'value))))
-     (org-babel-get-header params :var 'other))))
-
-;; row and column names
-(defun org-babel-del-hlines (table)
-  "Remove all 'hlines from TABLE."
-  (remove 'hline table))
-
-(defun org-babel-get-colnames (table)
-  "Return the column names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names."
-  (if (equal 'hline (nth 1 table))
-      (cons (cddr table) (car table))
-    (cons (cdr table) (car table))))
-
-(defun org-babel-get-rownames (table)
-  "Return the row names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names.  Note: this function removes any hlines in TABLE."
-  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
-	 (width (apply 'max
-		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
-	 (table (funcall trans (mapcar (lambda (row)
-					 (if (not (equal row 'hline))
-					     row
-					   (setq row '())
-					   (dotimes (n width)
-					     (setq row (cons 'hline row)))
-					   row))
-				       table))))
-    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
-		  (funcall trans (cdr table)))
-	  (remove 'hline (car table)))))
-
-(defun org-babel-put-colnames (table colnames)
-  "Add COLNAMES to TABLE if they exist."
-  (if colnames (apply 'list colnames 'hline table) table))
-
-(defun org-babel-put-rownames (table rownames)
-  "Add ROWNAMES to TABLE if they exist."
-  (if rownames
-      (mapcar (lambda (row)
-                (if (listp row)
-                    (cons (or (pop rownames) "") row)
-                  row)) table)
-    table))
-
-(defun org-babel-pick-name (names selector)
-  "Select one out of an alist of row or column names.
-SELECTOR can be either a list of names in which case those names
-will be returned directly, or an index into the list NAMES in
-which case the indexed names will be return."
-  (if (listp selector)
-      selector
-    (when names
-      (if (and selector (symbolp selector) (not (equal t selector)))
-	  (cdr (assoc selector names))
-	(if (integerp selector)
-	    (nth (- selector 1) names)
-	  (cdr (car (last names))))))))
-
-(defun org-babel-disassemble-tables (vars hlines colnames rownames)
-  "Parse tables for further processing.
-Process the variables in VARS according to the HLINES,
-ROWNAMES and COLNAMES header arguments.  Return a list consisting
-of the vars, cnames and rnames."
-  (let (cnames rnames)
-    (list
-     (mapcar
-      (lambda (var)
-        (when (listp (cdr var))
-          (when (and (not (equal colnames "no"))
-                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
-                                       (not (member 'hline (cddr (cdr var)))))))
-            (let ((both (org-babel-get-colnames (cdr var))))
-              (setq cnames (cons (cons (car var) (cdr both))
-                                 cnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and rownames (not (equal rownames "no")))
-            (let ((both (org-babel-get-rownames (cdr var))))
-              (setq rnames (cons (cons (car var) (cdr both))
-                                 rnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and hlines (not (equal hlines "yes")))
-            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
-        var)
-      vars)
-     (reverse cnames) (reverse rnames))))
-
-(defun org-babel-reassemble-table (table colnames rownames)
-  "Add column and row names to a table.
-Given a TABLE and set of COLNAMES and ROWNAMES add the names
-to the table for reinsertion to org-mode."
-  (if (listp table)
-      ((lambda (table)
-         (if (and colnames (listp (car table)) (= (length (car table))
-                                                  (length colnames)))
-             (org-babel-put-colnames table colnames) table))
-       (if (and rownames (= (length table) (length rownames)))
-           (org-babel-put-rownames table rownames) table))
-    table))
-
-(defun org-babel-where-is-src-block-head ()
-  "Find where the current source block begins.
-Return the point at the beginning of the current source
-block.  Specifically at the beginning of the #+BEGIN_SRC line.
-If the point is not on a source block then return nil."
-  (let ((initial (point)) (case-fold-search t) top bottom)
-    (or
-     (save-excursion ;; on a source name line or a #+header line
-       (beginning-of-line 1)
-       (and (or (looking-at org-babel-src-name-regexp)
-		(looking-at org-babel-multi-line-header-regexp))
-	    (progn
-	      (while (and (forward-line 1)
-			  (or (looking-at org-babel-src-name-regexp)
-			      (looking-at org-babel-multi-line-header-regexp))))
-	      (looking-at org-babel-src-block-regexp))
-            (point)))
-     (save-excursion ;; on a #+begin_src line
-       (beginning-of-line 1)
-       (and (looking-at org-babel-src-block-regexp)
-            (point)))
-     (save-excursion ;; inside a src block
-       (and
-        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
-        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
-        (< top initial) (< initial bottom)
-        (progn (goto-char top) (beginning-of-line 1)
-	       (looking-at org-babel-src-block-regexp))
-        (point))))))
-
-;;;###autoload
-(defun org-babel-goto-src-block-head ()
-  "Go to the beginning of the current code block."
-  (interactive)
-  ((lambda (head)
-     (if head (goto-char head) (error "Not currently in a code block")))
-   (org-babel-where-is-src-block-head)))
-
-;;;###autoload
-(defun org-babel-goto-named-src-block (name)
-  "Go to a named source-code block."
-  (interactive
-   (let ((completion-ignore-case t)
-	 (case-fold-search t)
-	 (under-point (thing-at-point 'line)))
-     (list (org-icompleting-read
-	    "source-block name: " (org-babel-src-block-names) nil t
-	    (cond
-	     ;; noweb
-	     ((string-match (org-babel-noweb-wrap) under-point)
-	      (let ((block-name (match-string 1 under-point)))
-		(string-match "[^(]*" block-name)
-		(match-string 0 block-name)))
-	     ;; #+call:
-	     ((string-match org-babel-lob-one-liner-regexp under-point)
-	      (let ((source-info (car (org-babel-lob-get-info))))
-		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
-		    (let ((source-name (match-string 1 source-info)))
-		      source-name))))
-	     ;; #+results:
-	     ((string-match (concat "#\\+" org-babel-results-keyword
-				    "\\:\s+\\([^\\(]*\\)") under-point)
-	      (match-string 1 under-point))
-	     ;; symbol-at-point
-	     ((and (thing-at-point 'symbol))
-	      (org-babel-find-named-block (thing-at-point 'symbol))
-	      (thing-at-point 'symbol))
-	     (""))))))
-  (let ((point (org-babel-find-named-block name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
-      (message "source-code block '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-block (name)
-  "Find a named source-code block.
-Return the location of the source block identified by source
-NAME, or nil if no such block exists.  Set match data according to
-org-babel-named-src-block-regexp."
-  (save-excursion
-    (let ((case-fold-search t)
-	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
-      (goto-char (point-min))
-      (when (or (re-search-forward regexp nil t)
-		(re-search-backward regexp nil t))
-        (match-beginning 0)))))
-
-(defun org-babel-src-block-names (&optional file)
-  "Returns the names of source blocks in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
-	(setq names (cons (match-string 3) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-goto-named-result (name)
-  "Go to a named result."
-  (interactive
-   (let ((completion-ignore-case t))
-     (list (org-icompleting-read "source-block name: "
-				 (org-babel-result-names) nil t))))
-  (let ((point (org-babel-find-named-result name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (goto-char point) (org-show-context))
-      (message "result '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-result (name &optional point)
-  "Find a named result.
-Return the location of the result named NAME in the current
-buffer or nil if no such result exists."
-  (save-excursion
-    (let ((case-fold-search t))
-      (goto-char (or point (point-min)))
-      (catch 'is-a-code-block
-	(when (re-search-forward
-	       (concat org-babel-result-regexp
-		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
-	  (when (and (string= "name" (downcase (match-string 1)))
-		     (or (beginning-of-line 1)
-			 (looking-at org-babel-src-block-regexp)
-			 (looking-at org-babel-multi-line-header-regexp)))
-	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
-	  (beginning-of-line 0) (point))))))
-
-(defun org-babel-result-names (&optional file)
-  "Returns the names of results in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-result-w-name-regexp nil t)
-	(setq names (cons (match-string 4) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-next-src-block (&optional arg)
-  "Jump to the next source block.
-With optional prefix argument ARG, jump forward ARG many source blocks."
-  (interactive "P")
-  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
-  (condition-case nil
-      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No further code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-;;;###autoload
-(defun org-babel-previous-src-block (&optional arg)
-  "Jump to the previous source block.
-With optional prefix argument ARG, jump backward ARG many source blocks."
-  (interactive "P")
-  (condition-case nil
-      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No previous code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-(defvar org-babel-load-languages)
-
-;;;###autoload
-(defun org-babel-mark-block ()
-  "Mark current src block."
-  (interactive)
-  ((lambda (head)
-     (when head
-       (save-excursion
-	 (goto-char head)
-	 (looking-at org-babel-src-block-regexp))
-       (push-mark (match-end 5) nil t)
-       (goto-char (match-beginning 5))))
-   (org-babel-where-is-src-block-head)))
-
-(defun org-babel-demarcate-block (&optional arg)
-  "Wrap or split the code in the region or on the point.
-When called from inside of a code block the current block is
-split.  When called from outside of a code block a new code block
-is created.  In both cases if the region is demarcated and if the
-region is not active then the point is demarcated."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info 'light))
-	(headers (progn (org-babel-where-is-src-block-head)
-			(match-string 4)))
-	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
-    (if info
-        (mapc
-         (lambda (place)
-           (save-excursion
-             (goto-char place)
-             (let ((lang (nth 0 info))
-                   (indent (make-string (nth 5 info) ? )))
-	       (when (string-match "^[[:space:]]*$"
-				   (buffer-substring (point-at-bol)
-						     (point-at-eol)))
-		 (delete-region (point-at-bol) (point-at-eol)))
-               (insert (concat
-			(if (looking-at "^") "" "\n")
-			indent "#+end_src\n"
-			(if arg stars indent) "\n"
-			indent "#+begin_src " lang
-			(if (> (length headers) 1)
-			    (concat " " headers) headers)
-			(if (looking-at "[\n\r]")
-			    ""
-			  (concat "\n" (make-string (current-column) ? )))))))
-	   (move-end-of-line 2))
-         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
-      (let ((start (point))
-	    (lang (org-icompleting-read "Lang: "
-					(mapcar (lambda (el) (symbol-name (car el)))
-						org-babel-load-languages)))
-	    (body (delete-and-extract-region
-		   (if (org-region-active-p) (mark) (point)) (point))))
-	(insert (concat (if (looking-at "^") "" "\n")
-			(if arg (concat stars "\n") "")
-			"#+begin_src " lang "\n"
-			body
-			(if (or (= (length body) 0)
-				(string-match "[\r\n]$" body)) "" "\n")
-			"#+end_src\n"))
-	(goto-char start) (move-end-of-line 1)))))
-
-(defvar org-babel-lob-one-liner-regexp)
-(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
-  "Find where the current source block results begin.
-Return the point at the beginning of the result of the current
-source block.  Specifically at the beginning of the results line.
-If no result exists for this block then create a results line
-following the source block."
-  (save-excursion
-    (let* ((case-fold-search t)
-	   (on-lob-line (save-excursion
-			  (beginning-of-line 1)
-			  (looking-at org-babel-lob-one-liner-regexp)))
-	   (inlinep (when (org-babel-get-inline-src-block-matches)
-		      (match-end 0)))
-	   (name (if on-lob-line
-		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
-		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
-	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
-	   found beg end)
-      (when head (goto-char head))
-      (org-with-wide-buffer
-       (setq
-	found ;; was there a result (before we potentially insert one)
-	(or
-	 inlinep
-	 (and
-	  ;; named results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it does not need to be rebuilt, then don't set end
-	  ;; - if it does need to be rebuilt then do set end
-	  name (setq beg (org-babel-find-named-result name))
-	  (prog1 beg
-	    (when (and hash (not (string= hash (match-string 3))))
-	      (goto-char beg) (setq end beg) ;; beginning of result
-	      (forward-line 1)
-	      (delete-region end (org-babel-result-end)) nil)))
-	 (and
-	  ;; unnamed results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it is found, and the hash doesn't match, delete and set end
-	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
-	  (progn (end-of-line 1)
-		 (if (eobp) (insert "\n") (forward-char 1))
-		 (setq end (point))
-		 (or (and (not name)
-			  (progn ;; unnamed results line already exists
-			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
-			    (beginning-of-line 1)
-			    (looking-at
-			     (concat org-babel-result-regexp "\n")))
-			  (prog1 (point)
-			    ;; must remove and rebuild if hash!=old-hash
-			    (if (and hash (not (string= hash (match-string 3))))
-				(prog1 nil
-				  (forward-line 1)
-				  (delete-region
-				   end (org-babel-result-end)))
-			      (setq end nil))))))))))
-      (if (not (and insert end)) found
-	(goto-char end)
-	(unless beg
-	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
-	(insert (concat
-		 (when (wholenump indent) (make-string indent ? ))
-		 "#+" org-babel-results-keyword
-		 (when hash (concat "["hash"]"))
-		 ":"
-		 (when name (concat " " name)) "\n"))
-	(unless beg (insert "\n") (backward-char))
-	(beginning-of-line 0)
-	(if hash (org-babel-hide-hash))
-	(point)))))
-
-(defvar org-block-regexp)
-(defun org-babel-read-result ()
-  "Read the result at `point' into emacs-lisp."
-  (let ((case-fold-search t) result-string)
-    (cond
-     ((org-at-table-p) (org-babel-read-table))
-     ((org-at-item-p) (org-babel-read-list))
-     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
-     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
-     ((looking-at "^[ \t]*: ")
-      (setq result-string
-	    (org-babel-trim
-	     (mapconcat (lambda (line)
-                          (if (and (> (length line) 1)
-                                   (string-match "^[ \t]*: \\(.+\\)" line))
-                              (match-string 1 line)
-                            line))
-			(split-string
-			 (buffer-substring
-                          (point) (org-babel-result-end)) "[\r\n]+")
-			"\n")))
-      (or (org-babel-number-p result-string) result-string))
-     ((looking-at org-babel-result-regexp)
-      (save-excursion (forward-line 1) (org-babel-read-result))))))
-
-(defun org-babel-read-table ()
-  "Read the table at `point' into emacs-lisp."
-  (mapcar (lambda (row)
-            (if (and (symbolp row) (equal row 'hline)) row
-              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
-          (org-table-to-lisp)))
-
-(defun org-babel-read-list ()
-  "Read the list at `point' into emacs-lisp."
-  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
-	  (mapcar #'cadr (cdr (org-list-parse-list)))))
-
-(defvar org-link-types-re)
-(defun org-babel-read-link ()
-  "Read the link at `point' into emacs-lisp.
-If the path of the link is a file path it is expanded using
-`expand-file-name'."
-  (let* ((case-fold-search t)
-         (raw (and (looking-at org-bracket-link-regexp)
-                   (org-no-properties (match-string 1))))
-         (type (and (string-match org-link-types-re raw)
-                    (match-string 1 raw))))
-    (cond
-     ((not type) (expand-file-name raw))
-     ((string= type "file")
-      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
-           (expand-file-name (match-string 2 raw))))
-     (t raw))))
-
-(defun org-babel-format-result (result &optional sep)
-  "Format RESULT for writing to file."
-  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
-    (if (listp result)
-	;; table result
-	(orgtbl-to-generic
-	 result (list :sep (or sep "\t") :fmt echo-res))
-      ;; scalar result
-      (funcall echo-res result))))
-
-(defun org-babel-insert-result
-  (result &optional result-params info hash indent lang)
-  "Insert RESULT into the current buffer.
-By default RESULT is inserted after the end of the
-current source block.  With optional argument RESULT-PARAMS
-controls insertion of results in the org-mode file.
-RESULT-PARAMS can take the following values:
-
-replace - (default option) insert results after the source block
-          replacing any previously inserted results
-
-silent -- no results are inserted into the Org-mode buffer but
-          the results are echoed to the minibuffer and are
-          ingested by Emacs (a potentially time consuming
-          process)
-
-file ---- the results are interpreted as a file path, and are
-          inserted into the buffer using the Org-mode file syntax
-
-list ---- the results are interpreted as an Org-mode list.
-
-raw ----- results are added directly to the Org-mode file.  This
-          is a good option if you code block will output org-mode
-          formatted text.
-
-drawer -- results are added directly to the Org-mode file as with
-          \"raw\", but are wrapped in a RESULTS drawer, allowing
-          them to later be replaced or removed automatically.
-
-org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
-          They are not comma-escaped when inserted, but Org syntax
-          here will be discarded when exporting the file.
-
-html ---- results are added inside of a #+BEGIN_HTML block.  This
-          is a good option if you code block will output html
-          formatted text.
-
-latex --- results are added inside of a #+BEGIN_LATEX block.
-          This is a good option if you code block will output
-          latex formatted text.
-
-code ---- the results are extracted in the syntax of the source
-          code of the language being evaluated and are added
-          inside of a #+BEGIN_SRC block with the source-code
-          language set appropriately.  Note this relies on the
-          optional LANG argument."
-  (if (stringp result)
-      (progn
-        (setq result (org-no-properties result))
-        (when (member "file" result-params)
-	  (setq result (org-babel-result-to-file
-			result (when (assoc :file-desc (nth 2 info))
-				 (or (cdr (assoc :file-desc (nth 2 info)))
-				     result))))))
-    (unless (listp result) (setq result (format "%S" result))))
-  (if (and result-params (member "silent" result-params))
-      (progn
-	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
-	result)
-    (save-excursion
-      (let* ((inlinep
-	      (save-excursion
-		(when (or (org-babel-get-inline-src-block-matches)
-			  (org-babel-get-lob-one-liner-matches))
-		  (goto-char (match-end 0))
-		  (insert (if (listp result) "\n" " "))
-		  (point))))
-	     (existing-result (unless inlinep
-				(org-babel-where-is-src-block-result
-				 t info hash indent)))
-	     (results-switches
-	      (cdr (assoc :results_switches (nth 2 info))))
-	     (visible-beg (copy-marker (point-min)))
-	     (visible-end (copy-marker (point-max)))
-	     ;; When results exist outside of the current visible
-	     ;; region of the buffer, be sure to widen buffer to
-	     ;; update them.
-	     (outside-scope-p (and existing-result
-				   (or (> visible-beg existing-result)
-				       (<= visible-end existing-result))))
-	     beg end)
-	(when (and (stringp result)  ; ensure results end in a newline
-		   (not inlinep)
-		   (> (length result) 0)
-		   (not (or (string-equal (substring result -1) "\n")
-			    (string-equal (substring result -1) "\r"))))
-	  (setq result (concat result "\n")))
-	(unwind-protect
-	    (progn
-	      (when outside-scope-p (widen))
-	      (if (not existing-result)
-		  (setq beg (or inlinep (point)))
-		(goto-char existing-result)
-		(save-excursion
-		  (re-search-forward "#" nil t)
-		  (setq indent (- (current-column) 1)))
-		(forward-line 1)
-		(setq beg (point))
-		(cond
-		 ((member "replace" result-params)
-		  (delete-region (point) (org-babel-result-end)))
-		 ((member "append" result-params)
-		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
-		 ((member "prepend" result-params)))) ; already there
-	      (setq results-switches
-		    (if results-switches (concat " " results-switches) ""))
-	      (let ((wrap (lambda (start finish &optional no-escape)
-			    (goto-char end) (insert (concat finish "\n"))
-			    (goto-char beg) (insert (concat start "\n"))
-			    (unless no-escape
-			      (org-escape-code-in-region (point) end))
-			    (goto-char end) (goto-char (point-at-eol))
-			    (setq end (point-marker))))
-		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
-		;; insert results based on type
-		(cond
-		 ;; do nothing for an empty result
-		 ((null result))
-		 ;; insert a list if preferred
-		 ((member "list" result-params)
-		  (insert
-		   (org-babel-trim
-		    (org-list-to-generic
-		     (cons 'unordered
-			   (mapcar
-			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
-			    (if (listp result) result (list result))))
-		     '(:splicep nil :istart "- " :iend "\n")))
-		   "\n"))
-		 ;; assume the result is a table if it's not a string
-		 ((funcall proper-list-p result)
-		  (goto-char beg)
-		  (insert (concat (orgtbl-to-orgtbl
-				   (if (or (eq 'hline (car result))
-					   (and (listp (car result))
-						(listp (cdr (car result)))))
-				       result (list result))
-				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
-		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
-		 ((and (listp result) (not (funcall proper-list-p result)))
-		  (insert (format "%s\n" result)))
-		 ((member "file" result-params)
-		  (when inlinep (goto-char inlinep))
-		  (insert result))
-		 (t (goto-char beg) (insert result)))
-		(when (funcall proper-list-p result) (goto-char (org-table-end)))
-		(setq end (point-marker))
-		;; possibly wrap result
-		(cond
-		 ((assoc :wrap (nth 2 info))
-		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
-		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
-		 ((member "html" result-params)
-		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
-		 ((member "latex" result-params)
-		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
-		 ((member "org" result-params)
-		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
-		 ((member "code" result-params)
-		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
-			   "#+END_SRC"))
-		 ((member "raw" result-params)
-		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
-		 ((or (member "drawer" result-params)
-		      ;; Stay backward compatible with <7.9.2
-		      (member "wrap" result-params))
-		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
-		 ((and (not (funcall proper-list-p result))
-		       (not (member "file" result-params)))
-		  (org-babel-examplize-region beg end results-switches)
-		  (setq end (point)))))
-	      ;; possibly indent the results to match the #+results line
-	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
-			 ;; in this case `table-align' does the work for us
-			 (not (and (listp result)
-				   (member "append" result-params))))
-		(indent-rigidly beg end indent))
-	      (if (null result)
-		  (if (member "value" result-params)
-		      (message "Code block returned no value.")
-		    (message "Code block produced no output."))
-		(message "Code block evaluation complete.")))
-	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
-	  (set-marker visible-beg nil)
-	  (set-marker visible-end nil))))))
-
-(defun org-babel-remove-result (&optional info)
-  "Remove the result of the current source block."
-  (interactive)
-  (let ((location (org-babel-where-is-src-block-result nil info)) start)
-    (when location
-      (setq start (- location 1))
-      (save-excursion
-        (goto-char location) (forward-line 1)
-        (delete-region start (org-babel-result-end))))))
-
-(defun org-babel-result-end ()
-  "Return the point at the end of the current set of results."
-  (save-excursion
-    (cond
-     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
-     ((org-at-item-p) (let* ((struct (org-list-struct))
-			     (prvs (org-list-prevs-alist struct)))
-			(org-list-get-list-end (point-at-bol) struct prvs)))
-     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
-      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
-	     (forward-char 1) (point)))
-     (t
-      (let ((case-fold-search t))
-	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
-	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
-				      nil t)
-		   (forward-char 1))
-	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
-	    (forward-line 1))))
-      (point)))))
-
-(defun org-babel-result-to-file (result &optional description)
-  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
-If the `default-directory' is different from the containing
-file's directory then expand relative links."
-  (when (stringp result)
-    (format "[[file:%s]%s]"
-	    (if (and default-directory
-		     buffer-file-name
-		     (not (string= (expand-file-name default-directory)
-				   (expand-file-name
-				    (file-name-directory buffer-file-name)))))
-		(expand-file-name result default-directory)
-	      result)
-	    (if description (concat "[" description "]") ""))))
-
-(defvar org-babel-capitalize-examplize-region-markers nil
-  "Make true to capitalize begin/end example markers inserted by code blocks.")
-
-(defun org-babel-examplize-region (beg end &optional results-switches)
-  "Comment out region using the inline '==' or ': ' org example quote."
-  (interactive "*r")
-  (let ((chars-between (lambda (b e)
-			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
-	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
-				     (upcase str) str))))
-    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
-	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
-	(save-excursion
-	  (goto-char beg)
-	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
-				   (delete-region beg end)))))
-      (let ((size (count-lines beg end)))
-	(save-excursion
-	  (cond ((= size 0))	      ; do nothing for an empty result
-		((< size org-babel-min-lines-for-block-output)
-		 (goto-char beg)
-		 (dotimes (n size)
-		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
-		(t
-		 (goto-char beg)
-		 (insert (if results-switches
-			     (format "%s%s\n"
-				     (funcall maybe-cap "#+begin_example")
-				     results-switches)
-			   (funcall maybe-cap "#+begin_example\n")))
-		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
-		 (insert (funcall maybe-cap "#+end_example\n")))))))))
-
-(defun org-babel-update-block-body (new-body)
-  "Update the body of the current code block to NEW-BODY."
-  (if (not (org-babel-where-is-src-block-head))
-      (error "Not in a source block")
-    (save-match-data
-      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
-    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
-
-(defun org-babel-merge-params (&rest plists)
-  "Combine all parameter association lists in PLISTS.
-Later elements of PLISTS override the values of previous elements.
-This takes into account some special considerations for certain
-parameters when merging lists."
-  (let* ((results-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
-	 (exports-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
-	 (variable-index 0)
-	 (e-merge (lambda (exclusive-groups &rest result-params)
-		    ;; maintain exclusivity of mutually exclusive parameters
-		    (let (output)
-		      (mapc (lambda (new-params)
-			      (mapc (lambda (new-param)
-				      (mapc (lambda (exclusive-group)
-					      (when (member new-param exclusive-group)
-						(mapcar (lambda (excluded-param)
-							  (setq output
-								(delete
-								 excluded-param
-								 output)))
-							exclusive-group)))
-					    exclusive-groups)
-				      (setq output (org-uniquify
-						    (cons new-param output))))
-				    new-params))
-			    result-params)
-		      output)))
-	 params results exports tangle noweb cache vars shebang comments padline)
-
-    (mapc
-     (lambda (plist)
-       (mapc
-	(lambda (pair)
-	  (case (car pair)
-	    (:var
-	     (let ((name (if (listp (cdr pair))
-			     (cadr pair)
-			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
-					      (cdr pair))
-				(intern (match-string 1 (cdr pair)))))))
-	       (if name
-		   (setq vars
-			 (append
-			  (if (member name (mapcar #'car vars))
-			      (delq nil
-				    (mapcar
-				     (lambda (p)
-				       (unless (equal (car p) name) p))
-				     vars))
-			    vars)
-			  (list (cons name pair))))
-		 ;; if no name is given and we already have named variables
-		 ;; then assign to named variables in order
-		 (if (and vars (nth variable-index vars))
-		     (prog1 (setf (cddr (nth variable-index vars))
-				  (concat (symbol-name
-					   (car (nth variable-index vars)))
-					  "=" (cdr pair)))
-		       (incf variable-index))
-		   (error "Variable \"%s\" must be assigned a default value"
-			  (cdr pair))))))
-	    (:results
-	     (setq results (funcall e-merge results-exclusive-groups
-				    results
-				    (split-string
-				     (let ((r (cdr pair)))
-				       (if (stringp r) r (eval r)))))))
-	    (:file
-	     (when (cdr pair)
-	       (setq results (funcall e-merge results-exclusive-groups
-				      results '("file")))
-	       (unless (or (member "both" exports)
-			   (member "none" exports)
-			   (member "code" exports))
-		 (setq exports (funcall e-merge exports-exclusive-groups
-					exports '("results"))))
-	       (setq params (cons pair (assq-delete-all (car pair) params)))))
-	    (:exports
-	     (setq exports (funcall e-merge exports-exclusive-groups
-				    exports (split-string (cdr pair)))))
-	    (:tangle ;; take the latest -- always overwrite
-	     (setq tangle (or (list (cdr pair)) tangle)))
-	    (:noweb
-	     (setq noweb (funcall e-merge
-				  '(("yes" "no" "tangle" "no-export"
-				     "strip-export" "eval"))
-				  noweb
-				  (split-string (or (cdr pair) "")))))
-	    (:cache
-	     (setq cache (funcall e-merge '(("yes" "no")) cache
-				  (split-string (or (cdr pair) "")))))
-	    (:padline
-	     (setq padline (funcall e-merge '(("yes" "no")) padline
-				    (split-string (or (cdr pair) "")))))
-	    (:shebang ;; take the latest -- always overwrite
-	     (setq shebang (or (list (cdr pair)) shebang)))
-	    (:comments
-	     (setq comments (funcall e-merge '(("yes" "no")) comments
-				     (split-string (or (cdr pair) "")))))
-	    (t ;; replace: this covers e.g. :session
-	     (setq params (cons pair (assq-delete-all (car pair) params))))))
-	plist))
-     plists)
-    (setq vars (reverse vars))
-    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
-    (mapc
-     (lambda (hd)
-       (let ((key (intern (concat ":" (symbol-name hd))))
-	     (val (eval hd)))
-	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
-     '(results exports tangle noweb padline cache shebang comments))
-    params))
-
-(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
-  "Set to true to use regular expressions to expand noweb references.
-This results in much faster noweb reference expansion but does
-not properly allow code blocks to inherit the \":noweb-ref\"
-header argument from buffer or subtree wide properties.")
-
-(defun org-babel-noweb-p (params context)
-  "Check if PARAMS require expansion in CONTEXT.
-CONTEXT may be one of :tangle, :export or :eval."
-  (let* (intersect
-	 (intersect (lambda (as bs)
-		      (when as
-			(if (member (car as) bs)
-			    (car as)
-			  (funcall intersect (cdr as) bs))))))
-    (funcall intersect (case context
-			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
-			 (:eval   '("yes" "no-export" "strip-export" "eval"))
-			 (:export '("yes")))
-	     (split-string (or (cdr (assoc :noweb params)) "")))))
-
-(defun org-babel-expand-noweb-references (&optional info parent-buffer)
-  "Expand Noweb references in the body of the current source code block.
-
-For example the following reference would be replaced with the
-body of the source-code block named 'example-block'.
-
-<<example-block>>
-
-Note that any text preceding the <<foo>> construct on a line will
-be interposed between the lines of the replacement text.  So for
-example if <<foo>> is placed behind a comment, then the entire
-replacement text will also be commented.
-
-This function must be called from inside of the buffer containing
-the source-code block which holds BODY.
-
-In addition the following syntax can be used to insert the
-results of evaluating the source-code block named 'example-block'.
-
-<<example-block()>>
-
-Any optional arguments can be passed to example-block by placing
-the arguments inside the parenthesis following the convention
-defined by `org-babel-lob'.  For example
-
-<<example-block(a=9)>>
-
-would set the value of argument \"a\" equal to \"9\".  Note that
-these arguments are not evaluated in the current source-code
-block but are passed literally to the \"example-block\"."
-  (let* ((parent-buffer (or parent-buffer (current-buffer)))
-         (info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-	 (ob-nww-start org-babel-noweb-wrap-start)
-	 (ob-nww-end org-babel-noweb-wrap-end)
-	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
-	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
-			    ":noweb-ref[ \t]+" "\\)"))
-         (new-body "")
-	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
-	 (c-wrap (lambda (text)
-		   (with-temp-buffer
-		     (funcall (intern (concat lang "-mode")))
-		     (comment-region (point) (progn (insert text) (point)))
-		     (org-babel-trim (buffer-string)))))
-	 index source-name evaluate prefix blocks-in-buffer)
-    (with-temp-buffer
-      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
-      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
-      (insert body) (goto-char (point-min))
-      (setq index (point))
-      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
-	(save-match-data (setf source-name (match-string 1)))
-	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
-	(save-match-data
-	  (setq prefix
-		(buffer-substring (match-beginning 0)
-				  (save-excursion
-				    (beginning-of-line 1) (point)))))
-	;; add interval to new-body (removing noweb reference)
-	(goto-char (match-beginning 0))
-	(funcall nb-add (buffer-substring index (point)))
-	(goto-char (match-end 0))
-	(setq index (point))
-	(funcall nb-add
-		 (with-current-buffer parent-buffer
-		   (save-restriction
-		     (widen)
-		     (mapconcat ;; interpose PREFIX between every line
-		      #'identity
-		      (split-string
-		       (if evaluate
-			   (let ((raw (org-babel-ref-resolve source-name)))
-			     (if (stringp raw) raw (format "%S" raw)))
-			 (or
-			  ;; retrieve from the library of babel
-			  (nth 2 (assoc (intern source-name)
-					org-babel-library-of-babel))
-			  ;; return the contents of headlines literally
-			  (save-excursion
-			    (when (org-babel-ref-goto-headline-id source-name)
-			      (org-babel-ref-headline-body)))
-			  ;; find the expansion of reference in this buffer
-			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
-				expansion)
-			    (save-excursion
-			      (goto-char (point-min))
-			      (if org-babel-use-quick-and-dirty-noweb-expansion
-				  (while (re-search-forward rx nil t)
-				    (let* ((i (org-babel-get-src-block-info 'light))
-					   (body (org-babel-expand-noweb-references i))
-					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						    "\n"))
-					   (full (if comment
-						     ((lambda (cs)
-							(concat (funcall c-wrap (car cs)) "\n"
-								body "\n"
-								(funcall c-wrap (cadr cs))))
-						      (org-babel-tangle-comment-links i))
-						   body)))
-				      (setq expansion (cons sep (cons full expansion)))))
-				(org-babel-map-src-blocks nil
-				  (let ((i (org-babel-get-src-block-info 'light)))
-				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
-						     (nth 4 i))
-						 source-name)
-				      (let* ((body (org-babel-expand-noweb-references i))
-					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						      "\n"))
-					     (full (if comment
-						       ((lambda (cs)
-							  (concat (funcall c-wrap (car cs)) "\n"
-								  body "\n"
-								  (funcall c-wrap (cadr cs))))
-							(org-babel-tangle-comment-links i))
-						     body)))
-					(setq expansion
-					      (cons sep (cons full expansion)))))))))
-			    (and expansion
-				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
-			  ;; possibly raise an error if named block doesn't exist
-			  (if (member lang org-babel-noweb-error-langs)
-			      (error "%s" (concat
-					   (org-babel-noweb-wrap source-name)
-					   "could not be resolved (see "
-					   "`org-babel-noweb-error-langs')"))
-			    "")))
-		       "[\n\r]") (concat "\n" prefix))))))
-      (funcall nb-add (buffer-substring index (point-max))))
-    new-body))
-
-(defun org-babel-script-escape (str &optional force)
-  "Safely convert tables into elisp lists."
-  (let (in-single in-double out)
-    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
-     (if (or force
-	     (and (stringp str)
-		  (> (length str) 2)
-		  (or (and (string-equal "[" (substring str 0 1))
-			   (string-equal "]" (substring str -1)))
-		      (and (string-equal "{" (substring str 0 1))
-			   (string-equal "}" (substring str -1)))
-		      (and (string-equal "(" (substring str 0 1))
-			   (string-equal ")" (substring str -1))))))
-	 (org-babel-read
-	  (concat
-	   "'"
-	   (progn
-	     (mapc
-	      (lambda (ch)
-		(setq
-		 out
-		 (case ch
-		   (91 (if (or in-double in-single) ; [
-			   (cons 91 out)
-			 (cons 40 out)))
-		   (93 (if (or in-double in-single) ; ]
-			   (cons 93 out)
-			 (cons 41 out)))
-		   (123 (if (or in-double in-single) ; {
-			    (cons 123 out)
-			  (cons 40 out)))
-		   (125 (if (or in-double in-single) ; }
-			    (cons 125 out)
-			  (cons 41 out)))
-		   (44 (if (or in-double in-single) ; ,
-			   (cons 44 out) (cons 32 out)))
-		   (39 (if in-double	; '
-			   (cons 39 out)
-			 (setq in-single (not in-single)) (cons 34 out)))
-		   (34 (if in-single	; "
-			   (append (list 34 32) out)
-			 (setq in-double (not in-double)) (cons 34 out)))
-		   (t  (cons ch out)))))
-	      (string-to-list str))
-	     (apply #'string (reverse out)))))
-       str))))
-
-(defun org-babel-read (cell &optional inhibit-lisp-eval)
-  "Convert the string value of CELL to a number if appropriate.
-Otherwise if cell looks like lisp (meaning it starts with a
-\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
-return it unmodified as a string.  Optional argument NO-LISP-EVAL
-inhibits lisp evaluation for situations in which is it not
-appropriate."
-  (if (and (stringp cell) (not (equal cell "")))
-      (or (org-babel-number-p cell)
-          (if (and (not inhibit-lisp-eval)
-		   (member (substring cell 0 1) '("(" "'" "`" "[")))
-              (eval (read cell))
-            (if (string= (substring cell 0 1) "\"")
-		(read cell)
-	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
-    cell))
-
-(defun org-babel-number-p (string)
-  "If STRING represents a number return its value."
-  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
-           (= (length (substring string (match-beginning 0)
-				 (match-end 0)))
-	      (length string)))
-      (string-to-number string)))
-
-(defun org-babel-import-elisp-from-file (file-name &optional separator)
-  "Read the results located at FILE-NAME into an elisp table.
-If the table is trivial, then return it as a scalar."
-  (let (result)
-    (save-window-excursion
-      (with-temp-buffer
-	(condition-case err
-	    (progn
-	      (org-table-import file-name separator)
-	      (delete-file file-name)
-	      (setq result (mapcar (lambda (row)
-				     (mapcar #'org-babel-string-read row))
-				   (org-table-to-lisp))))
-	  (error (message "Error reading results: %s" err) nil)))
-      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
-	  (if (consp (car result))
-	      (if (null (cdr (car result)))
-		  (caar result)
-		result)
-	    (car result))
-	result))))
-
-(defun org-babel-string-read (cell)
-  "Strip nested \"s from around strings."
-  (org-babel-read (or (and (stringp cell)
-                           (string-match "\\\"\\(.+\\)\\\"" cell)
-                           (match-string 1 cell))
-                      cell) t))
-
-(defun org-babel-reverse-string (string)
-  "Return the reverse of STRING."
-  (apply 'string (reverse (string-to-list string))))
-
-(defun org-babel-chomp (string &optional regexp)
-  "Strip trailing spaces and carriage returns from STRING.
-Default regexp used is \"[ \f\t\n\r\v]\" but can be
-overwritten by specifying a regexp as a second argument."
-  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
-    (while (and (> (length string) 0)
-                (string-match regexp (substring string -1)))
-      (setq string (substring string 0 -1)))
-    string))
-
-(defun org-babel-trim (string &optional regexp)
-  "Strip leading and trailing spaces and carriage returns from STRING.
-Like `org-babel-chomp' only it runs on both the front and back
-of the string."
-  (org-babel-chomp (org-babel-reverse-string
-                    (org-babel-chomp (org-babel-reverse-string string) regexp))
-                   regexp))
-
-(defvar org-babel-org-babel-call-process-region-original nil)
-(defun org-babel-tramp-handle-call-process-region
-  (start end program &optional delete buffer display &rest args)
-  "Use Tramp to handle `call-process-region'.
-Fixes a bug in `tramp-handle-call-process-region'."
-  (if (and (featurep 'tramp) (file-remote-p default-directory))
-      (let ((tmpfile (tramp-compat-make-temp-file "")))
-	(write-region start end tmpfile)
-	(when delete (delete-region start end))
-	(unwind-protect
-	    ;;	(apply 'call-process program tmpfile buffer display args)
-            ;; bug in tramp
-	    (apply 'process-file program tmpfile buffer display args)
-	  (delete-file tmpfile)))
-    ;; org-babel-call-process-region-original is the original emacs
-    ;; definition.  It is in scope from the let binding in
-    ;; org-babel-execute-src-block
-    (apply org-babel-call-process-region-original
-           start end program delete buffer display args)))
-
-(defun org-babel-local-file-name (file)
-  "Return the local name component of FILE."
-  (if (file-remote-p file)
-      (let (localname)
-	(with-parsed-tramp-file-name file nil
-				     localname))
-    file))
-
-(defun org-babel-process-file-name (name &optional no-quote-p)
-  "Prepare NAME to be used in an external process.
-If NAME specifies a remote location, the remote portion of the
-name is removed, since in that case the process will be executing
-remotely.  The file name is then processed by `expand-file-name'.
-Unless second argument NO-QUOTE-P is non-nil, the file name is
-additionally processed by `shell-quote-argument'"
-  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
-   (expand-file-name (org-babel-local-file-name name))))
-
-(defvar org-babel-temporary-directory)
-(unless (or noninteractive (boundp 'org-babel-temporary-directory))
-  (defvar org-babel-temporary-directory
-    (or (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory)
-	     org-babel-temporary-directory)
-	(make-temp-file "babel-" t))
-    "Directory to hold temporary files created to execute code blocks.
-Used by `org-babel-temp-file'.  This directory will be removed on
-Emacs shutdown."))
-
-(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
-  "Call the code to parse raw string results according to RESULT-PARAMS."
-  (declare (indent 1))
-  `(unless (member "none" result-params)
-     (if (or (member "scalar" result-params)
-	     (member "verbatim" result-params)
-	     (member "html" result-params)
-	     (member "code" result-params)
-	     (member "pp" result-params)
-	     (and (member "output" result-params)
-		  (not (member "table" result-params))))
-	 ,scalar-form
-       ,@table-forms)))
-
-(defun org-babel-temp-file (prefix &optional suffix)
-  "Create a temporary file in the `org-babel-temporary-directory'.
-Passes PREFIX and SUFFIX directly to `make-temp-file' with the
-value of `temporary-file-directory' temporarily set to the value
-of `org-babel-temporary-directory'."
-  (if (file-remote-p default-directory)
-      (make-temp-file
-       (concat (file-remote-p default-directory)
-	       (expand-file-name
-		prefix temporary-file-directory)
-	       nil suffix))
-    (let ((temporary-file-directory
-	   (or (and (boundp 'org-babel-temporary-directory)
-		    (file-exists-p org-babel-temporary-directory)
-		    org-babel-temporary-directory)
-	       temporary-file-directory)))
-      (make-temp-file prefix nil suffix))))
-
-(defun org-babel-remove-temporary-directory ()
-  "Remove `org-babel-temporary-directory' on Emacs shutdown."
-  (when (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory))
-    ;; taken from `delete-directory' in files.el
-    (condition-case nil
-	(progn
-	  (mapc (lambda (file)
-		  ;; This test is equivalent to
-		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
-		  ;; but more efficient
-		  (if (eq t (car (file-attributes file)))
-		      (delete-directory file)
-		    (delete-file file)))
-		;; We do not want to delete "." and "..".
-		(directory-files org-babel-temporary-directory 'full
-				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
-	  (delete-directory org-babel-temporary-directory))
-      (error
-       (message "Failed to remove temporary Org-babel directory %s"
-		(if (boundp 'org-babel-temporary-directory)
-		    org-babel-temporary-directory
-		  "[directory not defined]"))))))
-
-(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
+(require 'ob-core)
+(require 'ob-comint)
+(require 'ob-exp)
+(require 'ob-keys)
+(require 'ob-table)
+(require 'ob-lob)
+(require 'ob-ref)
+(require 'ob-tangle)
 
 (provide 'ob)
 
diff --git a/lisp/org.el b/lisp/org.el
index c4a006b..1fb937d 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -4957,12 +4957,6 @@ This variable is set by `org-before-change-function'.
 
 ;; babel
 (require 'ob)
-(require 'ob-table)
-(require 'ob-lob)
-(require 'ob-ref)
-(require 'ob-tangle)
-(require 'ob-comint)
-(require 'ob-keys)
 
 ;;;###autoload
 (define-derived-mode org-mode outline-mode "Org"
-- 
1.8.0.1


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From b2ec5b804223acf36c42f096bfd8d654be8eaa6f Mon Sep 17 00:00:00 2001
From: Eric Schulte <eric.schulte@gmx.com>
Date: Tue, 11 Dec 2012 07:17:13 -0700
Subject: [PATCH 2/2] consolidate Babel defcustoms in ob.el

---
 lisp/ob-core.el   |  25 ---------
 lisp/ob-exp.el    |  45 ----------------
 lisp/ob-lob.el    |   7 ---
 lisp/ob-tangle.el |  71 -------------------------
 lisp/ob.el        | 156 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 156 insertions(+), 148 deletions(-)

diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index 7b4ee92..04264a2 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -119,31 +119,6 @@ remove code block execution from the C-c C-c keybinding."
 ;; don't allow this variable to be changed through file settings
 (put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
 
-(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
-  "Remove code block evaluation from the C-c C-c key binding."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-
-(defcustom org-babel-results-keyword "RESULTS"
-  "Keyword used to name results generated by code blocks.
-Should be either RESULTS or NAME however any capitalization may
-be used."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-start "<<"
-  "String used to begin a noweb reference in a code block.
-See also `org-babel-noweb-wrap-end'."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-end ">>"
-  "String used to end a noweb reference in a code block.
-See also `org-babel-noweb-wrap-start'."
-  :group 'org-babel
-  :type 'string)
-
 (defun org-babel-noweb-wrap (&optional regexp)
   (concat org-babel-noweb-wrap-start
 	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index e2be94d..d61b1e6 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -50,15 +50,6 @@
 (declare-function org-element-type "org-element" (element))
 (declare-function org-escape-code-in-string "org-src" (s))
 
-(defcustom org-export-babel-evaluate t
-  "Switch controlling code evaluation during export.
-When set to nil no code will be evaluated as part of the export
-process."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-(put 'org-export-babel-evaluate 'safe-local-variable (lambda (x) (eq x nil)))
-
 (defun org-babel-exp-get-export-buffer ()
   "Return the current export buffer if possible."
   (cond
@@ -128,23 +119,6 @@ Assume point is at the beginning of block's starting line."
 	  (setf hash (org-babel-sha1-hash info)))
 	(org-babel-exp-do-export info 'block hash)))))
 
-(defcustom org-babel-exp-call-line-template
-  ""
-  "Template used to export call lines.
-This template may be customized to include the call line name
-with any export markup.  The template is filled out using
-`org-fill-template', and the following %keys may be used.
-
- line --- call line
-
-An example value would be \"\\n: call: %line\" to export the call line
-wrapped in a verbatim environment.
-
-Note: the results are inserted separately after the contents of
-this template."
-  :group 'org-babel
-  :type 'string)
-
 (defvar org-babel-default-lob-header-args)
 (defun org-babel-exp-non-block-elements (start end)
   "Process inline source and call lines between START and END for export."
@@ -333,25 +307,6 @@ The function respects the value of the :exports header argument."
       ('both (org-babel-exp-results info type nil hash)
 	     (org-babel-exp-code info)))))
 
-(defcustom org-babel-exp-code-template
-  "#+BEGIN_SRC %lang%flags\n%body\n#+END_SRC"
-  "Template used to export the body of code blocks.
-This template may be customized to include additional information
-such as the code block name, or the values of particular header
-arguments.  The template is filled out using `org-fill-template',
-and the following %keys may be used.
-
- lang ------ the language of the code block
- name ------ the name of the code block
- body ------ the body of the code block
- flags ----- the flags passed to the code block
-
-In addition to the keys mentioned above, every header argument
-defined for the code block may be used as a key and will be
-replaced with its value."
-  :group 'org-babel
-  :type 'string)
-
 (defun org-babel-exp-code (info)
   "Return the original code block formatted for export."
   (setf (nth 1 info)
diff --git a/lisp/ob-lob.el b/lisp/ob-lob.el
index 5c21db7..8dd9f58 100644
--- a/lisp/ob-lob.el
+++ b/lisp/ob-lob.el
@@ -35,13 +35,6 @@
 This is an association list.  Populate the library by adding
 files to `org-babel-lob-files'.")
 
-(defcustom org-babel-lob-files '()
-  "Files used to populate the `org-babel-library-of-babel'.
-To add files to this list use the `org-babel-lob-ingest' command."
-  :group 'org-babel
-  :version "24.1"
-  :type 'list)
-
 (defvar org-babel-default-lob-header-args '((:exports . "results"))
   "Default header arguments to use when exporting #+lob/call lines.")
 
diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el
index 697a269..25beabe 100644
--- a/lisp/ob-tangle.el
+++ b/lisp/ob-tangle.el
@@ -37,77 +37,6 @@
 (declare-function org-babel-update-block-body "org" (new-body))
 (declare-function make-directory "files" (dir &optional parents))
 
-(defcustom org-babel-tangle-lang-exts
-  '(("emacs-lisp" . "el"))
-  "Alist mapping languages to their file extensions.
-The key is the language name, the value is the string that should
-be inserted as the extension commonly used to identify files
-written in this language.  If no entry is found in this list,
-then the name of the language is used."
-  :group 'org-babel-tangle
-  :version "24.1"
-  :type '(repeat
-	  (cons
-	   (string "Language name")
-	   (string "File Extension"))))
-
-(defcustom org-babel-post-tangle-hook nil
-  "Hook run in code files tangled by `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-pre-tangle-hook '(save-buffer)
-  "Hook run at the beginning of `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-body-hook nil
-  "Hook run over the contents of each code block body."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-process-comment-text #'org-babel-trim
-  "Function called to process raw Org-mode text collected to be
-inserted as comments in tangled source-code files.  The function
-should take a single string argument and return a string
-result.  The default value is `org-babel-trim'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'function)
-
 (defun org-babel-find-file-noselect-refresh (file)
   "Find file ensuring that the latest changes on disk are
 represented in the file."
diff --git a/lisp/ob.el b/lisp/ob.el
index 3010503..0f189b3 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -32,6 +32,162 @@
 (require 'ob-ref)
 (require 'ob-tangle)
 
+\f
+;;; Core defcustoms
+(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
+  "Remove code block evaluation from the C-c C-c key binding."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+
+(defcustom org-babel-results-keyword "RESULTS"
+  "Keyword used to name results generated by code blocks.
+Should be either RESULTS or NAME however any capitalization may
+be used."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-start "<<"
+  "String used to begin a noweb reference in a code block.
+See also `org-babel-noweb-wrap-end'."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-end ">>"
+  "String used to end a noweb reference in a code block.
+See also `org-babel-noweb-wrap-start'."
+  :group 'org-babel
+  :type 'string)
+
+\f
+;;; Export defcustoms
+(defcustom org-export-babel-evaluate t
+  "Switch controlling code evaluation during export.
+When set to nil no code will be evaluated as part of the export
+process."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+(put 'org-export-babel-evaluate 'safe-local-variable (lambda (x) (eq x nil)))
+
+(defcustom org-babel-exp-call-line-template
+  ""
+  "Template used to export call lines.
+This template may be customized to include the call line name
+with any export markup.  The template is filled out using
+`org-fill-template', and the following %keys may be used.
+
+ line --- call line
+
+An example value would be \"\\n: call: %line\" to export the call line
+wrapped in a verbatim environment.
+
+Note: the results are inserted separately after the contents of
+this template."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-exp-code-template
+  "#+BEGIN_SRC %lang%flags\n%body\n#+END_SRC"
+  "Template used to export the body of code blocks.
+This template may be customized to include additional information
+such as the code block name, or the values of particular header
+arguments.  The template is filled out using `org-fill-template',
+and the following %keys may be used.
+
+ lang ------ the language of the code block
+ name ------ the name of the code block
+ body ------ the body of the code block
+ flags ----- the flags passed to the code block
+
+In addition to the keys mentioned above, every header argument
+defined for the code block may be used as a key and will be
+replaced with its value."
+  :group 'org-babel
+  :type 'string)
+
+\f
+;;; Tangle defcustoms
+(defcustom org-babel-tangle-lang-exts
+  '(("emacs-lisp" . "el"))
+  "Alist mapping languages to their file extensions.
+The key is the language name, the value is the string that should
+be inserted as the extension commonly used to identify files
+written in this language.  If no entry is found in this list,
+then the name of the language is used."
+  :group 'org-babel-tangle
+  :version "24.1"
+  :type '(repeat
+	  (cons
+	   (string "Language name")
+	   (string "File Extension"))))
+
+(defcustom org-babel-post-tangle-hook nil
+  "Hook run in code files tangled by `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-pre-tangle-hook '(save-buffer)
+  "Hook run at the beginning of `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-body-hook nil
+  "Hook run over the contents of each code block body."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-process-comment-text #'org-babel-trim
+  "Function called to process raw Org-mode text collected to be
+inserted as comments in tangled source-code files.  The function
+should take a single string argument and return a string
+result.  The default value is `org-babel-trim'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'function)
+
+\f
+;;; Export defcustoms
+(defcustom org-babel-lob-files '()
+  "Files used to populate the `org-babel-library-of-babel'.
+To add files to this list use the `org-babel-lob-ingest' command."
+  :group 'org-babel
+  :version "24.1"
+  :type 'list)
+
 (provide 'ob)
 
 ;; Local variables:
-- 
1.8.0.1


[-- Attachment #4: Type: text/plain, Size: 46 bytes --]


-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[flav]

Le 11/12/2012 14:45, Eric Schulte a écrit :
> flav <flav.justflav@gmail.com> writes:
>
>> Le 10/12/2012 18:24, Eric Schulte a écrit :
>>> 1. make sure you're using a recent version of Org-mode, either the
>>>      latest release or from git, see
>>>      http://orgmode.org/worg/org-faq.html#Keeping-current
>>>
>>> 2. start Emacs with the -Q flag (to ensure there is no problem caused by
>>>      the rest of your config)
>>>
>>> 3. evaluate the Babel config
>>>
>>>        (require 'org)
>>>        (org-babel-do-load-languages
>>>              'org-babel-load-languages
>>>              '((perl . t)))
>>>
>>> 4. if you still have problems, then write back with your version of
>>>      Emacs, and your version of org-mode (reported with M-x org-version)
>>>
>>> Hope this helps,
> [...]
>> Hello,
>> Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
>>    (org-babel-do-load-languages (quote org-babel-load-languages) (quote
>> (...)))
>>    eval((org-babel-do-load-languages (quote org-babel-load-languages)
>> (quote (..$
>>    eval-last-sexp-1(t)
>>    eval-last-sexp(t)
>>    eval-print-last-sexp()
>>    call-interactively(eval-print-last-sexp nil nil)
>>
>> Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)
>> GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6)
>>   of 2012-09-21 on allspice, modified by Debian
>>
>> Thanks for help.
> I don't see how this is possible.  I am also using Org-mode 7.9.2,
> here's my Org-mode version
>
>    Org-mode version 7.9.2 (release_7.9.2-603-gf8a69a @ /home/eschulte/.emacs.d/src/org-mode/lisp/)
>
> The `org-babel-do-load-languages' function is defined in org.el, so once
> you have run (require 'org), I don't believe it is possible for this
> function to remain undefined.  Could you
>
> 1. open the org.el file manually on your system,
/usr/share/emacs/site-lisp/org/org.el
> 2. while visiting the file, search for the string
>     "org-babel-do-load-languages" to confirm that the function is defined
>     in that file
(defun org-babel-do-load-languages (sym value)
at line 123

> 3. run `eval-buffer' while still visiting that file,
ok
> 4. and then finally run
>
>         (org-babel-do-load-languages
>               'org-babel-load-languages
>               '((perl . t)))
(org-babel-do-load-languages
              'org-babel-load-languages
              '((perl . t)))
((perl . t))
it is ok

>
> If the above does not work, please let me know at which stage it fails.
> If it does work, then I suspect the problem is related to something
> peculiar to your system, and is beyond my abilities to help you with.
Thanks for help.
>
> Best,
>


-- 
flav

Re: babel perl issue

[Achim Gratz]

Eric Schulte writes:
>> Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)
>> GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6)
>>  of 2012-09-21 on allspice, modified by Debian
>>
>> Thanks for help.
>
> I don't see how this is possible.

He's using Org from a Debian package that is itself built from a tarball
(I believe that Sebastian Delafond maintains these).  Quite obviously
this package has not been correctly activated, in other words the
autoload definitions are mixed up with the older version of Org that
comes with Emacs 23.3.  In this case (since it is a Debian package) the
activation should have been done via site-init.el so as to not require
user intervention.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Factory and User Sound Singles for Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#WaldorfSounds

Re: babel perl issue

[Achim Gratz]

Eric Schulte writes:
> I'm attaching two patches which implement this new require structure.
> They move ob.el -> ob-core.el.  The new ob.el (which is now loaded by
> every file which requires 'ob) does two things.

That looks OK so far, just one nit: it would be much cleaner from the
perspective of Git if you first renamed ob.el -> ob-core.el and then
patched it.  That way git blame would continue to work across that
commit in a mostly sensible manner.  Right now all lines in those two
files are new things that sprang into existence with this commit as far
as Git is concerned.

> 1. It defines every Babel defcustom (excluding the language-specific
>    defcustoms).  Should defvars be moved here as well?

Not necessarily, but if it cleans up the code, this would be worth
doing.  Maybe as a second step, since none of it should be broken right
now?

> 2. It loads the remainder of Babel, namely; ob-eval, ob-core, ob-comint,
>    ob-exp, ob-keys, ob-table, ob-lob, ob-ref and ob-tangle.

Which codepaths would directly activate ob-comint for instance and why
is it appropriate to just (require 'ob-core) in this case?

> This allows for most of the language files to be simplified as they now
> only need to require ob, rather than requiring the subset of the above
> particular to their needs.

Looks nicer to me, anyway.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptations for Waldorf Q V3.00R3 and Q+ V3.54R2:
http://Synth.Stromeko.net/Downloads.html#WaldorfSDada

Re: babel perl issue

[Bastien]

Hi Eric,

Eric Schulte <schulte.eric@gmail.com> writes:

> I'm attaching two patches which implement this new require structure.
> They move ob.el -> ob-core.el.  The new ob.el (which is now loaded by
> every file which requires 'ob) does two things.

I'm slowly catching up, fixing issues and reading the mailing list.

Can you please hold this change until tomorrow eve?  It looks good,
but I'd like to understand it thoroughly.

Thanks!

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

[-- Attachment #1: Type: text/plain, Size: 1948 bytes --]

Achim Gratz <Stromeko@nexgo.de> writes:

> Eric Schulte writes:
>> I'm attaching two patches which implement this new require structure.
>> They move ob.el -> ob-core.el.  The new ob.el (which is now loaded by
>> every file which requires 'ob) does two things.
>
> That looks OK so far, just one nit: it would be much cleaner from the
> perspective of Git if you first renamed ob.el -> ob-core.el and then
> patched it.  That way git blame would continue to work across that
> commit in a mostly sensible manner.  Right now all lines in those two
> files are new things that sprang into existence with this commit as far
> as Git is concerned.
>

I will make this change (in fact I had done this originally, but then
didn't want to send too many patches so I compressed the commit
history).

>
>> 1. It defines every Babel defcustom (excluding the language-specific
>>    defcustoms).  Should defvars be moved here as well?
>
> Not necessarily, but if it cleans up the code, this would be worth
> doing.  Maybe as a second step, since none of it should be broken right
> now?
>

In fact I think this would make the code less readable, so I won't move
around any defvars.

>
>> 2. It loads the remainder of Babel, namely; ob-eval, ob-core, ob-comint,
>>    ob-exp, ob-keys, ob-table, ob-lob, ob-ref and ob-tangle.
>
> Which codepaths would directly activate ob-comint for instance and why
> is it appropriate to just (require 'ob-core) in this case?
>

Each language file will only need to (require 'ob), only a few of the
core Babel files would actually require ob-core.  Here's a diagram of
the require structure.

    # shell-script
    (echo "digraph {";
      for file in lisp/ob{,-eval,-core,-keys,-table,-ref,-comint,-exp,-lob,-tangle}.el;do
        name=$(basename $file .el)
        echo "\"$name\";"
        rgrep "require 'ob" $file|sed "s/^.*'/\"/;s/)/\" -> \"$name\"\;/;"
      done;echo "}";
    )|dot -Tpng > /tmp/babel-requires.png


[-- Attachment #2: babel-requires.png --]
[-- Type: image/png, Size: 251741 bytes --]

[-- Attachment #3: Type: text/plain, Size: 379 bytes --]


>
>> This allows for most of the language files to be simplified as they now
>> only need to require ob, rather than requiring the subset of the above
>> particular to their needs.
>
> Looks nicer to me, anyway.
>

Me too, I'll apply this after Bastien gets a chance to look it over.

Thanks for your help,

>
>
> Regards,
> Achim.

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Hi Eric,
>
> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> I'm attaching two patches which implement this new require structure.
>> They move ob.el -> ob-core.el.  The new ob.el (which is now loaded by
>> every file which requires 'ob) does two things.
>
> I'm slowly catching up, fixing issues and reading the mailing list.
>
> Can you please hold this change until tomorrow eve?  It looks good,
> but I'd like to understand it thoroughly.
>

Sure thing, I have the patches queued up locally and ready to commit.

Please let me know if I can explain anything, or if you'd like to see
the patches before the hit the master branch.

Cheers,

>
> Thanks!

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[flav]

[-- Attachment #1: Type: text/plain, Size: 2749 bytes --]

Ok,
I have deleted some files on my system.
I have mis install org (twice in 2 path, bla bla) and I seem to work better.
Thanks a lot for help
And excuse me



2012/12/11 Eric Schulte <schulte.eric@gmail.com>

> flav <flav.justflav@gmail.com> writes:
>
> > Le 10/12/2012 18:24, Eric Schulte a écrit :
> >> 1. make sure you're using a recent version of Org-mode, either the
> >>     latest release or from git, see
> >>     http://orgmode.org/worg/org-faq.html#Keeping-current
> >>
> >> 2. start Emacs with the -Q flag (to ensure there is no problem caused by
> >>     the rest of your config)
> >>
> >> 3. evaluate the Babel config
> >>
> >>       (require 'org)
> >>       (org-babel-do-load-languages
> >>             'org-babel-load-languages
> >>             '((perl . t)))
> >>
> >> 4. if you still have problems, then write back with your version of
> >>     Emacs, and your version of org-mode (reported with M-x org-version)
> >>
> >> Hope this helps,
> [...]
> > Hello,
> > Debugger entered--Lisp error: (void-function org-babel-do-load-languages)
> >   (org-babel-do-load-languages (quote org-babel-load-languages) (quote
> > (...)))
> >   eval((org-babel-do-load-languages (quote org-babel-load-languages)
> > (quote (..$
> >   eval-last-sexp-1(t)
> >   eval-last-sexp(t)
> >   eval-print-last-sexp()
> >   call-interactively(eval-print-last-sexp nil nil)
> >
> > Org-mode version 7.9.2 (7.9.2-dist @ /usr/share/emacs/site-lisp/org/)
> > GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.6)
> >  of 2012-09-21 on allspice, modified by Debian
> >
> > Thanks for help.
>
> I don't see how this is possible.  I am also using Org-mode 7.9.2,
> here's my Org-mode version
>
>   Org-mode version 7.9.2 (release_7.9.2-603-gf8a69a @
> /home/eschulte/.emacs.d/src/org-mode/lisp/)
>
> The `org-babel-do-load-languages' function is defined in org.el, so once
> you have run (require 'org), I don't believe it is possible for this
> function to remain undefined.  Could you
>
> 1. open the org.el file manually on your system,
> 2. while visiting the file, search for the string
>    "org-babel-do-load-languages" to confirm that the function is defined
>    in that file
> 3. run `eval-buffer' while still visiting that file,
> 4. and then finally run
>
>        (org-babel-do-load-languages
>              'org-babel-load-languages
>              '((perl . t)))
>
> If the above does not work, please let me know at which stage it fails.
> If it does work, then I suspect the problem is related to something
> peculiar to your system, and is beyond my abilities to help you with.
>
> Best,
>
> --
> Eric Schulte
> http://cs.unm.edu/~eschulte
>



-- 
flav

[-- Attachment #2: Type: text/html, Size: 3770 bytes --]

Re: babel perl issue

[Achim Gratz]

Eric Schulte <schulte.eric <at> gmail.com> writes:
> I will make this change (in fact I had done this originally, but then
> didn't want to send too many patches so I compressed the commit
> history).

It just occurs to me that it would be even better if you copied the file
verbatim instead of renaming it as the very first step.  That way the history is
preserved across both files since the SHA1 for both files is the same at that
commit.  Then just reset the tree to the commit where you had edited the files 
(the first one in your two part series) and commit that set of changes.  Then
cherry-pick part two.

> Each language file will only need to (require 'ob), only a few of the
> core Babel files would actually require ob-core.  Here's a diagram of
> the require structure.

:-)

Regards,
Achim.

Re: babel perl issue

[Bastien]

Hi Eric,

Eric Schulte <schulte.eric@gmail.com> writes:

> Please let me know if I can explain anything, or if you'd like to see
> the patches before the hit the master branch.

I've read the thread carefully and I cannot clearly see what problem
we are trying to fix.  I acknowledge things can be cleaned up somehow, 
but I need to see the actual bug that we are fixing here... see my
reply to Achim in the same thread.

Thanks,

-- 
 Bastien

Re: babel perl issue

[Bastien]

Hi Achim,

Achim Gratz <Stromeko@nexgo.de> writes:

> Eric Schulte writes:
>> See http://orgmode.org/manual/Languages.html for the documentation on
>> how to activate and disable org-babel languages.
>
> That actually produces the error:
>
> File mode specification error: (void-variable org-babel-tangle-lang-exts)
>
> as the OP has found out (and I can reproduce it).
>
> The reason is that none of the ob-<lang>.el files do a (require
> ob-tangle), but try to change a defcustom in ob.tangle.el that is only
> declared, but not yet available at the time.  I've quickfixed it by
> moving the require for ob-tangle in org.el to the beginning of the file,
> but this is now relying on the fact that org is implicitly loaded for
> getting the major mode set up, so all the babel language files still
> need to be cleaned up.

I can't reproduce this.

I have a ~/emacs.el file containing

    (org-babel-do-load-languages
          'org-babel-load-languages
          '((perl . t)))

then ~$ emacs -Q -l ~/emacs.el loads correctly and
`org-babel-load-languages' is correctly set up.

Thanks for any help on reproducing the problem!

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Hi Eric,
>
> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> Please let me know if I can explain anything, or if you'd like to see
>> the patches before the hit the master branch.
>
> I've read the thread carefully and I cannot clearly see what problem
> we are trying to fix.  I acknowledge things can be cleaned up somehow, 
> but I need to see the actual bug that we are fixing here... see my
> reply to Achim in the same thread.
>

This is refactoring not bug fixing.  The most important impact is that
this will provide for simpler requires by the files implementing support
for particular languages.  Rather than having to do piecemeal requires
of those portions of the Babel infrastructure which may be needed
locally they can simple (require 'ob) and bring in all of the Babel
support as a single unit.

Prior to this change there are language specific files which are using
tangle defcustoms which have not been required and thus are not in
scope.

Finally this consolidates Babel defcustoms into ob.el where they will be
more immediately brought into scope, and are more easily maintained.

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Bastien]

Hi Eric,

Eric Schulte <schulte.eric@gmail.com> writes:

> This is refactoring not bug fixing.  The most important impact is that
> this will provide for simpler requires by the files implementing support
> for particular languages.  Rather than having to do piecemeal requires
> of those portions of the Babel infrastructure which may be needed
> locally they can simple (require 'ob) and bring in all of the Babel
> support as a single unit.

I agree with the simplification if it does not involved creating
ob-core.el and ob-customs.el.  Merging ob.el and ob-tangle.el (and
perhaps ob-eval.el and ob-comint.el) is a good simplification option
IMHO.

> Prior to this change there are language specific files which are using
> tangle defcustoms which have not been required and thus are not in
> scope.

Got it.

> Finally this consolidates Babel defcustoms into ob.el where they will be
> more immediately brought into scope, and are more easily maintained.

Yes, if you merge the files; otherwise, I'd stick to the namespace 
rule: defcustoms belong where their namespace indicate they belong.

Thanks,

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

[-- Attachment #1: Type: text/plain, Size: 884 bytes --]

Bastien <bzg@altern.org> writes:

> Hi Eric,
>
> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> This is refactoring not bug fixing.  The most important impact is that
>> this will provide for simpler requires by the files implementing support
>> for particular languages.  Rather than having to do piecemeal requires
>> of those portions of the Babel infrastructure which may be needed
>> locally they can simple (require 'ob) and bring in all of the Babel
>> support as a single unit.
>
> I agree with the simplification if it does not involved creating
> ob-core.el and ob-customs.el.  Merging ob.el and ob-tangle.el (and
> perhaps ob-eval.el and ob-comint.el) is a good simplification option
> IMHO.
>

This change *will* create ob-core.el, however I do think that is right
and proper.  Here's what the require structure of the core ob files will
look like after this change.


[-- Attachment #2: babel-requires.png --]
[-- Type: image/png, Size: 58408 bytes --]

[-- Attachment #3: Type: text/plain, Size: 1014 bytes --]


The use of a ob-core file is necessary to avoid circular requires.  If
Emacs Lisp provided for actual modules which could be split across
multiple files we could simply have every core ob file as part of the
same module.  However given the limitations of Emacs Lisp as a language,
I think this is the cleanest approach providing for both separation of
functionality across files, and simple requiring from the outside.

>
>> Finally this consolidates Babel defcustoms into ob.el where they will be
>> more immediately brought into scope, and are more easily maintained.
>
> Yes, if you merge the files; otherwise, I'd stick to the namespace 
> rule: defcustoms belong where their namespace indicate they belong.
>

Agreed.  I won't consolidate the defcustoms.  As long as we're requiring
all of the files in which they live this should not be a problem.  Also,
I agree that future maintenance is eased by keeping defcustoms alongside
the code in which they are used.

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

Bastien writes:
> I can't reproduce this.

You most likely can if you just customize org-babel-load-languages.

> I have a ~/emacs.el file containing
>
>     (org-babel-do-load-languages
>           'org-babel-load-languages
>           '((perl . t)))
>
> then ~$ emacs -Q -l ~/emacs.el loads correctly and
> `org-babel-load-languages' is correctly set up.

That only works because it pulls in org.el first.

The problem is that the Babel files can't be completely self-contained
w.r.t. their dependecies as that would create circular requires and
there exist multiple code paths (mainly via autoloads) that pull in
different parts of Org in different order.  As a basic requirement all
customization variables should become available before their uses in all
those cases, but this can't be ensured (at least not easily) with the
current structure.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Wavetables for the Terratec KOMPLEXER:
http://Synth.Stromeko.net/Downloads.html#KomplexerWaves

Re: babel perl issue

[Bastien]

Eric Schulte <schulte.eric@gmail.com> writes:

> Here's what the require structure of the core ob files will
> look like after this change.

If i read the graph correctly, merging ob.el ob-eval.el and 
ob-core.el will not create circular requires -- am I right?

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

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Bastien <bzg@altern.org> writes:

> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> Here's what the require structure of the core ob files will
>> look like after this change.
>
> If i read the graph correctly, merging ob.el ob-eval.el and 
> ob-core.el will not create circular requires -- am I right?

Not correct.  The result of such a merge would look like the following.


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With numerous circular requires.

I understand that you find the existence of an ob-core file
aesthetically unappealing.  In principle I don't disagree, but in this
particular case I do not see any preferable solution (including the
"keep things as they are" option).  If you can think of a better option
I'm open to suggestions, but if not I would like to commit this change
to master.

Thanks,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

Bastien writes:
> If i read the graph correctly, merging ob.el ob-eval.el and 
> ob-core.el will not create circular requires -- am I right?

Any attempt to merge ob.el and ob-core.el will result in circular
requires or (the status quo) incomplete requires.  I hope you are not
suggesting to put all of ob into a single file…


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

SD adaptation for Waldorf microQ V2.22R2:
http://Synth.Stromeko.net/Downloads.html#WaldorfSDada

Re: babel perl issue

[Bastien]

Achim Gratz <Stromeko@nexgo.de> writes:

> I hope you are not suggesting to put all of ob into a single file…

Actually that's a good idea!

It should be ~170ko, quite manageable (similar to org-export.el.)

In terms of features, is any of ob-{keys/tangle/table/etc.} 
useful by itself, outside ob?

How would you feel about this Eric?

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Achim Gratz <Stromeko@nexgo.de> writes:
>
>> I hope you are not suggesting to put all of ob into a single file…
>
> Actually that's a good idea!
>
> It should be ~170ko, quite manageable (similar to org-export.el.)
>
> In terms of features, is any of ob-{keys/tangle/table/etc.} 
> useful by itself, outside ob?
>
> How would you feel about this Eric?

I don't like this idea at all.

I'm already heavily using page-feed (^L) characters to navigate the
existing ob-core.el.  Combining all of the separate components of babel
into a single file would lose much needed separation and organization
and would make Babel harder to maintain.

In the absence of better ideas, I'm going to go ahead with this
refactoring.  If we do come up with a better idea at some time in the
future I'll be happy to make further changes.  Lacking that we can
always revert this change when Emacs Lisp begins to provide support for
proper modules.

Cheers,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Achim Gratz]

Bastien writes:
> Achim Gratz <Stromeko@nexgo.de> writes:
>> I hope you are not suggesting to put all of ob into a single file…
>
> Actually that's a good idea!

Uh-oh… I'm not sure why you like that, but you'd then have the same
problem inside that single file.  It's solveable, but it means you'd
need to put in lots of forward declarations or put things into a
somewhat illogical order, which is surely detrimental for
maintainability.  You might want to ask Nicolas for his opinion, he's
been having a lot of the same problems for the new exporter, for
essentially the same reason.  IIRC, it took some time to really sort
out.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Factory and User Sound Singles for Waldorf Blofeld:
http://Synth.Stromeko.net/Downloads.html#WaldorfSounds

Re: babel perl issue

[Bastien]

Eric Schulte <schulte.eric@gmail.com> writes:

> In the absence of better ideas, I'm going to go ahead with this
> refactoring.

Okay, go ahead.  But be warned that ob-core.el is not my friend :)

I'll see how we can get rid of it.

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> In the absence of better ideas, I'm going to go ahead with this
>> refactoring.
>
> Okay, go ahead.  But be warned that ob-core.el is not my friend :)
>

:)

> I'll see how we can get rid of it.

If you can find a cleaner alternative I'll be happy to help you
apply it.

Cheers,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Bastien]

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Hi Eric,

Eric Schulte <schulte.eric@gmail.com> writes:

> If you can find a cleaner alternative I'll be happy to help you
> apply it.

Here is a very crude patch for paving the way to a better solution.

I merged some small files in ob.el and got rid of ob-core.el.

The dependencies looks like this now:


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The size of ob.el is quite manageable (between the size of 
org-list.el and that of org-table.el) and I think ob-eval.el 
and friends really belongs to the core Babel library.

As for handling "large" files, I use this:

#+BEGIN_SRC emacs-lisp
(defun org-cycle-global ()
  (interactive)
  (org-cycle t))

(defun org-cycle-local ()
  (interactive)
  (save-excursion
    (move-beginning-of-line nil)
    (org-cycle)))

(global-set-key (kbd "C-M-]") 'org-cycle-global)
(global-set-key (kbd "M-]") 'org-cycle-local)
#+END_SRC

I made a video to demonstrate it quickly:
https://vimeo.com/55570133

This helps me survive in files like org.el and org-agenda.el :)

On the overall, I really think this is an improvement.  Unless 
you find a bug in the dependencies and/or find a bug in the way
dependancies are handled, I'm in favor of committing it (modulo
some work that needs to be done to reorder/clean the section a
bit.)

Let me know,


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From 995fd6a158c344f3fec71cfada54d7ad159e2c42 Mon Sep 17 00:00:00 2001
From: Bastien Guerry <bzg@altern.org>
Date: Thu, 13 Dec 2012 22:31:19 +0100
Subject: [PATCH] Crude patch to simplify dependencies.

---
 lisp/ob-comint.el |  166 ---
 lisp/ob-core.el   | 2631 ------------------------------------
 lisp/ob-eval.el   |  261 ----
 lisp/ob-exp.el    |    3 +-
 lisp/ob-keys.el   |  105 --
 lisp/ob-lob.el    |  149 ---
 lisp/ob-ref.el    |  266 ----
 lisp/ob-table.el  |    2 +-
 lisp/ob-tangle.el |  528 --------
 lisp/ob.el        | 3832 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 lisp/org-src.el   |    5 +-
 11 files changed, 3826 insertions(+), 4122 deletions(-)
 delete mode 100644 lisp/ob-comint.el
 delete mode 100644 lisp/ob-core.el
 delete mode 100644 lisp/ob-eval.el
 delete mode 100644 lisp/ob-keys.el
 delete mode 100644 lisp/ob-lob.el
 delete mode 100644 lisp/ob-ref.el
 delete mode 100644 lisp/ob-tangle.el

diff --git a/lisp/ob-comint.el b/lisp/ob-comint.el
deleted file mode 100644
index c3afd35..0000000
--- a/lisp/ob-comint.el
+++ /dev/null
@@ -1,166 +0,0 @@
-;;; ob-comint.el --- org-babel functions for interaction with comint buffers
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build on comint to ease the sending and receiving
-;; of commands and results from comint buffers.
-
-;; Note that the buffers in this file are analogous to sessions in
-;; org-babel at large.
-
-;;; Code:
-(require 'ob-core)
-(require 'org-compat)
-(require 'comint)
-(eval-when-compile (require 'cl))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function tramp-flush-directory-property "tramp" (vec directory))
-
-(defun org-babel-comint-buffer-livep (buffer)
-  "Check if BUFFER is a comint buffer with a live process."
-  (let ((buffer (if buffer (get-buffer buffer))))
-    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
-
-(defmacro org-babel-comint-in-buffer (buffer &rest body)
-  "Check BUFFER and execute BODY.
-BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
-executed inside the protection of `save-excursion' and
-`save-match-data'."
-  (declare (indent 1))
-  `(save-excursion
-     (save-match-data
-       (unless (org-babel-comint-buffer-livep ,buffer)
-         (error "Buffer %s does not exist or has no process" ,buffer))
-       (set-buffer ,buffer)
-       ,@body)))
-(def-edebug-spec org-babel-comint-in-buffer (form body))
-
-(defmacro org-babel-comint-with-output (meta &rest body)
-  "Evaluate BODY in BUFFER and return process output.
-Will wait until EOE-INDICATOR appears in the output, then return
-all process output.  If REMOVE-ECHO and FULL-BODY are present and
-non-nil, then strip echo'd body from the returned output.  META
-should be a list containing the following where the last two
-elements are optional.
-
- (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
-
-This macro ensures that the filter is removed in case of an error
-or user `keyboard-quit' during execution of body."
-  (declare (indent 1))
-  (let ((buffer (car meta))
-	(eoe-indicator (cadr meta))
-	(remove-echo (cadr (cdr meta)))
-	(full-body (cadr (cdr (cdr meta)))))
-    `(org-babel-comint-in-buffer ,buffer
-       (let ((string-buffer "") dangling-text raw)
-	 ;; setup filter
-	 (setq comint-output-filter-functions
-	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
-		     comint-output-filter-functions))
-	 (unwind-protect
-	     (progn
-	       ;; got located, and save dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (let ((start (point))
-		     (end (point-max)))
-		 (setq dangling-text (buffer-substring start end))
-		 (delete-region start end))
-	       ;; pass FULL-BODY to process
-	       ,@body
-	       ;; wait for end-of-evaluation indicator
-	       (while (progn
-			(goto-char comint-last-input-end)
-			(not (save-excursion
-			       (and (re-search-forward
-				     (regexp-quote ,eoe-indicator) nil t)
-				    (re-search-forward
-				     comint-prompt-regexp nil t)))))
-		 (accept-process-output (get-buffer-process (current-buffer)))
-		 ;; thought the following this would allow async
-		 ;; background running, but I was wrong...
-		 ;; (run-with-timer .5 .5 'accept-process-output
-		 ;; 		 (get-buffer-process (current-buffer)))
-		 )
-	       ;; replace cut dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (insert dangling-text))
-	   ;; remove filter
-	   (setq comint-output-filter-functions
-		 (cdr comint-output-filter-functions)))
-	 ;; remove echo'd FULL-BODY from input
-	 (if (and ,remove-echo ,full-body
-		  (string-match
-		   (replace-regexp-in-string
-		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
-		   string-buffer))
-	     (setq raw (substring string-buffer (match-end 0))))
-	 (split-string string-buffer comint-prompt-regexp)))))
-(def-edebug-spec org-babel-comint-with-output (form body))
-
-(defun org-babel-comint-input-command (buffer cmd)
-  "Pass CMD to BUFFER.
-The input will not be echoed."
-  (org-babel-comint-in-buffer buffer
-    (goto-char (process-mark (get-buffer-process buffer)))
-    (insert cmd)
-    (comint-send-input)
-    (org-babel-comint-wait-for-output buffer)))
-
-(defun org-babel-comint-wait-for-output (buffer)
-  "Wait until output arrives from BUFFER.
-Note: this is only safe when waiting for the result of a single
-statement (not large blocks of code)."
-  (org-babel-comint-in-buffer buffer
-    (while (progn
-             (goto-char comint-last-input-end)
-             (not (and (re-search-forward comint-prompt-regexp nil t)
-                       (goto-char (match-beginning 0))
-                       (string= (face-name (face-at-point))
-                                "comint-highlight-prompt"))))
-      (accept-process-output (get-buffer-process buffer)))))
-
-(defun org-babel-comint-eval-invisibly-and-wait-for-file
-  (buffer file string &optional period)
-  "Evaluate STRING in BUFFER invisibly.
-Don't return until FILE exists.  Code in STRING must ensure that
-FILE exists at end of evaluation."
-  (unless (org-babel-comint-buffer-livep buffer)
-    (error "Buffer %s does not exist or has no process" buffer))
-  (if (file-exists-p file) (delete-file file))
-  (process-send-string
-   (get-buffer-process buffer)
-   (if (string-match "\n$" string) string (concat string "\n")))
-  ;; From Tramp 2.1.19 the following cache flush is not necessary
-  (if (file-remote-p default-directory)
-      (let (v)
-	(with-parsed-tramp-file-name default-directory nil
-				     (tramp-flush-directory-property v ""))))
-  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
-
-(provide 'ob-comint)
-
-
-
-;;; ob-comint.el ends here
diff --git a/lisp/ob-core.el b/lisp/ob-core.el
deleted file mode 100644
index 03ac6e1..0000000
--- a/lisp/ob-core.el
+++ /dev/null
@@ -1,2631 +0,0 @@
-;;; ob-core.el --- working with code blocks in org-mode
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-eval)
-(require 'org-macs)
-(require 'org-compat)
-
-(defconst org-babel-exeext
-  (if (memq system-type '(windows-nt cygwin))
-      ".exe"
-    nil))
-(defvar org-babel-call-process-region-original)
-(defvar org-src-lang-modes)
-(defvar org-babel-library-of-babel)
-(declare-function show-all "outline" ())
-(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
-(declare-function org-mark-ring-push "org" (&optional pos buffer))
-(declare-function tramp-compat-make-temp-file "tramp-compat"
-                  (filename &optional dir-flag))
-(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
-(declare-function tramp-file-name-user "tramp" (vec))
-(declare-function tramp-file-name-host "tramp" (vec))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function org-icompleting-read "org" (&rest args))
-(declare-function org-edit-src-code "org-src"
-                  (&optional context code edit-buffer-name quietp))
-(declare-function org-edit-src-exit "org-src"  (&optional context))
-(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
-(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
-(declare-function org-outline-overlay-data "org" (&optional use-markers))
-(declare-function org-set-outline-overlay-data "org" (data))
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-entry-get "org"
-		  (pom property &optional inherit literal-nil))
-(declare-function org-make-options-regexp "org" (kwds &optional extra))
-(declare-function org-do-remove-indentation "org" (&optional n))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-cycle "org" (&optional arg))
-(declare-function org-uniquify "org" (list))
-(declare-function org-current-level "org" ())
-(declare-function org-table-import "org-table" (file arg))
-(declare-function org-add-hook "org-compat"
-		  (hook function &optional append local))
-(declare-function org-table-align "org-table" ())
-(declare-function org-table-end "org-table" (&optional table-type))
-(declare-function orgtbl-to-generic "org-table" (table params))
-(declare-function orgtbl-to-orgtbl "org-table" (table params))
-(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
-(declare-function org-babel-lob-get-info "ob-lob" nil)
-(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
-(declare-function org-babel-ref-parse "ob-ref" (assignment))
-(declare-function org-babel-ref-resolve "ob-ref" (ref))
-(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
-(declare-function org-babel-ref-headline-body "ob-ref" ())
-(declare-function org-babel-lob-execute-maybe "ob-lob" ())
-(declare-function org-number-sequence "org-compat" (from &optional to inc))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-list-parse-list "org-list" (&optional delete))
-(declare-function org-list-to-generic "org-list" (LIST PARAMS))
-(declare-function org-list-struct "org-list" ())
-(declare-function org-list-prevs-alist "org-list" (struct))
-(declare-function org-list-get-list-end "org-list" (item struct prevs))
-(declare-function org-remove-if "org" (predicate seq))
-(declare-function org-completing-read "org" (&rest args))
-(declare-function org-escape-code-in-region "org-src" (beg end))
-(declare-function org-unescape-code-in-string "org-src" (s))
-(declare-function org-table-to-lisp "org-table" (&optional txt))
-
-(defgroup org-babel nil
-  "Code block evaluation and management in `org-mode' documents."
-  :tag "Babel"
-  :group 'org)
-
-(defcustom org-confirm-babel-evaluate t
-  "Confirm before evaluation.
-Require confirmation before interactively evaluating code
-blocks in Org-mode buffers.  The default value of this variable
-is t, meaning confirmation is required for any code block
-evaluation.  This variable can be set to nil to inhibit any
-future confirmation requests.  This variable can also be set to a
-function which takes two arguments the language of the code block
-and the body of the code block.  Such a function should then
-return a non-nil value if the user should be prompted for
-execution or nil if no prompt is required.
-
-Warning: Disabling confirmation may result in accidental
-evaluation of potentially harmful code.  It may be advisable
-remove code block execution from C-c C-c as further protection
-against accidental code block evaluation.  The
-`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
-remove code block execution from the C-c C-c keybinding."
-  :group 'org-babel
-  :version "24.1"
-  :type '(choice boolean function))
-;; don't allow this variable to be changed through file settings
-(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
-
-(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
-  "Remove code block evaluation from the C-c C-c key binding."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-
-(defcustom org-babel-results-keyword "RESULTS"
-  "Keyword used to name results generated by code blocks.
-Should be either RESULTS or NAME however any capitalization may
-be used."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-start "<<"
-  "String used to begin a noweb reference in a code block.
-See also `org-babel-noweb-wrap-end'."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-end ">>"
-  "String used to end a noweb reference in a code block.
-See also `org-babel-noweb-wrap-start'."
-  :group 'org-babel
-  :type 'string)
-
-(defun org-babel-noweb-wrap (&optional regexp)
-  (concat org-babel-noweb-wrap-start
-	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
-	  org-babel-noweb-wrap-end))
-
-(defvar org-babel-src-name-regexp
-  "^[ \t]*#\\+name:[ \t]*"
-  "Regular expression used to match a source name line.")
-
-(defvar org-babel-multi-line-header-regexp
-  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
-  "Regular expression used to match multi-line header arguments.")
-
-(defvar org-babel-src-name-w-name-regexp
-  (concat org-babel-src-name-regexp
-	  "\\("
-	  org-babel-multi-line-header-regexp
-	  "\\)*"
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
-  "Regular expression matching source name lines with a name.")
-
-(defvar org-babel-src-block-regexp
-  (concat
-   ;; (1) indentation                 (2) lang
-   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
-   ;; (3) switches
-   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
-   ;; (4) header arguments
-   "\\([^\n]*\\)\n"
-   ;; (5) body
-   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
-  "Regexp used to identify code blocks.")
-
-(defvar org-babel-inline-src-block-regexp
-  (concat
-   ;; (1) replacement target (2) lang
-   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
-   ;; (3,4) (unused, headers)
-   "\\(\\|\\[\\(.*?\\)\\]\\)"
-   ;; (5) body
-   "{\\([^\f\n\r\v]+?\\)}\\)")
-  "Regexp used to identify inline src-blocks.")
-
-(defun org-babel-get-header (params key &optional others)
-  "Select only header argument of type KEY from a list.
-Optional argument OTHERS indicates that only the header that do
-not match KEY should be returned."
-  (delq nil
-	(mapcar
-	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
-	 params)))
-
-(defun org-babel-get-inline-src-block-matches()
-  "Set match data if within body of an inline source block.
-Returns non-nil if match-data set"
-  (let ((src-at-0-p (save-excursion
-		      (beginning-of-line 1)
-		      (string= "src" (thing-at-point 'word))))
-	(first-line-p (= 1 (line-number-at-pos)))
-	(orig (point)))
-    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
-			    (first-line-p "[[:punct:] \t]src_")
-			    (t "[[:punct:] \f\t\n\r\v]src_")))
-	  (lower-limit (if first-line-p
-			   nil
-			 (- (point-at-bol) 1))))
-      (save-excursion
-	(when (or (and src-at-0-p (bobp))
-		  (and (re-search-forward "}" (point-at-eol) t)
-		       (re-search-backward search-for lower-limit t)
-		       (> orig (point))))
-	  (when (looking-at org-babel-inline-src-block-regexp)
-	    t ))))))
-
-(defvar org-babel-inline-lob-one-liner-regexp)
-(defun org-babel-get-lob-one-liner-matches()
-  "Set match data if on line of an lob one liner.
-Returns non-nil if match-data set"
-  (save-excursion
-    (unless (= (point) (point-at-bol)) ;; move before inline block
-      (re-search-backward "[ \f\t\n\r\v]" nil t))
-    (if (looking-at org-babel-inline-lob-one-liner-regexp)
-	t
-      nil)))
-
-(defun org-babel-get-src-block-info (&optional light)
-  "Get information on the current source block.
-
-Optional argument LIGHT does not resolve remote variable
-references; a process which could likely result in the execution
-of other code blocks.
-
-Returns a list
- (language body header-arguments-alist switches name indent)."
-  (let ((case-fold-search t) head info name indent)
-    ;; full code block
-    (if (setq head (org-babel-where-is-src-block-head))
-	(save-excursion
-	  (goto-char head)
-	  (setq info (org-babel-parse-src-block-match))
-	  (setq indent (car (last info)))
-	  (setq info (butlast info))
-	  (while (and (forward-line -1)
-		      (looking-at org-babel-multi-line-header-regexp))
-	    (setf (nth 2 info)
-		  (org-babel-merge-params
-		   (nth 2 info)
-		   (org-babel-parse-header-arguments (match-string 1)))))
-	  (when (looking-at org-babel-src-name-w-name-regexp)
-	    (setq name (org-no-properties (match-string 3)))
-	    (when (and (match-string 5) (> (length (match-string 5)) 0))
-	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
-		    (org-babel-merge-params
-		     (mapcar
-		      (lambda (ref) (cons :var ref))
-		      (mapcar
-		       (lambda (var) ;; check that each variable is initialized
-			 (if (string-match ".+=.+" var)
-			     var
-			   (error
-			    "variable \"%s\"%s must be assigned a default value"
-			    var (if name (format " in block \"%s\"" name) ""))))
-		       (org-babel-ref-split-args (match-string 5))))
-		     (nth 2 info))))))
-      ;; inline source block
-      (when (org-babel-get-inline-src-block-matches)
-	(setq info (org-babel-parse-inline-src-block-match))))
-    ;; resolve variable references and add summary parameters
-    (when (and info (not light))
-      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
-    (when info (append info (list name indent)))))
-
-(defvar org-current-export-file) ; dynamically bound
-(defun org-babel-confirm-evaluate (info)
-  "Confirm evaluation of the code block INFO.
-This behavior can be suppressed by setting the value of
-`org-confirm-babel-evaluate' to nil, in which case all future
-interactive code block evaluations will proceed without any
-confirmation from the user.
-
-Note disabling confirmation may result in accidental evaluation
-of potentially harmful code."
-  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
-		   (when (assoc :noeval (nth 2 info)) "no")))
-         (query (cond ((equal eval "query") t)
-		      ((and (boundp 'org-current-export-file)
-			    org-current-export-file
-			    (equal eval "query-export")) t)
-                      ((functionp org-confirm-babel-evaluate)
-                       (funcall org-confirm-babel-evaluate
-                                (nth 0 info) (nth 1 info)))
-                      (t org-confirm-babel-evaluate))))
-    (if (or (equal eval "never") (equal eval "no")
-	    (and (boundp 'org-current-export-file)
-		 org-current-export-file
-		 (or (equal eval "no-export")
-		     (equal eval "never-export")))
-	    (and query
-		 (not (yes-or-no-p
-		       (format "Evaluate this%scode block%son your system? "
-			       (if info (format " %s " (nth 0 info)) " ")
-			       (if (nth 4 info)
-				   (format " (%s) " (nth 4 info)) " "))))))
-	(prog1 nil (message "Evaluation %s"
-			    (if (or (equal eval "never") (equal eval "no")
-				    (equal eval "no-export")
-				    (equal eval "never-export"))
-				"Disabled" "Aborted")))
-      t)))
-
-;;;###autoload
-(defun org-babel-execute-safely-maybe ()
-  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
-    (org-babel-execute-maybe)))
-
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
-
-;;;###autoload
-(defun org-babel-execute-maybe ()
-  (interactive)
-  (or (org-babel-execute-src-block-maybe)
-      (org-babel-lob-execute-maybe)))
-
-(defun org-babel-execute-src-block-maybe ()
-  "Conditionally execute a source block.
-Detect if this is context for a Babel src-block and if so
-then run `org-babel-execute-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-eval-wipe-error-buffer)
-	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
-
-;;;###autoload
-(defun org-babel-view-src-block-info ()
-  "Display information on the current source block.
-This includes header arguments, language and name, and is largely
-a window into the `org-babel-get-src-block-info' function."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info 'light))
-	(full (lambda (it) (> (length it) 0)))
-	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
-    (when info
-      (with-help-window (help-buffer)
-	(let ((name        (nth 4 info))
-	      (lang        (nth 0 info))
-	      (switches    (nth 3 info))
-	      (header-args (nth 2 info)))
-	  (when name            (funcall printf "Name: %s\n"     name))
-	  (when lang            (funcall printf "Lang: %s\n"     lang))
-	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
-	  (funcall printf "Header Arguments:\n")
-	  (dolist (pair (sort header-args
-			      (lambda (a b) (string< (symbol-name (car a))
-						     (symbol-name (car b))))))
-	    (when (funcall full (cdr pair))
-	      (funcall printf "\t%S%s\t%s\n"
-		       (car pair)
-		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
-		       (cdr pair)))))))))
-
-;;;###autoload
-(defun org-babel-expand-src-block-maybe ()
-  "Conditionally expand a source block.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-expand-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-expand-src-block current-prefix-arg info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-load-in-session-maybe ()
-  "Conditionally load a source block in a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-load-in-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-load-in-session current-prefix-arg info) t)
-      nil)))
-
-(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
-
-;;;###autoload
-(defun org-babel-pop-to-session-maybe ()
-  "Conditionally pop to a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-pop-to-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
-
-(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
-
-(defconst org-babel-common-header-args-w-values
-  '((cache	. ((no yes)))
-    (cmdline	. :any)
-    (colnames	. ((nil no yes)))
-    (comments	. ((no link yes org both noweb)))
-    (dir	. :any)
-    (eval	. ((never query)))
-    (exports	. ((code results both none)))
-    (file	. :any)
-    (file-desc  . :any)
-    (hlines	. ((no yes)))
-    (mkdirp	. ((yes no)))
-    (no-expand)
-    (noeval)
-    (noweb	. ((yes no tangle no-export strip-export)))
-    (noweb-ref	. :any)
-    (noweb-sep  . :any)
-    (padline	. ((yes no)))
-    (results	. ((file list vector table scalar verbatim)
-		   (raw html latex org code pp drawer)
-		   (replace silent none append prepend)
-		   (output value)))
-    (rownames	. ((no yes)))
-    (sep	. :any)
-    (session	. :any)
-    (shebang	. :any)
-    (tangle	. ((tangle yes no :any)))
-    (var	. :any)
-    (wrap       . :any)))
-
-(defconst org-babel-header-arg-names
-  (mapcar #'car org-babel-common-header-args-w-values)
-  "Common header arguments used by org-babel.
-Note that individual languages may define their own language
-specific header arguments as well.")
-
-(defvar org-babel-default-header-args
-  '((:session . "none") (:results . "replace") (:exports . "code")
-    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
-    (:padnewline . "yes"))
-  "Default arguments to use when evaluating a source block.")
-
-(defvar org-babel-default-inline-header-args
-  '((:session . "none") (:results . "replace") (:exports . "results"))
-  "Default arguments to use when evaluating an inline source block.")
-
-(defvar org-babel-data-names '("tblname" "results" "name"))
-
-(defvar org-babel-result-regexp
-  (concat "^[ \t]*#\\+"
-	  (regexp-opt org-babel-data-names t)
-	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
-  "Regular expression used to match result lines.
-If the results are associated with a hash key then the hash will
-be saved in the second match data.")
-
-(defvar org-babel-result-w-name-regexp
-  (concat org-babel-result-regexp
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
-
-(defvar org-babel-min-lines-for-block-output 10
-  "The minimum number of lines for block output.
-If number of lines of output is equal to or exceeds this
-value, the output is placed in a #+begin_example...#+end_example
-block.  Otherwise the output is marked as literal by inserting
-colons at the starts of the lines.  This variable only takes
-effect if the :results output option is in effect.")
-
-(defvar org-babel-noweb-error-langs nil
-  "Languages for which Babel will raise literate programming errors.
-List of languages for which errors should be raised when the
-source code block satisfying a noweb reference in this language
-can not be resolved.")
-
-(defvar org-babel-hash-show 4
-  "Number of initial characters to show of a hidden results hash.")
-
-(defvar org-babel-after-execute-hook nil
-  "Hook for functions to be called after `org-babel-execute-src-block'")
-
-(defun org-babel-named-src-block-regexp-for-name (name)
-  "This generates a regexp used to match a src block named NAME."
-  (concat org-babel-src-name-regexp (regexp-quote name)
-	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
-	  (substring org-babel-src-block-regexp 1)))
-
-(defun org-babel-named-data-regexp-for-name (name)
-  "This generates a regexp used to match data named NAME."
-  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
-
-;;; functions
-(defvar call-process-region)
-
-;;;###autoload
-(defun org-babel-execute-src-block (&optional arg info params)
-  "Execute the current source code block.
-Insert the results of execution into the buffer.  Source code
-execution and the collection and formatting of results can be
-controlled through a variety of header arguments.
-
-With prefix argument ARG, force re-execution even if an existing
-result cached in the buffer would otherwise have been returned.
-
-Optionally supply a value for INFO in the form returned by
-`org-babel-get-src-block-info'.
-
-Optionally supply a value for PARAMS which will be merged with
-the header arguments specified at the front of the source code
-block."
-  (interactive)
-  (let ((info (or info (org-babel-get-src-block-info))))
-    (when (org-babel-confirm-evaluate
-	   (let ((i info))
-	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
-	     i))
-      (let* ((lang (nth 0 info))
-	     (params (if params
-			 (org-babel-process-params
-			  (org-babel-merge-params (nth 2 info) params))
-		       (nth 2 info)))
-	     (cache? (and (not arg) (cdr (assoc :cache params))
-			  (string= "yes" (cdr (assoc :cache params)))))
-	     (result-params (cdr (assoc :result-params params)))
-	     (new-hash (when cache? (org-babel-sha1-hash info)))
-	     (old-hash (when cache? (org-babel-current-result-hash)))
-	     (body (setf (nth 1 info)
-			 (if (org-babel-noweb-p params :eval)
-			     (org-babel-expand-noweb-references info)
-			   (nth 1 info))))
-	     (dir (cdr (assoc :dir params)))
-	     (default-directory
-	       (or (and dir (file-name-as-directory (expand-file-name dir)))
-		   default-directory))
-	     (org-babel-call-process-region-original
-	      (if (boundp 'org-babel-call-process-region-original)
-		  org-babel-call-process-region-original
-		(symbol-function 'call-process-region)))
-	     (indent (car (last info)))
-	     result cmd)
-	(unwind-protect
-	    (let ((call-process-region
-		   (lambda (&rest args)
-		     (apply 'org-babel-tramp-handle-call-process-region args))))
-	      (let ((lang-check (lambda (f)
-				  (let ((f (intern (concat "org-babel-execute:" f))))
-				    (when (fboundp f) f)))))
-		(setq cmd
-		      (or (funcall lang-check lang)
-			  (funcall lang-check (symbol-name
-					       (cdr (assoc lang org-src-lang-modes))))
-			  (error "No org-babel-execute function for %s!" lang))))
-	      (if (and (not arg) new-hash (equal new-hash old-hash))
-		  (save-excursion ;; return cached result
-		    (goto-char (org-babel-where-is-src-block-result nil info))
-		    (end-of-line 1) (forward-char 1)
-		    (setq result (org-babel-read-result))
-		    (message (replace-regexp-in-string
-			      "%" "%%" (format "%S" result))) result)
-		(message "executing %s code block%s..."
-			 (capitalize lang)
-			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
-		(if (member "none" result-params)
-		    (progn
-		      (funcall cmd body params)
-		      (message "result silenced"))
-		(setq result
-		      ((lambda (result)
-			 (if (and (eq (cdr (assoc :result-type params)) 'value)
-				  (or (member "vector" result-params)
-				      (member "table" result-params))
-				  (not (listp result)))
-			     (list (list result)) result))
-		       (funcall cmd body params)))
-		;; if non-empty result and :file then write to :file
-		(when (cdr (assoc :file params))
-		  (when result
-		    (with-temp-file (cdr (assoc :file params))
-		      (insert
-		       (org-babel-format-result
-			result (cdr (assoc :sep (nth 2 info)))))))
-		  (setq result (cdr (assoc :file params))))
-		(org-babel-insert-result
-		 result result-params info new-hash indent lang)
-		(run-hooks 'org-babel-after-execute-hook)
-		result
-		)))
-	  (setq call-process-region 'org-babel-call-process-region-original))))))
-
-(defun org-babel-expand-body:generic (body params &optional var-lines)
-  "Expand BODY with PARAMS.
-Expand a block of code with org-babel according to its header
-arguments.  This generic implementation of body expansion is
-called for languages which have not defined their own specific
-org-babel-expand-body:lang function."
-  (mapconcat #'identity (append var-lines (list body)) "\n"))
-
-;;;###autoload
-(defun org-babel-expand-src-block (&optional arg info params)
-  "Expand the current source code block.
-Expand according to the source code block's header
-arguments and pop open the results in a preview buffer."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-	 (params (setf (nth 2 info)
-                       (sort (org-babel-merge-params (nth 2 info) params)
-                             (lambda (el1 el2) (string< (symbol-name (car el1))
-							(symbol-name (car el2)))))))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-			 (org-babel-expand-noweb-references info) (nth 1 info))))
-         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
-	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
-					  lang)))
-         (expanded
-	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
-	    (org-babel-expand-body:generic
-	     body params (and (fboundp assignments-cmd)
-			      (funcall assignments-cmd params))))))
-    (org-edit-src-code
-     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
-
-(defun org-babel-edit-distance (s1 s2)
-  "Return the edit (levenshtein) distance between strings S1 S2."
-  (let* ((l1 (length s1))
-	 (l2 (length s2))
-	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
-				(number-sequence 1 (1+ l1)))))
-	 (in (lambda (i j) (aref (aref dist i) j))))
-    (setf (aref (aref dist 0) 0) 0)
-    (dolist (j (number-sequence 1 l2))
-      (setf (aref (aref dist 0) j) j))
-    (dolist (i (number-sequence 1 l1))
-      (setf (aref (aref dist i) 0) i)
-      (dolist (j (number-sequence 1 l2))
-	(setf (aref (aref dist i) j)
-	      (min
-	       (1+ (funcall in (1- i) j))
-	       (1+ (funcall in i (1- j)))
-	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
-		  (funcall in (1- i) (1- j)))))))
-    (funcall in l1 l2)))
-
-(defun org-babel-combine-header-arg-lists (original &rest others)
-  "Combine a number of lists of header argument names and arguments."
-  (let ((results (copy-sequence original)))
-    (dolist (new-list others)
-      (dolist (arg-pair new-list)
-	(let ((header (car arg-pair))
-	      (args (cdr arg-pair)))
-	  (setq results
-		(cons arg-pair (org-remove-if
-				(lambda (pair) (equal header (car pair)))
-				results))))))
-    results))
-
-;;;###autoload
-(defun org-babel-check-src-block ()
-  "Check for misspelled header arguments in the current code block."
-  (interactive)
-  ;; TODO: report malformed code block
-  ;; TODO: report incompatible combinations of header arguments
-  ;; TODO: report uninitialized variables
-  (let ((too-close 2) ;; <- control closeness to report potential match
-	(names (mapcar #'symbol-name org-babel-header-arg-names)))
-    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
-			    (and (org-babel-where-is-src-block-head)
-				 (org-babel-parse-header-arguments
-				  (org-no-properties
-				   (match-string 4))))))
-      (dolist (name names)
-	(when (and (not (string= header name))
-		   (<= (org-babel-edit-distance header name) too-close)
-		   (not (member header names)))
-	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
-		 header name))))
-    (message "No suspicious header arguments found.")))
-
-;;;###autoload
-(defun org-babel-insert-header-arg ()
-  "Insert a header argument selecting from lists of common args and values."
-  (interactive)
-  (let* ((lang (car (org-babel-get-src-block-info 'light)))
-	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
-	 (headers (org-babel-combine-header-arg-lists
-		   org-babel-common-header-args-w-values
-		   (if (boundp lang-headers) (eval lang-headers) nil)))
-	 (arg (org-icompleting-read
-	       "Header Arg: "
-	       (mapcar
-		(lambda (header-spec) (symbol-name (car header-spec)))
-		headers))))
-    (insert ":" arg)
-    (let ((vals (cdr (assoc (intern arg) headers))))
-      (when vals
-	(insert
-	 " "
-	 (cond
-	  ((eq vals :any)
-	   (read-from-minibuffer "value: "))
-	  ((listp vals)
-	   (mapconcat
-	    (lambda (group)
-	      (let ((arg (org-icompleting-read
-			  "value: "
-			  (cons "default" (mapcar #'symbol-name group)))))
-		(if (and arg (not (string= "default" arg)))
-		    (concat arg " ")
-		  "")))
-	    vals ""))))))))
-
-;; Add support for completing-read insertion of header arguments after ":"
-(defun org-babel-header-arg-expand ()
-  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
-  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
-    (org-babel-enter-header-arg-w-completion (match-string 2))))
-
-(defun org-babel-enter-header-arg-w-completion (&optional lang)
-  "Insert header argument appropriate for LANG with completion."
-  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
-         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
-	 (headers-w-values (org-babel-combine-header-arg-lists
-			    org-babel-common-header-args-w-values lang-headers))
-         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
-         (header (org-completing-read "Header Arg: " headers))
-         (args (cdr (assoc (intern header) headers-w-values)))
-         (arg (when (and args (listp args))
-                (org-completing-read
-                 (format "%s: " header)
-                 (mapcar #'symbol-name (apply #'append args))))))
-    (insert (concat header " " (or arg "")))
-    (cons header arg)))
-
-(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
-
-;;;###autoload
-(defun org-babel-load-in-session (&optional arg info)
-  "Load the body of the current source-code block.
-Evaluate the header arguments for the source block before
-entering the session.  After loading the body this pops open the
-session."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (params (nth 2 info))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-                         (org-babel-expand-noweb-references info)
-		       (nth 1 info))))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (cmd (intern (concat "org-babel-load-session:" lang))))
-    (unless (fboundp cmd)
-      (error "No org-babel-load-session function for %s!" lang))
-    (pop-to-buffer (funcall cmd session body params))
-    (end-of-line 1)))
-
-;;;###autoload
-(defun org-babel-initiate-session (&optional arg info)
-  "Initiate session for current code block.
-If called with a prefix argument then resolve any variable
-references in the header arguments and assign these variables in
-the session.  Copy the body of the code block to the kill ring."
-  (interactive "P")
-  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-         (params (nth 2 info))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
-	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
-    (if (and (stringp session) (string= session "none"))
-	(error "This block is not using a session!"))
-    (unless (fboundp init-cmd)
-      (error "No org-babel-initiate-session function for %s!" lang))
-    (with-temp-buffer (insert (org-babel-trim body))
-                      (copy-region-as-kill (point-min) (point-max)))
-    (when arg
-      (unless (fboundp prep-cmd)
-	(error "No org-babel-prep-session function for %s!" lang))
-      (funcall prep-cmd session params))
-    (funcall init-cmd session params)))
-
-;;;###autoload
-(defun org-babel-switch-to-session (&optional arg info)
-  "Switch to the session of the current code block.
-Uses `org-babel-initiate-session' to start the session.  If called
-with a prefix argument then this is passed on to
-`org-babel-initiate-session'."
-  (interactive "P")
-  (pop-to-buffer (org-babel-initiate-session arg info))
-  (end-of-line 1))
-
-(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
-
-;;;###autoload
-(defun org-babel-switch-to-session-with-code (&optional arg info)
-  "Switch to code buffer and display session."
-  (interactive "P")
-  (let ((swap-windows
-	 (lambda ()
-	   (let ((other-window-buffer (window-buffer (next-window))))
-	     (set-window-buffer (next-window) (current-buffer))
-	     (set-window-buffer (selected-window) other-window-buffer))
-	   (other-window 1)))
-	(info (org-babel-get-src-block-info))
-	(org-src-window-setup 'reorganize-frame))
-    (save-excursion
-      (org-babel-switch-to-session arg info))
-    (org-edit-src-code)
-    (funcall swap-windows)))
-
-(defmacro org-babel-do-in-edit-buffer (&rest body)
-  "Evaluate BODY in edit buffer if there is a code block at point.
-Return t if a code block was found at point, nil otherwise."
-  `(let ((org-src-window-setup 'switch-invisibly))
-     (when (and (org-babel-where-is-src-block-head)
-		(org-edit-src-code nil nil nil))
-       (unwind-protect (progn ,@body)
-	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
-	     (org-edit-src-exit)))
-       t)))
-(def-edebug-spec org-babel-do-in-edit-buffer (body))
-
-(defun org-babel-do-key-sequence-in-edit-buffer (key)
-  "Read key sequence and execute the command in edit buffer.
-Enter a key sequence to be executed in the language major-mode
-edit buffer.  For example, TAB will alter the contents of the
-Org-mode code block according to the effect of TAB in the
-language major-mode buffer.  For languages that support
-interactive sessions, this can be used to send code from the Org
-buffer to the session for evaluation using the native major-mode
-evaluation mechanisms."
-  (interactive "kEnter key-sequence to execute in edit buffer: ")
-  (org-babel-do-in-edit-buffer
-   (call-interactively
-    (key-binding (or key (read-key-sequence nil))))))
-
-(defvar org-bracket-link-regexp)
-
-;;;###autoload
-(defun org-babel-open-src-block-result (&optional re-run)
-  "If `point' is on a src block then open the results of the
-source code block, otherwise return nil.  With optional prefix
-argument RE-RUN the source-code block is evaluated even if
-results already exist."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info)))
-    (when info
-      (save-excursion
-	;; go to the results, if there aren't any then run the block
-	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
-		       (progn (org-babel-execute-src-block)
-			      (org-babel-where-is-src-block-result))))
-	(end-of-line 1)
-	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
-	;; open the results
-	(if (looking-at org-bracket-link-regexp)
-	    ;; file results
-	    (org-open-at-point)
-	  (let ((r (org-babel-format-result
-		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
-	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
-	    (delete-region (point-min) (point-max))
-	    (insert r)))
-	t))))
-
-;;;###autoload
-(defmacro org-babel-map-src-blocks (file &rest body)
-  "Evaluate BODY forms on each source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer.  During evaluation of BODY the following local variables
-are set relative to the currently matched code block.
-
-full-block ------- string holding the entirety of the code block
-beg-block -------- point at the beginning of the code block
-end-block -------- point at the end of the matched code block
-lang ------------- string holding the language of the code block
-beg-lang --------- point at the beginning of the lang
-end-lang --------- point at the end of the lang
-switches --------- string holding the switches
-beg-switches ----- point at the beginning of the switches
-end-switches ----- point at the end of the switches
-header-args ------ string holding the header-args
-beg-header-args -- point at the beginning of the header-args
-end-header-args -- point at the end of the header-args
-body ------------- string holding the body of the code block
-beg-body --------- point at the beginning of the body
-end-body --------- point at the end of the body"
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-src-block-regexp nil t)
-	   (goto-char (match-beginning 0))
-	   (let ((full-block (match-string 0))
-		 (beg-block (match-beginning 0))
-		 (end-block (match-end 0))
-		 (lang (match-string 2))
-		 (beg-lang (match-beginning 2))
-		 (end-lang (match-end 2))
-		 (switches (match-string 3))
-		 (beg-switches (match-beginning 3))
-		 (end-switches (match-end 3))
-		 (header-args (match-string 4))
-		 (beg-header-args (match-beginning 4))
-		 (end-header-args (match-end 4))
-		 (body (match-string 5))
-		 (beg-body (match-beginning 5))
-		 (end-body (match-end 5)))
-	     ,@body
-	     (goto-char end-block))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-src-blocks (form body))
-
-;;;###autoload
-(defmacro org-babel-map-inline-src-blocks (file &rest body)
-  "Evaluate BODY forms on each inline source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-inline-src-blocks (form body))
-
-(defvar org-babel-lob-one-liner-regexp)
-
-;;;###autoload
-(defmacro org-babel-map-call-lines (file &rest body)
-  "Evaluate BODY forms on each call line in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-call-lines (form body))
-
-;;;###autoload
-(defmacro org-babel-map-executables (file &rest body)
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file"))
-	(rx (make-symbol "rx")))
-    `(let* ((,tempvar ,file)
-	    (,rx (concat "\\(" org-babel-src-block-regexp
-			 "\\|" org-babel-inline-src-block-regexp
-			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward ,rx nil t)
-	   (goto-char (match-beginning 1))
-	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-executables (form body))
-
-;;;###autoload
-(defun org-babel-execute-buffer (&optional arg)
-  "Execute source code blocks in a buffer.
-Call `org-babel-execute-src-block' on every source block in
-the current buffer."
-  (interactive "P")
-  (org-babel-eval-wipe-error-buffer)
-  (org-save-outline-visibility t
-    (org-babel-map-executables nil
-      (if (looking-at org-babel-lob-one-liner-regexp)
-          (org-babel-lob-execute-maybe)
-        (org-babel-execute-src-block arg)))))
-
-;;;###autoload
-(defun org-babel-execute-subtree (&optional arg)
-  "Execute source code blocks in a subtree.
-Call `org-babel-execute-src-block' on every source block in
-the current subtree."
-  (interactive "P")
-  (save-restriction
-    (save-excursion
-      (org-narrow-to-subtree)
-      (org-babel-execute-buffer arg)
-      (widen))))
-
-;;;###autoload
-(defun org-babel-sha1-hash (&optional info)
-  "Generate an sha1 hash based on the value of info."
-  (interactive)
-  (let ((print-level nil)
-	(info (or info (org-babel-get-src-block-info))))
-    (setf (nth 2 info)
-	  (sort (copy-sequence (nth 2 info))
-		(lambda (a b) (string< (car a) (car b)))))
-    (let* ((rm (lambda (lst)
-		 (dolist (p '("replace" "silent" "none"
-			      "append" "prepend"))
-		   (setq lst (remove p lst)))
-		 lst))
-	   (norm (lambda (arg)
-		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
-				(copy-sequence (cdr arg))
-			      (cdr arg))))
-		     (when (and v (not (and (sequencep v)
-					    (not (consp v))
-					    (= (length v) 0))))
-		       (cond
-			((and (listp v) ; lists are sorted
-			      (member (car arg) '(:result-params)))
-			 (sort (funcall rm v) #'string<))
-			((and (stringp v) ; strings are sorted
-			      (member (car arg) '(:results :exports)))
-			 (mapconcat #'identity (sort (funcall rm (split-string v))
-						     #'string<) " "))
-			(t v)))))))
-      ((lambda (hash)
-	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
-       (let ((it (format "%s-%s"
-			 (mapconcat
-			  #'identity
-			  (delq nil (mapcar (lambda (arg)
-					      (let ((normalized (funcall norm arg)))
-						(when normalized
-						  (format "%S" normalized))))
-					    (nth 2 info))) ":")
-			 (nth 1 info))))
-	 (sha1 it))))))
-
-(defun org-babel-current-result-hash ()
-  "Return the current in-buffer hash."
-  (org-babel-where-is-src-block-result)
-  (org-no-properties (match-string 3)))
-
-(defun org-babel-set-current-result-hash (hash)
-  "Set the current in-buffer hash to HASH."
-  (org-babel-where-is-src-block-result)
-  (save-excursion (goto-char (match-beginning 3))
-		  ;; (mapc #'delete-overlay (overlays-at (point)))
-		  (replace-match hash nil nil nil 3)
-		  (org-babel-hide-hash)))
-
-(defun org-babel-hide-hash ()
-  "Hide the hash in the current results line.
-Only the initial `org-babel-hash-show' characters of the hash
-will remain visible."
-  (add-to-invisibility-spec '(org-babel-hide-hash . t))
-  (save-excursion
-    (when (and (re-search-forward org-babel-result-regexp nil t)
-               (match-string 3))
-      (let* ((start (match-beginning 3))
-             (hide-start (+ org-babel-hash-show start))
-             (end (match-end 3))
-             (hash (match-string 3))
-             ov1 ov2)
-        (setq ov1 (make-overlay start hide-start))
-        (setq ov2 (make-overlay hide-start end))
-        (overlay-put ov2 'invisible 'org-babel-hide-hash)
-        (overlay-put ov1 'babel-hash hash)))))
-
-(defun org-babel-hide-all-hashes ()
-  "Hide the hash in the current buffer.
-Only the initial `org-babel-hash-show' characters of each hash
-will remain visible.  This function should be called as part of
-the `org-mode-hook'."
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (goto-char (match-beginning 0))
-      (org-babel-hide-hash)
-      (goto-char (match-end 0)))))
-(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
-
-(defun org-babel-hash-at-point (&optional point)
-  "Return the value of the hash at POINT.
-The hash is also added as the last element of the kill ring.
-This can be called with C-c C-c."
-  (interactive)
-  (let ((hash (car (delq nil (mapcar
-			      (lambda (ol) (overlay-get ol 'babel-hash))
-                              (overlays-at (or point (point))))))))
-    (when hash (kill-new hash) (message hash))))
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
-
-(defun org-babel-result-hide-spec ()
-  "Hide portions of results lines.
-Add `org-babel-hide-result' as an invisibility spec for hiding
-portions of results lines."
-  (add-to-invisibility-spec '(org-babel-hide-result . t)))
-(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
-
-(defvar org-babel-hide-result-overlays nil
-  "Overlays hiding results.")
-
-(defun org-babel-result-hide-all ()
-  "Fold all results in the current buffer."
-  (interactive)
-  (org-babel-show-result-all)
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (save-excursion (goto-char (match-beginning 0))
-                      (org-babel-hide-result-toggle-maybe)))))
-
-(defun org-babel-show-result-all ()
-  "Unfold all results in the current buffer."
-  (mapc 'delete-overlay org-babel-hide-result-overlays)
-  (setq org-babel-hide-result-overlays nil))
-
-;;;###autoload
-(defun org-babel-hide-result-toggle-maybe ()
-  "Toggle visibility of result at point."
-  (interactive)
-  (let ((case-fold-search t))
-    (if (save-excursion
-          (beginning-of-line 1)
-          (looking-at org-babel-result-regexp))
-        (progn (org-babel-hide-result-toggle)
-               t) ;; to signal that we took action
-      nil))) ;; to signal that we did not
-
-(defun org-babel-hide-result-toggle (&optional force)
-  "Toggle the visibility of the current result."
-  (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (if (re-search-forward org-babel-result-regexp nil t)
-        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
-	      (end (progn
-		     (while (looking-at org-babel-multi-line-header-regexp)
-		       (forward-line 1))
-		     (goto-char (- (org-babel-result-end) 1)) (point)))
-	      ov)
-          (if (memq t (mapcar (lambda (overlay)
-                                (eq (overlay-get overlay 'invisible)
-				    'org-babel-hide-result))
-                              (overlays-at start)))
-              (if (or (not force) (eq force 'off))
-                  (mapc (lambda (ov)
-                          (when (member ov org-babel-hide-result-overlays)
-                            (setq org-babel-hide-result-overlays
-                                  (delq ov org-babel-hide-result-overlays)))
-                          (when (eq (overlay-get ov 'invisible)
-                                    'org-babel-hide-result)
-                            (delete-overlay ov)))
-                        (overlays-at start)))
-            (setq ov (make-overlay start end))
-            (overlay-put ov 'invisible 'org-babel-hide-result)
-            ;; make the block accessible to isearch
-            (overlay-put
-             ov 'isearch-open-invisible
-             (lambda (ov)
-               (when (member ov org-babel-hide-result-overlays)
-                 (setq org-babel-hide-result-overlays
-                       (delq ov org-babel-hide-result-overlays)))
-               (when (eq (overlay-get ov 'invisible)
-                         'org-babel-hide-result)
-                 (delete-overlay ov))))
-            (push ov org-babel-hide-result-overlays)))
-      (error "Not looking at a result line"))))
-
-;; org-tab-after-check-for-cycling-hook
-(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
-;; Remove overlays when changing major mode
-(add-hook 'org-mode-hook
-	  (lambda () (org-add-hook 'change-major-mode-hook
-				   'org-babel-show-result-all 'append 'local)))
-
-(defvar org-file-properties)
-(defun org-babel-params-from-properties (&optional lang)
-  "Retrieve parameters specified as properties.
-Return an association list of any source block params which
-may be specified in the properties of the current outline entry."
-  (save-match-data
-    (let (val sym)
-      (org-babel-parse-multiple-vars
-       (delq nil
-	     (mapcar
-	      (lambda (header-arg)
-		(and (setq val (org-entry-get (point) header-arg t))
-		     (cons (intern (concat ":" header-arg))
-			   (org-babel-read val))))
-	      (mapcar
-	       #'symbol-name
-	       (mapcar
-		#'car
-		(org-babel-combine-header-arg-lists
-		 org-babel-common-header-args-w-values
-		 (progn
-		   (setq sym (intern (concat "org-babel-header-args:" lang)))
-		   (and (boundp sym) (eval sym))))))))))))
-
-(defvar org-src-preserve-indentation)
-(defun org-babel-parse-src-block-match ()
-  "Parse the results from a match of the `org-babel-src-block-regexp'."
-  (let* ((block-indentation (length (match-string 1)))
-	 (lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
-	 (switches (match-string 3))
-         (body (org-no-properties
-		(let* ((body (match-string 5))
-		       (sub-length (- (length body) 1)))
-		  (if (and (> sub-length 0)
-			   (string= "\n" (substring body sub-length)))
-		      (substring body 0 sub-length)
-		    (or body "")))))
-	 (preserve-indentation (or org-src-preserve-indentation
-				   (save-match-data
-				     (string-match "-i\\>" switches)))))
-    (list lang
-          ;; get block body less properties, protective commas, and indentation
-          (with-temp-buffer
-            (save-match-data
-              (insert (org-unescape-code-in-string body))
-	      (unless preserve-indentation (org-do-remove-indentation))
-              (buffer-string)))
-	  (org-babel-merge-params
-	   org-babel-default-header-args
-           (org-babel-params-from-properties lang)
-	   (if (boundp lang-headers) (eval lang-headers) nil)
-	   (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) ""))))
-	  switches
-	  block-indentation)))
-
-(defun org-babel-parse-inline-src-block-match ()
-  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
-  (let* ((lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
-    (list lang
-          (org-unescape-code-in-string (org-no-properties (match-string 5)))
-          (org-babel-merge-params
-           org-babel-default-inline-header-args
-           (org-babel-params-from-properties lang)
-           (if (boundp lang-headers) (eval lang-headers) nil)
-           (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) "")))))))
-
-(defun org-babel-balanced-split (string alts)
-  "Split STRING on instances of ALTS.
-ALTS is a cons of two character options where each option may be
-either the numeric code of a single character or a list of
-character alternatives.  For example to split on balanced
-instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
-  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
-	 (matched (lambda (ch last)
-		    (if (consp alts)
-			(and (funcall matches ch (cdr alts))
-			     (funcall matches last (car alts)))
-		      (funcall matches ch alts))))
-	 (balance 0) (last 0)
-	 quote partial lst)
-    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
-	    (setq balance (+ balance
-			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
-				   ((or (equal 93 ch) (equal 41 ch)) -1)
-				   (t 0))))
-	    (when (and (equal 34 ch) (not (equal 92 last)))
-	      (setq quote (not quote)))
-	    (setq partial (cons ch partial))
-	    (when (and (= balance 0) (not quote) (funcall matched ch last))
-	      (setq lst (cons (apply #'string (nreverse
-					       (if (consp alts)
-						   (cddr partial)
-						 (cdr partial))))
-			      lst))
-	      (setq partial nil))
-	    (setq last ch))
-	  (string-to-list string))
-    (nreverse (cons (apply #'string (nreverse partial)) lst))))
-
-(defun org-babel-join-splits-near-ch (ch list)
-  "Join splits where \"=\" is on either end of the split."
-  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
-	(first= (lambda (str) (= ch (aref str 0)))))
-    (reverse
-     (org-reduce (lambda (acc el)
-		   (let ((head (car acc)))
-		     (if (and head (or (funcall last= head) (funcall first= el)))
-			 (cons (concat head el) (cdr acc))
-		       (cons el acc))))
-		 list :initial-value nil))))
-
-(defun org-babel-parse-header-arguments (arg-string)
-  "Parse a string of header arguments returning an alist."
-  (when (> (length arg-string) 0)
-    (org-babel-parse-multiple-vars
-     (delq nil
-	   (mapcar
-	    (lambda (arg)
-	      (if (string-match
-		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
-		   arg)
-		  (cons (intern (match-string 1 arg))
-			(org-babel-read (org-babel-chomp (match-string 2 arg))))
-		(cons (intern (org-babel-chomp arg)) nil)))
-	    ((lambda (raw)
-	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
-	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
-
-(defun org-babel-parse-multiple-vars (header-arguments)
-  "Expand multiple variable assignments behind a single :var keyword.
-
-This allows expression of multiple variables with one :var as
-shown below.
-
-#+PROPERTY: var foo=1, bar=2"
-  (let (results)
-    (mapc (lambda (pair)
-	    (if (eq (car pair) :var)
-		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
-			(org-babel-join-splits-near-ch
-			 61 (org-babel-balanced-split (cdr pair) 32)))
-	      (push pair results)))
-	  header-arguments)
-    (nreverse results)))
-
-(defun org-babel-process-params (params)
-  "Expand variables in PARAMS and add summary parameters."
-  (let* ((processed-vars (mapcar (lambda (el)
-				   (if (consp (cdr el))
-				       (cdr el)
-				     (org-babel-ref-parse (cdr el))))
-				 (org-babel-get-header params :var)))
-	 (vars-and-names (if (and (assoc :colname-names params)
-				  (assoc :rowname-names params))
-			     (list processed-vars)
-			   (org-babel-disassemble-tables
-			    processed-vars
-			    (cdr (assoc :hlines params))
-			    (cdr (assoc :colnames params))
-			    (cdr (assoc :rownames params)))))
-	 (raw-result (or (cdr (assoc :results params)) ""))
-	 (result-params (append
-			 (split-string (if (stringp raw-result)
-					   raw-result
-					 (eval raw-result)))
-			 (cdr (assoc :result-params params)))))
-    (append
-     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
-     (list
-      (cons :colname-names (or (cdr (assoc :colname-names params))
-			       (cadr  vars-and-names)))
-      (cons :rowname-names (or (cdr (assoc :rowname-names params))
-			       (caddr vars-and-names)))
-      (cons :result-params result-params)
-      (cons :result-type  (cond ((member "output" result-params) 'output)
-				((member "value" result-params) 'value)
-				(t 'value))))
-     (org-babel-get-header params :var 'other))))
-
-;; row and column names
-(defun org-babel-del-hlines (table)
-  "Remove all 'hlines from TABLE."
-  (remove 'hline table))
-
-(defun org-babel-get-colnames (table)
-  "Return the column names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names."
-  (if (equal 'hline (nth 1 table))
-      (cons (cddr table) (car table))
-    (cons (cdr table) (car table))))
-
-(defun org-babel-get-rownames (table)
-  "Return the row names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names.  Note: this function removes any hlines in TABLE."
-  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
-	 (width (apply 'max
-		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
-	 (table (funcall trans (mapcar (lambda (row)
-					 (if (not (equal row 'hline))
-					     row
-					   (setq row '())
-					   (dotimes (n width)
-					     (setq row (cons 'hline row)))
-					   row))
-				       table))))
-    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
-		  (funcall trans (cdr table)))
-	  (remove 'hline (car table)))))
-
-(defun org-babel-put-colnames (table colnames)
-  "Add COLNAMES to TABLE if they exist."
-  (if colnames (apply 'list colnames 'hline table) table))
-
-(defun org-babel-put-rownames (table rownames)
-  "Add ROWNAMES to TABLE if they exist."
-  (if rownames
-      (mapcar (lambda (row)
-                (if (listp row)
-                    (cons (or (pop rownames) "") row)
-                  row)) table)
-    table))
-
-(defun org-babel-pick-name (names selector)
-  "Select one out of an alist of row or column names.
-SELECTOR can be either a list of names in which case those names
-will be returned directly, or an index into the list NAMES in
-which case the indexed names will be return."
-  (if (listp selector)
-      selector
-    (when names
-      (if (and selector (symbolp selector) (not (equal t selector)))
-	  (cdr (assoc selector names))
-	(if (integerp selector)
-	    (nth (- selector 1) names)
-	  (cdr (car (last names))))))))
-
-(defun org-babel-disassemble-tables (vars hlines colnames rownames)
-  "Parse tables for further processing.
-Process the variables in VARS according to the HLINES,
-ROWNAMES and COLNAMES header arguments.  Return a list consisting
-of the vars, cnames and rnames."
-  (let (cnames rnames)
-    (list
-     (mapcar
-      (lambda (var)
-        (when (listp (cdr var))
-          (when (and (not (equal colnames "no"))
-                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
-                                       (not (member 'hline (cddr (cdr var)))))))
-            (let ((both (org-babel-get-colnames (cdr var))))
-              (setq cnames (cons (cons (car var) (cdr both))
-                                 cnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and rownames (not (equal rownames "no")))
-            (let ((both (org-babel-get-rownames (cdr var))))
-              (setq rnames (cons (cons (car var) (cdr both))
-                                 rnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and hlines (not (equal hlines "yes")))
-            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
-        var)
-      vars)
-     (reverse cnames) (reverse rnames))))
-
-(defun org-babel-reassemble-table (table colnames rownames)
-  "Add column and row names to a table.
-Given a TABLE and set of COLNAMES and ROWNAMES add the names
-to the table for reinsertion to org-mode."
-  (if (listp table)
-      ((lambda (table)
-         (if (and colnames (listp (car table)) (= (length (car table))
-                                                  (length colnames)))
-             (org-babel-put-colnames table colnames) table))
-       (if (and rownames (= (length table) (length rownames)))
-           (org-babel-put-rownames table rownames) table))
-    table))
-
-(defun org-babel-where-is-src-block-head ()
-  "Find where the current source block begins.
-Return the point at the beginning of the current source
-block.  Specifically at the beginning of the #+BEGIN_SRC line.
-If the point is not on a source block then return nil."
-  (let ((initial (point)) (case-fold-search t) top bottom)
-    (or
-     (save-excursion ;; on a source name line or a #+header line
-       (beginning-of-line 1)
-       (and (or (looking-at org-babel-src-name-regexp)
-		(looking-at org-babel-multi-line-header-regexp))
-	    (progn
-	      (while (and (forward-line 1)
-			  (or (looking-at org-babel-src-name-regexp)
-			      (looking-at org-babel-multi-line-header-regexp))))
-	      (looking-at org-babel-src-block-regexp))
-            (point)))
-     (save-excursion ;; on a #+begin_src line
-       (beginning-of-line 1)
-       (and (looking-at org-babel-src-block-regexp)
-            (point)))
-     (save-excursion ;; inside a src block
-       (and
-        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
-        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
-        (< top initial) (< initial bottom)
-        (progn (goto-char top) (beginning-of-line 1)
-	       (looking-at org-babel-src-block-regexp))
-        (point))))))
-
-;;;###autoload
-(defun org-babel-goto-src-block-head ()
-  "Go to the beginning of the current code block."
-  (interactive)
-  ((lambda (head)
-     (if head (goto-char head) (error "Not currently in a code block")))
-   (org-babel-where-is-src-block-head)))
-
-;;;###autoload
-(defun org-babel-goto-named-src-block (name)
-  "Go to a named source-code block."
-  (interactive
-   (let ((completion-ignore-case t)
-	 (case-fold-search t)
-	 (under-point (thing-at-point 'line)))
-     (list (org-icompleting-read
-	    "source-block name: " (org-babel-src-block-names) nil t
-	    (cond
-	     ;; noweb
-	     ((string-match (org-babel-noweb-wrap) under-point)
-	      (let ((block-name (match-string 1 under-point)))
-		(string-match "[^(]*" block-name)
-		(match-string 0 block-name)))
-	     ;; #+call:
-	     ((string-match org-babel-lob-one-liner-regexp under-point)
-	      (let ((source-info (car (org-babel-lob-get-info))))
-		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
-		    (let ((source-name (match-string 1 source-info)))
-		      source-name))))
-	     ;; #+results:
-	     ((string-match (concat "#\\+" org-babel-results-keyword
-				    "\\:\s+\\([^\\(]*\\)") under-point)
-	      (match-string 1 under-point))
-	     ;; symbol-at-point
-	     ((and (thing-at-point 'symbol))
-	      (org-babel-find-named-block (thing-at-point 'symbol))
-	      (thing-at-point 'symbol))
-	     (""))))))
-  (let ((point (org-babel-find-named-block name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
-      (message "source-code block '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-block (name)
-  "Find a named source-code block.
-Return the location of the source block identified by source
-NAME, or nil if no such block exists.  Set match data according to
-org-babel-named-src-block-regexp."
-  (save-excursion
-    (let ((case-fold-search t)
-	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
-      (goto-char (point-min))
-      (when (or (re-search-forward regexp nil t)
-		(re-search-backward regexp nil t))
-        (match-beginning 0)))))
-
-(defun org-babel-src-block-names (&optional file)
-  "Returns the names of source blocks in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
-	(setq names (cons (match-string 3) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-goto-named-result (name)
-  "Go to a named result."
-  (interactive
-   (let ((completion-ignore-case t))
-     (list (org-icompleting-read "source-block name: "
-				 (org-babel-result-names) nil t))))
-  (let ((point (org-babel-find-named-result name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (goto-char point) (org-show-context))
-      (message "result '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-result (name &optional point)
-  "Find a named result.
-Return the location of the result named NAME in the current
-buffer or nil if no such result exists."
-  (save-excursion
-    (let ((case-fold-search t))
-      (goto-char (or point (point-min)))
-      (catch 'is-a-code-block
-	(when (re-search-forward
-	       (concat org-babel-result-regexp
-		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
-	  (when (and (string= "name" (downcase (match-string 1)))
-		     (or (beginning-of-line 1)
-			 (looking-at org-babel-src-block-regexp)
-			 (looking-at org-babel-multi-line-header-regexp)))
-	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
-	  (beginning-of-line 0) (point))))))
-
-(defun org-babel-result-names (&optional file)
-  "Returns the names of results in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-result-w-name-regexp nil t)
-	(setq names (cons (match-string 4) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-next-src-block (&optional arg)
-  "Jump to the next source block.
-With optional prefix argument ARG, jump forward ARG many source blocks."
-  (interactive "P")
-  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
-  (condition-case nil
-      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No further code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-;;;###autoload
-(defun org-babel-previous-src-block (&optional arg)
-  "Jump to the previous source block.
-With optional prefix argument ARG, jump backward ARG many source blocks."
-  (interactive "P")
-  (condition-case nil
-      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No previous code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-(defvar org-babel-load-languages)
-
-;;;###autoload
-(defun org-babel-mark-block ()
-  "Mark current src block."
-  (interactive)
-  ((lambda (head)
-     (when head
-       (save-excursion
-	 (goto-char head)
-	 (looking-at org-babel-src-block-regexp))
-       (push-mark (match-end 5) nil t)
-       (goto-char (match-beginning 5))))
-   (org-babel-where-is-src-block-head)))
-
-(defun org-babel-demarcate-block (&optional arg)
-  "Wrap or split the code in the region or on the point.
-When called from inside of a code block the current block is
-split.  When called from outside of a code block a new code block
-is created.  In both cases if the region is demarcated and if the
-region is not active then the point is demarcated."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info 'light))
-	(headers (progn (org-babel-where-is-src-block-head)
-			(match-string 4)))
-	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
-    (if info
-        (mapc
-         (lambda (place)
-           (save-excursion
-             (goto-char place)
-             (let ((lang (nth 0 info))
-                   (indent (make-string (nth 5 info) ? )))
-	       (when (string-match "^[[:space:]]*$"
-				   (buffer-substring (point-at-bol)
-						     (point-at-eol)))
-		 (delete-region (point-at-bol) (point-at-eol)))
-               (insert (concat
-			(if (looking-at "^") "" "\n")
-			indent "#+end_src\n"
-			(if arg stars indent) "\n"
-			indent "#+begin_src " lang
-			(if (> (length headers) 1)
-			    (concat " " headers) headers)
-			(if (looking-at "[\n\r]")
-			    ""
-			  (concat "\n" (make-string (current-column) ? )))))))
-	   (move-end-of-line 2))
-         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
-      (let ((start (point))
-	    (lang (org-icompleting-read "Lang: "
-					(mapcar (lambda (el) (symbol-name (car el)))
-						org-babel-load-languages)))
-	    (body (delete-and-extract-region
-		   (if (org-region-active-p) (mark) (point)) (point))))
-	(insert (concat (if (looking-at "^") "" "\n")
-			(if arg (concat stars "\n") "")
-			"#+begin_src " lang "\n"
-			body
-			(if (or (= (length body) 0)
-				(string-match "[\r\n]$" body)) "" "\n")
-			"#+end_src\n"))
-	(goto-char start) (move-end-of-line 1)))))
-
-(defvar org-babel-lob-one-liner-regexp)
-(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
-  "Find where the current source block results begin.
-Return the point at the beginning of the result of the current
-source block.  Specifically at the beginning of the results line.
-If no result exists for this block then create a results line
-following the source block."
-  (save-excursion
-    (let* ((case-fold-search t)
-	   (on-lob-line (save-excursion
-			  (beginning-of-line 1)
-			  (looking-at org-babel-lob-one-liner-regexp)))
-	   (inlinep (when (org-babel-get-inline-src-block-matches)
-		      (match-end 0)))
-	   (name (if on-lob-line
-		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
-		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
-	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
-	   found beg end)
-      (when head (goto-char head))
-      (org-with-wide-buffer
-       (setq
-	found ;; was there a result (before we potentially insert one)
-	(or
-	 inlinep
-	 (and
-	  ;; named results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it does not need to be rebuilt, then don't set end
-	  ;; - if it does need to be rebuilt then do set end
-	  name (setq beg (org-babel-find-named-result name))
-	  (prog1 beg
-	    (when (and hash (not (string= hash (match-string 3))))
-	      (goto-char beg) (setq end beg) ;; beginning of result
-	      (forward-line 1)
-	      (delete-region end (org-babel-result-end)) nil)))
-	 (and
-	  ;; unnamed results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it is found, and the hash doesn't match, delete and set end
-	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
-	  (progn (end-of-line 1)
-		 (if (eobp) (insert "\n") (forward-char 1))
-		 (setq end (point))
-		 (or (and (not name)
-			  (progn ;; unnamed results line already exists
-			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
-			    (beginning-of-line 1)
-			    (looking-at
-			     (concat org-babel-result-regexp "\n")))
-			  (prog1 (point)
-			    ;; must remove and rebuild if hash!=old-hash
-			    (if (and hash (not (string= hash (match-string 3))))
-				(prog1 nil
-				  (forward-line 1)
-				  (delete-region
-				   end (org-babel-result-end)))
-			      (setq end nil))))))))))
-      (if (not (and insert end)) found
-	(goto-char end)
-	(unless beg
-	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
-	(insert (concat
-		 (when (wholenump indent) (make-string indent ? ))
-		 "#+" org-babel-results-keyword
-		 (when hash (concat "["hash"]"))
-		 ":"
-		 (when name (concat " " name)) "\n"))
-	(unless beg (insert "\n") (backward-char))
-	(beginning-of-line 0)
-	(if hash (org-babel-hide-hash))
-	(point)))))
-
-(defvar org-block-regexp)
-(defun org-babel-read-result ()
-  "Read the result at `point' into emacs-lisp."
-  (let ((case-fold-search t) result-string)
-    (cond
-     ((org-at-table-p) (org-babel-read-table))
-     ((org-at-item-p) (org-babel-read-list))
-     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
-     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
-     ((looking-at "^[ \t]*: ")
-      (setq result-string
-	    (org-babel-trim
-	     (mapconcat (lambda (line)
-                          (if (and (> (length line) 1)
-                                   (string-match "^[ \t]*: \\(.+\\)" line))
-                              (match-string 1 line)
-                            line))
-			(split-string
-			 (buffer-substring
-                          (point) (org-babel-result-end)) "[\r\n]+")
-			"\n")))
-      (or (org-babel-number-p result-string) result-string))
-     ((looking-at org-babel-result-regexp)
-      (save-excursion (forward-line 1) (org-babel-read-result))))))
-
-(defun org-babel-read-table ()
-  "Read the table at `point' into emacs-lisp."
-  (mapcar (lambda (row)
-            (if (and (symbolp row) (equal row 'hline)) row
-              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
-          (org-table-to-lisp)))
-
-(defun org-babel-read-list ()
-  "Read the list at `point' into emacs-lisp."
-  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
-	  (mapcar #'cadr (cdr (org-list-parse-list)))))
-
-(defvar org-link-types-re)
-(defun org-babel-read-link ()
-  "Read the link at `point' into emacs-lisp.
-If the path of the link is a file path it is expanded using
-`expand-file-name'."
-  (let* ((case-fold-search t)
-         (raw (and (looking-at org-bracket-link-regexp)
-                   (org-no-properties (match-string 1))))
-         (type (and (string-match org-link-types-re raw)
-                    (match-string 1 raw))))
-    (cond
-     ((not type) (expand-file-name raw))
-     ((string= type "file")
-      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
-           (expand-file-name (match-string 2 raw))))
-     (t raw))))
-
-(defun org-babel-format-result (result &optional sep)
-  "Format RESULT for writing to file."
-  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
-    (if (listp result)
-	;; table result
-	(orgtbl-to-generic
-	 result (list :sep (or sep "\t") :fmt echo-res))
-      ;; scalar result
-      (funcall echo-res result))))
-
-(defun org-babel-insert-result
-  (result &optional result-params info hash indent lang)
-  "Insert RESULT into the current buffer.
-By default RESULT is inserted after the end of the
-current source block.  With optional argument RESULT-PARAMS
-controls insertion of results in the org-mode file.
-RESULT-PARAMS can take the following values:
-
-replace - (default option) insert results after the source block
-          replacing any previously inserted results
-
-silent -- no results are inserted into the Org-mode buffer but
-          the results are echoed to the minibuffer and are
-          ingested by Emacs (a potentially time consuming
-          process)
-
-file ---- the results are interpreted as a file path, and are
-          inserted into the buffer using the Org-mode file syntax
-
-list ---- the results are interpreted as an Org-mode list.
-
-raw ----- results are added directly to the Org-mode file.  This
-          is a good option if you code block will output org-mode
-          formatted text.
-
-drawer -- results are added directly to the Org-mode file as with
-          \"raw\", but are wrapped in a RESULTS drawer, allowing
-          them to later be replaced or removed automatically.
-
-org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
-          They are not comma-escaped when inserted, but Org syntax
-          here will be discarded when exporting the file.
-
-html ---- results are added inside of a #+BEGIN_HTML block.  This
-          is a good option if you code block will output html
-          formatted text.
-
-latex --- results are added inside of a #+BEGIN_LATEX block.
-          This is a good option if you code block will output
-          latex formatted text.
-
-code ---- the results are extracted in the syntax of the source
-          code of the language being evaluated and are added
-          inside of a #+BEGIN_SRC block with the source-code
-          language set appropriately.  Note this relies on the
-          optional LANG argument."
-  (if (stringp result)
-      (progn
-        (setq result (org-no-properties result))
-        (when (member "file" result-params)
-	  (setq result (org-babel-result-to-file
-			result (when (assoc :file-desc (nth 2 info))
-				 (or (cdr (assoc :file-desc (nth 2 info)))
-				     result))))))
-    (unless (listp result) (setq result (format "%S" result))))
-  (if (and result-params (member "silent" result-params))
-      (progn
-	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
-	result)
-    (save-excursion
-      (let* ((inlinep
-	      (save-excursion
-		(when (or (org-babel-get-inline-src-block-matches)
-			  (org-babel-get-lob-one-liner-matches))
-		  (goto-char (match-end 0))
-		  (insert (if (listp result) "\n" " "))
-		  (point))))
-	     (existing-result (unless inlinep
-				(org-babel-where-is-src-block-result
-				 t info hash indent)))
-	     (results-switches
-	      (cdr (assoc :results_switches (nth 2 info))))
-	     (visible-beg (copy-marker (point-min)))
-	     (visible-end (copy-marker (point-max)))
-	     ;; When results exist outside of the current visible
-	     ;; region of the buffer, be sure to widen buffer to
-	     ;; update them.
-	     (outside-scope-p (and existing-result
-				   (or (> visible-beg existing-result)
-				       (<= visible-end existing-result))))
-	     beg end)
-	(when (and (stringp result)  ; ensure results end in a newline
-		   (not inlinep)
-		   (> (length result) 0)
-		   (not (or (string-equal (substring result -1) "\n")
-			    (string-equal (substring result -1) "\r"))))
-	  (setq result (concat result "\n")))
-	(unwind-protect
-	    (progn
-	      (when outside-scope-p (widen))
-	      (if (not existing-result)
-		  (setq beg (or inlinep (point)))
-		(goto-char existing-result)
-		(save-excursion
-		  (re-search-forward "#" nil t)
-		  (setq indent (- (current-column) 1)))
-		(forward-line 1)
-		(setq beg (point))
-		(cond
-		 ((member "replace" result-params)
-		  (delete-region (point) (org-babel-result-end)))
-		 ((member "append" result-params)
-		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
-		 ((member "prepend" result-params)))) ; already there
-	      (setq results-switches
-		    (if results-switches (concat " " results-switches) ""))
-	      (let ((wrap (lambda (start finish &optional no-escape)
-			    (goto-char end) (insert (concat finish "\n"))
-			    (goto-char beg) (insert (concat start "\n"))
-			    (unless no-escape
-			      (org-escape-code-in-region (point) end))
-			    (goto-char end) (goto-char (point-at-eol))
-			    (setq end (point-marker))))
-		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
-		;; insert results based on type
-		(cond
-		 ;; do nothing for an empty result
-		 ((null result))
-		 ;; insert a list if preferred
-		 ((member "list" result-params)
-		  (insert
-		   (org-babel-trim
-		    (org-list-to-generic
-		     (cons 'unordered
-			   (mapcar
-			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
-			    (if (listp result) result (list result))))
-		     '(:splicep nil :istart "- " :iend "\n")))
-		   "\n"))
-		 ;; assume the result is a table if it's not a string
-		 ((funcall proper-list-p result)
-		  (goto-char beg)
-		  (insert (concat (orgtbl-to-orgtbl
-				   (if (or (eq 'hline (car result))
-					   (and (listp (car result))
-						(listp (cdr (car result)))))
-				       result (list result))
-				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
-		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
-		 ((and (listp result) (not (funcall proper-list-p result)))
-		  (insert (format "%s\n" result)))
-		 ((member "file" result-params)
-		  (when inlinep (goto-char inlinep))
-		  (insert result))
-		 (t (goto-char beg) (insert result)))
-		(when (funcall proper-list-p result) (goto-char (org-table-end)))
-		(setq end (point-marker))
-		;; possibly wrap result
-		(cond
-		 ((assoc :wrap (nth 2 info))
-		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
-		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
-		 ((member "html" result-params)
-		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
-		 ((member "latex" result-params)
-		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
-		 ((member "org" result-params)
-		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
-		 ((member "code" result-params)
-		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
-			   "#+END_SRC"))
-		 ((member "raw" result-params)
-		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
-		 ((or (member "drawer" result-params)
-		      ;; Stay backward compatible with <7.9.2
-		      (member "wrap" result-params))
-		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
-		 ((and (not (funcall proper-list-p result))
-		       (not (member "file" result-params)))
-		  (org-babel-examplize-region beg end results-switches)
-		  (setq end (point)))))
-	      ;; possibly indent the results to match the #+results line
-	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
-			 ;; in this case `table-align' does the work for us
-			 (not (and (listp result)
-				   (member "append" result-params))))
-		(indent-rigidly beg end indent))
-	      (if (null result)
-		  (if (member "value" result-params)
-		      (message "Code block returned no value.")
-		    (message "Code block produced no output."))
-		(message "Code block evaluation complete.")))
-	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
-	  (set-marker visible-beg nil)
-	  (set-marker visible-end nil))))))
-
-(defun org-babel-remove-result (&optional info)
-  "Remove the result of the current source block."
-  (interactive)
-  (let ((location (org-babel-where-is-src-block-result nil info)) start)
-    (when location
-      (setq start (- location 1))
-      (save-excursion
-        (goto-char location) (forward-line 1)
-        (delete-region start (org-babel-result-end))))))
-
-(defun org-babel-result-end ()
-  "Return the point at the end of the current set of results."
-  (save-excursion
-    (cond
-     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
-     ((org-at-item-p) (let* ((struct (org-list-struct))
-			     (prvs (org-list-prevs-alist struct)))
-			(org-list-get-list-end (point-at-bol) struct prvs)))
-     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
-      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
-	     (forward-char 1) (point)))
-     (t
-      (let ((case-fold-search t))
-	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
-	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
-				      nil t)
-		   (forward-char 1))
-	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
-	    (forward-line 1))))
-      (point)))))
-
-(defun org-babel-result-to-file (result &optional description)
-  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
-If the `default-directory' is different from the containing
-file's directory then expand relative links."
-  (when (stringp result)
-    (format "[[file:%s]%s]"
-	    (if (and default-directory
-		     buffer-file-name
-		     (not (string= (expand-file-name default-directory)
-				   (expand-file-name
-				    (file-name-directory buffer-file-name)))))
-		(expand-file-name result default-directory)
-	      result)
-	    (if description (concat "[" description "]") ""))))
-
-(defvar org-babel-capitalize-examplize-region-markers nil
-  "Make true to capitalize begin/end example markers inserted by code blocks.")
-
-(defun org-babel-examplize-region (beg end &optional results-switches)
-  "Comment out region using the inline '==' or ': ' org example quote."
-  (interactive "*r")
-  (let ((chars-between (lambda (b e)
-			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
-	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
-				     (upcase str) str))))
-    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
-	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
-	(save-excursion
-	  (goto-char beg)
-	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
-				   (delete-region beg end)))))
-      (let ((size (count-lines beg end)))
-	(save-excursion
-	  (cond ((= size 0))	      ; do nothing for an empty result
-		((< size org-babel-min-lines-for-block-output)
-		 (goto-char beg)
-		 (dotimes (n size)
-		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
-		(t
-		 (goto-char beg)
-		 (insert (if results-switches
-			     (format "%s%s\n"
-				     (funcall maybe-cap "#+begin_example")
-				     results-switches)
-			   (funcall maybe-cap "#+begin_example\n")))
-		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
-		 (insert (funcall maybe-cap "#+end_example\n")))))))))
-
-(defun org-babel-update-block-body (new-body)
-  "Update the body of the current code block to NEW-BODY."
-  (if (not (org-babel-where-is-src-block-head))
-      (error "Not in a source block")
-    (save-match-data
-      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
-    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
-
-(defun org-babel-merge-params (&rest plists)
-  "Combine all parameter association lists in PLISTS.
-Later elements of PLISTS override the values of previous elements.
-This takes into account some special considerations for certain
-parameters when merging lists."
-  (let* ((results-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
-	 (exports-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
-	 (variable-index 0)
-	 (e-merge (lambda (exclusive-groups &rest result-params)
-		    ;; maintain exclusivity of mutually exclusive parameters
-		    (let (output)
-		      (mapc (lambda (new-params)
-			      (mapc (lambda (new-param)
-				      (mapc (lambda (exclusive-group)
-					      (when (member new-param exclusive-group)
-						(mapcar (lambda (excluded-param)
-							  (setq output
-								(delete
-								 excluded-param
-								 output)))
-							exclusive-group)))
-					    exclusive-groups)
-				      (setq output (org-uniquify
-						    (cons new-param output))))
-				    new-params))
-			    result-params)
-		      output)))
-	 params results exports tangle noweb cache vars shebang comments padline)
-
-    (mapc
-     (lambda (plist)
-       (mapc
-	(lambda (pair)
-	  (case (car pair)
-	    (:var
-	     (let ((name (if (listp (cdr pair))
-			     (cadr pair)
-			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
-					      (cdr pair))
-				(intern (match-string 1 (cdr pair)))))))
-	       (if name
-		   (setq vars
-			 (append
-			  (if (member name (mapcar #'car vars))
-			      (delq nil
-				    (mapcar
-				     (lambda (p)
-				       (unless (equal (car p) name) p))
-				     vars))
-			    vars)
-			  (list (cons name pair))))
-		 ;; if no name is given and we already have named variables
-		 ;; then assign to named variables in order
-		 (if (and vars (nth variable-index vars))
-		     (prog1 (setf (cddr (nth variable-index vars))
-				  (concat (symbol-name
-					   (car (nth variable-index vars)))
-					  "=" (cdr pair)))
-		       (incf variable-index))
-		   (error "Variable \"%s\" must be assigned a default value"
-			  (cdr pair))))))
-	    (:results
-	     (setq results (funcall e-merge results-exclusive-groups
-				    results
-				    (split-string
-				     (let ((r (cdr pair)))
-				       (if (stringp r) r (eval r)))))))
-	    (:file
-	     (when (cdr pair)
-	       (setq results (funcall e-merge results-exclusive-groups
-				      results '("file")))
-	       (unless (or (member "both" exports)
-			   (member "none" exports)
-			   (member "code" exports))
-		 (setq exports (funcall e-merge exports-exclusive-groups
-					exports '("results"))))
-	       (setq params (cons pair (assq-delete-all (car pair) params)))))
-	    (:exports
-	     (setq exports (funcall e-merge exports-exclusive-groups
-				    exports (split-string (cdr pair)))))
-	    (:tangle ;; take the latest -- always overwrite
-	     (setq tangle (or (list (cdr pair)) tangle)))
-	    (:noweb
-	     (setq noweb (funcall e-merge
-				  '(("yes" "no" "tangle" "no-export"
-				     "strip-export" "eval"))
-				  noweb
-				  (split-string (or (cdr pair) "")))))
-	    (:cache
-	     (setq cache (funcall e-merge '(("yes" "no")) cache
-				  (split-string (or (cdr pair) "")))))
-	    (:padline
-	     (setq padline (funcall e-merge '(("yes" "no")) padline
-				    (split-string (or (cdr pair) "")))))
-	    (:shebang ;; take the latest -- always overwrite
-	     (setq shebang (or (list (cdr pair)) shebang)))
-	    (:comments
-	     (setq comments (funcall e-merge '(("yes" "no")) comments
-				     (split-string (or (cdr pair) "")))))
-	    (t ;; replace: this covers e.g. :session
-	     (setq params (cons pair (assq-delete-all (car pair) params))))))
-	plist))
-     plists)
-    (setq vars (reverse vars))
-    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
-    (mapc
-     (lambda (hd)
-       (let ((key (intern (concat ":" (symbol-name hd))))
-	     (val (eval hd)))
-	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
-     '(results exports tangle noweb padline cache shebang comments))
-    params))
-
-(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
-  "Set to true to use regular expressions to expand noweb references.
-This results in much faster noweb reference expansion but does
-not properly allow code blocks to inherit the \":noweb-ref\"
-header argument from buffer or subtree wide properties.")
-
-(defun org-babel-noweb-p (params context)
-  "Check if PARAMS require expansion in CONTEXT.
-CONTEXT may be one of :tangle, :export or :eval."
-  (let* (intersect
-	 (intersect (lambda (as bs)
-		      (when as
-			(if (member (car as) bs)
-			    (car as)
-			  (funcall intersect (cdr as) bs))))))
-    (funcall intersect (case context
-			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
-			 (:eval   '("yes" "no-export" "strip-export" "eval"))
-			 (:export '("yes")))
-	     (split-string (or (cdr (assoc :noweb params)) "")))))
-
-(defun org-babel-expand-noweb-references (&optional info parent-buffer)
-  "Expand Noweb references in the body of the current source code block.
-
-For example the following reference would be replaced with the
-body of the source-code block named 'example-block'.
-
-<<example-block>>
-
-Note that any text preceding the <<foo>> construct on a line will
-be interposed between the lines of the replacement text.  So for
-example if <<foo>> is placed behind a comment, then the entire
-replacement text will also be commented.
-
-This function must be called from inside of the buffer containing
-the source-code block which holds BODY.
-
-In addition the following syntax can be used to insert the
-results of evaluating the source-code block named 'example-block'.
-
-<<example-block()>>
-
-Any optional arguments can be passed to example-block by placing
-the arguments inside the parenthesis following the convention
-defined by `org-babel-lob'.  For example
-
-<<example-block(a=9)>>
-
-would set the value of argument \"a\" equal to \"9\".  Note that
-these arguments are not evaluated in the current source-code
-block but are passed literally to the \"example-block\"."
-  (let* ((parent-buffer (or parent-buffer (current-buffer)))
-         (info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-	 (ob-nww-start org-babel-noweb-wrap-start)
-	 (ob-nww-end org-babel-noweb-wrap-end)
-	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
-	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
-			    ":noweb-ref[ \t]+" "\\)"))
-         (new-body "")
-	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
-	 (c-wrap (lambda (text)
-		   (with-temp-buffer
-		     (funcall (intern (concat lang "-mode")))
-		     (comment-region (point) (progn (insert text) (point)))
-		     (org-babel-trim (buffer-string)))))
-	 index source-name evaluate prefix blocks-in-buffer)
-    (with-temp-buffer
-      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
-      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
-      (insert body) (goto-char (point-min))
-      (setq index (point))
-      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
-	(save-match-data (setf source-name (match-string 1)))
-	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
-	(save-match-data
-	  (setq prefix
-		(buffer-substring (match-beginning 0)
-				  (save-excursion
-				    (beginning-of-line 1) (point)))))
-	;; add interval to new-body (removing noweb reference)
-	(goto-char (match-beginning 0))
-	(funcall nb-add (buffer-substring index (point)))
-	(goto-char (match-end 0))
-	(setq index (point))
-	(funcall nb-add
-		 (with-current-buffer parent-buffer
-		   (save-restriction
-		     (widen)
-		     (mapconcat ;; interpose PREFIX between every line
-		      #'identity
-		      (split-string
-		       (if evaluate
-			   (let ((raw (org-babel-ref-resolve source-name)))
-			     (if (stringp raw) raw (format "%S" raw)))
-			 (or
-			  ;; retrieve from the library of babel
-			  (nth 2 (assoc (intern source-name)
-					org-babel-library-of-babel))
-			  ;; return the contents of headlines literally
-			  (save-excursion
-			    (when (org-babel-ref-goto-headline-id source-name)
-			      (org-babel-ref-headline-body)))
-			  ;; find the expansion of reference in this buffer
-			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
-				expansion)
-			    (save-excursion
-			      (goto-char (point-min))
-			      (if org-babel-use-quick-and-dirty-noweb-expansion
-				  (while (re-search-forward rx nil t)
-				    (let* ((i (org-babel-get-src-block-info 'light))
-					   (body (org-babel-expand-noweb-references i))
-					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						    "\n"))
-					   (full (if comment
-						     ((lambda (cs)
-							(concat (funcall c-wrap (car cs)) "\n"
-								body "\n"
-								(funcall c-wrap (cadr cs))))
-						      (org-babel-tangle-comment-links i))
-						   body)))
-				      (setq expansion (cons sep (cons full expansion)))))
-				(org-babel-map-src-blocks nil
-				  (let ((i (org-babel-get-src-block-info 'light)))
-				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
-						     (nth 4 i))
-						 source-name)
-				      (let* ((body (org-babel-expand-noweb-references i))
-					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						      "\n"))
-					     (full (if comment
-						       ((lambda (cs)
-							  (concat (funcall c-wrap (car cs)) "\n"
-								  body "\n"
-								  (funcall c-wrap (cadr cs))))
-							(org-babel-tangle-comment-links i))
-						     body)))
-					(setq expansion
-					      (cons sep (cons full expansion)))))))))
-			    (and expansion
-				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
-			  ;; possibly raise an error if named block doesn't exist
-			  (if (member lang org-babel-noweb-error-langs)
-			      (error "%s" (concat
-					   (org-babel-noweb-wrap source-name)
-					   "could not be resolved (see "
-					   "`org-babel-noweb-error-langs')"))
-			    "")))
-		       "[\n\r]") (concat "\n" prefix))))))
-      (funcall nb-add (buffer-substring index (point-max))))
-    new-body))
-
-(defun org-babel-script-escape (str &optional force)
-  "Safely convert tables into elisp lists."
-  (let (in-single in-double out)
-    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
-     (if (or force
-	     (and (stringp str)
-		  (> (length str) 2)
-		  (or (and (string-equal "[" (substring str 0 1))
-			   (string-equal "]" (substring str -1)))
-		      (and (string-equal "{" (substring str 0 1))
-			   (string-equal "}" (substring str -1)))
-		      (and (string-equal "(" (substring str 0 1))
-			   (string-equal ")" (substring str -1))))))
-	 (org-babel-read
-	  (concat
-	   "'"
-	   (progn
-	     (mapc
-	      (lambda (ch)
-		(setq
-		 out
-		 (case ch
-		   (91 (if (or in-double in-single) ; [
-			   (cons 91 out)
-			 (cons 40 out)))
-		   (93 (if (or in-double in-single) ; ]
-			   (cons 93 out)
-			 (cons 41 out)))
-		   (123 (if (or in-double in-single) ; {
-			    (cons 123 out)
-			  (cons 40 out)))
-		   (125 (if (or in-double in-single) ; }
-			    (cons 125 out)
-			  (cons 41 out)))
-		   (44 (if (or in-double in-single) ; ,
-			   (cons 44 out) (cons 32 out)))
-		   (39 (if in-double	; '
-			   (cons 39 out)
-			 (setq in-single (not in-single)) (cons 34 out)))
-		   (34 (if in-single	; "
-			   (append (list 34 32) out)
-			 (setq in-double (not in-double)) (cons 34 out)))
-		   (t  (cons ch out)))))
-	      (string-to-list str))
-	     (apply #'string (reverse out)))))
-       str))))
-
-(defun org-babel-read (cell &optional inhibit-lisp-eval)
-  "Convert the string value of CELL to a number if appropriate.
-Otherwise if cell looks like lisp (meaning it starts with a
-\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
-return it unmodified as a string.  Optional argument NO-LISP-EVAL
-inhibits lisp evaluation for situations in which is it not
-appropriate."
-  (if (and (stringp cell) (not (equal cell "")))
-      (or (org-babel-number-p cell)
-          (if (and (not inhibit-lisp-eval)
-		   (member (substring cell 0 1) '("(" "'" "`" "[")))
-              (eval (read cell))
-            (if (string= (substring cell 0 1) "\"")
-		(read cell)
-	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
-    cell))
-
-(defun org-babel-number-p (string)
-  "If STRING represents a number return its value."
-  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
-           (= (length (substring string (match-beginning 0)
-				 (match-end 0)))
-	      (length string)))
-      (string-to-number string)))
-
-(defun org-babel-import-elisp-from-file (file-name &optional separator)
-  "Read the results located at FILE-NAME into an elisp table.
-If the table is trivial, then return it as a scalar."
-  (let (result)
-    (save-window-excursion
-      (with-temp-buffer
-	(condition-case err
-	    (progn
-	      (org-table-import file-name separator)
-	      (delete-file file-name)
-	      (setq result (mapcar (lambda (row)
-				     (mapcar #'org-babel-string-read row))
-				   (org-table-to-lisp))))
-	  (error (message "Error reading results: %s" err) nil)))
-      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
-	  (if (consp (car result))
-	      (if (null (cdr (car result)))
-		  (caar result)
-		result)
-	    (car result))
-	result))))
-
-(defun org-babel-string-read (cell)
-  "Strip nested \"s from around strings."
-  (org-babel-read (or (and (stringp cell)
-                           (string-match "\\\"\\(.+\\)\\\"" cell)
-                           (match-string 1 cell))
-                      cell) t))
-
-(defun org-babel-reverse-string (string)
-  "Return the reverse of STRING."
-  (apply 'string (reverse (string-to-list string))))
-
-(defun org-babel-chomp (string &optional regexp)
-  "Strip trailing spaces and carriage returns from STRING.
-Default regexp used is \"[ \f\t\n\r\v]\" but can be
-overwritten by specifying a regexp as a second argument."
-  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
-    (while (and (> (length string) 0)
-                (string-match regexp (substring string -1)))
-      (setq string (substring string 0 -1)))
-    string))
-
-(defun org-babel-trim (string &optional regexp)
-  "Strip leading and trailing spaces and carriage returns from STRING.
-Like `org-babel-chomp' only it runs on both the front and back
-of the string."
-  (org-babel-chomp (org-babel-reverse-string
-                    (org-babel-chomp (org-babel-reverse-string string) regexp))
-                   regexp))
-
-(defvar org-babel-org-babel-call-process-region-original nil)
-(defun org-babel-tramp-handle-call-process-region
-  (start end program &optional delete buffer display &rest args)
-  "Use Tramp to handle `call-process-region'.
-Fixes a bug in `tramp-handle-call-process-region'."
-  (if (and (featurep 'tramp) (file-remote-p default-directory))
-      (let ((tmpfile (tramp-compat-make-temp-file "")))
-	(write-region start end tmpfile)
-	(when delete (delete-region start end))
-	(unwind-protect
-	    ;;	(apply 'call-process program tmpfile buffer display args)
-            ;; bug in tramp
-	    (apply 'process-file program tmpfile buffer display args)
-	  (delete-file tmpfile)))
-    ;; org-babel-call-process-region-original is the original emacs
-    ;; definition.  It is in scope from the let binding in
-    ;; org-babel-execute-src-block
-    (apply org-babel-call-process-region-original
-           start end program delete buffer display args)))
-
-(defun org-babel-local-file-name (file)
-  "Return the local name component of FILE."
-  (if (file-remote-p file)
-      (let (localname)
-	(with-parsed-tramp-file-name file nil
-				     localname))
-    file))
-
-(defun org-babel-process-file-name (name &optional no-quote-p)
-  "Prepare NAME to be used in an external process.
-If NAME specifies a remote location, the remote portion of the
-name is removed, since in that case the process will be executing
-remotely.  The file name is then processed by `expand-file-name'.
-Unless second argument NO-QUOTE-P is non-nil, the file name is
-additionally processed by `shell-quote-argument'"
-  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
-   (expand-file-name (org-babel-local-file-name name))))
-
-(defvar org-babel-temporary-directory)
-(unless (or noninteractive (boundp 'org-babel-temporary-directory))
-  (defvar org-babel-temporary-directory
-    (or (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory)
-	     org-babel-temporary-directory)
-	(make-temp-file "babel-" t))
-    "Directory to hold temporary files created to execute code blocks.
-Used by `org-babel-temp-file'.  This directory will be removed on
-Emacs shutdown."))
-
-(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
-  "Call the code to parse raw string results according to RESULT-PARAMS."
-  (declare (indent 1))
-  `(unless (member "none" ,result-params)
-     (if (or (member "scalar" ,result-params)
-	     (member "verbatim" ,result-params)
-	     (member "html" ,result-params)
-	     (member "code" ,result-params)
-	     (member "pp" ,result-params)
-	     (and (member "output" ,result-params)
-		  (not (member "table" ,result-params))))
-	 ,scalar-form
-       ,@table-forms)))
-
-(defun org-babel-temp-file (prefix &optional suffix)
-  "Create a temporary file in the `org-babel-temporary-directory'.
-Passes PREFIX and SUFFIX directly to `make-temp-file' with the
-value of `temporary-file-directory' temporarily set to the value
-of `org-babel-temporary-directory'."
-  (if (file-remote-p default-directory)
-      (make-temp-file
-       (concat (file-remote-p default-directory)
-	       (expand-file-name
-		prefix temporary-file-directory)
-	       nil suffix))
-    (let ((temporary-file-directory
-	   (or (and (boundp 'org-babel-temporary-directory)
-		    (file-exists-p org-babel-temporary-directory)
-		    org-babel-temporary-directory)
-	       temporary-file-directory)))
-      (make-temp-file prefix nil suffix))))
-
-(defun org-babel-remove-temporary-directory ()
-  "Remove `org-babel-temporary-directory' on Emacs shutdown."
-  (when (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory))
-    ;; taken from `delete-directory' in files.el
-    (condition-case nil
-	(progn
-	  (mapc (lambda (file)
-		  ;; This test is equivalent to
-		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
-		  ;; but more efficient
-		  (if (eq t (car (file-attributes file)))
-		      (delete-directory file)
-		    (delete-file file)))
-		;; We do not want to delete "." and "..".
-		(directory-files org-babel-temporary-directory 'full
-				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
-	  (delete-directory org-babel-temporary-directory))
-      (error
-       (message "Failed to remove temporary Org-babel directory %s"
-		(if (boundp 'org-babel-temporary-directory)
-		    org-babel-temporary-directory
-		  "[directory not defined]"))))))
-
-(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
-
-(provide 'ob-core)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-core.el ends here
diff --git a/lisp/ob-eval.el b/lisp/ob-eval.el
deleted file mode 100644
index ddad067..0000000
--- a/lisp/ob-eval.el
+++ /dev/null
@@ -1,261 +0,0 @@
-;;; ob-eval.el --- org-babel functions for external code evaluation
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build existing Emacs support for executing external
-;; shell commands.
-
-;;; Code:
-(eval-when-compile (require 'cl))
-
-(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
-
-(defun org-babel-eval-error-notify (exit-code stderr)
-  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
-  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
-    (with-current-buffer buf
-      (goto-char (point-max))
-      (save-excursion (insert stderr)))
-    (display-buffer buf))
-  (message "Babel evaluation exited with code %S" exit-code))
-
-(defun org-babel-eval (cmd body)
-  "Run CMD on BODY.
-If CMD succeeds then return its results, otherwise display
-STDERR with `org-babel-eval-error-notify'."
-  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
-    (with-current-buffer err-buff (erase-buffer))
-    (with-temp-buffer
-      (insert body)
-      (setq exit-code
-	    (org-babel-shell-command-on-region
-	     (point-min) (point-max) cmd t 'replace err-buff))
-      (if (or (not (numberp exit-code)) (> exit-code 0))
-	  (progn
-	    (with-current-buffer err-buff
-	      (org-babel-eval-error-notify exit-code (buffer-string)))
-	    nil)
-	(buffer-string)))))
-
-(defun org-babel-eval-read-file (file)
-  "Return the contents of FILE as a string."
-  (with-temp-buffer (insert-file-contents file)
-		    (buffer-string)))
-
-(defun org-babel-shell-command-on-region (start end command
-						&optional output-buffer replace
-						error-buffer display-error-buffer)
-  "Execute COMMAND in an inferior shell with region as input.
-
-Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
-
-Normally display output (if any) in temp buffer `*Shell Command Output*';
-Prefix arg means replace the region with it.  Return the exit code of
-COMMAND.
-
-To specify a coding system for converting non-ASCII characters in
-the input and output to the shell command, use
-\\[universal-coding-system-argument] before this command.  By
-default, the input (from the current buffer) is encoded in the
-same coding system that will be used to save the file,
-`buffer-file-coding-system'.  If the output is going to replace
-the region, then it is decoded from that same coding system.
-
-The noninteractive arguments are START, END, COMMAND,
-OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
-Noninteractive callers can specify coding systems by binding
-`coding-system-for-read' and `coding-system-for-write'.
-
-If the command generates output, the output may be displayed
-in the echo area or in a buffer.
-If the output is short enough to display in the echo area
-\(determined by the variable `max-mini-window-height' if
-`resize-mini-windows' is non-nil), it is shown there.  Otherwise
-it is displayed in the buffer `*Shell Command Output*'.  The output
-is available in that buffer in both cases.
-
-If there is output and an error, a message about the error
-appears at the end of the output.
-
-If there is no output, or if output is inserted in the current buffer,
-then `*Shell Command Output*' is deleted.
-
-If the optional fourth argument OUTPUT-BUFFER is non-nil,
-that says to put the output in some other buffer.
-If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
-If OUTPUT-BUFFER is not a buffer and not nil,
-insert output in the current buffer.
-In either case, the output is inserted after point (leaving mark after it).
-
-If REPLACE, the optional fifth argument, is non-nil, that means insert
-the output in place of text from START to END, putting point and mark
-around it.
-
-If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
-or buffer name to which to direct the command's standard error output.
-If it is nil, error output is mingled with regular output.
-If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
-were any errors.  (This is always t, interactively.)
-In an interactive call, the variable `shell-command-default-error-buffer'
-specifies the value of ERROR-BUFFER."
-  (interactive (let (string)
-		 (unless (mark)
-		   (error "The mark is not set now, so there is no region"))
-		 ;; Do this before calling region-beginning
-		 ;; and region-end, in case subprocess output
-		 ;; relocates them while we are in the minibuffer.
-		 (setq string (read-shell-command "Shell command on region: "))
-		 ;; call-interactively recognizes region-beginning and
-		 ;; region-end specially, leaving them in the history.
-		 (list (region-beginning) (region-end)
-		       string
-		       current-prefix-arg
-		       current-prefix-arg
-		       shell-command-default-error-buffer
-		       t)))
-  (let ((error-file
-	 (if error-buffer
-	     (make-temp-file
-	      (expand-file-name "scor"
-                                (if (featurep 'xemacs)
-                                    (temp-directory)
-                                  temporary-file-directory)))
-	   nil))
-	exit-status)
-    (if (or replace
-	    (and output-buffer
-		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
-	;; Replace specified region with output from command.
-	(let ((swap (and replace (< start end))))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (goto-char start)
-	  (and replace (push-mark (point) 'nomsg))
-	  (setq exit-status
-		(call-process-region start end shell-file-name t
-				     (if error-file
-					 (list output-buffer error-file)
-				       t)
-				     nil shell-command-switch command))
-	  ;; It is rude to delete a buffer which the command is not using.
-	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
-	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
-	  ;; 	 (kill-buffer shell-buffer)))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (and replace swap (exchange-point-and-mark)))
-      ;; No prefix argument: put the output in a temp buffer,
-      ;; replacing its entire contents.
-      (let ((buffer (get-buffer-create
-		     (or output-buffer "*Shell Command Output*"))))
-	(unwind-protect
-	    (if (eq buffer (current-buffer))
-		;; If the input is the same buffer as the output,
-		;; delete everything but the specified region,
-		;; then replace that region with the output.
-		(progn (setq buffer-read-only nil)
-		       (delete-region (max start end) (point-max))
-		       (delete-region (point-min) (min start end))
-		       (setq exit-status
-			     (call-process-region (point-min) (point-max)
-						  shell-file-name t
-						  (if error-file
-						      (list t error-file)
-						    t)
-						  nil shell-command-switch
-						  command)))
-	      ;; Clear the output buffer, then run the command with
-	      ;; output there.
-	      (let ((directory default-directory))
-		(with-current-buffer buffer
-		  (setq buffer-read-only nil)
-		  (if (not output-buffer)
-		      (setq default-directory directory))
-		  (erase-buffer)))
-	      (setq exit-status
-		    (call-process-region start end shell-file-name nil
-					 (if error-file
-					     (list buffer error-file)
-					   buffer)
-					 nil shell-command-switch command)))
-	  ;; Report the output.
-	  (with-current-buffer buffer
-	    (setq mode-line-process
-		  (cond ((null exit-status)
-			 " - Error")
-			((stringp exit-status)
-			 (format " - Signal [%s]" exit-status))
-			((not (equal 0 exit-status))
-			 (format " - Exit [%d]" exit-status)))))
-	  (if (with-current-buffer buffer (> (point-max) (point-min)))
-	      ;; There's some output, display it
-	      (display-message-or-buffer buffer)
-	    ;; No output; error?
-	    (let ((output
-		   (if (and error-file
-			    (< 0 (nth 7 (file-attributes error-file))))
-		       "some error output"
-		     "no output")))
-	      (cond ((null exit-status)
-		     (message "(Shell command failed with error)"))
-		    ((equal 0 exit-status)
-		     (message "(Shell command succeeded with %s)"
-			      output))
-		    ((stringp exit-status)
-		     (message "(Shell command killed by signal %s)"
-			      exit-status))
-		    (t
-		     (message "(Shell command failed with code %d and %s)"
-			      exit-status output))))
-	    ;; Don't kill: there might be useful info in the undo-log.
-	    ;; (kill-buffer buffer)
-	    ))))
-
-    (when (and error-file (file-exists-p error-file))
-      (if (< 0 (nth 7 (file-attributes error-file)))
-	  (with-current-buffer (get-buffer-create error-buffer)
-	    (let ((pos-from-end (- (point-max) (point))))
-	      (or (bobp)
-		  (insert "\f\n"))
-	      ;; Do no formatting while reading error file,
-	      ;; because that can run a shell command, and we
-	      ;; don't want that to cause an infinite recursion.
-	      (format-insert-file error-file nil)
-	      ;; Put point after the inserted errors.
-	      (goto-char (- (point-max) pos-from-end)))
-	    (and display-error-buffer
-		 (display-buffer (current-buffer)))))
-      (delete-file error-file))
-    exit-status))
-
-(defun org-babel-eval-wipe-error-buffer ()
-  "Delete the contents of the Org code block error buffer.
-This buffer is named by `org-babel-error-buffer-name'."
-  (when (get-buffer org-babel-error-buffer-name)
-    (with-current-buffer org-babel-error-buffer-name
-      (delete-region (point-min) (point-max)))))
-
-(provide 'ob-eval)
-
-
-
-;;; ob-eval.el ends here
diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index e2be94d..03f2f5f 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -23,11 +23,10 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
-(defvar obe-marker nil)
 (defvar org-current-export-file)
 (defvar org-babel-lob-one-liner-regexp)
 (defvar org-babel-ref-split-regexp)
diff --git a/lisp/ob-keys.el b/lisp/ob-keys.el
deleted file mode 100644
index 283c2b5..0000000
--- a/lisp/ob-keys.el
+++ /dev/null
@@ -1,105 +0,0 @@
-;;; ob-keys.el --- key bindings for org-babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Add org-babel keybindings to the org-mode keymap for exposing
-;; org-babel functions.  These will all share a common prefix.  See
-;; the value of `org-babel-key-bindings' for a list of interactive
-;; functions and their associated keys.
-
-;;; Code:
-(require 'ob-core)
-
-(defvar org-babel-key-prefix "\C-c\C-v"
-  "The key prefix for Babel interactive key-bindings.
-See `org-babel-key-bindings' for the list of interactive babel
-functions which are assigned key bindings, and see
-`org-babel-map' for the actual babel keymap.")
-
-(defvar org-babel-map (make-sparse-keymap)
-  "The keymap for interactive Babel functions.")
-
-;;;###autoload
-(defun org-babel-describe-bindings ()
-  "Describe all keybindings behind `org-babel-key-prefix'."
-  (interactive)
-  (describe-bindings org-babel-key-prefix))
-
-(defvar org-babel-key-bindings
-  '(("p" . org-babel-previous-src-block)
-    ("\C-p" . org-babel-previous-src-block)
-    ("n" . org-babel-next-src-block)
-    ("\C-n" . org-babel-next-src-block)
-    ("e" . org-babel-execute-maybe)
-    ("\C-e" . org-babel-execute-maybe)
-    ("o" . org-babel-open-src-block-result)
-    ("\C-o" . org-babel-open-src-block-result)
-    ("\C-v" . org-babel-expand-src-block)
-    ("v" . org-babel-expand-src-block)
-    ("u" . org-babel-goto-src-block-head)
-    ("\C-u" . org-babel-goto-src-block-head)
-    ("g" . org-babel-goto-named-src-block)
-    ("r" . org-babel-goto-named-result)
-    ("\C-r" . org-babel-goto-named-result)
-    ("\C-b" . org-babel-execute-buffer)
-    ("b" . org-babel-execute-buffer)
-    ("\C-s" . org-babel-execute-subtree)
-    ("s" . org-babel-execute-subtree)
-    ("\C-d" . org-babel-demarcate-block)
-    ("d" . org-babel-demarcate-block)
-    ("\C-t" . org-babel-tangle)
-    ("t" . org-babel-tangle)
-    ("\C-f" . org-babel-tangle-file)
-    ("f" . org-babel-tangle-file)
-    ("\C-c" . org-babel-check-src-block)
-    ("c" . org-babel-check-src-block)
-    ("\C-j" . org-babel-insert-header-arg)
-    ("j" . org-babel-insert-header-arg)
-    ("\C-l" . org-babel-load-in-session)
-    ("l" . org-babel-load-in-session)
-    ("\C-i" . org-babel-lob-ingest)
-    ("i" . org-babel-lob-ingest)
-    ("\C-I" . org-babel-view-src-block-info)
-    ("I" . org-babel-view-src-block-info)
-    ("\C-z" . org-babel-switch-to-session)
-    ("z" . org-babel-switch-to-session-with-code)
-    ("\C-a" . org-babel-sha1-hash)
-    ("a" . org-babel-sha1-hash)
-    ("h" . org-babel-describe-bindings)
-    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("\C-\M-h" . org-babel-mark-block))
-  "Alist of key bindings and interactive Babel functions.
-This list associates interactive Babel functions
-with keys.  Each element of this list will add an entry to the
-`org-babel-map' using the letter key which is the `car' of the
-a-list placed behind the generic `org-babel-key-prefix'.")
-
-(provide 'ob-keys)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-keys.el ends here
diff --git a/lisp/ob-lob.el b/lisp/ob-lob.el
deleted file mode 100644
index 5c21db7..0000000
--- a/lisp/ob-lob.el
+++ /dev/null
@@ -1,149 +0,0 @@
-;;; ob-lob.el --- functions supporting the Library of Babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-core)
-(require 'ob-table)
-
-(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
-
-(defvar org-babel-library-of-babel nil
-  "Library of source-code blocks.
-This is an association list.  Populate the library by adding
-files to `org-babel-lob-files'.")
-
-(defcustom org-babel-lob-files '()
-  "Files used to populate the `org-babel-library-of-babel'.
-To add files to this list use the `org-babel-lob-ingest' command."
-  :group 'org-babel
-  :version "24.1"
-  :type 'list)
-
-(defvar org-babel-default-lob-header-args '((:exports . "results"))
-  "Default header arguments to use when exporting #+lob/call lines.")
-
-(defun org-babel-lob-ingest (&optional file)
-  "Add all named source-blocks defined in FILE to
-`org-babel-library-of-babel'."
-  (interactive "fFile: ")
-  (let ((lob-ingest-count 0))
-    (org-babel-map-src-blocks file
-      (let* ((info (org-babel-get-src-block-info 'light))
-	     (source-name (nth 4 info)))
-	(when source-name
-	  (setq source-name (intern source-name)
-		org-babel-library-of-babel
-		(cons (cons source-name info)
-		      (assq-delete-all source-name org-babel-library-of-babel))
-		lob-ingest-count (1+ lob-ingest-count)))))
-    (message "%d src block%s added to Library of Babel"
-	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
-    lob-ingest-count))
-
-(defconst org-babel-block-lob-one-liner-regexp
-  (concat
-   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
-  "Regexp to match non-inline calls to predefined source block functions.")
-
-(defconst org-babel-inline-lob-one-liner-regexp
-  (concat
-   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
-  "Regexp to match inline calls to predefined source block functions.")
-
-(defconst org-babel-lob-one-liner-regexp
-  (concat "\\(" org-babel-block-lob-one-liner-regexp
-	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
-  "Regexp to match calls to predefined source block functions.")
-
-;; functions for executing lob one-liners
-
-;;;###autoload
-(defun org-babel-lob-execute-maybe ()
-  "Execute a Library of Babel source block, if appropriate.
-Detect if this is context for a Library Of Babel source block and
-if so then run the appropriate source block from the Library."
-  (interactive)
-  (let ((info (org-babel-lob-get-info)))
-    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
-	(progn (org-babel-lob-execute info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-lob-get-info ()
-  "Return a Library of Babel function call as a string."
-  (let ((case-fold-search t)
-	(nonempty (lambda (a b)
-		    (let ((it (match-string a)))
-		      (if (= (length it) 0) (match-string b) it)))))
-    (save-excursion
-      (beginning-of-line 1)
-      (when (looking-at org-babel-lob-one-liner-regexp)
-	(append
-	 (mapcar #'org-no-properties
-		 (list
-		  (format "%s%s(%s)%s"
-			  (funcall nonempty 3 12)
-			  (if (not (= 0 (length (funcall nonempty 5 14))))
-			      (concat "[" (funcall nonempty 5 14) "]") "")
-			  (or (funcall nonempty 7 16) "")
-			  (or (funcall nonempty 8 19) ""))
-		  (funcall nonempty 9 18)))
-	 (list (length (if (= (length (match-string 12)) 0)
-			   (match-string 2) (match-string 11)))))))))
-
-(defun org-babel-lob-execute (info)
-  "Execute the lob call specified by INFO."
-  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
-	 (pre-params (org-babel-merge-params
-		      org-babel-default-header-args
-		      (org-babel-params-from-properties)
-		      (org-babel-parse-header-arguments
-		       (org-no-properties
-			(concat ":var results="
-				(mapconcat #'identity (butlast info) " "))))))
-	 (pre-info (funcall mkinfo pre-params))
-	 (cache? (and (cdr (assoc :cache pre-params))
-		      (string= "yes" (cdr (assoc :cache pre-params)))))
-	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
-	 (old-hash (when cache? (org-babel-current-result-hash))))
-    (if (and cache? (equal new-hash old-hash))
-	(save-excursion (goto-char (org-babel-where-is-src-block-result))
-			(forward-line 1)
-			(message "%S" (org-babel-read-result)))
-      (prog1 (org-babel-execute-src-block
-	      nil (funcall mkinfo (org-babel-process-params pre-params)))
-	;; update the hash
-	(when new-hash (org-babel-set-current-result-hash new-hash))))))
-
-(provide 'ob-lob)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-lob.el ends here
diff --git a/lisp/ob-ref.el b/lisp/ob-ref.el
deleted file mode 100644
index 1149111..0000000
--- a/lisp/ob-ref.el
+++ /dev/null
@@ -1,266 +0,0 @@
-;;; ob-ref.el --- org-babel functions for referencing external data
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Functions for referencing data from the header arguments of a
-;; org-babel block.  The syntax of such a reference should be
-
-;;   #+VAR: variable-name=file:resource-id
-
-;; - variable-name :: the name of the variable to which the value
-;;                    will be assigned
-
-;; - file :: path to the file containing the resource, or omitted if
-;;           resource is in the current file
-
-;; - resource-id :: the id or name of the resource
-
-;; So an example of a simple src block referencing table data in the
-;; same file would be
-
-;;  #+TBLNAME: sandbox
-;;  | 1 |         2 | 3 |
-;;  | 4 | org-babel | 6 |
-;;
-;;  #+begin_src emacs-lisp :var table=sandbox
-;;    (message table)
-;;  #+end_src
-
-;;; Code:
-(require 'ob-core)
-(eval-when-compile
-  (require 'cl))
-
-(declare-function org-remove-if-not "org" (predicate seq))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-count "org" (CL-ITEM CL-SEQ))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
-(declare-function org-id-find-id-file "org-id" (id))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-pop-to-buffer-same-window
-		  "org-compat" (&optional buffer-or-name norecord label))
-
-(defvar org-babel-ref-split-regexp
-  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
-
-(defvar org-babel-update-intermediate nil
-  "Update the in-buffer results of code blocks executed to resolve references.")
-
-(defun org-babel-ref-parse (assignment)
-  "Parse a variable ASSIGNMENT in a header argument.
-If the right hand side of the assignment has a literal value
-return that value, otherwise interpret as a reference to an
-external resource and find its value using
-`org-babel-ref-resolve'.  Return a list with two elements.  The
-first element of the list will be the name of the variable, and
-the second will be an emacs-lisp representation of the value of
-the variable."
-  (when (string-match org-babel-ref-split-regexp assignment)
-    (let ((var (match-string 1 assignment))
-	  (ref (match-string 2 assignment)))
-      (cons (intern var)
-	    (let ((out (org-babel-read ref)))
-	      (if (equal out ref)
-		  (if (string-match "^\".*\"$" ref)
-		      (read ref)
-		    (org-babel-ref-resolve ref))
-		out))))))
-
-(defun org-babel-ref-goto-headline-id (id)
-  (goto-char (point-min))
-  (let ((rx (regexp-quote id)))
-    (or (re-search-forward
-	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
-	(let* ((file (org-id-find-id-file id))
-	       (m (when file (org-id-find-id-in-file id file 'marker))))
-	  (when (and file m)
-	    (message "file:%S" file)
-	    (org-pop-to-buffer-same-window (marker-buffer m))
-	    (goto-char m)
-	    (move-marker m nil)
-	    (org-show-context)
-	    t)))))
-
-(defun org-babel-ref-headline-body ()
-  (save-restriction
-    (org-narrow-to-subtree)
-    (buffer-substring
-     (save-excursion (goto-char (point-min))
-		     (forward-line 1)
-		     (when (looking-at "[ \t]*:PROPERTIES:")
-		       (re-search-forward ":END:" nil)
-		       (forward-char))
-		     (point))
-     (point-max))))
-
-(defvar org-babel-library-of-babel)
-(defun org-babel-ref-resolve (ref)
-  "Resolve the reference REF and return its value."
-  (save-window-excursion
-    (save-excursion
-      (let ((case-fold-search t)
-	    type args new-refere new-header-args new-referent result
-	    lob-info split-file split-ref index index-row index-col id)
-	;; if ref is indexed grab the indices -- beware nested indices
-	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
-		   (let ((str (substring ref 0 (match-beginning 0))))
-		     (= (org-count ?( str) (org-count ?) str))))
-	  (setq index (match-string 1 ref))
-	  (setq ref (substring ref 0 (match-beginning 0))))
-	;; assign any arguments to pass to source block
-	(when (string-match
-	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
-	  (setq new-refere      (match-string 1 ref))
-	  (setq new-header-args (match-string 3 ref))
-	  (setq new-referent    (match-string 5 ref))
-	  (when (> (length new-refere) 0)
-	    (when (> (length new-referent) 0)
-	      (setq args (mapcar (lambda (ref) (cons :var ref))
-				 (org-babel-ref-split-args new-referent))))
-	    (when (> (length new-header-args) 0)
-	      (setq args (append (org-babel-parse-header-arguments
-				  new-header-args) args)))
-	    (setq ref new-refere)))
-	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
-	  (setq split-file (match-string 1 ref))
-	  (setq split-ref (match-string 2 ref))
-	  (find-file split-file) (setq ref split-ref))
-	(save-restriction
-	  (widen)
-	  (goto-char (point-min))
-	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
-		    (res-rx (org-babel-named-data-regexp-for-name ref)))
-		;; goto ref in the current buffer
-		(or
-		 ;; check for code blocks
-		 (re-search-forward src-rx nil t)
-		 ;; check for named data
-		 (re-search-forward res-rx nil t)
-		 ;; check for local or global headlines by id
-		 (setq id (org-babel-ref-goto-headline-id ref))
-		 ;; check the Library of Babel
-		 (setq lob-info (cdr (assoc (intern ref)
-					    org-babel-library-of-babel)))))
-	      (unless (or lob-info id) (goto-char (match-beginning 0)))
-	    ;; ;; TODO: allow searching for names in other buffers
-	    ;; (setq id-loc (org-id-find ref 'marker)
-	    ;;       buffer (marker-buffer id-loc)
-	    ;;       loc (marker-position id-loc))
-	    ;; (move-marker id-loc nil)
-	    (error "Reference '%s' not found in this buffer" ref))
-	  (cond
-	   (lob-info (setq type 'lob))
-	   (id (setq type 'id))
-	   ((and (looking-at org-babel-src-name-regexp)
-		 (save-excursion
-		   (forward-line 1)
-		   (or (looking-at org-babel-src-block-regexp)
-		       (looking-at org-babel-multi-line-header-regexp))))
-	    (setq type 'source-block))
-	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
-		(forward-line 1)
-		(beginning-of-line)
-		(if (or (= (point) (point-min)) (= (point) (point-max)))
-		    (error "Reference not found")))))
-	  (let ((params (append args '((:results . "silent")))))
-	    (setq result
-		  (case type
-		    (results-line (org-babel-read-result))
-		    (table        (org-babel-read-table))
-		    (list         (org-babel-read-list))
-		    (file         (org-babel-read-link))
-		    (source-block (org-babel-execute-src-block
-				   nil nil (if org-babel-update-intermediate
-					       nil params)))
-		    (lob          (org-babel-execute-src-block
-				   nil lob-info params))
-		    (id           (org-babel-ref-headline-body)))))
-	  (if (symbolp result)
-	      (format "%S" result)
-	    (if (and index (listp result))
-		(org-babel-ref-index-list index result)
-	      result)))))))
-
-(defun org-babel-ref-index-list (index lis)
-  "Return the subset of LIS indexed by INDEX.
-
-Indices are 0 based and negative indices count from the end of
-LIS, so 0 references the first element of LIS and -1 references
-the last.  If INDEX is separated by \",\"s then each \"portion\"
-is assumed to index into the next deepest nesting or dimension.
-
-A valid \"portion\" can consist of either an integer index, two
-integers separated by a \":\" in which case the entire range is
-returned, or an empty string or \"*\" both of which are
-interpreted to mean the entire range and as such are equivalent
-to \"0:-1\"."
-  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
-      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
-	     (lgth (length lis))
-	     (portion (match-string 1 index))
-	     (remainder (substring index (match-end 0)))
-	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
-	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
-	(funcall
-	 open
-	 (mapcar
-	  (lambda (sub-lis)
-	    (if (listp sub-lis)
-		(org-babel-ref-index-list remainder sub-lis)
-	      sub-lis))
-	  (if (or (= 0 (length portion)) (string-match ind-re portion))
-	      (mapcar
-	       (lambda (n) (nth n lis))
-	       (apply 'org-number-sequence
-		      (if (and (> (length portion) 0) (match-string 2 portion))
-			  (list
-			   (funcall wrap (string-to-number (match-string 2 portion)))
-			   (funcall wrap (string-to-number (match-string 3 portion))))
-			(list (funcall wrap 0) (funcall wrap -1)))))
-	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
-    lis))
-
-(defun org-babel-ref-split-args (arg-string)
-  "Split ARG-STRING into top-level arguments of balanced parenthesis."
-  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
-
-(defvar org-bracket-link-regexp)
-(defun org-babel-ref-at-ref-p ()
-  "Return the type of reference located at point.
-Return nil if none of the supported reference types are found.
-Supported reference types are tables and source blocks."
-  (cond ((org-at-table-p) 'table)
-	((org-at-item-p) 'list)
-        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
-        ((looking-at org-bracket-link-regexp) 'file)
-        ((looking-at org-babel-result-regexp) 'results-line)))
-
-(provide 'ob-ref)
-
-
-
-;;; ob-ref.el ends here
diff --git a/lisp/ob-table.el b/lisp/ob-table.el
index b7cd106..242ddf0 100644
--- a/lisp/ob-table.el
+++ b/lisp/ob-table.el
@@ -50,7 +50,7 @@
 ;; #+TBLFM: $2='(sbe 'fibbd (n $1))
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 
 (defun org-babel-table-truncate-at-newline (string)
   "Replace newline character with ellipses.
diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el
deleted file mode 100644
index 622a0a1..0000000
--- a/lisp/ob-tangle.el
+++ /dev/null
@@ -1,528 +0,0 @@
-;;; ob-tangle.el --- extract source code from org-mode files
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Extract the code from source blocks out into raw source-code files.
-
-;;; Code:
-(require 'org-src)
-(eval-when-compile
-  (require 'cl))
-
-(declare-function org-link-escape "org" (text &optional table))
-(declare-function org-heading-components "org" ())
-(declare-function org-back-to-heading "org" (invisible-ok))
-(declare-function org-fill-template "org" (template alist))
-(declare-function org-babel-update-block-body "org" (new-body))
-(declare-function make-directory "files" (dir &optional parents))
-
-(defcustom org-babel-tangle-lang-exts
-  '(("emacs-lisp" . "el"))
-  "Alist mapping languages to their file extensions.
-The key is the language name, the value is the string that should
-be inserted as the extension commonly used to identify files
-written in this language.  If no entry is found in this list,
-then the name of the language is used."
-  :group 'org-babel-tangle
-  :version "24.1"
-  :type '(repeat
-	  (cons
-	   (string "Language name")
-	   (string "File Extension"))))
-
-(defcustom org-babel-post-tangle-hook nil
-  "Hook run in code files tangled by `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-pre-tangle-hook '(save-buffer)
-  "Hook run at the beginning of `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-body-hook nil
-  "Hook run over the contents of each code block body."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-process-comment-text #'org-babel-trim
-  "Function called to process raw Org-mode text collected to be
-inserted as comments in tangled source-code files.  The function
-should take a single string argument and return a string
-result.  The default value is `org-babel-trim'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'function)
-
-(defun org-babel-find-file-noselect-refresh (file)
-  "Find file ensuring that the latest changes on disk are
-represented in the file."
-  (find-file-noselect file)
-  (with-current-buffer (get-file-buffer file)
-    (revert-buffer t t t)))
-
-(defmacro org-babel-with-temp-filebuffer (file &rest body)
-  "Open FILE into a temporary buffer execute BODY there like
-`progn', then kill the FILE buffer returning the result of
-evaluating BODY."
-  (declare (indent 1))
-  (let ((temp-path (make-symbol "temp-path"))
-	(temp-result (make-symbol "temp-result"))
-	(temp-file (make-symbol "temp-file"))
-	(visited-p (make-symbol "visited-p")))
-    `(let* ((,temp-path ,file)
-	    (,visited-p (get-file-buffer ,temp-path))
-	    ,temp-result ,temp-file)
-       (org-babel-find-file-noselect-refresh ,temp-path)
-       (setf ,temp-file (get-file-buffer ,temp-path))
-       (with-current-buffer ,temp-file
-	 (setf ,temp-result (progn ,@body)))
-       (unless ,visited-p (kill-buffer ,temp-file))
-       ,temp-result)))
-(def-edebug-spec org-babel-with-temp-filebuffer (form body))
-
-;;;###autoload
-(defun org-babel-load-file (file &optional compile)
-  "Load Emacs Lisp source code blocks in the Org-mode FILE.
-This function exports the source code using `org-babel-tangle'
-and then loads the resulting file using `load-file'.  With prefix
-arg (noninteractively: 2nd arg) COMPILE the tangled Emacs Lisp
-file to byte-code before it is loaded."
-  (interactive "fFile to load: \nP")
-  (let* ((age (lambda (file)
-		(float-time
-		 (time-subtract (current-time)
-				(nth 5 (or (file-attributes (file-truename file))
-					   (file-attributes file)))))))
-	 (base-name (file-name-sans-extension file))
-	 (exported-file (concat base-name ".el")))
-    ;; tangle if the org-mode file is newer than the elisp file
-    (unless (and (file-exists-p exported-file)
-		 (> (funcall age file) (funcall age exported-file)))
-      (org-babel-tangle-file file exported-file "emacs-lisp"))
-    (message "%s %s"
-	     (if compile
-		 (progn (byte-compile-file exported-file 'load)
-			"Compiled and loaded")
-	       (progn (load-file exported-file) "Loaded"))
-	     exported-file)))
-
-;;;###autoload
-(defun org-babel-tangle-file (file &optional target-file lang)
-  "Extract the bodies of source code blocks in FILE.
-Source code blocks are extracted with `org-babel-tangle'.
-Optional argument TARGET-FILE can be used to specify a default
-export file for all source blocks.  Optional argument LANG can be
-used to limit the exported source code blocks by language."
-  (interactive "fFile to tangle: \nP")
-  (let ((visited-p (get-file-buffer (expand-file-name file)))
-	to-be-removed)
-    (save-window-excursion
-      (find-file file)
-      (setq to-be-removed (current-buffer))
-      (org-babel-tangle nil target-file lang))
-    (unless visited-p
-      (kill-buffer to-be-removed))))
-
-(defun org-babel-tangle-publish (_ filename pub-dir)
-  "Tangle FILENAME and place the results in PUB-DIR."
-  (mapc (lambda (el) (copy-file el pub-dir t)) (org-babel-tangle-file filename)))
-
-;;;###autoload
-(defun org-babel-tangle (&optional only-this-block target-file lang)
-  "Write code blocks to source-specific files.
-Extract the bodies of all source code blocks from the current
-file into their own source-specific files.  Optional argument
-TARGET-FILE can be used to specify a default export file for all
-source blocks.  Optional argument LANG can be used to limit the
-exported source code blocks by language."
-  (interactive "P")
-  (run-hooks 'org-babel-pre-tangle-hook)
-  ;; possibly restrict the buffer to the current code block
-  (save-restriction
-    (when only-this-block
-      (unless (org-babel-where-is-src-block-head)
-	(error "Point is not currently inside of a code block"))
-      (save-match-data
-	(unless (or (cdr (assoc :tangle (nth 2 (org-babel-get-src-block-info))))
-		    target-file)
-	  (setq target-file
-		(read-from-minibuffer "Tangle to: " (buffer-file-name)))))
-      (narrow-to-region (match-beginning 0) (match-end 0)))
-    (save-excursion
-      (let ((block-counter 0)
-	    (org-babel-default-header-args
-	     (if target-file
-		 (org-babel-merge-params org-babel-default-header-args
-					 (list (cons :tangle target-file)))
-	       org-babel-default-header-args))
-	    path-collector)
-	(mapc ;; map over all languages
-	 (lambda (by-lang)
-	   (let* ((lang (car by-lang))
-		  (specs (cdr by-lang))
-		  (ext (or (cdr (assoc lang org-babel-tangle-lang-exts)) lang))
-		  (lang-f (intern
-			   (concat
-			    (or (and (cdr (assoc lang org-src-lang-modes))
-				     (symbol-name
-				      (cdr (assoc lang org-src-lang-modes))))
-				lang)
-			    "-mode")))
-		  she-banged)
-	     (mapc
-	      (lambda (spec)
-		(let ((get-spec (lambda (name) (cdr (assoc name (nth 4 spec))))))
-		  (let* ((tangle (funcall get-spec :tangle))
-			 (she-bang ((lambda (sheb) (when (> (length sheb) 0) sheb))
-				    (funcall get-spec :shebang)))
-			 (base-name (cond
-				     ((string= "yes" tangle)
-				      (file-name-sans-extension
-				       (buffer-file-name)))
-				     ((string= "no" tangle) nil)
-				     ((> (length tangle) 0) tangle)))
-			 (file-name (when base-name
-				      ;; decide if we want to add ext to base-name
-				      (if (and ext (string= "yes" tangle))
-					  (concat base-name "." ext) base-name))))
-		    (when file-name
-		      ;; possibly create the parent directories for file
-		      (when ((lambda (m) (and m (not (string= m "no"))))
-			     (funcall get-spec :mkdirp))
-			(make-directory (file-name-directory file-name) 'parents))
-		      ;; delete any old versions of file
-		      (when (and (file-exists-p file-name)
-				 (not (member file-name path-collector)))
-			(delete-file file-name))
-		      ;; drop source-block to file
-		      (with-temp-buffer
-			(when (fboundp lang-f) (ignore-errors (funcall lang-f)))
-			(when (and she-bang (not (member file-name she-banged)))
-			  (insert (concat she-bang "\n"))
-			  (setq she-banged (cons file-name she-banged)))
-			(org-babel-spec-to-string spec)
-			;; We avoid append-to-file as it does not work with tramp.
-			(let ((content (buffer-string)))
-			  (with-temp-buffer
-			    (if (file-exists-p file-name)
-				(insert-file-contents file-name))
-			    (goto-char (point-max))
-			    (insert content)
-			    (write-region nil nil file-name))))
-		      (set-file-modes
-		       file-name
-		       ;; never writable (don't accidentally edit tangled files)
-		       (if she-bang
-			   #o555 ;; files with she-bangs should be executable
-			 #o444)) ;; those without should not
-		      ;; update counter
-		      (setq block-counter (+ 1 block-counter))
-		      (add-to-list 'path-collector file-name)))))
-	      specs)))
-	 (org-babel-tangle-collect-blocks lang))
-	(message "Tangled %d code block%s from %s" block-counter
-		 (if (= block-counter 1) "" "s")
-		 (file-name-nondirectory
-		  (buffer-file-name (or (buffer-base-buffer) (current-buffer)))))
-	;; run `org-babel-post-tangle-hook' in all tangled files
-	(when org-babel-post-tangle-hook
-	  (mapc
-	   (lambda (file)
-	     (org-babel-with-temp-filebuffer file
-	       (run-hooks 'org-babel-post-tangle-hook)))
-	   path-collector))
-	path-collector))))
-
-(defun org-babel-tangle-clean ()
-  "Remove comments inserted by `org-babel-tangle'.
-Call this function inside of a source-code file generated by
-`org-babel-tangle' to remove all comments inserted automatically
-by `org-babel-tangle'.  Warning, this comment removes any lines
-containing constructs which resemble org-mode file links or noweb
-references."
-  (interactive)
-  (goto-char (point-min))
-  (while (or (re-search-forward "\\[\\[file:.*\\]\\[.*\\]\\]" nil t)
-             (re-search-forward (org-babel-noweb-wrap) nil t))
-    (delete-region (save-excursion (beginning-of-line 1) (point))
-                   (save-excursion (end-of-line 1) (forward-char 1) (point)))))
-
-(defvar org-stored-links)
-(defvar org-bracket-link-regexp)
-(defun org-babel-spec-to-string (spec)
-  "Insert SPEC into the current file.
-Insert the source-code specified by SPEC into the current
-source code file.  This function uses `comment-region' which
-assumes that the appropriate major-mode is set.  SPEC has the
-form
-
-  (start-line file link source-name params body comment)"
-  (let* ((start-line (nth 0 spec))
-	 (file (nth 1 spec))
-	 (link (nth 2 spec))
-	 (source-name (nth 3 spec))
-	 (body (nth 5 spec))
-	 (comment (nth 6 spec))
-	 (comments (cdr (assoc :comments (nth 4 spec))))
-	 (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec))))))
-	 (link-p (or (string= comments "both") (string= comments "link")
-		     (string= comments "yes") (string= comments "noweb")))
-	 (link-data (mapcar (lambda (el)
-			      (cons (symbol-name el)
-				    ((lambda (le)
-				       (if (stringp le) le (format "%S" le)))
-				     (eval el))))
-			    '(start-line file link source-name)))
-	 (insert-comment (lambda (text)
-			   (when (and comments (not (string= comments "no"))
-				      (> (length text) 0))
-			     (when padline (insert "\n"))
-			     (comment-region (point) (progn (insert text) (point)))
-			     (end-of-line nil) (insert "\n")))))
-    (when comment (funcall insert-comment comment))
-    (when link-p
-      (funcall
-       insert-comment
-       (org-fill-template org-babel-tangle-comment-format-beg link-data)))
-    (when padline (insert "\n"))
-    (insert
-     (format
-      "%s\n"
-      (replace-regexp-in-string
-       "^," ""
-       (org-babel-trim body (if org-src-preserve-indentation "[\f\n\r\v]")))))
-    (when link-p
-      (funcall
-       insert-comment
-       (org-fill-template org-babel-tangle-comment-format-end link-data)))))
-
-(defun org-babel-tangle-collect-blocks (&optional language)
-  "Collect source blocks in the current Org-mode file.
-Return an association list of source-code block specifications of
-the form used by `org-babel-spec-to-string' grouped by language.
-Optional argument LANG can be used to limit the collected source
-code blocks by language."
-  (let ((block-counter 1) (current-heading "") blocks)
-    (org-babel-map-src-blocks (buffer-file-name)
-      ((lambda (new-heading)
-	 (if (not (string= new-heading current-heading))
-	     (progn
-	       (setq block-counter 1)
-	       (setq current-heading new-heading))
-	   (setq block-counter (+ 1 block-counter))))
-       (replace-regexp-in-string "[ \t]" "-"
-				 (condition-case nil
-				     (or (nth 4 (org-heading-components))
-					 "(dummy for heading without text)")
-				   (error (buffer-file-name)))))
-      (let* ((start-line (save-restriction (widen)
-					   (+ 1 (line-number-at-pos (point)))))
-	     (file (buffer-file-name))
-	     (info (org-babel-get-src-block-info 'light))
-	     (src-lang (nth 0 info)))
-        (unless (string= (cdr (assoc :tangle (nth 2 info))) "no")
-          (unless (and language (not (string= language src-lang)))
-	    (let* ((info (org-babel-get-src-block-info))
-		   (params (nth 2 info))
-		   (link ((lambda (link)
-			    (and (string-match org-bracket-link-regexp link)
-				 (match-string 1 link)))
-			  (org-no-properties
-			   (org-store-link nil))))
-		   (source-name
-		    (intern (or (nth 4 info)
-				(format "%s:%d"
-					current-heading block-counter))))
-		   (expand-cmd
-		    (intern (concat "org-babel-expand-body:" src-lang)))
-		   (assignments-cmd
-		    (intern (concat "org-babel-variable-assignments:" src-lang)))
-		   (body
-		    ((lambda (body) ;; run the tangle-body-hook
-		       (with-temp-buffer
-			 (insert body)
-			 (run-hooks 'org-babel-tangle-body-hook)
-			 (buffer-string)))
-		     ((lambda (body) ;; expand the body in language specific manner
-			(if (assoc :no-expand params)
-			    body
-			  (if (fboundp expand-cmd)
-			      (funcall expand-cmd body params)
-			    (org-babel-expand-body:generic
-			     body params
-			     (and (fboundp assignments-cmd)
-				  (funcall assignments-cmd params))))))
-		      (if (org-babel-noweb-p params :tangle)
-			  (org-babel-expand-noweb-references info)
-			(nth 1 info)))))
-		   (comment
-		    (when (or (string= "both" (cdr (assoc :comments params)))
-			      (string= "org" (cdr (assoc :comments params))))
-		      ;; from the previous heading or code-block end
-		      (funcall
-		       org-babel-process-comment-text
-		       (buffer-substring
-			(max (condition-case nil
-				 (save-excursion
-				   (org-back-to-heading t)  ; sets match data
-				   (match-end 0))
-			       (error (point-min)))
-			     (save-excursion
-			       (if (re-search-backward
-				    org-babel-src-block-regexp nil t)
-				   (match-end 0)
-				 (point-min))))
-			(point)))))
-		   by-lang)
-	      ;; add the spec for this block to blocks under it's language
-	      (setq by-lang (cdr (assoc src-lang blocks)))
-	      (setq blocks (delq (assoc src-lang blocks) blocks))
-	      (setq blocks (cons
-			    (cons src-lang
-				  (cons (list start-line file link
-					      source-name params body comment)
-					by-lang)) blocks)))))))
-    ;; ensure blocks in the correct order
-    (setq blocks
-          (mapcar
-	   (lambda (by-lang) (cons (car by-lang) (reverse (cdr by-lang))))
-	   blocks))
-    blocks))
-
-(defun org-babel-tangle-comment-links ( &optional info)
-  "Return a list of begin and end link comments for the code block at point."
-  (let* ((start-line (org-babel-where-is-src-block-head))
-	 (file (buffer-file-name))
-	 (link (org-link-escape (progn (call-interactively 'org-store-link)
-				       (org-no-properties
-					(car (pop org-stored-links))))))
-	 (source-name (nth 4 (or info (org-babel-get-src-block-info 'light))))
-	 (link-data (mapcar (lambda (el)
-			      (cons (symbol-name el)
-				    ((lambda (le)
-				       (if (stringp le) le (format "%S" le)))
-				     (eval el))))
-			    '(start-line file link source-name))))
-    (list (org-fill-template org-babel-tangle-comment-format-beg link-data)
-	  (org-fill-template org-babel-tangle-comment-format-end link-data))))
-
-;; de-tangling functions
-(defvar org-bracket-link-analytic-regexp)
-(defun org-babel-detangle (&optional source-code-file)
-  "Propagate changes in source file back original to Org-mode file.
-This requires that code blocks were tangled with link comments
-which enable the original code blocks to be found."
-  (interactive)
-  (save-excursion
-    (when source-code-file (find-file source-code-file))
-    (goto-char (point-min))
-    (let ((counter 0) new-body end)
-      (while (re-search-forward org-bracket-link-analytic-regexp nil t)
-        (when (re-search-forward
-	       (concat " " (regexp-quote (match-string 5)) " ends here"))
-          (setq end (match-end 0))
-          (forward-line -1)
-          (save-excursion
-	    (when (setq new-body (org-babel-tangle-jump-to-org))
-	      (org-babel-update-block-body new-body)))
-          (setq counter (+ 1 counter)))
-        (goto-char end))
-      (prog1 counter (message "Detangled %d code blocks" counter)))))
-
-(defun org-babel-tangle-jump-to-org ()
-  "Jump from a tangled code file to the related Org-mode file."
-  (interactive)
-  (let ((mid (point))
-	start end done
-        target-buffer target-char link path block-name body)
-    (save-window-excursion
-      (save-excursion
-	(while (and (re-search-backward org-bracket-link-analytic-regexp nil t)
-		    (not ; ever wider searches until matching block comments
-		     (and (setq start (point-at-eol))
-			  (setq link (match-string 0))
-			  (setq path (match-string 3))
-			  (setq block-name (match-string 5))
-			  (save-excursion
-			    (save-match-data
-			      (re-search-forward
-			       (concat " " (regexp-quote block-name)
-				       " ends here") nil t)
-			      (setq end (point-at-bol))))))))
-	(unless (and start (< start mid) (< mid end))
-	  (error "Not in tangled code"))
-        (setq body (org-babel-trim (buffer-substring start end))))
-      (when (string-match "::" path)
-        (setq path (substring path 0 (match-beginning 0))))
-      (find-file path) (setq target-buffer (current-buffer))
-      (goto-char start) (org-open-link-from-string link)
-      (if (string-match "[^ \t\n\r]:\\([[:digit:]]+\\)" block-name)
-          (org-babel-next-src-block
-           (string-to-number (match-string 1 block-name)))
-        (org-babel-goto-named-src-block block-name))
-      (setq target-char (point)))
-    (pop-to-buffer target-buffer)
-    (prog1 body (goto-char target-char))))
-
-(provide 'ob-tangle)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-tangle.el ends here
diff --git a/lisp/ob.el b/lisp/ob.el
index 3010503..a61aceb 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -3,6 +3,7 @@
 ;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
 
 ;; Authors: Eric Schulte
+;;	Dan Davison
 ;; Keywords: literate programming, reproducible research
 ;; Homepage: http://orgmode.org
 
@@ -22,15 +23,3828 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-eval)
-(require 'ob-core)
-(require 'ob-comint)
-(require 'ob-exp)
-(require 'ob-keys)
-(require 'ob-table)
-(require 'ob-lob)
-(require 'ob-ref)
-(require 'ob-tangle)
+(eval-when-compile
+  (require 'cl))
+
+(require 'org-macs)
+(require 'org-compat)
+(require 'comint)
+
+;;; ob-eval
+(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
+
+(defun org-babel-eval-error-notify (exit-code stderr)
+  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
+  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
+    (with-current-buffer buf
+      (goto-char (point-max))
+      (save-excursion (insert stderr)))
+    (display-buffer buf))
+  (message "Babel evaluation exited with code %S" exit-code))
+
+(defun org-babel-eval (cmd body)
+  "Run CMD on BODY.
+If CMD succeeds then return its results, otherwise display
+STDERR with `org-babel-eval-error-notify'."
+  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
+    (with-current-buffer err-buff (erase-buffer))
+    (with-temp-buffer
+      (insert body)
+      (setq exit-code
+	    (org-babel-shell-command-on-region
+	     (point-min) (point-max) cmd t 'replace err-buff))
+      (if (or (not (numberp exit-code)) (> exit-code 0))
+	  (progn
+	    (with-current-buffer err-buff
+	      (org-babel-eval-error-notify exit-code (buffer-string)))
+	    nil)
+	(buffer-string)))))
+
+(defun org-babel-eval-read-file (file)
+  "Return the contents of FILE as a string."
+  (with-temp-buffer (insert-file-contents file)
+		    (buffer-string)))
+
+(defun org-babel-shell-command-on-region (start end command
+						&optional output-buffer replace
+						error-buffer display-error-buffer)
+  "Execute COMMAND in an inferior shell with region as input.
+
+Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
+
+Normally display output (if any) in temp buffer `*Shell Command Output*';
+Prefix arg means replace the region with it.  Return the exit code of
+COMMAND.
+
+To specify a coding system for converting non-ASCII characters in
+the input and output to the shell command, use
+\\[universal-coding-system-argument] before this command.  By
+default, the input (from the current buffer) is encoded in the
+same coding system that will be used to save the file,
+`buffer-file-coding-system'.  If the output is going to replace
+the region, then it is decoded from that same coding system.
+
+The noninteractive arguments are START, END, COMMAND,
+OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
+Noninteractive callers can specify coding systems by binding
+`coding-system-for-read' and `coding-system-for-write'.
+
+If the command generates output, the output may be displayed
+in the echo area or in a buffer.
+If the output is short enough to display in the echo area
+\(determined by the variable `max-mini-window-height' if
+`resize-mini-windows' is non-nil), it is shown there.  Otherwise
+it is displayed in the buffer `*Shell Command Output*'.  The output
+is available in that buffer in both cases.
+
+If there is output and an error, a message about the error
+appears at the end of the output.
+
+If there is no output, or if output is inserted in the current buffer,
+then `*Shell Command Output*' is deleted.
+
+If the optional fourth argument OUTPUT-BUFFER is non-nil,
+that says to put the output in some other buffer.
+If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
+If OUTPUT-BUFFER is not a buffer and not nil,
+insert output in the current buffer.
+In either case, the output is inserted after point (leaving mark after it).
+
+If REPLACE, the optional fifth argument, is non-nil, that means insert
+the output in place of text from START to END, putting point and mark
+around it.
+
+If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
+or buffer name to which to direct the command's standard error output.
+If it is nil, error output is mingled with regular output.
+If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
+were any errors.  (This is always t, interactively.)
+In an interactive call, the variable `shell-command-default-error-buffer'
+specifies the value of ERROR-BUFFER."
+  (interactive (let (string)
+		 (unless (mark)
+		   (error "The mark is not set now, so there is no region"))
+		 ;; Do this before calling region-beginning
+		 ;; and region-end, in case subprocess output
+		 ;; relocates them while we are in the minibuffer.
+		 (setq string (read-shell-command "Shell command on region: "))
+		 ;; call-interactively recognizes region-beginning and
+		 ;; region-end specially, leaving them in the history.
+		 (list (region-beginning) (region-end)
+		       string
+		       current-prefix-arg
+		       current-prefix-arg
+		       shell-command-default-error-buffer
+		       t)))
+  (let ((error-file
+	 (if error-buffer
+	     (make-temp-file
+	      (expand-file-name "scor"
+                                (if (featurep 'xemacs)
+                                    (temp-directory)
+                                  temporary-file-directory)))
+	   nil))
+	exit-status)
+    (if (or replace
+	    (and output-buffer
+		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
+	;; Replace specified region with output from command.
+	(let ((swap (and replace (< start end))))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (goto-char start)
+	  (and replace (push-mark (point) 'nomsg))
+	  (setq exit-status
+		(call-process-region start end shell-file-name t
+				     (if error-file
+					 (list output-buffer error-file)
+				       t)
+				     nil shell-command-switch command))
+	  ;; It is rude to delete a buffer which the command is not using.
+	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
+	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
+	  ;; 	 (kill-buffer shell-buffer)))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (and replace swap (exchange-point-and-mark)))
+      ;; No prefix argument: put the output in a temp buffer,
+      ;; replacing its entire contents.
+      (let ((buffer (get-buffer-create
+		     (or output-buffer "*Shell Command Output*"))))
+	(unwind-protect
+	    (if (eq buffer (current-buffer))
+		;; If the input is the same buffer as the output,
+		;; delete everything but the specified region,
+		;; then replace that region with the output.
+		(progn (setq buffer-read-only nil)
+		       (delete-region (max start end) (point-max))
+		       (delete-region (point-min) (min start end))
+		       (setq exit-status
+			     (call-process-region (point-min) (point-max)
+						  shell-file-name t
+						  (if error-file
+						      (list t error-file)
+						    t)
+						  nil shell-command-switch
+						  command)))
+	      ;; Clear the output buffer, then run the command with
+	      ;; output there.
+	      (let ((directory default-directory))
+		(with-current-buffer buffer
+		  (setq buffer-read-only nil)
+		  (if (not output-buffer)
+		      (setq default-directory directory))
+		  (erase-buffer)))
+	      (setq exit-status
+		    (call-process-region start end shell-file-name nil
+					 (if error-file
+					     (list buffer error-file)
+					   buffer)
+					 nil shell-command-switch command)))
+	  ;; Report the output.
+	  (with-current-buffer buffer
+	    (setq mode-line-process
+		  (cond ((null exit-status)
+			 " - Error")
+			((stringp exit-status)
+			 (format " - Signal [%s]" exit-status))
+			((not (equal 0 exit-status))
+			 (format " - Exit [%d]" exit-status)))))
+	  (if (with-current-buffer buffer (> (point-max) (point-min)))
+	      ;; There's some output, display it
+	      (display-message-or-buffer buffer)
+	    ;; No output; error?
+	    (let ((output
+		   (if (and error-file
+			    (< 0 (nth 7 (file-attributes error-file))))
+		       "some error output"
+		     "no output")))
+	      (cond ((null exit-status)
+		     (message "(Shell command failed with error)"))
+		    ((equal 0 exit-status)
+		     (message "(Shell command succeeded with %s)"
+			      output))
+		    ((stringp exit-status)
+		     (message "(Shell command killed by signal %s)"
+			      exit-status))
+		    (t
+		     (message "(Shell command failed with code %d and %s)"
+			      exit-status output))))
+	    ;; Don't kill: there might be useful info in the undo-log.
+	    ;; (kill-buffer buffer)
+	    ))))
+
+    (when (and error-file (file-exists-p error-file))
+      (if (< 0 (nth 7 (file-attributes error-file)))
+	  (with-current-buffer (get-buffer-create error-buffer)
+	    (let ((pos-from-end (- (point-max) (point))))
+	      (or (bobp)
+		  (insert "\f\n"))
+	      ;; Do no formatting while reading error file,
+	      ;; because that can run a shell command, and we
+	      ;; don't want that to cause an infinite recursion.
+	      (format-insert-file error-file nil)
+	      ;; Put point after the inserted errors.
+	      (goto-char (- (point-max) pos-from-end)))
+	    (and display-error-buffer
+		 (display-buffer (current-buffer)))))
+      (delete-file error-file))
+    exit-status))
+
+(defun org-babel-eval-wipe-error-buffer ()
+  "Delete the contents of the Org code block error buffer.
+This buffer is named by `org-babel-error-buffer-name'."
+  (when (get-buffer org-babel-error-buffer-name)
+    (with-current-buffer org-babel-error-buffer-name
+      (delete-region (point-min) (point-max)))))
+
+(defconst org-babel-exeext
+  (if (memq system-type '(windows-nt cygwin))
+      ".exe"
+    nil))
+(defvar org-babel-call-process-region-original)
+(defvar org-src-lang-modes)
+(defvar org-babel-library-of-babel)
+(declare-function show-all "outline" ())
+(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
+(declare-function org-mark-ring-push "org" (&optional pos buffer))
+(declare-function tramp-compat-make-temp-file "tramp-compat"
+                  (filename &optional dir-flag))
+(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
+(declare-function tramp-file-name-user "tramp" (vec))
+(declare-function tramp-file-name-host "tramp" (vec))
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function org-icompleting-read "org" (&rest args))
+(declare-function org-edit-src-code "org-src"
+                  (&optional context code edit-buffer-name quietp))
+(declare-function org-edit-src-exit "org-src"  (&optional context))
+(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
+(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
+(declare-function org-outline-overlay-data "org" (&optional use-markers))
+(declare-function org-set-outline-overlay-data "org" (data))
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-entry-get "org"
+		  (pom property &optional inherit literal-nil))
+(declare-function org-make-options-regexp "org" (kwds &optional extra))
+(declare-function org-do-remove-indentation "org" (&optional n))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-cycle "org" (&optional arg))
+(declare-function org-uniquify "org" (list))
+(declare-function org-current-level "org" ())
+(declare-function org-table-import "org-table" (file arg))
+(declare-function org-add-hook "org-compat"
+		  (hook function &optional append local))
+(declare-function org-table-align "org-table" ())
+(declare-function org-table-end "org-table" (&optional table-type))
+(declare-function orgtbl-to-generic "org-table" (table params))
+(declare-function orgtbl-to-orgtbl "org-table" (table params))
+(declare-function org-number-sequence "org-compat" (from &optional to inc))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-list-parse-list "org-list" (&optional delete))
+(declare-function org-list-to-generic "org-list" (LIST PARAMS))
+(declare-function org-list-struct "org-list" ())
+(declare-function org-list-prevs-alist "org-list" (struct))
+(declare-function org-list-get-list-end "org-list" (item struct prevs))
+(declare-function org-remove-if "org" (predicate seq))
+(declare-function org-completing-read "org" (&rest args))
+(declare-function org-escape-code-in-region "org-src" (beg end))
+(declare-function org-unescape-code-in-string "org-src" (s))
+(declare-function org-table-to-lisp "org-table" (&optional txt))
+
+(defgroup org-babel nil
+  "Code block evaluation and management in `org-mode' documents."
+  :tag "Babel"
+  :group 'org)
+
+(defcustom org-confirm-babel-evaluate t
+  "Confirm before evaluation.
+Require confirmation before interactively evaluating code
+blocks in Org-mode buffers.  The default value of this variable
+is t, meaning confirmation is required for any code block
+evaluation.  This variable can be set to nil to inhibit any
+future confirmation requests.  This variable can also be set to a
+function which takes two arguments the language of the code block
+and the body of the code block.  Such a function should then
+return a non-nil value if the user should be prompted for
+execution or nil if no prompt is required.
+
+Warning: Disabling confirmation may result in accidental
+evaluation of potentially harmful code.  It may be advisable
+remove code block execution from C-c C-c as further protection
+against accidental code block evaluation.  The
+`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
+remove code block execution from the C-c C-c keybinding."
+  :group 'org-babel
+  :version "24.1"
+  :type '(choice boolean function))
+;; don't allow this variable to be changed through file settings
+(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
+
+(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
+  "Remove code block evaluation from the C-c C-c key binding."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+
+(defcustom org-babel-results-keyword "RESULTS"
+  "Keyword used to name results generated by code blocks.
+Should be either RESULTS or NAME however any capitalization may
+be used."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-start "<<"
+  "String used to begin a noweb reference in a code block.
+See also `org-babel-noweb-wrap-end'."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-end ">>"
+  "String used to end a noweb reference in a code block.
+See also `org-babel-noweb-wrap-start'."
+  :group 'org-babel
+  :type 'string)
+
+(defun org-babel-noweb-wrap (&optional regexp)
+  (concat org-babel-noweb-wrap-start
+	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
+	  org-babel-noweb-wrap-end))
+
+(defvar org-babel-src-name-regexp
+  "^[ \t]*#\\+name:[ \t]*"
+  "Regular expression used to match a source name line.")
+
+(defvar org-babel-multi-line-header-regexp
+  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
+  "Regular expression used to match multi-line header arguments.")
+
+(defvar org-babel-src-name-w-name-regexp
+  (concat org-babel-src-name-regexp
+	  "\\("
+	  org-babel-multi-line-header-regexp
+	  "\\)*"
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
+  "Regular expression matching source name lines with a name.")
+
+(defvar org-babel-src-block-regexp
+  (concat
+   ;; (1) indentation                 (2) lang
+   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
+   ;; (3) switches
+   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
+   ;; (4) header arguments
+   "\\([^\n]*\\)\n"
+   ;; (5) body
+   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
+  "Regexp used to identify code blocks.")
+
+(defvar org-babel-inline-src-block-regexp
+  (concat
+   ;; (1) replacement target (2) lang
+   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
+   ;; (3,4) (unused, headers)
+   "\\(\\|\\[\\(.*?\\)\\]\\)"
+   ;; (5) body
+   "{\\([^\f\n\r\v]+?\\)}\\)")
+  "Regexp used to identify inline src-blocks.")
+
+(defun org-babel-get-header (params key &optional others)
+  "Select only header argument of type KEY from a list.
+Optional argument OTHERS indicates that only the header that do
+not match KEY should be returned."
+  (delq nil
+	(mapcar
+	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
+	 params)))
+
+(defun org-babel-get-inline-src-block-matches()
+  "Set match data if within body of an inline source block.
+Returns non-nil if match-data set"
+  (let ((src-at-0-p (save-excursion
+		      (beginning-of-line 1)
+		      (string= "src" (thing-at-point 'word))))
+	(first-line-p (= 1 (line-number-at-pos)))
+	(orig (point)))
+    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
+			    (first-line-p "[[:punct:] \t]src_")
+			    (t "[[:punct:] \f\t\n\r\v]src_")))
+	  (lower-limit (if first-line-p
+			   nil
+			 (- (point-at-bol) 1))))
+      (save-excursion
+	(when (or (and src-at-0-p (bobp))
+		  (and (re-search-forward "}" (point-at-eol) t)
+		       (re-search-backward search-for lower-limit t)
+		       (> orig (point))))
+	  (when (looking-at org-babel-inline-src-block-regexp)
+	    t ))))))
+
+(defvar org-babel-inline-lob-one-liner-regexp)
+(defun org-babel-get-lob-one-liner-matches()
+  "Set match data if on line of an lob one liner.
+Returns non-nil if match-data set"
+  (save-excursion
+    (unless (= (point) (point-at-bol)) ;; move before inline block
+      (re-search-backward "[ \f\t\n\r\v]" nil t))
+    (if (looking-at org-babel-inline-lob-one-liner-regexp)
+	t
+      nil)))
+
+(defun org-babel-get-src-block-info (&optional light)
+  "Get information on the current source block.
+
+Optional argument LIGHT does not resolve remote variable
+references; a process which could likely result in the execution
+of other code blocks.
+
+Returns a list
+ (language body header-arguments-alist switches name indent)."
+  (let ((case-fold-search t) head info name indent)
+    ;; full code block
+    (if (setq head (org-babel-where-is-src-block-head))
+	(save-excursion
+	  (goto-char head)
+	  (setq info (org-babel-parse-src-block-match))
+	  (setq indent (car (last info)))
+	  (setq info (butlast info))
+	  (while (and (forward-line -1)
+		      (looking-at org-babel-multi-line-header-regexp))
+	    (setf (nth 2 info)
+		  (org-babel-merge-params
+		   (nth 2 info)
+		   (org-babel-parse-header-arguments (match-string 1)))))
+	  (when (looking-at org-babel-src-name-w-name-regexp)
+	    (setq name (org-no-properties (match-string 3)))
+	    (when (and (match-string 5) (> (length (match-string 5)) 0))
+	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
+		    (org-babel-merge-params
+		     (mapcar
+		      (lambda (ref) (cons :var ref))
+		      (mapcar
+		       (lambda (var) ;; check that each variable is initialized
+			 (if (string-match ".+=.+" var)
+			     var
+			   (error
+			    "variable \"%s\"%s must be assigned a default value"
+			    var (if name (format " in block \"%s\"" name) ""))))
+		       (org-babel-ref-split-args (match-string 5))))
+		     (nth 2 info))))))
+      ;; inline source block
+      (when (org-babel-get-inline-src-block-matches)
+	(setq info (org-babel-parse-inline-src-block-match))))
+    ;; resolve variable references and add summary parameters
+    (when (and info (not light))
+      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
+    (when info (append info (list name indent)))))
+
+(defvar org-current-export-file) ; dynamically bound
+(defun org-babel-confirm-evaluate (info)
+  "Confirm evaluation of the code block INFO.
+This behavior can be suppressed by setting the value of
+`org-confirm-babel-evaluate' to nil, in which case all future
+interactive code block evaluations will proceed without any
+confirmation from the user.
+
+Note disabling confirmation may result in accidental evaluation
+of potentially harmful code."
+  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
+		   (when (assoc :noeval (nth 2 info)) "no")))
+         (query (cond ((equal eval "query") t)
+		      ((and (boundp 'org-current-export-file)
+			    org-current-export-file
+			    (equal eval "query-export")) t)
+                      ((functionp org-confirm-babel-evaluate)
+                       (funcall org-confirm-babel-evaluate
+                                (nth 0 info) (nth 1 info)))
+                      (t org-confirm-babel-evaluate))))
+    (if (or (equal eval "never") (equal eval "no")
+	    (and (boundp 'org-current-export-file)
+		 org-current-export-file
+		 (or (equal eval "no-export")
+		     (equal eval "never-export")))
+	    (and query
+		 (not (yes-or-no-p
+		       (format "Evaluate this%scode block%son your system? "
+			       (if info (format " %s " (nth 0 info)) " ")
+			       (if (nth 4 info)
+				   (format " (%s) " (nth 4 info)) " "))))))
+	(prog1 nil (message "Evaluation %s"
+			    (if (or (equal eval "never") (equal eval "no")
+				    (equal eval "no-export")
+				    (equal eval "never-export"))
+				"Disabled" "Aborted")))
+      t)))
+
+;;;###autoload
+(defun org-babel-execute-safely-maybe ()
+  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
+    (org-babel-execute-maybe)))
+
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
+
+;;;###autoload
+(defun org-babel-execute-maybe ()
+  (interactive)
+  (or (org-babel-execute-src-block-maybe)
+      (org-babel-lob-execute-maybe)))
+
+(defun org-babel-execute-src-block-maybe ()
+  "Conditionally execute a source block.
+Detect if this is context for a Babel src-block and if so
+then run `org-babel-execute-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-eval-wipe-error-buffer)
+	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
+
+;;;###autoload
+(defun org-babel-view-src-block-info ()
+  "Display information on the current source block.
+This includes header arguments, language and name, and is largely
+a window into the `org-babel-get-src-block-info' function."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info 'light))
+	(full (lambda (it) (> (length it) 0)))
+	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
+    (when info
+      (with-help-window (help-buffer)
+	(let ((name        (nth 4 info))
+	      (lang        (nth 0 info))
+	      (switches    (nth 3 info))
+	      (header-args (nth 2 info)))
+	  (when name            (funcall printf "Name: %s\n"     name))
+	  (when lang            (funcall printf "Lang: %s\n"     lang))
+	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
+	  (funcall printf "Header Arguments:\n")
+	  (dolist (pair (sort header-args
+			      (lambda (a b) (string< (symbol-name (car a))
+						     (symbol-name (car b))))))
+	    (when (funcall full (cdr pair))
+	      (funcall printf "\t%S%s\t%s\n"
+		       (car pair)
+		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
+		       (cdr pair)))))))))
+
+;;;###autoload
+(defun org-babel-expand-src-block-maybe ()
+  "Conditionally expand a source block.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-expand-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-expand-src-block current-prefix-arg info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-load-in-session-maybe ()
+  "Conditionally load a source block in a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-load-in-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-load-in-session current-prefix-arg info) t)
+      nil)))
+
+(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
+
+;;;###autoload
+(defun org-babel-pop-to-session-maybe ()
+  "Conditionally pop to a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-pop-to-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
+
+(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
+
+(defconst org-babel-common-header-args-w-values
+  '((cache	. ((no yes)))
+    (cmdline	. :any)
+    (colnames	. ((nil no yes)))
+    (comments	. ((no link yes org both noweb)))
+    (dir	. :any)
+    (eval	. ((never query)))
+    (exports	. ((code results both none)))
+    (file	. :any)
+    (file-desc  . :any)
+    (hlines	. ((no yes)))
+    (mkdirp	. ((yes no)))
+    (no-expand)
+    (noeval)
+    (noweb	. ((yes no tangle no-export strip-export)))
+    (noweb-ref	. :any)
+    (noweb-sep  . :any)
+    (padline	. ((yes no)))
+    (results	. ((file list vector table scalar verbatim)
+		   (raw html latex org code pp drawer)
+		   (replace silent none append prepend)
+		   (output value)))
+    (rownames	. ((no yes)))
+    (sep	. :any)
+    (session	. :any)
+    (shebang	. :any)
+    (tangle	. ((tangle yes no :any)))
+    (var	. :any)
+    (wrap       . :any)))
+
+(defconst org-babel-header-arg-names
+  (mapcar #'car org-babel-common-header-args-w-values)
+  "Common header arguments used by org-babel.
+Note that individual languages may define their own language
+specific header arguments as well.")
+
+(defvar org-babel-default-header-args
+  '((:session . "none") (:results . "replace") (:exports . "code")
+    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
+    (:padnewline . "yes"))
+  "Default arguments to use when evaluating a source block.")
+
+(defvar org-babel-default-inline-header-args
+  '((:session . "none") (:results . "replace") (:exports . "results"))
+  "Default arguments to use when evaluating an inline source block.")
+
+(defvar org-babel-data-names '("tblname" "results" "name"))
+
+(defvar org-babel-result-regexp
+  (concat "^[ \t]*#\\+"
+	  (regexp-opt org-babel-data-names t)
+	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
+  "Regular expression used to match result lines.
+If the results are associated with a hash key then the hash will
+be saved in the second match data.")
+
+(defvar org-babel-result-w-name-regexp
+  (concat org-babel-result-regexp
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
+
+(defvar org-babel-min-lines-for-block-output 10
+  "The minimum number of lines for block output.
+If number of lines of output is equal to or exceeds this
+value, the output is placed in a #+begin_example...#+end_example
+block.  Otherwise the output is marked as literal by inserting
+colons at the starts of the lines.  This variable only takes
+effect if the :results output option is in effect.")
+
+(defvar org-babel-noweb-error-langs nil
+  "Languages for which Babel will raise literate programming errors.
+List of languages for which errors should be raised when the
+source code block satisfying a noweb reference in this language
+can not be resolved.")
+
+(defvar org-babel-hash-show 4
+  "Number of initial characters to show of a hidden results hash.")
+
+(defvar org-babel-after-execute-hook nil
+  "Hook for functions to be called after `org-babel-execute-src-block'")
+
+(defun org-babel-named-src-block-regexp-for-name (name)
+  "This generates a regexp used to match a src block named NAME."
+  (concat org-babel-src-name-regexp (regexp-quote name)
+	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
+	  (substring org-babel-src-block-regexp 1)))
+
+(defun org-babel-named-data-regexp-for-name (name)
+  "This generates a regexp used to match data named NAME."
+  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
+
+;;; ob-keys
+
+(defvar org-babel-key-prefix "\C-c\C-v"
+  "The key prefix for Babel interactive key-bindings.
+See `org-babel-key-bindings' for the list of interactive babel
+functions which are assigned key bindings, and see
+`org-babel-map' for the actual babel keymap.")
+
+(defvar org-babel-map (make-sparse-keymap)
+  "The keymap for interactive Babel functions.")
+
+;;;###autoload
+(defun org-babel-describe-bindings ()
+  "Describe all keybindings behind `org-babel-key-prefix'."
+  (interactive)
+  (describe-bindings org-babel-key-prefix))
+
+(defvar org-babel-key-bindings
+  '(("p" . org-babel-previous-src-block)
+    ("\C-p" . org-babel-previous-src-block)
+    ("n" . org-babel-next-src-block)
+    ("\C-n" . org-babel-next-src-block)
+    ("e" . org-babel-execute-maybe)
+    ("\C-e" . org-babel-execute-maybe)
+    ("o" . org-babel-open-src-block-result)
+    ("\C-o" . org-babel-open-src-block-result)
+    ("\C-v" . org-babel-expand-src-block)
+    ("v" . org-babel-expand-src-block)
+    ("u" . org-babel-goto-src-block-head)
+    ("\C-u" . org-babel-goto-src-block-head)
+    ("g" . org-babel-goto-named-src-block)
+    ("r" . org-babel-goto-named-result)
+    ("\C-r" . org-babel-goto-named-result)
+    ("\C-b" . org-babel-execute-buffer)
+    ("b" . org-babel-execute-buffer)
+    ("\C-s" . org-babel-execute-subtree)
+    ("s" . org-babel-execute-subtree)
+    ("\C-d" . org-babel-demarcate-block)
+    ("d" . org-babel-demarcate-block)
+    ("\C-t" . org-babel-tangle)
+    ("t" . org-babel-tangle)
+    ("\C-f" . org-babel-tangle-file)
+    ("f" . org-babel-tangle-file)
+    ("\C-c" . org-babel-check-src-block)
+    ("c" . org-babel-check-src-block)
+    ("\C-j" . org-babel-insert-header-arg)
+    ("j" . org-babel-insert-header-arg)
+    ("\C-l" . org-babel-load-in-session)
+    ("l" . org-babel-load-in-session)
+    ("\C-i" . org-babel-lob-ingest)
+    ("i" . org-babel-lob-ingest)
+    ("\C-I" . org-babel-view-src-block-info)
+    ("I" . org-babel-view-src-block-info)
+    ("\C-z" . org-babel-switch-to-session)
+    ("z" . org-babel-switch-to-session-with-code)
+    ("\C-a" . org-babel-sha1-hash)
+    ("a" . org-babel-sha1-hash)
+    ("h" . org-babel-describe-bindings)
+    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("\C-\M-h" . org-babel-mark-block))
+  "Alist of key bindings and interactive Babel functions.
+This list associates interactive Babel functions
+with keys.  Each element of this list will add an entry to the
+`org-babel-map' using the letter key which is the `car' of the
+a-list placed behind the generic `org-babel-key-prefix'.")
+
+;;; functions
+(defvar call-process-region)
+
+;;;###autoload
+(defun org-babel-execute-src-block (&optional arg info params)
+  "Execute the current source code block.
+Insert the results of execution into the buffer.  Source code
+execution and the collection and formatting of results can be
+controlled through a variety of header arguments.
+
+With prefix argument ARG, force re-execution even if an existing
+result cached in the buffer would otherwise have been returned.
+
+Optionally supply a value for INFO in the form returned by
+`org-babel-get-src-block-info'.
+
+Optionally supply a value for PARAMS which will be merged with
+the header arguments specified at the front of the source code
+block."
+  (interactive)
+  (let ((info (or info (org-babel-get-src-block-info))))
+    (when (org-babel-confirm-evaluate
+	   (let ((i info))
+	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
+	     i))
+      (let* ((lang (nth 0 info))
+	     (params (if params
+			 (org-babel-process-params
+			  (org-babel-merge-params (nth 2 info) params))
+		       (nth 2 info)))
+	     (cache? (and (not arg) (cdr (assoc :cache params))
+			  (string= "yes" (cdr (assoc :cache params)))))
+	     (result-params (cdr (assoc :result-params params)))
+	     (new-hash (when cache? (org-babel-sha1-hash info)))
+	     (old-hash (when cache? (org-babel-current-result-hash)))
+	     (body (setf (nth 1 info)
+			 (if (org-babel-noweb-p params :eval)
+			     (org-babel-expand-noweb-references info)
+			   (nth 1 info))))
+	     (dir (cdr (assoc :dir params)))
+	     (default-directory
+	       (or (and dir (file-name-as-directory (expand-file-name dir)))
+		   default-directory))
+	     (org-babel-call-process-region-original
+	      (if (boundp 'org-babel-call-process-region-original)
+		  org-babel-call-process-region-original
+		(symbol-function 'call-process-region)))
+	     (indent (car (last info)))
+	     result cmd)
+	(unwind-protect
+	    (let ((call-process-region
+		   (lambda (&rest args)
+		     (apply 'org-babel-tramp-handle-call-process-region args))))
+	      (let ((lang-check (lambda (f)
+				  (let ((f (intern (concat "org-babel-execute:" f))))
+				    (when (fboundp f) f)))))
+		(setq cmd
+		      (or (funcall lang-check lang)
+			  (funcall lang-check (symbol-name
+					       (cdr (assoc lang org-src-lang-modes))))
+			  (error "No org-babel-execute function for %s!" lang))))
+	      (if (and (not arg) new-hash (equal new-hash old-hash))
+		  (save-excursion ;; return cached result
+		    (goto-char (org-babel-where-is-src-block-result nil info))
+		    (end-of-line 1) (forward-char 1)
+		    (setq result (org-babel-read-result))
+		    (message (replace-regexp-in-string
+			      "%" "%%" (format "%S" result))) result)
+		(message "executing %s code block%s..."
+			 (capitalize lang)
+			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
+		(if (member "none" result-params)
+		    (progn
+		      (funcall cmd body params)
+		      (message "result silenced"))
+		(setq result
+		      ((lambda (result)
+			 (if (and (eq (cdr (assoc :result-type params)) 'value)
+				  (or (member "vector" result-params)
+				      (member "table" result-params))
+				  (not (listp result)))
+			     (list (list result)) result))
+		       (funcall cmd body params)))
+		;; if non-empty result and :file then write to :file
+		(when (cdr (assoc :file params))
+		  (when result
+		    (with-temp-file (cdr (assoc :file params))
+		      (insert
+		       (org-babel-format-result
+			result (cdr (assoc :sep (nth 2 info)))))))
+		  (setq result (cdr (assoc :file params))))
+		(org-babel-insert-result
+		 result result-params info new-hash indent lang)
+		(run-hooks 'org-babel-after-execute-hook)
+		result
+		)))
+	  (setq call-process-region 'org-babel-call-process-region-original))))))
+
+(defun org-babel-expand-body:generic (body params &optional var-lines)
+  "Expand BODY with PARAMS.
+Expand a block of code with org-babel according to its header
+arguments.  This generic implementation of body expansion is
+called for languages which have not defined their own specific
+org-babel-expand-body:lang function."
+  (mapconcat #'identity (append var-lines (list body)) "\n"))
+
+;;;###autoload
+(defun org-babel-expand-src-block (&optional arg info params)
+  "Expand the current source code block.
+Expand according to the source code block's header
+arguments and pop open the results in a preview buffer."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+	 (params (setf (nth 2 info)
+                       (sort (org-babel-merge-params (nth 2 info) params)
+                             (lambda (el1 el2) (string< (symbol-name (car el1))
+							(symbol-name (car el2)))))))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+			 (org-babel-expand-noweb-references info) (nth 1 info))))
+         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
+	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
+					  lang)))
+         (expanded
+	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
+	    (org-babel-expand-body:generic
+	     body params (and (fboundp assignments-cmd)
+			      (funcall assignments-cmd params))))))
+    (org-edit-src-code
+     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
+
+(defun org-babel-edit-distance (s1 s2)
+  "Return the edit (levenshtein) distance between strings S1 S2."
+  (let* ((l1 (length s1))
+	 (l2 (length s2))
+	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
+				(number-sequence 1 (1+ l1)))))
+	 (in (lambda (i j) (aref (aref dist i) j))))
+    (setf (aref (aref dist 0) 0) 0)
+    (dolist (j (number-sequence 1 l2))
+      (setf (aref (aref dist 0) j) j))
+    (dolist (i (number-sequence 1 l1))
+      (setf (aref (aref dist i) 0) i)
+      (dolist (j (number-sequence 1 l2))
+	(setf (aref (aref dist i) j)
+	      (min
+	       (1+ (funcall in (1- i) j))
+	       (1+ (funcall in i (1- j)))
+	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
+		  (funcall in (1- i) (1- j)))))))
+    (funcall in l1 l2)))
+
+(defun org-babel-combine-header-arg-lists (original &rest others)
+  "Combine a number of lists of header argument names and arguments."
+  (let ((results (copy-sequence original)))
+    (dolist (new-list others)
+      (dolist (arg-pair new-list)
+	(let ((header (car arg-pair))
+	      (args (cdr arg-pair)))
+	  (setq results
+		(cons arg-pair (org-remove-if
+				(lambda (pair) (equal header (car pair)))
+				results))))))
+    results))
+
+;;;###autoload
+(defun org-babel-check-src-block ()
+  "Check for misspelled header arguments in the current code block."
+  (interactive)
+  ;; TODO: report malformed code block
+  ;; TODO: report incompatible combinations of header arguments
+  ;; TODO: report uninitialized variables
+  (let ((too-close 2) ;; <- control closeness to report potential match
+	(names (mapcar #'symbol-name org-babel-header-arg-names)))
+    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
+			    (and (org-babel-where-is-src-block-head)
+				 (org-babel-parse-header-arguments
+				  (org-no-properties
+				   (match-string 4))))))
+      (dolist (name names)
+	(when (and (not (string= header name))
+		   (<= (org-babel-edit-distance header name) too-close)
+		   (not (member header names)))
+	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
+		 header name))))
+    (message "No suspicious header arguments found.")))
+
+;;;###autoload
+(defun org-babel-insert-header-arg ()
+  "Insert a header argument selecting from lists of common args and values."
+  (interactive)
+  (let* ((lang (car (org-babel-get-src-block-info 'light)))
+	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
+	 (headers (org-babel-combine-header-arg-lists
+		   org-babel-common-header-args-w-values
+		   (if (boundp lang-headers) (eval lang-headers) nil)))
+	 (arg (org-icompleting-read
+	       "Header Arg: "
+	       (mapcar
+		(lambda (header-spec) (symbol-name (car header-spec)))
+		headers))))
+    (insert ":" arg)
+    (let ((vals (cdr (assoc (intern arg) headers))))
+      (when vals
+	(insert
+	 " "
+	 (cond
+	  ((eq vals :any)
+	   (read-from-minibuffer "value: "))
+	  ((listp vals)
+	   (mapconcat
+	    (lambda (group)
+	      (let ((arg (org-icompleting-read
+			  "value: "
+			  (cons "default" (mapcar #'symbol-name group)))))
+		(if (and arg (not (string= "default" arg)))
+		    (concat arg " ")
+		  "")))
+	    vals ""))))))))
+
+;; Add support for completing-read insertion of header arguments after ":"
+(defun org-babel-header-arg-expand ()
+  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
+  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
+    (org-babel-enter-header-arg-w-completion (match-string 2))))
+
+(defun org-babel-enter-header-arg-w-completion (&optional lang)
+  "Insert header argument appropriate for LANG with completion."
+  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
+         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
+	 (headers-w-values (org-babel-combine-header-arg-lists
+			    org-babel-common-header-args-w-values lang-headers))
+         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
+         (header (org-completing-read "Header Arg: " headers))
+         (args (cdr (assoc (intern header) headers-w-values)))
+         (arg (when (and args (listp args))
+                (org-completing-read
+                 (format "%s: " header)
+                 (mapcar #'symbol-name (apply #'append args))))))
+    (insert (concat header " " (or arg "")))
+    (cons header arg)))
+
+(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
+
+;;;###autoload
+(defun org-babel-load-in-session (&optional arg info)
+  "Load the body of the current source-code block.
+Evaluate the header arguments for the source block before
+entering the session.  After loading the body this pops open the
+session."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (params (nth 2 info))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+                         (org-babel-expand-noweb-references info)
+		       (nth 1 info))))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (cmd (intern (concat "org-babel-load-session:" lang))))
+    (unless (fboundp cmd)
+      (error "No org-babel-load-session function for %s!" lang))
+    (pop-to-buffer (funcall cmd session body params))
+    (end-of-line 1)))
+
+;;;###autoload
+(defun org-babel-initiate-session (&optional arg info)
+  "Initiate session for current code block.
+If called with a prefix argument then resolve any variable
+references in the header arguments and assign these variables in
+the session.  Copy the body of the code block to the kill ring."
+  (interactive "P")
+  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+         (params (nth 2 info))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
+	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
+    (if (and (stringp session) (string= session "none"))
+	(error "This block is not using a session!"))
+    (unless (fboundp init-cmd)
+      (error "No org-babel-initiate-session function for %s!" lang))
+    (with-temp-buffer (insert (org-babel-trim body))
+                      (copy-region-as-kill (point-min) (point-max)))
+    (when arg
+      (unless (fboundp prep-cmd)
+	(error "No org-babel-prep-session function for %s!" lang))
+      (funcall prep-cmd session params))
+    (funcall init-cmd session params)))
+
+;;;###autoload
+(defun org-babel-switch-to-session (&optional arg info)
+  "Switch to the session of the current code block.
+Uses `org-babel-initiate-session' to start the session.  If called
+with a prefix argument then this is passed on to
+`org-babel-initiate-session'."
+  (interactive "P")
+  (pop-to-buffer (org-babel-initiate-session arg info))
+  (end-of-line 1))
+
+(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
+
+;;;###autoload
+(defun org-babel-switch-to-session-with-code (&optional arg info)
+  "Switch to code buffer and display session."
+  (interactive "P")
+  (let ((swap-windows
+	 (lambda ()
+	   (let ((other-window-buffer (window-buffer (next-window))))
+	     (set-window-buffer (next-window) (current-buffer))
+	     (set-window-buffer (selected-window) other-window-buffer))
+	   (other-window 1)))
+	(info (org-babel-get-src-block-info))
+	(org-src-window-setup 'reorganize-frame))
+    (save-excursion
+      (org-babel-switch-to-session arg info))
+    (org-edit-src-code)
+    (funcall swap-windows)))
+
+(defmacro org-babel-do-in-edit-buffer (&rest body)
+  "Evaluate BODY in edit buffer if there is a code block at point.
+Return t if a code block was found at point, nil otherwise."
+  `(let ((org-src-window-setup 'switch-invisibly))
+     (when (and (org-babel-where-is-src-block-head)
+		(org-edit-src-code nil nil nil))
+       (unwind-protect (progn ,@body)
+	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
+	     (org-edit-src-exit)))
+       t)))
+(def-edebug-spec org-babel-do-in-edit-buffer (body))
+
+(defun org-babel-do-key-sequence-in-edit-buffer (key)
+  "Read key sequence and execute the command in edit buffer.
+Enter a key sequence to be executed in the language major-mode
+edit buffer.  For example, TAB will alter the contents of the
+Org-mode code block according to the effect of TAB in the
+language major-mode buffer.  For languages that support
+interactive sessions, this can be used to send code from the Org
+buffer to the session for evaluation using the native major-mode
+evaluation mechanisms."
+  (interactive "kEnter key-sequence to execute in edit buffer: ")
+  (org-babel-do-in-edit-buffer
+   (call-interactively
+    (key-binding (or key (read-key-sequence nil))))))
+
+(defvar org-bracket-link-regexp)
+
+;;;###autoload
+(defun org-babel-open-src-block-result (&optional re-run)
+  "If `point' is on a src block then open the results of the
+source code block, otherwise return nil.  With optional prefix
+argument RE-RUN the source-code block is evaluated even if
+results already exist."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info)))
+    (when info
+      (save-excursion
+	;; go to the results, if there aren't any then run the block
+	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
+		       (progn (org-babel-execute-src-block)
+			      (org-babel-where-is-src-block-result))))
+	(end-of-line 1)
+	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
+	;; open the results
+	(if (looking-at org-bracket-link-regexp)
+	    ;; file results
+	    (org-open-at-point)
+	  (let ((r (org-babel-format-result
+		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
+	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
+	    (delete-region (point-min) (point-max))
+	    (insert r)))
+	t))))
+
+;;;###autoload
+(defmacro org-babel-map-src-blocks (file &rest body)
+  "Evaluate BODY forms on each source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer.  During evaluation of BODY the following local variables
+are set relative to the currently matched code block.
+
+full-block ------- string holding the entirety of the code block
+beg-block -------- point at the beginning of the code block
+end-block -------- point at the end of the matched code block
+lang ------------- string holding the language of the code block
+beg-lang --------- point at the beginning of the lang
+end-lang --------- point at the end of the lang
+switches --------- string holding the switches
+beg-switches ----- point at the beginning of the switches
+end-switches ----- point at the end of the switches
+header-args ------ string holding the header-args
+beg-header-args -- point at the beginning of the header-args
+end-header-args -- point at the end of the header-args
+body ------------- string holding the body of the code block
+beg-body --------- point at the beginning of the body
+end-body --------- point at the end of the body"
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-src-block-regexp nil t)
+	   (goto-char (match-beginning 0))
+	   (let ((full-block (match-string 0))
+		 (beg-block (match-beginning 0))
+		 (end-block (match-end 0))
+		 (lang (match-string 2))
+		 (beg-lang (match-beginning 2))
+		 (end-lang (match-end 2))
+		 (switches (match-string 3))
+		 (beg-switches (match-beginning 3))
+		 (end-switches (match-end 3))
+		 (header-args (match-string 4))
+		 (beg-header-args (match-beginning 4))
+		 (end-header-args (match-end 4))
+		 (body (match-string 5))
+		 (beg-body (match-beginning 5))
+		 (end-body (match-end 5)))
+	     ,@body
+	     (goto-char end-block))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-src-blocks (form body))
+
+;;;###autoload
+(defmacro org-babel-map-inline-src-blocks (file &rest body)
+  "Evaluate BODY forms on each inline source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-inline-src-blocks (form body))
+
+(defvar org-babel-lob-one-liner-regexp)
+
+;;;###autoload
+(defmacro org-babel-map-call-lines (file &rest body)
+  "Evaluate BODY forms on each call line in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-call-lines (form body))
+
+;;;###autoload
+(defmacro org-babel-map-executables (file &rest body)
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file"))
+	(rx (make-symbol "rx")))
+    `(let* ((,tempvar ,file)
+	    (,rx (concat "\\(" org-babel-src-block-regexp
+			 "\\|" org-babel-inline-src-block-regexp
+			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward ,rx nil t)
+	   (goto-char (match-beginning 1))
+	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-executables (form body))
+
+;;;###autoload
+(defun org-babel-execute-buffer (&optional arg)
+  "Execute source code blocks in a buffer.
+Call `org-babel-execute-src-block' on every source block in
+the current buffer."
+  (interactive "P")
+  (org-babel-eval-wipe-error-buffer)
+  (org-save-outline-visibility t
+    (org-babel-map-executables nil
+      (if (looking-at org-babel-lob-one-liner-regexp)
+          (org-babel-lob-execute-maybe)
+        (org-babel-execute-src-block arg)))))
+
+;;;###autoload
+(defun org-babel-execute-subtree (&optional arg)
+  "Execute source code blocks in a subtree.
+Call `org-babel-execute-src-block' on every source block in
+the current subtree."
+  (interactive "P")
+  (save-restriction
+    (save-excursion
+      (org-narrow-to-subtree)
+      (org-babel-execute-buffer arg)
+      (widen))))
+
+;;;###autoload
+(defun org-babel-sha1-hash (&optional info)
+  "Generate an sha1 hash based on the value of info."
+  (interactive)
+  (let ((print-level nil)
+	(info (or info (org-babel-get-src-block-info))))
+    (setf (nth 2 info)
+	  (sort (copy-sequence (nth 2 info))
+		(lambda (a b) (string< (car a) (car b)))))
+    (let* ((rm (lambda (lst)
+		 (dolist (p '("replace" "silent" "none"
+			      "append" "prepend"))
+		   (setq lst (remove p lst)))
+		 lst))
+	   (norm (lambda (arg)
+		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
+				(copy-sequence (cdr arg))
+			      (cdr arg))))
+		     (when (and v (not (and (sequencep v)
+					    (not (consp v))
+					    (= (length v) 0))))
+		       (cond
+			((and (listp v) ; lists are sorted
+			      (member (car arg) '(:result-params)))
+			 (sort (funcall rm v) #'string<))
+			((and (stringp v) ; strings are sorted
+			      (member (car arg) '(:results :exports)))
+			 (mapconcat #'identity (sort (funcall rm (split-string v))
+						     #'string<) " "))
+			(t v)))))))
+      ((lambda (hash)
+	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
+       (let ((it (format "%s-%s"
+			 (mapconcat
+			  #'identity
+			  (delq nil (mapcar (lambda (arg)
+					      (let ((normalized (funcall norm arg)))
+						(when normalized
+						  (format "%S" normalized))))
+					    (nth 2 info))) ":")
+			 (nth 1 info))))
+	 (sha1 it))))))
+
+(defun org-babel-current-result-hash ()
+  "Return the current in-buffer hash."
+  (org-babel-where-is-src-block-result)
+  (org-no-properties (match-string 3)))
+
+(defun org-babel-set-current-result-hash (hash)
+  "Set the current in-buffer hash to HASH."
+  (org-babel-where-is-src-block-result)
+  (save-excursion (goto-char (match-beginning 3))
+		  ;; (mapc #'delete-overlay (overlays-at (point)))
+		  (replace-match hash nil nil nil 3)
+		  (org-babel-hide-hash)))
+
+(defun org-babel-hide-hash ()
+  "Hide the hash in the current results line.
+Only the initial `org-babel-hash-show' characters of the hash
+will remain visible."
+  (add-to-invisibility-spec '(org-babel-hide-hash . t))
+  (save-excursion
+    (when (and (re-search-forward org-babel-result-regexp nil t)
+               (match-string 3))
+      (let* ((start (match-beginning 3))
+             (hide-start (+ org-babel-hash-show start))
+             (end (match-end 3))
+             (hash (match-string 3))
+             ov1 ov2)
+        (setq ov1 (make-overlay start hide-start))
+        (setq ov2 (make-overlay hide-start end))
+        (overlay-put ov2 'invisible 'org-babel-hide-hash)
+        (overlay-put ov1 'babel-hash hash)))))
+
+(defun org-babel-hide-all-hashes ()
+  "Hide the hash in the current buffer.
+Only the initial `org-babel-hash-show' characters of each hash
+will remain visible.  This function should be called as part of
+the `org-mode-hook'."
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (goto-char (match-beginning 0))
+      (org-babel-hide-hash)
+      (goto-char (match-end 0)))))
+(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
+
+(defun org-babel-hash-at-point (&optional point)
+  "Return the value of the hash at POINT.
+The hash is also added as the last element of the kill ring.
+This can be called with C-c C-c."
+  (interactive)
+  (let ((hash (car (delq nil (mapcar
+			      (lambda (ol) (overlay-get ol 'babel-hash))
+                              (overlays-at (or point (point))))))))
+    (when hash (kill-new hash) (message hash))))
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
+
+(defun org-babel-result-hide-spec ()
+  "Hide portions of results lines.
+Add `org-babel-hide-result' as an invisibility spec for hiding
+portions of results lines."
+  (add-to-invisibility-spec '(org-babel-hide-result . t)))
+(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
+
+(defvar org-babel-hide-result-overlays nil
+  "Overlays hiding results.")
+
+(defun org-babel-result-hide-all ()
+  "Fold all results in the current buffer."
+  (interactive)
+  (org-babel-show-result-all)
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (save-excursion (goto-char (match-beginning 0))
+                      (org-babel-hide-result-toggle-maybe)))))
+
+(defun org-babel-show-result-all ()
+  "Unfold all results in the current buffer."
+  (mapc 'delete-overlay org-babel-hide-result-overlays)
+  (setq org-babel-hide-result-overlays nil))
+
+;;;###autoload
+(defun org-babel-hide-result-toggle-maybe ()
+  "Toggle visibility of result at point."
+  (interactive)
+  (let ((case-fold-search t))
+    (if (save-excursion
+          (beginning-of-line 1)
+          (looking-at org-babel-result-regexp))
+        (progn (org-babel-hide-result-toggle)
+               t) ;; to signal that we took action
+      nil))) ;; to signal that we did not
+
+(defun org-babel-hide-result-toggle (&optional force)
+  "Toggle the visibility of the current result."
+  (interactive)
+  (save-excursion
+    (beginning-of-line)
+    (if (re-search-forward org-babel-result-regexp nil t)
+        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
+	      (end (progn
+		     (while (looking-at org-babel-multi-line-header-regexp)
+		       (forward-line 1))
+		     (goto-char (- (org-babel-result-end) 1)) (point)))
+	      ov)
+          (if (memq t (mapcar (lambda (overlay)
+                                (eq (overlay-get overlay 'invisible)
+				    'org-babel-hide-result))
+                              (overlays-at start)))
+              (if (or (not force) (eq force 'off))
+                  (mapc (lambda (ov)
+                          (when (member ov org-babel-hide-result-overlays)
+                            (setq org-babel-hide-result-overlays
+                                  (delq ov org-babel-hide-result-overlays)))
+                          (when (eq (overlay-get ov 'invisible)
+                                    'org-babel-hide-result)
+                            (delete-overlay ov)))
+                        (overlays-at start)))
+            (setq ov (make-overlay start end))
+            (overlay-put ov 'invisible 'org-babel-hide-result)
+            ;; make the block accessible to isearch
+            (overlay-put
+             ov 'isearch-open-invisible
+             (lambda (ov)
+               (when (member ov org-babel-hide-result-overlays)
+                 (setq org-babel-hide-result-overlays
+                       (delq ov org-babel-hide-result-overlays)))
+               (when (eq (overlay-get ov 'invisible)
+                         'org-babel-hide-result)
+                 (delete-overlay ov))))
+            (push ov org-babel-hide-result-overlays)))
+      (error "Not looking at a result line"))))
+
+;; org-tab-after-check-for-cycling-hook
+(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
+;; Remove overlays when changing major mode
+(add-hook 'org-mode-hook
+	  (lambda () (org-add-hook 'change-major-mode-hook
+				   'org-babel-show-result-all 'append 'local)))
+
+(defvar org-file-properties)
+(defun org-babel-params-from-properties (&optional lang)
+  "Retrieve parameters specified as properties.
+Return an association list of any source block params which
+may be specified in the properties of the current outline entry."
+  (save-match-data
+    (let (val sym)
+      (org-babel-parse-multiple-vars
+       (delq nil
+	     (mapcar
+	      (lambda (header-arg)
+		(and (setq val (org-entry-get (point) header-arg t))
+		     (cons (intern (concat ":" header-arg))
+			   (org-babel-read val))))
+	      (mapcar
+	       #'symbol-name
+	       (mapcar
+		#'car
+		(org-babel-combine-header-arg-lists
+		 org-babel-common-header-args-w-values
+		 (progn
+		   (setq sym (intern (concat "org-babel-header-args:" lang)))
+		   (and (boundp sym) (eval sym))))))))))))
+
+(defvar org-src-preserve-indentation)
+(defun org-babel-parse-src-block-match ()
+  "Parse the results from a match of the `org-babel-src-block-regexp'."
+  (let* ((block-indentation (length (match-string 1)))
+	 (lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
+	 (switches (match-string 3))
+         (body (org-no-properties
+		(let* ((body (match-string 5))
+		       (sub-length (- (length body) 1)))
+		  (if (and (> sub-length 0)
+			   (string= "\n" (substring body sub-length)))
+		      (substring body 0 sub-length)
+		    (or body "")))))
+	 (preserve-indentation (or org-src-preserve-indentation
+				   (save-match-data
+				     (string-match "-i\\>" switches)))))
+    (list lang
+          ;; get block body less properties, protective commas, and indentation
+          (with-temp-buffer
+            (save-match-data
+              (insert (org-unescape-code-in-string body))
+	      (unless preserve-indentation (org-do-remove-indentation))
+              (buffer-string)))
+	  (org-babel-merge-params
+	   org-babel-default-header-args
+           (org-babel-params-from-properties lang)
+	   (if (boundp lang-headers) (eval lang-headers) nil)
+	   (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) ""))))
+	  switches
+	  block-indentation)))
+
+(defun org-babel-parse-inline-src-block-match ()
+  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
+  (let* ((lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
+    (list lang
+          (org-unescape-code-in-string (org-no-properties (match-string 5)))
+          (org-babel-merge-params
+           org-babel-default-inline-header-args
+           (org-babel-params-from-properties lang)
+           (if (boundp lang-headers) (eval lang-headers) nil)
+           (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) "")))))))
+
+(defun org-babel-balanced-split (string alts)
+  "Split STRING on instances of ALTS.
+ALTS is a cons of two character options where each option may be
+either the numeric code of a single character or a list of
+character alternatives.  For example to split on balanced
+instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
+  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
+	 (matched (lambda (ch last)
+		    (if (consp alts)
+			(and (funcall matches ch (cdr alts))
+			     (funcall matches last (car alts)))
+		      (funcall matches ch alts))))
+	 (balance 0) (last 0)
+	 quote partial lst)
+    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
+	    (setq balance (+ balance
+			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
+				   ((or (equal 93 ch) (equal 41 ch)) -1)
+				   (t 0))))
+	    (when (and (equal 34 ch) (not (equal 92 last)))
+	      (setq quote (not quote)))
+	    (setq partial (cons ch partial))
+	    (when (and (= balance 0) (not quote) (funcall matched ch last))
+	      (setq lst (cons (apply #'string (nreverse
+					       (if (consp alts)
+						   (cddr partial)
+						 (cdr partial))))
+			      lst))
+	      (setq partial nil))
+	    (setq last ch))
+	  (string-to-list string))
+    (nreverse (cons (apply #'string (nreverse partial)) lst))))
+
+(defun org-babel-join-splits-near-ch (ch list)
+  "Join splits where \"=\" is on either end of the split."
+  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
+	(first= (lambda (str) (= ch (aref str 0)))))
+    (reverse
+     (org-reduce (lambda (acc el)
+		   (let ((head (car acc)))
+		     (if (and head (or (funcall last= head) (funcall first= el)))
+			 (cons (concat head el) (cdr acc))
+		       (cons el acc))))
+		 list :initial-value nil))))
+
+(defun org-babel-parse-header-arguments (arg-string)
+  "Parse a string of header arguments returning an alist."
+  (when (> (length arg-string) 0)
+    (org-babel-parse-multiple-vars
+     (delq nil
+	   (mapcar
+	    (lambda (arg)
+	      (if (string-match
+		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
+		   arg)
+		  (cons (intern (match-string 1 arg))
+			(org-babel-read (org-babel-chomp (match-string 2 arg))))
+		(cons (intern (org-babel-chomp arg)) nil)))
+	    ((lambda (raw)
+	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
+	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
+
+(defun org-babel-parse-multiple-vars (header-arguments)
+  "Expand multiple variable assignments behind a single :var keyword.
+
+This allows expression of multiple variables with one :var as
+shown below.
+
+#+PROPERTY: var foo=1, bar=2"
+  (let (results)
+    (mapc (lambda (pair)
+	    (if (eq (car pair) :var)
+		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
+			(org-babel-join-splits-near-ch
+			 61 (org-babel-balanced-split (cdr pair) 32)))
+	      (push pair results)))
+	  header-arguments)
+    (nreverse results)))
+
+(defun org-babel-process-params (params)
+  "Expand variables in PARAMS and add summary parameters."
+  (let* ((processed-vars (mapcar (lambda (el)
+				   (if (consp (cdr el))
+				       (cdr el)
+				     (org-babel-ref-parse (cdr el))))
+				 (org-babel-get-header params :var)))
+	 (vars-and-names (if (and (assoc :colname-names params)
+				  (assoc :rowname-names params))
+			     (list processed-vars)
+			   (org-babel-disassemble-tables
+			    processed-vars
+			    (cdr (assoc :hlines params))
+			    (cdr (assoc :colnames params))
+			    (cdr (assoc :rownames params)))))
+	 (raw-result (or (cdr (assoc :results params)) ""))
+	 (result-params (append
+			 (split-string (if (stringp raw-result)
+					   raw-result
+					 (eval raw-result)))
+			 (cdr (assoc :result-params params)))))
+    (append
+     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
+     (list
+      (cons :colname-names (or (cdr (assoc :colname-names params))
+			       (cadr  vars-and-names)))
+      (cons :rowname-names (or (cdr (assoc :rowname-names params))
+			       (caddr vars-and-names)))
+      (cons :result-params result-params)
+      (cons :result-type  (cond ((member "output" result-params) 'output)
+				((member "value" result-params) 'value)
+				(t 'value))))
+     (org-babel-get-header params :var 'other))))
+
+;; row and column names
+(defun org-babel-del-hlines (table)
+  "Remove all 'hlines from TABLE."
+  (remove 'hline table))
+
+(defun org-babel-get-colnames (table)
+  "Return the column names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names."
+  (if (equal 'hline (nth 1 table))
+      (cons (cddr table) (car table))
+    (cons (cdr table) (car table))))
+
+(defun org-babel-get-rownames (table)
+  "Return the row names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names.  Note: this function removes any hlines in TABLE."
+  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
+	 (width (apply 'max
+		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
+	 (table (funcall trans (mapcar (lambda (row)
+					 (if (not (equal row 'hline))
+					     row
+					   (setq row '())
+					   (dotimes (n width)
+					     (setq row (cons 'hline row)))
+					   row))
+				       table))))
+    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
+		  (funcall trans (cdr table)))
+	  (remove 'hline (car table)))))
+
+(defun org-babel-put-colnames (table colnames)
+  "Add COLNAMES to TABLE if they exist."
+  (if colnames (apply 'list colnames 'hline table) table))
+
+(defun org-babel-put-rownames (table rownames)
+  "Add ROWNAMES to TABLE if they exist."
+  (if rownames
+      (mapcar (lambda (row)
+                (if (listp row)
+                    (cons (or (pop rownames) "") row)
+                  row)) table)
+    table))
+
+(defun org-babel-pick-name (names selector)
+  "Select one out of an alist of row or column names.
+SELECTOR can be either a list of names in which case those names
+will be returned directly, or an index into the list NAMES in
+which case the indexed names will be return."
+  (if (listp selector)
+      selector
+    (when names
+      (if (and selector (symbolp selector) (not (equal t selector)))
+	  (cdr (assoc selector names))
+	(if (integerp selector)
+	    (nth (- selector 1) names)
+	  (cdr (car (last names))))))))
+
+(defun org-babel-disassemble-tables (vars hlines colnames rownames)
+  "Parse tables for further processing.
+Process the variables in VARS according to the HLINES,
+ROWNAMES and COLNAMES header arguments.  Return a list consisting
+of the vars, cnames and rnames."
+  (let (cnames rnames)
+    (list
+     (mapcar
+      (lambda (var)
+        (when (listp (cdr var))
+          (when (and (not (equal colnames "no"))
+                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
+                                       (not (member 'hline (cddr (cdr var)))))))
+            (let ((both (org-babel-get-colnames (cdr var))))
+              (setq cnames (cons (cons (car var) (cdr both))
+                                 cnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and rownames (not (equal rownames "no")))
+            (let ((both (org-babel-get-rownames (cdr var))))
+              (setq rnames (cons (cons (car var) (cdr both))
+                                 rnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and hlines (not (equal hlines "yes")))
+            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
+        var)
+      vars)
+     (reverse cnames) (reverse rnames))))
+
+(defun org-babel-reassemble-table (table colnames rownames)
+  "Add column and row names to a table.
+Given a TABLE and set of COLNAMES and ROWNAMES add the names
+to the table for reinsertion to org-mode."
+  (if (listp table)
+      ((lambda (table)
+         (if (and colnames (listp (car table)) (= (length (car table))
+                                                  (length colnames)))
+             (org-babel-put-colnames table colnames) table))
+       (if (and rownames (= (length table) (length rownames)))
+           (org-babel-put-rownames table rownames) table))
+    table))
+
+(defun org-babel-where-is-src-block-head ()
+  "Find where the current source block begins.
+Return the point at the beginning of the current source
+block.  Specifically at the beginning of the #+BEGIN_SRC line.
+If the point is not on a source block then return nil."
+  (let ((initial (point)) (case-fold-search t) top bottom)
+    (or
+     (save-excursion ;; on a source name line or a #+header line
+       (beginning-of-line 1)
+       (and (or (looking-at org-babel-src-name-regexp)
+		(looking-at org-babel-multi-line-header-regexp))
+	    (progn
+	      (while (and (forward-line 1)
+			  (or (looking-at org-babel-src-name-regexp)
+			      (looking-at org-babel-multi-line-header-regexp))))
+	      (looking-at org-babel-src-block-regexp))
+            (point)))
+     (save-excursion ;; on a #+begin_src line
+       (beginning-of-line 1)
+       (and (looking-at org-babel-src-block-regexp)
+            (point)))
+     (save-excursion ;; inside a src block
+       (and
+        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
+        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
+        (< top initial) (< initial bottom)
+        (progn (goto-char top) (beginning-of-line 1)
+	       (looking-at org-babel-src-block-regexp))
+        (point))))))
+
+;;;###autoload
+(defun org-babel-goto-src-block-head ()
+  "Go to the beginning of the current code block."
+  (interactive)
+  ((lambda (head)
+     (if head (goto-char head) (error "Not currently in a code block")))
+   (org-babel-where-is-src-block-head)))
+
+;;;###autoload
+(defun org-babel-goto-named-src-block (name)
+  "Go to a named source-code block."
+  (interactive
+   (let ((completion-ignore-case t)
+	 (case-fold-search t)
+	 (under-point (thing-at-point 'line)))
+     (list (org-icompleting-read
+	    "source-block name: " (org-babel-src-block-names) nil t
+	    (cond
+	     ;; noweb
+	     ((string-match (org-babel-noweb-wrap) under-point)
+	      (let ((block-name (match-string 1 under-point)))
+		(string-match "[^(]*" block-name)
+		(match-string 0 block-name)))
+	     ;; #+call:
+	     ((string-match org-babel-lob-one-liner-regexp under-point)
+	      (let ((source-info (car (org-babel-lob-get-info))))
+		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
+		    (let ((source-name (match-string 1 source-info)))
+		      source-name))))
+	     ;; #+results:
+	     ((string-match (concat "#\\+" org-babel-results-keyword
+				    "\\:\s+\\([^\\(]*\\)") under-point)
+	      (match-string 1 under-point))
+	     ;; symbol-at-point
+	     ((and (thing-at-point 'symbol))
+	      (org-babel-find-named-block (thing-at-point 'symbol))
+	      (thing-at-point 'symbol))
+	     (""))))))
+  (let ((point (org-babel-find-named-block name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
+      (message "source-code block '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-block (name)
+  "Find a named source-code block.
+Return the location of the source block identified by source
+NAME, or nil if no such block exists.  Set match data according to
+org-babel-named-src-block-regexp."
+  (save-excursion
+    (let ((case-fold-search t)
+	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
+      (goto-char (point-min))
+      (when (or (re-search-forward regexp nil t)
+		(re-search-backward regexp nil t))
+        (match-beginning 0)))))
+
+(defun org-babel-src-block-names (&optional file)
+  "Returns the names of source blocks in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
+	(setq names (cons (match-string 3) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-goto-named-result (name)
+  "Go to a named result."
+  (interactive
+   (let ((completion-ignore-case t))
+     (list (org-icompleting-read "source-block name: "
+				 (org-babel-result-names) nil t))))
+  (let ((point (org-babel-find-named-result name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (goto-char point) (org-show-context))
+      (message "result '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-result (name &optional point)
+  "Find a named result.
+Return the location of the result named NAME in the current
+buffer or nil if no such result exists."
+  (save-excursion
+    (let ((case-fold-search t))
+      (goto-char (or point (point-min)))
+      (catch 'is-a-code-block
+	(when (re-search-forward
+	       (concat org-babel-result-regexp
+		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
+	  (when (and (string= "name" (downcase (match-string 1)))
+		     (or (beginning-of-line 1)
+			 (looking-at org-babel-src-block-regexp)
+			 (looking-at org-babel-multi-line-header-regexp)))
+	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
+	  (beginning-of-line 0) (point))))))
+
+(defun org-babel-result-names (&optional file)
+  "Returns the names of results in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-result-w-name-regexp nil t)
+	(setq names (cons (match-string 4) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-next-src-block (&optional arg)
+  "Jump to the next source block.
+With optional prefix argument ARG, jump forward ARG many source blocks."
+  (interactive "P")
+  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
+  (condition-case nil
+      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No further code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+;;;###autoload
+(defun org-babel-previous-src-block (&optional arg)
+  "Jump to the previous source block.
+With optional prefix argument ARG, jump backward ARG many source blocks."
+  (interactive "P")
+  (condition-case nil
+      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No previous code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+(defvar org-babel-load-languages)
+
+;;;###autoload
+(defun org-babel-mark-block ()
+  "Mark current src block."
+  (interactive)
+  ((lambda (head)
+     (when head
+       (save-excursion
+	 (goto-char head)
+	 (looking-at org-babel-src-block-regexp))
+       (push-mark (match-end 5) nil t)
+       (goto-char (match-beginning 5))))
+   (org-babel-where-is-src-block-head)))
+
+(defun org-babel-demarcate-block (&optional arg)
+  "Wrap or split the code in the region or on the point.
+When called from inside of a code block the current block is
+split.  When called from outside of a code block a new code block
+is created.  In both cases if the region is demarcated and if the
+region is not active then the point is demarcated."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info 'light))
+	(headers (progn (org-babel-where-is-src-block-head)
+			(match-string 4)))
+	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
+    (if info
+        (mapc
+         (lambda (place)
+           (save-excursion
+             (goto-char place)
+             (let ((lang (nth 0 info))
+                   (indent (make-string (nth 5 info) ? )))
+	       (when (string-match "^[[:space:]]*$"
+				   (buffer-substring (point-at-bol)
+						     (point-at-eol)))
+		 (delete-region (point-at-bol) (point-at-eol)))
+               (insert (concat
+			(if (looking-at "^") "" "\n")
+			indent "#+end_src\n"
+			(if arg stars indent) "\n"
+			indent "#+begin_src " lang
+			(if (> (length headers) 1)
+			    (concat " " headers) headers)
+			(if (looking-at "[\n\r]")
+			    ""
+			  (concat "\n" (make-string (current-column) ? )))))))
+	   (move-end-of-line 2))
+         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
+      (let ((start (point))
+	    (lang (org-icompleting-read "Lang: "
+					(mapcar (lambda (el) (symbol-name (car el)))
+						org-babel-load-languages)))
+	    (body (delete-and-extract-region
+		   (if (org-region-active-p) (mark) (point)) (point))))
+	(insert (concat (if (looking-at "^") "" "\n")
+			(if arg (concat stars "\n") "")
+			"#+begin_src " lang "\n"
+			body
+			(if (or (= (length body) 0)
+				(string-match "[\r\n]$" body)) "" "\n")
+			"#+end_src\n"))
+	(goto-char start) (move-end-of-line 1)))))
+
+(defvar org-babel-lob-one-liner-regexp)
+(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
+  "Find where the current source block results begin.
+Return the point at the beginning of the result of the current
+source block.  Specifically at the beginning of the results line.
+If no result exists for this block then create a results line
+following the source block."
+  (save-excursion
+    (let* ((case-fold-search t)
+	   (on-lob-line (save-excursion
+			  (beginning-of-line 1)
+			  (looking-at org-babel-lob-one-liner-regexp)))
+	   (inlinep (when (org-babel-get-inline-src-block-matches)
+		      (match-end 0)))
+	   (name (if on-lob-line
+		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
+		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
+	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
+	   found beg end)
+      (when head (goto-char head))
+      (org-with-wide-buffer
+       (setq
+	found ;; was there a result (before we potentially insert one)
+	(or
+	 inlinep
+	 (and
+	  ;; named results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it does not need to be rebuilt, then don't set end
+	  ;; - if it does need to be rebuilt then do set end
+	  name (setq beg (org-babel-find-named-result name))
+	  (prog1 beg
+	    (when (and hash (not (string= hash (match-string 3))))
+	      (goto-char beg) (setq end beg) ;; beginning of result
+	      (forward-line 1)
+	      (delete-region end (org-babel-result-end)) nil)))
+	 (and
+	  ;; unnamed results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it is found, and the hash doesn't match, delete and set end
+	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
+	  (progn (end-of-line 1)
+		 (if (eobp) (insert "\n") (forward-char 1))
+		 (setq end (point))
+		 (or (and (not name)
+			  (progn ;; unnamed results line already exists
+			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
+			    (beginning-of-line 1)
+			    (looking-at
+			     (concat org-babel-result-regexp "\n")))
+			  (prog1 (point)
+			    ;; must remove and rebuild if hash!=old-hash
+			    (if (and hash (not (string= hash (match-string 3))))
+				(prog1 nil
+				  (forward-line 1)
+				  (delete-region
+				   end (org-babel-result-end)))
+			      (setq end nil))))))))))
+      (if (not (and insert end)) found
+	(goto-char end)
+	(unless beg
+	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
+	(insert (concat
+		 (when (wholenump indent) (make-string indent ? ))
+		 "#+" org-babel-results-keyword
+		 (when hash (concat "["hash"]"))
+		 ":"
+		 (when name (concat " " name)) "\n"))
+	(unless beg (insert "\n") (backward-char))
+	(beginning-of-line 0)
+	(if hash (org-babel-hide-hash))
+	(point)))))
+
+(defvar org-block-regexp)
+(defun org-babel-read-result ()
+  "Read the result at `point' into emacs-lisp."
+  (let ((case-fold-search t) result-string)
+    (cond
+     ((org-at-table-p) (org-babel-read-table))
+     ((org-at-item-p) (org-babel-read-list))
+     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
+     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
+     ((looking-at "^[ \t]*: ")
+      (setq result-string
+	    (org-babel-trim
+	     (mapconcat (lambda (line)
+                          (if (and (> (length line) 1)
+                                   (string-match "^[ \t]*: \\(.+\\)" line))
+                              (match-string 1 line)
+                            line))
+			(split-string
+			 (buffer-substring
+                          (point) (org-babel-result-end)) "[\r\n]+")
+			"\n")))
+      (or (org-babel-number-p result-string) result-string))
+     ((looking-at org-babel-result-regexp)
+      (save-excursion (forward-line 1) (org-babel-read-result))))))
+
+(defun org-babel-read-table ()
+  "Read the table at `point' into emacs-lisp."
+  (mapcar (lambda (row)
+            (if (and (symbolp row) (equal row 'hline)) row
+              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
+          (org-table-to-lisp)))
+
+(defun org-babel-read-list ()
+  "Read the list at `point' into emacs-lisp."
+  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
+	  (mapcar #'cadr (cdr (org-list-parse-list)))))
+
+(defvar org-link-types-re)
+(defun org-babel-read-link ()
+  "Read the link at `point' into emacs-lisp.
+If the path of the link is a file path it is expanded using
+`expand-file-name'."
+  (let* ((case-fold-search t)
+         (raw (and (looking-at org-bracket-link-regexp)
+                   (org-no-properties (match-string 1))))
+         (type (and (string-match org-link-types-re raw)
+                    (match-string 1 raw))))
+    (cond
+     ((not type) (expand-file-name raw))
+     ((string= type "file")
+      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
+           (expand-file-name (match-string 2 raw))))
+     (t raw))))
+
+(defun org-babel-format-result (result &optional sep)
+  "Format RESULT for writing to file."
+  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
+    (if (listp result)
+	;; table result
+	(orgtbl-to-generic
+	 result (list :sep (or sep "\t") :fmt echo-res))
+      ;; scalar result
+      (funcall echo-res result))))
+
+(defun org-babel-insert-result
+  (result &optional result-params info hash indent lang)
+  "Insert RESULT into the current buffer.
+By default RESULT is inserted after the end of the
+current source block.  With optional argument RESULT-PARAMS
+controls insertion of results in the org-mode file.
+RESULT-PARAMS can take the following values:
+
+replace - (default option) insert results after the source block
+          replacing any previously inserted results
+
+silent -- no results are inserted into the Org-mode buffer but
+          the results are echoed to the minibuffer and are
+          ingested by Emacs (a potentially time consuming
+          process)
+
+file ---- the results are interpreted as a file path, and are
+          inserted into the buffer using the Org-mode file syntax
+
+list ---- the results are interpreted as an Org-mode list.
+
+raw ----- results are added directly to the Org-mode file.  This
+          is a good option if you code block will output org-mode
+          formatted text.
+
+drawer -- results are added directly to the Org-mode file as with
+          \"raw\", but are wrapped in a RESULTS drawer, allowing
+          them to later be replaced or removed automatically.
+
+org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
+          They are not comma-escaped when inserted, but Org syntax
+          here will be discarded when exporting the file.
+
+html ---- results are added inside of a #+BEGIN_HTML block.  This
+          is a good option if you code block will output html
+          formatted text.
+
+latex --- results are added inside of a #+BEGIN_LATEX block.
+          This is a good option if you code block will output
+          latex formatted text.
+
+code ---- the results are extracted in the syntax of the source
+          code of the language being evaluated and are added
+          inside of a #+BEGIN_SRC block with the source-code
+          language set appropriately.  Note this relies on the
+          optional LANG argument."
+  (if (stringp result)
+      (progn
+        (setq result (org-no-properties result))
+        (when (member "file" result-params)
+	  (setq result (org-babel-result-to-file
+			result (when (assoc :file-desc (nth 2 info))
+				 (or (cdr (assoc :file-desc (nth 2 info)))
+				     result))))))
+    (unless (listp result) (setq result (format "%S" result))))
+  (if (and result-params (member "silent" result-params))
+      (progn
+	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
+	result)
+    (save-excursion
+      (let* ((inlinep
+	      (save-excursion
+		(when (or (org-babel-get-inline-src-block-matches)
+			  (org-babel-get-lob-one-liner-matches))
+		  (goto-char (match-end 0))
+		  (insert (if (listp result) "\n" " "))
+		  (point))))
+	     (existing-result (unless inlinep
+				(org-babel-where-is-src-block-result
+				 t info hash indent)))
+	     (results-switches
+	      (cdr (assoc :results_switches (nth 2 info))))
+	     (visible-beg (copy-marker (point-min)))
+	     (visible-end (copy-marker (point-max)))
+	     ;; When results exist outside of the current visible
+	     ;; region of the buffer, be sure to widen buffer to
+	     ;; update them.
+	     (outside-scope-p (and existing-result
+				   (or (> visible-beg existing-result)
+				       (<= visible-end existing-result))))
+	     beg end)
+	(when (and (stringp result)  ; ensure results end in a newline
+		   (not inlinep)
+		   (> (length result) 0)
+		   (not (or (string-equal (substring result -1) "\n")
+			    (string-equal (substring result -1) "\r"))))
+	  (setq result (concat result "\n")))
+	(unwind-protect
+	    (progn
+	      (when outside-scope-p (widen))
+	      (if (not existing-result)
+		  (setq beg (or inlinep (point)))
+		(goto-char existing-result)
+		(save-excursion
+		  (re-search-forward "#" nil t)
+		  (setq indent (- (current-column) 1)))
+		(forward-line 1)
+		(setq beg (point))
+		(cond
+		 ((member "replace" result-params)
+		  (delete-region (point) (org-babel-result-end)))
+		 ((member "append" result-params)
+		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
+		 ((member "prepend" result-params)))) ; already there
+	      (setq results-switches
+		    (if results-switches (concat " " results-switches) ""))
+	      (let ((wrap (lambda (start finish &optional no-escape)
+			    (goto-char end) (insert (concat finish "\n"))
+			    (goto-char beg) (insert (concat start "\n"))
+			    (unless no-escape
+			      (org-escape-code-in-region (point) end))
+			    (goto-char end) (goto-char (point-at-eol))
+			    (setq end (point-marker))))
+		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
+		;; insert results based on type
+		(cond
+		 ;; do nothing for an empty result
+		 ((null result))
+		 ;; insert a list if preferred
+		 ((member "list" result-params)
+		  (insert
+		   (org-babel-trim
+		    (org-list-to-generic
+		     (cons 'unordered
+			   (mapcar
+			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
+			    (if (listp result) result (list result))))
+		     '(:splicep nil :istart "- " :iend "\n")))
+		   "\n"))
+		 ;; assume the result is a table if it's not a string
+		 ((funcall proper-list-p result)
+		  (goto-char beg)
+		  (insert (concat (orgtbl-to-orgtbl
+				   (if (or (eq 'hline (car result))
+					   (and (listp (car result))
+						(listp (cdr (car result)))))
+				       result (list result))
+				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
+		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
+		 ((and (listp result) (not (funcall proper-list-p result)))
+		  (insert (format "%s\n" result)))
+		 ((member "file" result-params)
+		  (when inlinep (goto-char inlinep))
+		  (insert result))
+		 (t (goto-char beg) (insert result)))
+		(when (funcall proper-list-p result) (goto-char (org-table-end)))
+		(setq end (point-marker))
+		;; possibly wrap result
+		(cond
+		 ((assoc :wrap (nth 2 info))
+		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
+		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
+		 ((member "html" result-params)
+		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
+		 ((member "latex" result-params)
+		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
+		 ((member "org" result-params)
+		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
+		 ((member "code" result-params)
+		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
+			   "#+END_SRC"))
+		 ((member "raw" result-params)
+		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
+		 ((or (member "drawer" result-params)
+		      ;; Stay backward compatible with <7.9.2
+		      (member "wrap" result-params))
+		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
+		 ((and (not (funcall proper-list-p result))
+		       (not (member "file" result-params)))
+		  (org-babel-examplize-region beg end results-switches)
+		  (setq end (point)))))
+	      ;; possibly indent the results to match the #+results line
+	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
+			 ;; in this case `table-align' does the work for us
+			 (not (and (listp result)
+				   (member "append" result-params))))
+		(indent-rigidly beg end indent))
+	      (if (null result)
+		  (if (member "value" result-params)
+		      (message "Code block returned no value.")
+		    (message "Code block produced no output."))
+		(message "Code block evaluation complete.")))
+	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
+	  (set-marker visible-beg nil)
+	  (set-marker visible-end nil))))))
+
+(defun org-babel-remove-result (&optional info)
+  "Remove the result of the current source block."
+  (interactive)
+  (let ((location (org-babel-where-is-src-block-result nil info)) start)
+    (when location
+      (setq start (- location 1))
+      (save-excursion
+        (goto-char location) (forward-line 1)
+        (delete-region start (org-babel-result-end))))))
+
+(defun org-babel-result-end ()
+  "Return the point at the end of the current set of results."
+  (save-excursion
+    (cond
+     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
+     ((org-at-item-p) (let* ((struct (org-list-struct))
+			     (prvs (org-list-prevs-alist struct)))
+			(org-list-get-list-end (point-at-bol) struct prvs)))
+     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
+      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
+	     (forward-char 1) (point)))
+     (t
+      (let ((case-fold-search t))
+	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
+	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
+				      nil t)
+		   (forward-char 1))
+	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
+	    (forward-line 1))))
+      (point)))))
+
+(defun org-babel-result-to-file (result &optional description)
+  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
+If the `default-directory' is different from the containing
+file's directory then expand relative links."
+  (when (stringp result)
+    (format "[[file:%s]%s]"
+	    (if (and default-directory
+		     buffer-file-name
+		     (not (string= (expand-file-name default-directory)
+				   (expand-file-name
+				    (file-name-directory buffer-file-name)))))
+		(expand-file-name result default-directory)
+	      result)
+	    (if description (concat "[" description "]") ""))))
+
+(defvar org-babel-capitalize-examplize-region-markers nil
+  "Make true to capitalize begin/end example markers inserted by code blocks.")
+
+(defun org-babel-examplize-region (beg end &optional results-switches)
+  "Comment out region using the inline '==' or ': ' org example quote."
+  (interactive "*r")
+  (let ((chars-between (lambda (b e)
+			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
+	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
+				     (upcase str) str))))
+    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
+	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
+	(save-excursion
+	  (goto-char beg)
+	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
+				   (delete-region beg end)))))
+      (let ((size (count-lines beg end)))
+	(save-excursion
+	  (cond ((= size 0))	      ; do nothing for an empty result
+		((< size org-babel-min-lines-for-block-output)
+		 (goto-char beg)
+		 (dotimes (n size)
+		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
+		(t
+		 (goto-char beg)
+		 (insert (if results-switches
+			     (format "%s%s\n"
+				     (funcall maybe-cap "#+begin_example")
+				     results-switches)
+			   (funcall maybe-cap "#+begin_example\n")))
+		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
+		 (insert (funcall maybe-cap "#+end_example\n")))))))))
+
+(defun org-babel-update-block-body (new-body)
+  "Update the body of the current code block to NEW-BODY."
+  (if (not (org-babel-where-is-src-block-head))
+      (error "Not in a source block")
+    (save-match-data
+      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
+    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
+
+(defun org-babel-merge-params (&rest plists)
+  "Combine all parameter association lists in PLISTS.
+Later elements of PLISTS override the values of previous elements.
+This takes into account some special considerations for certain
+parameters when merging lists."
+  (let* ((results-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
+	 (exports-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
+	 (variable-index 0)
+	 (e-merge (lambda (exclusive-groups &rest result-params)
+		    ;; maintain exclusivity of mutually exclusive parameters
+		    (let (output)
+		      (mapc (lambda (new-params)
+			      (mapc (lambda (new-param)
+				      (mapc (lambda (exclusive-group)
+					      (when (member new-param exclusive-group)
+						(mapcar (lambda (excluded-param)
+							  (setq output
+								(delete
+								 excluded-param
+								 output)))
+							exclusive-group)))
+					    exclusive-groups)
+				      (setq output (org-uniquify
+						    (cons new-param output))))
+				    new-params))
+			    result-params)
+		      output)))
+	 params results exports tangle noweb cache vars shebang comments padline)
+
+    (mapc
+     (lambda (plist)
+       (mapc
+	(lambda (pair)
+	  (case (car pair)
+	    (:var
+	     (let ((name (if (listp (cdr pair))
+			     (cadr pair)
+			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
+					      (cdr pair))
+				(intern (match-string 1 (cdr pair)))))))
+	       (if name
+		   (setq vars
+			 (append
+			  (if (member name (mapcar #'car vars))
+			      (delq nil
+				    (mapcar
+				     (lambda (p)
+				       (unless (equal (car p) name) p))
+				     vars))
+			    vars)
+			  (list (cons name pair))))
+		 ;; if no name is given and we already have named variables
+		 ;; then assign to named variables in order
+		 (if (and vars (nth variable-index vars))
+		     (prog1 (setf (cddr (nth variable-index vars))
+				  (concat (symbol-name
+					   (car (nth variable-index vars)))
+					  "=" (cdr pair)))
+		       (incf variable-index))
+		   (error "Variable \"%s\" must be assigned a default value"
+			  (cdr pair))))))
+	    (:results
+	     (setq results (funcall e-merge results-exclusive-groups
+				    results
+				    (split-string
+				     (let ((r (cdr pair)))
+				       (if (stringp r) r (eval r)))))))
+	    (:file
+	     (when (cdr pair)
+	       (setq results (funcall e-merge results-exclusive-groups
+				      results '("file")))
+	       (unless (or (member "both" exports)
+			   (member "none" exports)
+			   (member "code" exports))
+		 (setq exports (funcall e-merge exports-exclusive-groups
+					exports '("results"))))
+	       (setq params (cons pair (assq-delete-all (car pair) params)))))
+	    (:exports
+	     (setq exports (funcall e-merge exports-exclusive-groups
+				    exports (split-string (cdr pair)))))
+	    (:tangle ;; take the latest -- always overwrite
+	     (setq tangle (or (list (cdr pair)) tangle)))
+	    (:noweb
+	     (setq noweb (funcall e-merge
+				  '(("yes" "no" "tangle" "no-export"
+				     "strip-export" "eval"))
+				  noweb
+				  (split-string (or (cdr pair) "")))))
+	    (:cache
+	     (setq cache (funcall e-merge '(("yes" "no")) cache
+				  (split-string (or (cdr pair) "")))))
+	    (:padline
+	     (setq padline (funcall e-merge '(("yes" "no")) padline
+				    (split-string (or (cdr pair) "")))))
+	    (:shebang ;; take the latest -- always overwrite
+	     (setq shebang (or (list (cdr pair)) shebang)))
+	    (:comments
+	     (setq comments (funcall e-merge '(("yes" "no")) comments
+				     (split-string (or (cdr pair) "")))))
+	    (t ;; replace: this covers e.g. :session
+	     (setq params (cons pair (assq-delete-all (car pair) params))))))
+	plist))
+     plists)
+    (setq vars (reverse vars))
+    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
+    (mapc
+     (lambda (hd)
+       (let ((key (intern (concat ":" (symbol-name hd))))
+	     (val (eval hd)))
+	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
+     '(results exports tangle noweb padline cache shebang comments))
+    params))
+
+(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
+  "Set to true to use regular expressions to expand noweb references.
+This results in much faster noweb reference expansion but does
+not properly allow code blocks to inherit the \":noweb-ref\"
+header argument from buffer or subtree wide properties.")
+
+(defun org-babel-noweb-p (params context)
+  "Check if PARAMS require expansion in CONTEXT.
+CONTEXT may be one of :tangle, :export or :eval."
+  (let* (intersect
+	 (intersect (lambda (as bs)
+		      (when as
+			(if (member (car as) bs)
+			    (car as)
+			  (funcall intersect (cdr as) bs))))))
+    (funcall intersect (case context
+			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
+			 (:eval   '("yes" "no-export" "strip-export" "eval"))
+			 (:export '("yes")))
+	     (split-string (or (cdr (assoc :noweb params)) "")))))
+
+(defun org-babel-expand-noweb-references (&optional info parent-buffer)
+  "Expand Noweb references in the body of the current source code block.
+
+For example the following reference would be replaced with the
+body of the source-code block named 'example-block'.
+
+<<example-block>>
+
+Note that any text preceding the <<foo>> construct on a line will
+be interposed between the lines of the replacement text.  So for
+example if <<foo>> is placed behind a comment, then the entire
+replacement text will also be commented.
+
+This function must be called from inside of the buffer containing
+the source-code block which holds BODY.
+
+In addition the following syntax can be used to insert the
+results of evaluating the source-code block named 'example-block'.
+
+<<example-block()>>
+
+Any optional arguments can be passed to example-block by placing
+the arguments inside the parenthesis following the convention
+defined by `org-babel-lob'.  For example
+
+<<example-block(a=9)>>
+
+would set the value of argument \"a\" equal to \"9\".  Note that
+these arguments are not evaluated in the current source-code
+block but are passed literally to the \"example-block\"."
+  (let* ((parent-buffer (or parent-buffer (current-buffer)))
+         (info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+	 (ob-nww-start org-babel-noweb-wrap-start)
+	 (ob-nww-end org-babel-noweb-wrap-end)
+	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
+	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
+			    ":noweb-ref[ \t]+" "\\)"))
+         (new-body "")
+	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
+	 (c-wrap (lambda (text)
+		   (with-temp-buffer
+		     (funcall (intern (concat lang "-mode")))
+		     (comment-region (point) (progn (insert text) (point)))
+		     (org-babel-trim (buffer-string)))))
+	 index source-name evaluate prefix blocks-in-buffer)
+    (with-temp-buffer
+      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
+      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
+      (insert body) (goto-char (point-min))
+      (setq index (point))
+      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
+	(save-match-data (setf source-name (match-string 1)))
+	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
+	(save-match-data
+	  (setq prefix
+		(buffer-substring (match-beginning 0)
+				  (save-excursion
+				    (beginning-of-line 1) (point)))))
+	;; add interval to new-body (removing noweb reference)
+	(goto-char (match-beginning 0))
+	(funcall nb-add (buffer-substring index (point)))
+	(goto-char (match-end 0))
+	(setq index (point))
+	(funcall nb-add
+		 (with-current-buffer parent-buffer
+		   (save-restriction
+		     (widen)
+		     (mapconcat ;; interpose PREFIX between every line
+		      #'identity
+		      (split-string
+		       (if evaluate
+			   (let ((raw (org-babel-ref-resolve source-name)))
+			     (if (stringp raw) raw (format "%S" raw)))
+			 (or
+			  ;; retrieve from the library of babel
+			  (nth 2 (assoc (intern source-name)
+					org-babel-library-of-babel))
+			  ;; return the contents of headlines literally
+			  (save-excursion
+			    (when (org-babel-ref-goto-headline-id source-name)
+			      (org-babel-ref-headline-body)))
+			  ;; find the expansion of reference in this buffer
+			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
+				expansion)
+			    (save-excursion
+			      (goto-char (point-min))
+			      (if org-babel-use-quick-and-dirty-noweb-expansion
+				  (while (re-search-forward rx nil t)
+				    (let* ((i (org-babel-get-src-block-info 'light))
+					   (body (org-babel-expand-noweb-references i))
+					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						    "\n"))
+					   (full (if comment
+						     ((lambda (cs)
+							(concat (funcall c-wrap (car cs)) "\n"
+								body "\n"
+								(funcall c-wrap (cadr cs))))
+						      (org-babel-tangle-comment-links i))
+						   body)))
+				      (setq expansion (cons sep (cons full expansion)))))
+				(org-babel-map-src-blocks nil
+				  (let ((i (org-babel-get-src-block-info 'light)))
+				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
+						     (nth 4 i))
+						 source-name)
+				      (let* ((body (org-babel-expand-noweb-references i))
+					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						      "\n"))
+					     (full (if comment
+						       ((lambda (cs)
+							  (concat (funcall c-wrap (car cs)) "\n"
+								  body "\n"
+								  (funcall c-wrap (cadr cs))))
+							(org-babel-tangle-comment-links i))
+						     body)))
+					(setq expansion
+					      (cons sep (cons full expansion)))))))))
+			    (and expansion
+				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
+			  ;; possibly raise an error if named block doesn't exist
+			  (if (member lang org-babel-noweb-error-langs)
+			      (error "%s" (concat
+					   (org-babel-noweb-wrap source-name)
+					   "could not be resolved (see "
+					   "`org-babel-noweb-error-langs')"))
+			    "")))
+		       "[\n\r]") (concat "\n" prefix))))))
+      (funcall nb-add (buffer-substring index (point-max))))
+    new-body))
+
+(defun org-babel-script-escape (str &optional force)
+  "Safely convert tables into elisp lists."
+  (let (in-single in-double out)
+    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
+     (if (or force
+	     (and (stringp str)
+		  (> (length str) 2)
+		  (or (and (string-equal "[" (substring str 0 1))
+			   (string-equal "]" (substring str -1)))
+		      (and (string-equal "{" (substring str 0 1))
+			   (string-equal "}" (substring str -1)))
+		      (and (string-equal "(" (substring str 0 1))
+			   (string-equal ")" (substring str -1))))))
+	 (org-babel-read
+	  (concat
+	   "'"
+	   (progn
+	     (mapc
+	      (lambda (ch)
+		(setq
+		 out
+		 (case ch
+		   (91 (if (or in-double in-single) ; [
+			   (cons 91 out)
+			 (cons 40 out)))
+		   (93 (if (or in-double in-single) ; ]
+			   (cons 93 out)
+			 (cons 41 out)))
+		   (123 (if (or in-double in-single) ; {
+			    (cons 123 out)
+			  (cons 40 out)))
+		   (125 (if (or in-double in-single) ; }
+			    (cons 125 out)
+			  (cons 41 out)))
+		   (44 (if (or in-double in-single) ; ,
+			   (cons 44 out) (cons 32 out)))
+		   (39 (if in-double	; '
+			   (cons 39 out)
+			 (setq in-single (not in-single)) (cons 34 out)))
+		   (34 (if in-single	; "
+			   (append (list 34 32) out)
+			 (setq in-double (not in-double)) (cons 34 out)))
+		   (t  (cons ch out)))))
+	      (string-to-list str))
+	     (apply #'string (reverse out)))))
+       str))))
+
+(defun org-babel-read (cell &optional inhibit-lisp-eval)
+  "Convert the string value of CELL to a number if appropriate.
+Otherwise if cell looks like lisp (meaning it starts with a
+\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
+return it unmodified as a string.  Optional argument NO-LISP-EVAL
+inhibits lisp evaluation for situations in which is it not
+appropriate."
+  (if (and (stringp cell) (not (equal cell "")))
+      (or (org-babel-number-p cell)
+          (if (and (not inhibit-lisp-eval)
+		   (member (substring cell 0 1) '("(" "'" "`" "[")))
+              (eval (read cell))
+            (if (string= (substring cell 0 1) "\"")
+		(read cell)
+	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
+    cell))
+
+(defun org-babel-number-p (string)
+  "If STRING represents a number return its value."
+  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
+           (= (length (substring string (match-beginning 0)
+				 (match-end 0)))
+	      (length string)))
+      (string-to-number string)))
+
+(defun org-babel-import-elisp-from-file (file-name &optional separator)
+  "Read the results located at FILE-NAME into an elisp table.
+If the table is trivial, then return it as a scalar."
+  (let (result)
+    (save-window-excursion
+      (with-temp-buffer
+	(condition-case err
+	    (progn
+	      (org-table-import file-name separator)
+	      (delete-file file-name)
+	      (setq result (mapcar (lambda (row)
+				     (mapcar #'org-babel-string-read row))
+				   (org-table-to-lisp))))
+	  (error (message "Error reading results: %s" err) nil)))
+      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
+	  (if (consp (car result))
+	      (if (null (cdr (car result)))
+		  (caar result)
+		result)
+	    (car result))
+	result))))
+
+(defun org-babel-string-read (cell)
+  "Strip nested \"s from around strings."
+  (org-babel-read (or (and (stringp cell)
+                           (string-match "\\\"\\(.+\\)\\\"" cell)
+                           (match-string 1 cell))
+                      cell) t))
+
+(defun org-babel-reverse-string (string)
+  "Return the reverse of STRING."
+  (apply 'string (reverse (string-to-list string))))
+
+(defun org-babel-chomp (string &optional regexp)
+  "Strip trailing spaces and carriage returns from STRING.
+Default regexp used is \"[ \f\t\n\r\v]\" but can be
+overwritten by specifying a regexp as a second argument."
+  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
+    (while (and (> (length string) 0)
+                (string-match regexp (substring string -1)))
+      (setq string (substring string 0 -1)))
+    string))
+
+(defun org-babel-trim (string &optional regexp)
+  "Strip leading and trailing spaces and carriage returns from STRING.
+Like `org-babel-chomp' only it runs on both the front and back
+of the string."
+  (org-babel-chomp (org-babel-reverse-string
+                    (org-babel-chomp (org-babel-reverse-string string) regexp))
+                   regexp))
+
+(defvar org-babel-org-babel-call-process-region-original nil)
+(defun org-babel-tramp-handle-call-process-region
+  (start end program &optional delete buffer display &rest args)
+  "Use Tramp to handle `call-process-region'.
+Fixes a bug in `tramp-handle-call-process-region'."
+  (if (and (featurep 'tramp) (file-remote-p default-directory))
+      (let ((tmpfile (tramp-compat-make-temp-file "")))
+	(write-region start end tmpfile)
+	(when delete (delete-region start end))
+	(unwind-protect
+	    ;;	(apply 'call-process program tmpfile buffer display args)
+            ;; bug in tramp
+	    (apply 'process-file program tmpfile buffer display args)
+	  (delete-file tmpfile)))
+    ;; org-babel-call-process-region-original is the original emacs
+    ;; definition.  It is in scope from the let binding in
+    ;; org-babel-execute-src-block
+    (apply org-babel-call-process-region-original
+           start end program delete buffer display args)))
+
+(defun org-babel-local-file-name (file)
+  "Return the local name component of FILE."
+  (if (file-remote-p file)
+      (let (localname)
+	(with-parsed-tramp-file-name file nil
+				     localname))
+    file))
+
+(defun org-babel-process-file-name (name &optional no-quote-p)
+  "Prepare NAME to be used in an external process.
+If NAME specifies a remote location, the remote portion of the
+name is removed, since in that case the process will be executing
+remotely.  The file name is then processed by `expand-file-name'.
+Unless second argument NO-QUOTE-P is non-nil, the file name is
+additionally processed by `shell-quote-argument'"
+  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
+   (expand-file-name (org-babel-local-file-name name))))
+
+(defvar org-babel-temporary-directory)
+(unless (or noninteractive (boundp 'org-babel-temporary-directory))
+  (defvar org-babel-temporary-directory
+    (or (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory)
+	     org-babel-temporary-directory)
+	(make-temp-file "babel-" t))
+    "Directory to hold temporary files created to execute code blocks.
+Used by `org-babel-temp-file'.  This directory will be removed on
+Emacs shutdown."))
+
+(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
+  "Call the code to parse raw string results according to RESULT-PARAMS."
+  (declare (indent 1))
+  `(unless (member "none" ,result-params)
+     (if (or (member "scalar" ,result-params)
+	     (member "verbatim" ,result-params)
+	     (member "html" ,result-params)
+	     (member "code" ,result-params)
+	     (member "pp" ,result-params)
+	     (and (member "output" ,result-params)
+		  (not (member "table" ,result-params))))
+	 ,scalar-form
+       ,@table-forms)))
+
+(defun org-babel-temp-file (prefix &optional suffix)
+  "Create a temporary file in the `org-babel-temporary-directory'.
+Passes PREFIX and SUFFIX directly to `make-temp-file' with the
+value of `temporary-file-directory' temporarily set to the value
+of `org-babel-temporary-directory'."
+  (if (file-remote-p default-directory)
+      (make-temp-file
+       (concat (file-remote-p default-directory)
+	       (expand-file-name
+		prefix temporary-file-directory)
+	       nil suffix))
+    (let ((temporary-file-directory
+	   (or (and (boundp 'org-babel-temporary-directory)
+		    (file-exists-p org-babel-temporary-directory)
+		    org-babel-temporary-directory)
+	       temporary-file-directory)))
+      (make-temp-file prefix nil suffix))))
+
+(defun org-babel-remove-temporary-directory ()
+  "Remove `org-babel-temporary-directory' on Emacs shutdown."
+  (when (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory))
+    ;; taken from `delete-directory' in files.el
+    (condition-case nil
+	(progn
+	  (mapc (lambda (file)
+		  ;; This test is equivalent to
+		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
+		  ;; but more efficient
+		  (if (eq t (car (file-attributes file)))
+		      (delete-directory file)
+		    (delete-file file)))
+		;; We do not want to delete "." and "..".
+		(directory-files org-babel-temporary-directory 'full
+				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
+	  (delete-directory org-babel-temporary-directory))
+      (error
+       (message "Failed to remove temporary Org-babel directory %s"
+		(if (boundp 'org-babel-temporary-directory)
+		    org-babel-temporary-directory
+		  "[directory not defined]"))))))
+
+(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
+
+;;; ob-lob.el
+
+(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
+
+(defvar org-babel-library-of-babel nil
+  "Library of source-code blocks.
+This is an association list.  Populate the library by adding
+files to `org-babel-lob-files'.")
+
+(defcustom org-babel-lob-files '()
+  "Files used to populate the `org-babel-library-of-babel'.
+To add files to this list use the `org-babel-lob-ingest' command."
+  :group 'org-babel
+  :version "24.1"
+  :type 'list)
+
+(defvar org-babel-default-lob-header-args '((:exports . "results"))
+  "Default header arguments to use when exporting #+lob/call lines.")
+
+(defun org-babel-lob-ingest (&optional file)
+  "Add all named source-blocks defined in FILE to
+`org-babel-library-of-babel'."
+  (interactive "fFile: ")
+  (let ((lob-ingest-count 0))
+    (org-babel-map-src-blocks file
+      (let* ((info (org-babel-get-src-block-info 'light))
+	     (source-name (nth 4 info)))
+	(when source-name
+	  (setq source-name (intern source-name)
+		org-babel-library-of-babel
+		(cons (cons source-name info)
+		      (assq-delete-all source-name org-babel-library-of-babel))
+		lob-ingest-count (1+ lob-ingest-count)))))
+    (message "%d src block%s added to Library of Babel"
+	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
+    lob-ingest-count))
+
+(defconst org-babel-block-lob-one-liner-regexp
+  (concat
+   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
+  "Regexp to match non-inline calls to predefined source block functions.")
+
+(defconst org-babel-inline-lob-one-liner-regexp
+  (concat
+   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
+  "Regexp to match inline calls to predefined source block functions.")
+
+(defconst org-babel-lob-one-liner-regexp
+  (concat "\\(" org-babel-block-lob-one-liner-regexp
+	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
+  "Regexp to match calls to predefined source block functions.")
+
+;; functions for executing lob one-liners
+
+;;;###autoload
+(defun org-babel-lob-execute-maybe ()
+  "Execute a Library of Babel source block, if appropriate.
+Detect if this is context for a Library Of Babel source block and
+if so then run the appropriate source block from the Library."
+  (interactive)
+  (let ((info (org-babel-lob-get-info)))
+    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
+	(progn (org-babel-lob-execute info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-lob-get-info ()
+  "Return a Library of Babel function call as a string."
+  (let ((case-fold-search t)
+	(nonempty (lambda (a b)
+		    (let ((it (match-string a)))
+		      (if (= (length it) 0) (match-string b) it)))))
+    (save-excursion
+      (beginning-of-line 1)
+      (when (looking-at org-babel-lob-one-liner-regexp)
+	(append
+	 (mapcar #'org-no-properties
+		 (list
+		  (format "%s%s(%s)%s"
+			  (funcall nonempty 3 12)
+			  (if (not (= 0 (length (funcall nonempty 5 14))))
+			      (concat "[" (funcall nonempty 5 14) "]") "")
+			  (or (funcall nonempty 7 16) "")
+			  (or (funcall nonempty 8 19) ""))
+		  (funcall nonempty 9 18)))
+	 (list (length (if (= (length (match-string 12)) 0)
+			   (match-string 2) (match-string 11)))))))))
+
+(defun org-babel-lob-execute (info)
+  "Execute the lob call specified by INFO."
+  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
+	 (pre-params (org-babel-merge-params
+		      org-babel-default-header-args
+		      (org-babel-params-from-properties)
+		      (org-babel-parse-header-arguments
+		       (org-no-properties
+			(concat ":var results="
+				(mapconcat #'identity (butlast info) " "))))))
+	 (pre-info (funcall mkinfo pre-params))
+	 (cache? (and (cdr (assoc :cache pre-params))
+		      (string= "yes" (cdr (assoc :cache pre-params)))))
+	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
+	 (old-hash (when cache? (org-babel-current-result-hash))))
+    (if (and cache? (equal new-hash old-hash))
+	(save-excursion (goto-char (org-babel-where-is-src-block-result))
+			(forward-line 1)
+			(message "%S" (org-babel-read-result)))
+      (prog1 (org-babel-execute-src-block
+	      nil (funcall mkinfo (org-babel-process-params pre-params)))
+	;; update the hash
+	(when new-hash (org-babel-set-current-result-hash new-hash))))))
+
+(declare-function org-link-escape "org" (text &optional table))
+(declare-function org-heading-components "org" ())
+(declare-function org-back-to-heading "org" (invisible-ok))
+(declare-function org-fill-template "org" (template alist))
+(declare-function org-babel-update-block-body "org" (new-body))
+(declare-function make-directory "files" (dir &optional parents))
+
+(defcustom org-babel-tangle-lang-exts
+  '(("emacs-lisp" . "el"))
+  "Alist mapping languages to their file extensions.
+The key is the language name, the value is the string that should
+be inserted as the extension commonly used to identify files
+written in this language.  If no entry is found in this list,
+then the name of the language is used."
+  :group 'org-babel-tangle
+  :version "24.1"
+  :type '(repeat
+	  (cons
+	   (string "Language name")
+	   (string "File Extension"))))
+
+(defcustom org-babel-post-tangle-hook nil
+  "Hook run in code files tangled by `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-pre-tangle-hook '(save-buffer)
+  "Hook run at the beginning of `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-body-hook nil
+  "Hook run over the contents of each code block body."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-process-comment-text #'org-babel-trim
+  "Function called to process raw Org-mode text collected to be
+inserted as comments in tangled source-code files.  The function
+should take a single string argument and return a string
+result.  The default value is `org-babel-trim'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'function)
+
+(defun org-babel-find-file-noselect-refresh (file)
+  "Find file ensuring that the latest changes on disk are
+represented in the file."
+  (find-file-noselect file)
+  (with-current-buffer (get-file-buffer file)
+    (revert-buffer t t t)))
+
+(defmacro org-babel-with-temp-filebuffer (file &rest body)
+  "Open FILE into a temporary buffer execute BODY there like
+`progn', then kill the FILE buffer returning the result of
+evaluating BODY."
+  (declare (indent 1))
+  (let ((temp-path (make-symbol "temp-path"))
+	(temp-result (make-symbol "temp-result"))
+	(temp-file (make-symbol "temp-file"))
+	(visited-p (make-symbol "visited-p")))
+    `(let* ((,temp-path ,file)
+	    (,visited-p (get-file-buffer ,temp-path))
+	    ,temp-result ,temp-file)
+       (org-babel-find-file-noselect-refresh ,temp-path)
+       (setf ,temp-file (get-file-buffer ,temp-path))
+       (with-current-buffer ,temp-file
+	 (setf ,temp-result (progn ,@body)))
+       (unless ,visited-p (kill-buffer ,temp-file))
+       ,temp-result)))
+(def-edebug-spec org-babel-with-temp-filebuffer (form body))
+
+;;;###autoload
+(defun org-babel-load-file (file &optional compile)
+  "Load Emacs Lisp source code blocks in the Org-mode FILE.
+This function exports the source code using `org-babel-tangle'
+and then loads the resulting file using `load-file'.  With prefix
+arg (noninteractively: 2nd arg) COMPILE the tangled Emacs Lisp
+file to byte-code before it is loaded."
+  (interactive "fFile to load: \nP")
+  (let* ((age (lambda (file)
+		(float-time
+		 (time-subtract (current-time)
+				(nth 5 (or (file-attributes (file-truename file))
+					   (file-attributes file)))))))
+	 (base-name (file-name-sans-extension file))
+	 (exported-file (concat base-name ".el")))
+    ;; tangle if the org-mode file is newer than the elisp file
+    (unless (and (file-exists-p exported-file)
+		 (> (funcall age file) (funcall age exported-file)))
+      (org-babel-tangle-file file exported-file "emacs-lisp"))
+    (message "%s %s"
+	     (if compile
+		 (progn (byte-compile-file exported-file 'load)
+			"Compiled and loaded")
+	       (progn (load-file exported-file) "Loaded"))
+	     exported-file)))
+
+;;;###autoload
+(defun org-babel-tangle-file (file &optional target-file lang)
+  "Extract the bodies of source code blocks in FILE.
+Source code blocks are extracted with `org-babel-tangle'.
+Optional argument TARGET-FILE can be used to specify a default
+export file for all source blocks.  Optional argument LANG can be
+used to limit the exported source code blocks by language."
+  (interactive "fFile to tangle: \nP")
+  (let ((visited-p (get-file-buffer (expand-file-name file)))
+	to-be-removed)
+    (save-window-excursion
+      (find-file file)
+      (setq to-be-removed (current-buffer))
+      (org-babel-tangle nil target-file lang))
+    (unless visited-p
+      (kill-buffer to-be-removed))))
+
+(defun org-babel-tangle-publish (_ filename pub-dir)
+  "Tangle FILENAME and place the results in PUB-DIR."
+  (mapc (lambda (el) (copy-file el pub-dir t)) (org-babel-tangle-file filename)))
+
+;;;###autoload
+(defun org-babel-tangle (&optional only-this-block target-file lang)
+  "Write code blocks to source-specific files.
+Extract the bodies of all source code blocks from the current
+file into their own source-specific files.  Optional argument
+TARGET-FILE can be used to specify a default export file for all
+source blocks.  Optional argument LANG can be used to limit the
+exported source code blocks by language."
+  (interactive "P")
+  (run-hooks 'org-babel-pre-tangle-hook)
+  ;; possibly restrict the buffer to the current code block
+  (save-restriction
+    (when only-this-block
+      (unless (org-babel-where-is-src-block-head)
+	(error "Point is not currently inside of a code block"))
+      (save-match-data
+	(unless (or (cdr (assoc :tangle (nth 2 (org-babel-get-src-block-info))))
+		    target-file)
+	  (setq target-file
+		(read-from-minibuffer "Tangle to: " (buffer-file-name)))))
+      (narrow-to-region (match-beginning 0) (match-end 0)))
+    (save-excursion
+      (let ((block-counter 0)
+	    (org-babel-default-header-args
+	     (if target-file
+		 (org-babel-merge-params org-babel-default-header-args
+					 (list (cons :tangle target-file)))
+	       org-babel-default-header-args))
+	    path-collector)
+	(mapc ;; map over all languages
+	 (lambda (by-lang)
+	   (let* ((lang (car by-lang))
+		  (specs (cdr by-lang))
+		  (ext (or (cdr (assoc lang org-babel-tangle-lang-exts)) lang))
+		  (lang-f (intern
+			   (concat
+			    (or (and (cdr (assoc lang org-src-lang-modes))
+				     (symbol-name
+				      (cdr (assoc lang org-src-lang-modes))))
+				lang)
+			    "-mode")))
+		  she-banged)
+	     (mapc
+	      (lambda (spec)
+		(let ((get-spec (lambda (name) (cdr (assoc name (nth 4 spec))))))
+		  (let* ((tangle (funcall get-spec :tangle))
+			 (she-bang ((lambda (sheb) (when (> (length sheb) 0) sheb))
+				    (funcall get-spec :shebang)))
+			 (base-name (cond
+				     ((string= "yes" tangle)
+				      (file-name-sans-extension
+				       (buffer-file-name)))
+				     ((string= "no" tangle) nil)
+				     ((> (length tangle) 0) tangle)))
+			 (file-name (when base-name
+				      ;; decide if we want to add ext to base-name
+				      (if (and ext (string= "yes" tangle))
+					  (concat base-name "." ext) base-name))))
+		    (when file-name
+		      ;; possibly create the parent directories for file
+		      (when ((lambda (m) (and m (not (string= m "no"))))
+			     (funcall get-spec :mkdirp))
+			(make-directory (file-name-directory file-name) 'parents))
+		      ;; delete any old versions of file
+		      (when (and (file-exists-p file-name)
+				 (not (member file-name path-collector)))
+			(delete-file file-name))
+		      ;; drop source-block to file
+		      (with-temp-buffer
+			(when (fboundp lang-f) (ignore-errors (funcall lang-f)))
+			(when (and she-bang (not (member file-name she-banged)))
+			  (insert (concat she-bang "\n"))
+			  (setq she-banged (cons file-name she-banged)))
+			(org-babel-spec-to-string spec)
+			;; We avoid append-to-file as it does not work with tramp.
+			(let ((content (buffer-string)))
+			  (with-temp-buffer
+			    (if (file-exists-p file-name)
+				(insert-file-contents file-name))
+			    (goto-char (point-max))
+			    (insert content)
+			    (write-region nil nil file-name))))
+		      (set-file-modes
+		       file-name
+		       ;; never writable (don't accidentally edit tangled files)
+		       (if she-bang
+			   #o555 ;; files with she-bangs should be executable
+			 #o444)) ;; those without should not
+		      ;; update counter
+		      (setq block-counter (+ 1 block-counter))
+		      (add-to-list 'path-collector file-name)))))
+	      specs)))
+	 (org-babel-tangle-collect-blocks lang))
+	(message "Tangled %d code block%s from %s" block-counter
+		 (if (= block-counter 1) "" "s")
+		 (file-name-nondirectory
+		  (buffer-file-name (or (buffer-base-buffer) (current-buffer)))))
+	;; run `org-babel-post-tangle-hook' in all tangled files
+	(when org-babel-post-tangle-hook
+	  (mapc
+	   (lambda (file)
+	     (org-babel-with-temp-filebuffer file
+	       (run-hooks 'org-babel-post-tangle-hook)))
+	   path-collector))
+	path-collector))))
+
+(defun org-babel-tangle-clean ()
+  "Remove comments inserted by `org-babel-tangle'.
+Call this function inside of a source-code file generated by
+`org-babel-tangle' to remove all comments inserted automatically
+by `org-babel-tangle'.  Warning, this comment removes any lines
+containing constructs which resemble org-mode file links or noweb
+references."
+  (interactive)
+  (goto-char (point-min))
+  (while (or (re-search-forward "\\[\\[file:.*\\]\\[.*\\]\\]" nil t)
+             (re-search-forward (org-babel-noweb-wrap) nil t))
+    (delete-region (save-excursion (beginning-of-line 1) (point))
+                   (save-excursion (end-of-line 1) (forward-char 1) (point)))))
+
+(defvar org-stored-links)
+(defvar org-bracket-link-regexp)
+(defun org-babel-spec-to-string (spec)
+  "Insert SPEC into the current file.
+Insert the source-code specified by SPEC into the current
+source code file.  This function uses `comment-region' which
+assumes that the appropriate major-mode is set.  SPEC has the
+form
+
+  (start-line file link source-name params body comment)"
+  (let* ((start-line (nth 0 spec))
+	 (file (nth 1 spec))
+	 (link (nth 2 spec))
+	 (source-name (nth 3 spec))
+	 (body (nth 5 spec))
+	 (comment (nth 6 spec))
+	 (comments (cdr (assoc :comments (nth 4 spec))))
+	 (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec))))))
+	 (link-p (or (string= comments "both") (string= comments "link")
+		     (string= comments "yes") (string= comments "noweb")))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name)))
+	 (insert-comment (lambda (text)
+			   (when (and comments (not (string= comments "no"))
+				      (> (length text) 0))
+			     (when padline (insert "\n"))
+			     (comment-region (point) (progn (insert text) (point)))
+			     (end-of-line nil) (insert "\n")))))
+    (when comment (funcall insert-comment comment))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-beg link-data)))
+    (when padline (insert "\n"))
+    (insert
+     (format
+      "%s\n"
+      (replace-regexp-in-string
+       "^," ""
+       (org-babel-trim body (if org-src-preserve-indentation "[\f\n\r\v]")))))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-end link-data)))))
+
+(defun org-babel-tangle-collect-blocks (&optional language)
+  "Collect source blocks in the current Org-mode file.
+Return an association list of source-code block specifications of
+the form used by `org-babel-spec-to-string' grouped by language.
+Optional argument LANG can be used to limit the collected source
+code blocks by language."
+  (let ((block-counter 1) (current-heading "") blocks)
+    (org-babel-map-src-blocks (buffer-file-name)
+      ((lambda (new-heading)
+	 (if (not (string= new-heading current-heading))
+	     (progn
+	       (setq block-counter 1)
+	       (setq current-heading new-heading))
+	   (setq block-counter (+ 1 block-counter))))
+       (replace-regexp-in-string "[ \t]" "-"
+				 (condition-case nil
+				     (or (nth 4 (org-heading-components))
+					 "(dummy for heading without text)")
+				   (error (buffer-file-name)))))
+      (let* ((start-line (save-restriction (widen)
+					   (+ 1 (line-number-at-pos (point)))))
+	     (file (buffer-file-name))
+	     (info (org-babel-get-src-block-info 'light))
+	     (src-lang (nth 0 info)))
+        (unless (string= (cdr (assoc :tangle (nth 2 info))) "no")
+          (unless (and language (not (string= language src-lang)))
+	    (let* ((info (org-babel-get-src-block-info))
+		   (params (nth 2 info))
+		   (link ((lambda (link)
+			    (and (string-match org-bracket-link-regexp link)
+				 (match-string 1 link)))
+			  (org-no-properties
+			   (org-store-link nil))))
+		   (source-name
+		    (intern (or (nth 4 info)
+				(format "%s:%d"
+					current-heading block-counter))))
+		   (expand-cmd
+		    (intern (concat "org-babel-expand-body:" src-lang)))
+		   (assignments-cmd
+		    (intern (concat "org-babel-variable-assignments:" src-lang)))
+		   (body
+		    ((lambda (body) ;; run the tangle-body-hook
+		       (with-temp-buffer
+			 (insert body)
+			 (run-hooks 'org-babel-tangle-body-hook)
+			 (buffer-string)))
+		     ((lambda (body) ;; expand the body in language specific manner
+			(if (assoc :no-expand params)
+			    body
+			  (if (fboundp expand-cmd)
+			      (funcall expand-cmd body params)
+			    (org-babel-expand-body:generic
+			     body params
+			     (and (fboundp assignments-cmd)
+				  (funcall assignments-cmd params))))))
+		      (if (org-babel-noweb-p params :tangle)
+			  (org-babel-expand-noweb-references info)
+			(nth 1 info)))))
+		   (comment
+		    (when (or (string= "both" (cdr (assoc :comments params)))
+			      (string= "org" (cdr (assoc :comments params))))
+		      ;; from the previous heading or code-block end
+		      (funcall
+		       org-babel-process-comment-text
+		       (buffer-substring
+			(max (condition-case nil
+				 (save-excursion
+				   (org-back-to-heading t)  ; sets match data
+				   (match-end 0))
+			       (error (point-min)))
+			     (save-excursion
+			       (if (re-search-backward
+				    org-babel-src-block-regexp nil t)
+				   (match-end 0)
+				 (point-min))))
+			(point)))))
+		   by-lang)
+	      ;; add the spec for this block to blocks under it's language
+	      (setq by-lang (cdr (assoc src-lang blocks)))
+	      (setq blocks (delq (assoc src-lang blocks) blocks))
+	      (setq blocks (cons
+			    (cons src-lang
+				  (cons (list start-line file link
+					      source-name params body comment)
+					by-lang)) blocks)))))))
+    ;; ensure blocks in the correct order
+    (setq blocks
+          (mapcar
+	   (lambda (by-lang) (cons (car by-lang) (reverse (cdr by-lang))))
+	   blocks))
+    blocks))
+
+(defun org-babel-tangle-comment-links ( &optional info)
+  "Return a list of begin and end link comments for the code block at point."
+  (let* ((start-line (org-babel-where-is-src-block-head))
+	 (file (buffer-file-name))
+	 (link (org-link-escape (progn (call-interactively 'org-store-link)
+				       (org-no-properties
+					(car (pop org-stored-links))))))
+	 (source-name (nth 4 (or info (org-babel-get-src-block-info 'light))))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name))))
+    (list (org-fill-template org-babel-tangle-comment-format-beg link-data)
+	  (org-fill-template org-babel-tangle-comment-format-end link-data))))
+
+;; de-tangling functions
+(defvar org-bracket-link-analytic-regexp)
+(defun org-babel-detangle (&optional source-code-file)
+  "Propagate changes in source file back original to Org-mode file.
+This requires that code blocks were tangled with link comments
+which enable the original code blocks to be found."
+  (interactive)
+  (save-excursion
+    (when source-code-file (find-file source-code-file))
+    (goto-char (point-min))
+    (let ((counter 0) new-body end)
+      (while (re-search-forward org-bracket-link-analytic-regexp nil t)
+        (when (re-search-forward
+	       (concat " " (regexp-quote (match-string 5)) " ends here"))
+          (setq end (match-end 0))
+          (forward-line -1)
+          (save-excursion
+	    (when (setq new-body (org-babel-tangle-jump-to-org))
+	      (org-babel-update-block-body new-body)))
+          (setq counter (+ 1 counter)))
+        (goto-char end))
+      (prog1 counter (message "Detangled %d code blocks" counter)))))
+
+(defun org-babel-tangle-jump-to-org ()
+  "Jump from a tangled code file to the related Org-mode file."
+  (interactive)
+  (let ((mid (point))
+	start end done
+        target-buffer target-char link path block-name body)
+    (save-window-excursion
+      (save-excursion
+	(while (and (re-search-backward org-bracket-link-analytic-regexp nil t)
+		    (not ; ever wider searches until matching block comments
+		     (and (setq start (point-at-eol))
+			  (setq link (match-string 0))
+			  (setq path (match-string 3))
+			  (setq block-name (match-string 5))
+			  (save-excursion
+			    (save-match-data
+			      (re-search-forward
+			       (concat " " (regexp-quote block-name)
+				       " ends here") nil t)
+			      (setq end (point-at-bol))))))))
+	(unless (and start (< start mid) (< mid end))
+	  (error "Not in tangled code"))
+        (setq body (org-babel-trim (buffer-substring start end))))
+      (when (string-match "::" path)
+        (setq path (substring path 0 (match-beginning 0))))
+      (find-file path) (setq target-buffer (current-buffer))
+      (goto-char start) (org-open-link-from-string link)
+      (if (string-match "[^ \t\n\r]:\\([[:digit:]]+\\)" block-name)
+          (org-babel-next-src-block
+           (string-to-number (match-string 1 block-name)))
+        (org-babel-goto-named-src-block block-name))
+      (setq target-char (point)))
+    (pop-to-buffer target-buffer)
+    (prog1 body (goto-char target-char))))
+
+;;; ob-comint.el
+
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function tramp-flush-directory-property "tramp" (vec directory))
+
+(defun org-babel-comint-buffer-livep (buffer)
+  "Check if BUFFER is a comint buffer with a live process."
+  (let ((buffer (if buffer (get-buffer buffer))))
+    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
+
+(defmacro org-babel-comint-in-buffer (buffer &rest body)
+  "Check BUFFER and execute BODY.
+BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
+executed inside the protection of `save-excursion' and
+`save-match-data'."
+  (declare (indent 1))
+  `(save-excursion
+     (save-match-data
+       (unless (org-babel-comint-buffer-livep ,buffer)
+         (error "Buffer %s does not exist or has no process" ,buffer))
+       (set-buffer ,buffer)
+       ,@body)))
+(def-edebug-spec org-babel-comint-in-buffer (form body))
+
+(defmacro org-babel-comint-with-output (meta &rest body)
+  "Evaluate BODY in BUFFER and return process output.
+Will wait until EOE-INDICATOR appears in the output, then return
+all process output.  If REMOVE-ECHO and FULL-BODY are present and
+non-nil, then strip echo'd body from the returned output.  META
+should be a list containing the following where the last two
+elements are optional.
+
+ (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
+
+This macro ensures that the filter is removed in case of an error
+or user `keyboard-quit' during execution of body."
+  (declare (indent 1))
+  (let ((buffer (car meta))
+	(eoe-indicator (cadr meta))
+	(remove-echo (cadr (cdr meta)))
+	(full-body (cadr (cdr (cdr meta)))))
+    `(org-babel-comint-in-buffer ,buffer
+       (let ((string-buffer "") dangling-text raw)
+	 ;; setup filter
+	 (setq comint-output-filter-functions
+	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
+		     comint-output-filter-functions))
+	 (unwind-protect
+	     (progn
+	       ;; got located, and save dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (let ((start (point))
+		     (end (point-max)))
+		 (setq dangling-text (buffer-substring start end))
+		 (delete-region start end))
+	       ;; pass FULL-BODY to process
+	       ,@body
+	       ;; wait for end-of-evaluation indicator
+	       (while (progn
+			(goto-char comint-last-input-end)
+			(not (save-excursion
+			       (and (re-search-forward
+				     (regexp-quote ,eoe-indicator) nil t)
+				    (re-search-forward
+				     comint-prompt-regexp nil t)))))
+		 (accept-process-output (get-buffer-process (current-buffer)))
+		 ;; thought the following this would allow async
+		 ;; background running, but I was wrong...
+		 ;; (run-with-timer .5 .5 'accept-process-output
+		 ;; 		 (get-buffer-process (current-buffer)))
+		 )
+	       ;; replace cut dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (insert dangling-text))
+	   ;; remove filter
+	   (setq comint-output-filter-functions
+		 (cdr comint-output-filter-functions)))
+	 ;; remove echo'd FULL-BODY from input
+	 (if (and ,remove-echo ,full-body
+		  (string-match
+		   (replace-regexp-in-string
+		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
+		   string-buffer))
+	     (setq raw (substring string-buffer (match-end 0))))
+	 (split-string string-buffer comint-prompt-regexp)))))
+(def-edebug-spec org-babel-comint-with-output (form body))
+
+(defun org-babel-comint-input-command (buffer cmd)
+  "Pass CMD to BUFFER.
+The input will not be echoed."
+  (org-babel-comint-in-buffer buffer
+    (goto-char (process-mark (get-buffer-process buffer)))
+    (insert cmd)
+    (comint-send-input)
+    (org-babel-comint-wait-for-output buffer)))
+
+(defun org-babel-comint-wait-for-output (buffer)
+  "Wait until output arrives from BUFFER.
+Note: this is only safe when waiting for the result of a single
+statement (not large blocks of code)."
+  (org-babel-comint-in-buffer buffer
+    (while (progn
+             (goto-char comint-last-input-end)
+             (not (and (re-search-forward comint-prompt-regexp nil t)
+                       (goto-char (match-beginning 0))
+                       (string= (face-name (face-at-point))
+                                "comint-highlight-prompt"))))
+      (accept-process-output (get-buffer-process buffer)))))
+
+(defun org-babel-comint-eval-invisibly-and-wait-for-file
+  (buffer file string &optional period)
+  "Evaluate STRING in BUFFER invisibly.
+Don't return until FILE exists.  Code in STRING must ensure that
+FILE exists at end of evaluation."
+  (unless (org-babel-comint-buffer-livep buffer)
+    (error "Buffer %s does not exist or has no process" buffer))
+  (if (file-exists-p file) (delete-file file))
+  (process-send-string
+   (get-buffer-process buffer)
+   (if (string-match "\n$" string) string (concat string "\n")))
+  ;; From Tramp 2.1.19 the following cache flush is not necessary
+  (if (file-remote-p default-directory)
+      (let (v)
+	(with-parsed-tramp-file-name default-directory nil
+				     (tramp-flush-directory-property v ""))))
+  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
+
+;;; ob-ref
+
+(declare-function org-remove-if-not "org" (predicate seq))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-count "org" (CL-ITEM CL-SEQ))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
+(declare-function org-id-find-id-file "org-id" (id))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-pop-to-buffer-same-window
+		  "org-compat" (&optional buffer-or-name norecord label))
+
+(defvar org-babel-ref-split-regexp
+  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
+
+(defvar org-babel-update-intermediate nil
+  "Update the in-buffer results of code blocks executed to resolve references.")
+
+(defun org-babel-ref-parse (assignment)
+  "Parse a variable ASSIGNMENT in a header argument.
+If the right hand side of the assignment has a literal value
+return that value, otherwise interpret as a reference to an
+external resource and find its value using
+`org-babel-ref-resolve'.  Return a list with two elements.  The
+first element of the list will be the name of the variable, and
+the second will be an emacs-lisp representation of the value of
+the variable."
+  (when (string-match org-babel-ref-split-regexp assignment)
+    (let ((var (match-string 1 assignment))
+	  (ref (match-string 2 assignment)))
+      (cons (intern var)
+	    (let ((out (org-babel-read ref)))
+	      (if (equal out ref)
+		  (if (string-match "^\".*\"$" ref)
+		      (read ref)
+		    (org-babel-ref-resolve ref))
+		out))))))
+
+(defun org-babel-ref-goto-headline-id (id)
+  (goto-char (point-min))
+  (let ((rx (regexp-quote id)))
+    (or (re-search-forward
+	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
+	(let* ((file (org-id-find-id-file id))
+	       (m (when file (org-id-find-id-in-file id file 'marker))))
+	  (when (and file m)
+	    (message "file:%S" file)
+	    (org-pop-to-buffer-same-window (marker-buffer m))
+	    (goto-char m)
+	    (move-marker m nil)
+	    (org-show-context)
+	    t)))))
+
+(defun org-babel-ref-headline-body ()
+  (save-restriction
+    (org-narrow-to-subtree)
+    (buffer-substring
+     (save-excursion (goto-char (point-min))
+		     (forward-line 1)
+		     (when (looking-at "[ \t]*:PROPERTIES:")
+		       (re-search-forward ":END:" nil)
+		       (forward-char))
+		     (point))
+     (point-max))))
+
+(defvar org-babel-library-of-babel)
+(defun org-babel-ref-resolve (ref)
+  "Resolve the reference REF and return its value."
+  (save-window-excursion
+    (save-excursion
+      (let ((case-fold-search t)
+	    type args new-refere new-header-args new-referent result
+	    lob-info split-file split-ref index index-row index-col id)
+	;; if ref is indexed grab the indices -- beware nested indices
+	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
+		   (let ((str (substring ref 0 (match-beginning 0))))
+		     (= (org-count ?( str) (org-count ?) str))))
+	  (setq index (match-string 1 ref))
+	  (setq ref (substring ref 0 (match-beginning 0))))
+	;; assign any arguments to pass to source block
+	(when (string-match
+	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
+	  (setq new-refere      (match-string 1 ref))
+	  (setq new-header-args (match-string 3 ref))
+	  (setq new-referent    (match-string 5 ref))
+	  (when (> (length new-refere) 0)
+	    (when (> (length new-referent) 0)
+	      (setq args (mapcar (lambda (ref) (cons :var ref))
+				 (org-babel-ref-split-args new-referent))))
+	    (when (> (length new-header-args) 0)
+	      (setq args (append (org-babel-parse-header-arguments
+				  new-header-args) args)))
+	    (setq ref new-refere)))
+	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
+	  (setq split-file (match-string 1 ref))
+	  (setq split-ref (match-string 2 ref))
+	  (find-file split-file) (setq ref split-ref))
+	(save-restriction
+	  (widen)
+	  (goto-char (point-min))
+	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
+		    (res-rx (org-babel-named-data-regexp-for-name ref)))
+		;; goto ref in the current buffer
+		(or
+		 ;; check for code blocks
+		 (re-search-forward src-rx nil t)
+		 ;; check for named data
+		 (re-search-forward res-rx nil t)
+		 ;; check for local or global headlines by id
+		 (setq id (org-babel-ref-goto-headline-id ref))
+		 ;; check the Library of Babel
+		 (setq lob-info (cdr (assoc (intern ref)
+					    org-babel-library-of-babel)))))
+	      (unless (or lob-info id) (goto-char (match-beginning 0)))
+	    ;; ;; TODO: allow searching for names in other buffers
+	    ;; (setq id-loc (org-id-find ref 'marker)
+	    ;;       buffer (marker-buffer id-loc)
+	    ;;       loc (marker-position id-loc))
+	    ;; (move-marker id-loc nil)
+	    (error "Reference '%s' not found in this buffer" ref))
+	  (cond
+	   (lob-info (setq type 'lob))
+	   (id (setq type 'id))
+	   ((and (looking-at org-babel-src-name-regexp)
+		 (save-excursion
+		   (forward-line 1)
+		   (or (looking-at org-babel-src-block-regexp)
+		       (looking-at org-babel-multi-line-header-regexp))))
+	    (setq type 'source-block))
+	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
+		(forward-line 1)
+		(beginning-of-line)
+		(if (or (= (point) (point-min)) (= (point) (point-max)))
+		    (error "Reference not found")))))
+	  (let ((params (append args '((:results . "silent")))))
+	    (setq result
+		  (case type
+		    (results-line (org-babel-read-result))
+		    (table        (org-babel-read-table))
+		    (list         (org-babel-read-list))
+		    (file         (org-babel-read-link))
+		    (source-block (org-babel-execute-src-block
+				   nil nil (if org-babel-update-intermediate
+					       nil params)))
+		    (lob          (org-babel-execute-src-block
+				   nil lob-info params))
+		    (id           (org-babel-ref-headline-body)))))
+	  (if (symbolp result)
+	      (format "%S" result)
+	    (if (and index (listp result))
+		(org-babel-ref-index-list index result)
+	      result)))))))
+
+(defun org-babel-ref-index-list (index lis)
+  "Return the subset of LIS indexed by INDEX.
+
+Indices are 0 based and negative indices count from the end of
+LIS, so 0 references the first element of LIS and -1 references
+the last.  If INDEX is separated by \",\"s then each \"portion\"
+is assumed to index into the next deepest nesting or dimension.
+
+A valid \"portion\" can consist of either an integer index, two
+integers separated by a \":\" in which case the entire range is
+returned, or an empty string or \"*\" both of which are
+interpreted to mean the entire range and as such are equivalent
+to \"0:-1\"."
+  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
+      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
+	     (lgth (length lis))
+	     (portion (match-string 1 index))
+	     (remainder (substring index (match-end 0)))
+	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
+	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
+	(funcall
+	 open
+	 (mapcar
+	  (lambda (sub-lis)
+	    (if (listp sub-lis)
+		(org-babel-ref-index-list remainder sub-lis)
+	      sub-lis))
+	  (if (or (= 0 (length portion)) (string-match ind-re portion))
+	      (mapcar
+	       (lambda (n) (nth n lis))
+	       (apply 'org-number-sequence
+		      (if (and (> (length portion) 0) (match-string 2 portion))
+			  (list
+			   (funcall wrap (string-to-number (match-string 2 portion)))
+			   (funcall wrap (string-to-number (match-string 3 portion))))
+			(list (funcall wrap 0) (funcall wrap -1)))))
+	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
+    lis))
+
+(defun org-babel-ref-split-args (arg-string)
+  "Split ARG-STRING into top-level arguments of balanced parenthesis."
+  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
+
+(defvar org-bracket-link-regexp)
+(defun org-babel-ref-at-ref-p ()
+  "Return the type of reference located at point.
+Return nil if none of the supported reference types are found.
+Supported reference types are tables and source blocks."
+  (cond ((org-at-table-p) 'table)
+	((org-at-item-p) 'list)
+        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
+        ((looking-at org-bracket-link-regexp) 'file)
+        ((looking-at org-babel-result-regexp) 'results-line)))
 
 (provide 'ob)
 
diff --git a/lisp/org-src.el b/lisp/org-src.el
index f91da19..1b38aa2 100644
--- a/lisp/org-src.el
+++ b/lisp/org-src.el
@@ -32,8 +32,7 @@
 
 (require 'org-macs)
 (require 'org-compat)
-(require 'ob-keys)
-(require 'ob-comint)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
@@ -743,8 +742,6 @@ with \",*\", \",#+\", \",,*\" and \",,#+\"."
   (interactive)
   (org-src-in-org-buffer (save-buffer)))
 
-(declare-function org-babel-tangle "ob-tangle" (&optional only-this-block target-file lang))
-
 (defun org-src-tangle (arg)
   "Tangle the parent buffer."
   (interactive)
-- 
1.8.0.1


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-- 
 Bastien

Re: babel perl issue

[Bastien]

Bastien <bzg@altern.org> writes:

> Unless you find a bug in the dependencies and/or find a bug in the way
> dependancies are handled,

(I meant: "unless you find a bug and/or strongly dislike this solution")

-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Hi Eric,
>
> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> If you can find a cleaner alternative I'll be happy to help you
>> apply it.
>
> Here is a very crude patch for paving the way to a better solution.
>

This patch doesn't apply for me with "git am" to the HEAD of the repo so
I can't test it directly, however, judging from a quick review of the
patch and from your diagram I believe it will introduce circular
dependencies.

The crux of the problem is that all of the core ob files need to require
the main ob file, and the main ob file must require all of the core ob
files (so they can be required with a single invocation from outside
files).  Thus, to avoid circular requires, there must be a separate ob
and ob-core.  One to be required and one to do the requiring.

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Bastien]

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Eric Schulte <schulte.eric@gmail.com> writes:

> This patch doesn't apply for me with "git am" to the HEAD of the repo so
> I can't test it directly

Please try this new one against current db51b8 commit in master.

> , however, judging from a quick review of the
> patch and from your diagram I believe it will introduce circular
> dependencies.

Okay, please let me know if you find one.

It compiles with no warning with "make single", all tests passed
okay, and I'm using it with no problem.  But my environment does 
not cover all use-cases, of course.


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From 995fd6a158c344f3fec71cfada54d7ad159e2c42 Mon Sep 17 00:00:00 2001
From: Bastien Guerry <bzg@altern.org>
Date: Thu, 13 Dec 2012 22:31:19 +0100
Subject: [PATCH] Crude patch to simplify dependencies.

---
 lisp/ob-comint.el |  166 ---
 lisp/ob-core.el   | 2631 ------------------------------------
 lisp/ob-eval.el   |  261 ----
 lisp/ob-exp.el    |    3 +-
 lisp/ob-keys.el   |  105 --
 lisp/ob-lob.el    |  149 ---
 lisp/ob-ref.el    |  266 ----
 lisp/ob-table.el  |    2 +-
 lisp/ob-tangle.el |  528 --------
 lisp/ob.el        | 3832 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 lisp/org-src.el   |    5 +-
 11 files changed, 3826 insertions(+), 4122 deletions(-)
 delete mode 100644 lisp/ob-comint.el
 delete mode 100644 lisp/ob-core.el
 delete mode 100644 lisp/ob-eval.el
 delete mode 100644 lisp/ob-keys.el
 delete mode 100644 lisp/ob-lob.el
 delete mode 100644 lisp/ob-ref.el
 delete mode 100644 lisp/ob-tangle.el

diff --git a/lisp/ob-comint.el b/lisp/ob-comint.el
deleted file mode 100644
index c3afd35..0000000
--- a/lisp/ob-comint.el
+++ /dev/null
@@ -1,166 +0,0 @@
-;;; ob-comint.el --- org-babel functions for interaction with comint buffers
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build on comint to ease the sending and receiving
-;; of commands and results from comint buffers.
-
-;; Note that the buffers in this file are analogous to sessions in
-;; org-babel at large.
-
-;;; Code:
-(require 'ob-core)
-(require 'org-compat)
-(require 'comint)
-(eval-when-compile (require 'cl))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function tramp-flush-directory-property "tramp" (vec directory))
-
-(defun org-babel-comint-buffer-livep (buffer)
-  "Check if BUFFER is a comint buffer with a live process."
-  (let ((buffer (if buffer (get-buffer buffer))))
-    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
-
-(defmacro org-babel-comint-in-buffer (buffer &rest body)
-  "Check BUFFER and execute BODY.
-BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
-executed inside the protection of `save-excursion' and
-`save-match-data'."
-  (declare (indent 1))
-  `(save-excursion
-     (save-match-data
-       (unless (org-babel-comint-buffer-livep ,buffer)
-         (error "Buffer %s does not exist or has no process" ,buffer))
-       (set-buffer ,buffer)
-       ,@body)))
-(def-edebug-spec org-babel-comint-in-buffer (form body))
-
-(defmacro org-babel-comint-with-output (meta &rest body)
-  "Evaluate BODY in BUFFER and return process output.
-Will wait until EOE-INDICATOR appears in the output, then return
-all process output.  If REMOVE-ECHO and FULL-BODY are present and
-non-nil, then strip echo'd body from the returned output.  META
-should be a list containing the following where the last two
-elements are optional.
-
- (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
-
-This macro ensures that the filter is removed in case of an error
-or user `keyboard-quit' during execution of body."
-  (declare (indent 1))
-  (let ((buffer (car meta))
-	(eoe-indicator (cadr meta))
-	(remove-echo (cadr (cdr meta)))
-	(full-body (cadr (cdr (cdr meta)))))
-    `(org-babel-comint-in-buffer ,buffer
-       (let ((string-buffer "") dangling-text raw)
-	 ;; setup filter
-	 (setq comint-output-filter-functions
-	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
-		     comint-output-filter-functions))
-	 (unwind-protect
-	     (progn
-	       ;; got located, and save dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (let ((start (point))
-		     (end (point-max)))
-		 (setq dangling-text (buffer-substring start end))
-		 (delete-region start end))
-	       ;; pass FULL-BODY to process
-	       ,@body
-	       ;; wait for end-of-evaluation indicator
-	       (while (progn
-			(goto-char comint-last-input-end)
-			(not (save-excursion
-			       (and (re-search-forward
-				     (regexp-quote ,eoe-indicator) nil t)
-				    (re-search-forward
-				     comint-prompt-regexp nil t)))))
-		 (accept-process-output (get-buffer-process (current-buffer)))
-		 ;; thought the following this would allow async
-		 ;; background running, but I was wrong...
-		 ;; (run-with-timer .5 .5 'accept-process-output
-		 ;; 		 (get-buffer-process (current-buffer)))
-		 )
-	       ;; replace cut dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (insert dangling-text))
-	   ;; remove filter
-	   (setq comint-output-filter-functions
-		 (cdr comint-output-filter-functions)))
-	 ;; remove echo'd FULL-BODY from input
-	 (if (and ,remove-echo ,full-body
-		  (string-match
-		   (replace-regexp-in-string
-		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
-		   string-buffer))
-	     (setq raw (substring string-buffer (match-end 0))))
-	 (split-string string-buffer comint-prompt-regexp)))))
-(def-edebug-spec org-babel-comint-with-output (form body))
-
-(defun org-babel-comint-input-command (buffer cmd)
-  "Pass CMD to BUFFER.
-The input will not be echoed."
-  (org-babel-comint-in-buffer buffer
-    (goto-char (process-mark (get-buffer-process buffer)))
-    (insert cmd)
-    (comint-send-input)
-    (org-babel-comint-wait-for-output buffer)))
-
-(defun org-babel-comint-wait-for-output (buffer)
-  "Wait until output arrives from BUFFER.
-Note: this is only safe when waiting for the result of a single
-statement (not large blocks of code)."
-  (org-babel-comint-in-buffer buffer
-    (while (progn
-             (goto-char comint-last-input-end)
-             (not (and (re-search-forward comint-prompt-regexp nil t)
-                       (goto-char (match-beginning 0))
-                       (string= (face-name (face-at-point))
-                                "comint-highlight-prompt"))))
-      (accept-process-output (get-buffer-process buffer)))))
-
-(defun org-babel-comint-eval-invisibly-and-wait-for-file
-  (buffer file string &optional period)
-  "Evaluate STRING in BUFFER invisibly.
-Don't return until FILE exists.  Code in STRING must ensure that
-FILE exists at end of evaluation."
-  (unless (org-babel-comint-buffer-livep buffer)
-    (error "Buffer %s does not exist or has no process" buffer))
-  (if (file-exists-p file) (delete-file file))
-  (process-send-string
-   (get-buffer-process buffer)
-   (if (string-match "\n$" string) string (concat string "\n")))
-  ;; From Tramp 2.1.19 the following cache flush is not necessary
-  (if (file-remote-p default-directory)
-      (let (v)
-	(with-parsed-tramp-file-name default-directory nil
-				     (tramp-flush-directory-property v ""))))
-  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
-
-(provide 'ob-comint)
-
-
-
-;;; ob-comint.el ends here
diff --git a/lisp/ob-core.el b/lisp/ob-core.el
deleted file mode 100644
index 03ac6e1..0000000
--- a/lisp/ob-core.el
+++ /dev/null
@@ -1,2631 +0,0 @@
-;;; ob-core.el --- working with code blocks in org-mode
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-eval)
-(require 'org-macs)
-(require 'org-compat)
-
-(defconst org-babel-exeext
-  (if (memq system-type '(windows-nt cygwin))
-      ".exe"
-    nil))
-(defvar org-babel-call-process-region-original)
-(defvar org-src-lang-modes)
-(defvar org-babel-library-of-babel)
-(declare-function show-all "outline" ())
-(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
-(declare-function org-mark-ring-push "org" (&optional pos buffer))
-(declare-function tramp-compat-make-temp-file "tramp-compat"
-                  (filename &optional dir-flag))
-(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
-(declare-function tramp-file-name-user "tramp" (vec))
-(declare-function tramp-file-name-host "tramp" (vec))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function org-icompleting-read "org" (&rest args))
-(declare-function org-edit-src-code "org-src"
-                  (&optional context code edit-buffer-name quietp))
-(declare-function org-edit-src-exit "org-src"  (&optional context))
-(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
-(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
-(declare-function org-outline-overlay-data "org" (&optional use-markers))
-(declare-function org-set-outline-overlay-data "org" (data))
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-entry-get "org"
-		  (pom property &optional inherit literal-nil))
-(declare-function org-make-options-regexp "org" (kwds &optional extra))
-(declare-function org-do-remove-indentation "org" (&optional n))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-cycle "org" (&optional arg))
-(declare-function org-uniquify "org" (list))
-(declare-function org-current-level "org" ())
-(declare-function org-table-import "org-table" (file arg))
-(declare-function org-add-hook "org-compat"
-		  (hook function &optional append local))
-(declare-function org-table-align "org-table" ())
-(declare-function org-table-end "org-table" (&optional table-type))
-(declare-function orgtbl-to-generic "org-table" (table params))
-(declare-function orgtbl-to-orgtbl "org-table" (table params))
-(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
-(declare-function org-babel-lob-get-info "ob-lob" nil)
-(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
-(declare-function org-babel-ref-parse "ob-ref" (assignment))
-(declare-function org-babel-ref-resolve "ob-ref" (ref))
-(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
-(declare-function org-babel-ref-headline-body "ob-ref" ())
-(declare-function org-babel-lob-execute-maybe "ob-lob" ())
-(declare-function org-number-sequence "org-compat" (from &optional to inc))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-list-parse-list "org-list" (&optional delete))
-(declare-function org-list-to-generic "org-list" (LIST PARAMS))
-(declare-function org-list-struct "org-list" ())
-(declare-function org-list-prevs-alist "org-list" (struct))
-(declare-function org-list-get-list-end "org-list" (item struct prevs))
-(declare-function org-remove-if "org" (predicate seq))
-(declare-function org-completing-read "org" (&rest args))
-(declare-function org-escape-code-in-region "org-src" (beg end))
-(declare-function org-unescape-code-in-string "org-src" (s))
-(declare-function org-table-to-lisp "org-table" (&optional txt))
-
-(defgroup org-babel nil
-  "Code block evaluation and management in `org-mode' documents."
-  :tag "Babel"
-  :group 'org)
-
-(defcustom org-confirm-babel-evaluate t
-  "Confirm before evaluation.
-Require confirmation before interactively evaluating code
-blocks in Org-mode buffers.  The default value of this variable
-is t, meaning confirmation is required for any code block
-evaluation.  This variable can be set to nil to inhibit any
-future confirmation requests.  This variable can also be set to a
-function which takes two arguments the language of the code block
-and the body of the code block.  Such a function should then
-return a non-nil value if the user should be prompted for
-execution or nil if no prompt is required.
-
-Warning: Disabling confirmation may result in accidental
-evaluation of potentially harmful code.  It may be advisable
-remove code block execution from C-c C-c as further protection
-against accidental code block evaluation.  The
-`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
-remove code block execution from the C-c C-c keybinding."
-  :group 'org-babel
-  :version "24.1"
-  :type '(choice boolean function))
-;; don't allow this variable to be changed through file settings
-(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
-
-(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
-  "Remove code block evaluation from the C-c C-c key binding."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-
-(defcustom org-babel-results-keyword "RESULTS"
-  "Keyword used to name results generated by code blocks.
-Should be either RESULTS or NAME however any capitalization may
-be used."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-start "<<"
-  "String used to begin a noweb reference in a code block.
-See also `org-babel-noweb-wrap-end'."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-end ">>"
-  "String used to end a noweb reference in a code block.
-See also `org-babel-noweb-wrap-start'."
-  :group 'org-babel
-  :type 'string)
-
-(defun org-babel-noweb-wrap (&optional regexp)
-  (concat org-babel-noweb-wrap-start
-	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
-	  org-babel-noweb-wrap-end))
-
-(defvar org-babel-src-name-regexp
-  "^[ \t]*#\\+name:[ \t]*"
-  "Regular expression used to match a source name line.")
-
-(defvar org-babel-multi-line-header-regexp
-  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
-  "Regular expression used to match multi-line header arguments.")
-
-(defvar org-babel-src-name-w-name-regexp
-  (concat org-babel-src-name-regexp
-	  "\\("
-	  org-babel-multi-line-header-regexp
-	  "\\)*"
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
-  "Regular expression matching source name lines with a name.")
-
-(defvar org-babel-src-block-regexp
-  (concat
-   ;; (1) indentation                 (2) lang
-   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
-   ;; (3) switches
-   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
-   ;; (4) header arguments
-   "\\([^\n]*\\)\n"
-   ;; (5) body
-   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
-  "Regexp used to identify code blocks.")
-
-(defvar org-babel-inline-src-block-regexp
-  (concat
-   ;; (1) replacement target (2) lang
-   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
-   ;; (3,4) (unused, headers)
-   "\\(\\|\\[\\(.*?\\)\\]\\)"
-   ;; (5) body
-   "{\\([^\f\n\r\v]+?\\)}\\)")
-  "Regexp used to identify inline src-blocks.")
-
-(defun org-babel-get-header (params key &optional others)
-  "Select only header argument of type KEY from a list.
-Optional argument OTHERS indicates that only the header that do
-not match KEY should be returned."
-  (delq nil
-	(mapcar
-	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
-	 params)))
-
-(defun org-babel-get-inline-src-block-matches()
-  "Set match data if within body of an inline source block.
-Returns non-nil if match-data set"
-  (let ((src-at-0-p (save-excursion
-		      (beginning-of-line 1)
-		      (string= "src" (thing-at-point 'word))))
-	(first-line-p (= 1 (line-number-at-pos)))
-	(orig (point)))
-    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
-			    (first-line-p "[[:punct:] \t]src_")
-			    (t "[[:punct:] \f\t\n\r\v]src_")))
-	  (lower-limit (if first-line-p
-			   nil
-			 (- (point-at-bol) 1))))
-      (save-excursion
-	(when (or (and src-at-0-p (bobp))
-		  (and (re-search-forward "}" (point-at-eol) t)
-		       (re-search-backward search-for lower-limit t)
-		       (> orig (point))))
-	  (when (looking-at org-babel-inline-src-block-regexp)
-	    t ))))))
-
-(defvar org-babel-inline-lob-one-liner-regexp)
-(defun org-babel-get-lob-one-liner-matches()
-  "Set match data if on line of an lob one liner.
-Returns non-nil if match-data set"
-  (save-excursion
-    (unless (= (point) (point-at-bol)) ;; move before inline block
-      (re-search-backward "[ \f\t\n\r\v]" nil t))
-    (if (looking-at org-babel-inline-lob-one-liner-regexp)
-	t
-      nil)))
-
-(defun org-babel-get-src-block-info (&optional light)
-  "Get information on the current source block.
-
-Optional argument LIGHT does not resolve remote variable
-references; a process which could likely result in the execution
-of other code blocks.
-
-Returns a list
- (language body header-arguments-alist switches name indent)."
-  (let ((case-fold-search t) head info name indent)
-    ;; full code block
-    (if (setq head (org-babel-where-is-src-block-head))
-	(save-excursion
-	  (goto-char head)
-	  (setq info (org-babel-parse-src-block-match))
-	  (setq indent (car (last info)))
-	  (setq info (butlast info))
-	  (while (and (forward-line -1)
-		      (looking-at org-babel-multi-line-header-regexp))
-	    (setf (nth 2 info)
-		  (org-babel-merge-params
-		   (nth 2 info)
-		   (org-babel-parse-header-arguments (match-string 1)))))
-	  (when (looking-at org-babel-src-name-w-name-regexp)
-	    (setq name (org-no-properties (match-string 3)))
-	    (when (and (match-string 5) (> (length (match-string 5)) 0))
-	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
-		    (org-babel-merge-params
-		     (mapcar
-		      (lambda (ref) (cons :var ref))
-		      (mapcar
-		       (lambda (var) ;; check that each variable is initialized
-			 (if (string-match ".+=.+" var)
-			     var
-			   (error
-			    "variable \"%s\"%s must be assigned a default value"
-			    var (if name (format " in block \"%s\"" name) ""))))
-		       (org-babel-ref-split-args (match-string 5))))
-		     (nth 2 info))))))
-      ;; inline source block
-      (when (org-babel-get-inline-src-block-matches)
-	(setq info (org-babel-parse-inline-src-block-match))))
-    ;; resolve variable references and add summary parameters
-    (when (and info (not light))
-      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
-    (when info (append info (list name indent)))))
-
-(defvar org-current-export-file) ; dynamically bound
-(defun org-babel-confirm-evaluate (info)
-  "Confirm evaluation of the code block INFO.
-This behavior can be suppressed by setting the value of
-`org-confirm-babel-evaluate' to nil, in which case all future
-interactive code block evaluations will proceed without any
-confirmation from the user.
-
-Note disabling confirmation may result in accidental evaluation
-of potentially harmful code."
-  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
-		   (when (assoc :noeval (nth 2 info)) "no")))
-         (query (cond ((equal eval "query") t)
-		      ((and (boundp 'org-current-export-file)
-			    org-current-export-file
-			    (equal eval "query-export")) t)
-                      ((functionp org-confirm-babel-evaluate)
-                       (funcall org-confirm-babel-evaluate
-                                (nth 0 info) (nth 1 info)))
-                      (t org-confirm-babel-evaluate))))
-    (if (or (equal eval "never") (equal eval "no")
-	    (and (boundp 'org-current-export-file)
-		 org-current-export-file
-		 (or (equal eval "no-export")
-		     (equal eval "never-export")))
-	    (and query
-		 (not (yes-or-no-p
-		       (format "Evaluate this%scode block%son your system? "
-			       (if info (format " %s " (nth 0 info)) " ")
-			       (if (nth 4 info)
-				   (format " (%s) " (nth 4 info)) " "))))))
-	(prog1 nil (message "Evaluation %s"
-			    (if (or (equal eval "never") (equal eval "no")
-				    (equal eval "no-export")
-				    (equal eval "never-export"))
-				"Disabled" "Aborted")))
-      t)))
-
-;;;###autoload
-(defun org-babel-execute-safely-maybe ()
-  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
-    (org-babel-execute-maybe)))
-
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
-
-;;;###autoload
-(defun org-babel-execute-maybe ()
-  (interactive)
-  (or (org-babel-execute-src-block-maybe)
-      (org-babel-lob-execute-maybe)))
-
-(defun org-babel-execute-src-block-maybe ()
-  "Conditionally execute a source block.
-Detect if this is context for a Babel src-block and if so
-then run `org-babel-execute-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-eval-wipe-error-buffer)
-	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
-
-;;;###autoload
-(defun org-babel-view-src-block-info ()
-  "Display information on the current source block.
-This includes header arguments, language and name, and is largely
-a window into the `org-babel-get-src-block-info' function."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info 'light))
-	(full (lambda (it) (> (length it) 0)))
-	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
-    (when info
-      (with-help-window (help-buffer)
-	(let ((name        (nth 4 info))
-	      (lang        (nth 0 info))
-	      (switches    (nth 3 info))
-	      (header-args (nth 2 info)))
-	  (when name            (funcall printf "Name: %s\n"     name))
-	  (when lang            (funcall printf "Lang: %s\n"     lang))
-	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
-	  (funcall printf "Header Arguments:\n")
-	  (dolist (pair (sort header-args
-			      (lambda (a b) (string< (symbol-name (car a))
-						     (symbol-name (car b))))))
-	    (when (funcall full (cdr pair))
-	      (funcall printf "\t%S%s\t%s\n"
-		       (car pair)
-		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
-		       (cdr pair)))))))))
-
-;;;###autoload
-(defun org-babel-expand-src-block-maybe ()
-  "Conditionally expand a source block.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-expand-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-expand-src-block current-prefix-arg info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-load-in-session-maybe ()
-  "Conditionally load a source block in a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-load-in-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-load-in-session current-prefix-arg info) t)
-      nil)))
-
-(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
-
-;;;###autoload
-(defun org-babel-pop-to-session-maybe ()
-  "Conditionally pop to a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-pop-to-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
-
-(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
-
-(defconst org-babel-common-header-args-w-values
-  '((cache	. ((no yes)))
-    (cmdline	. :any)
-    (colnames	. ((nil no yes)))
-    (comments	. ((no link yes org both noweb)))
-    (dir	. :any)
-    (eval	. ((never query)))
-    (exports	. ((code results both none)))
-    (file	. :any)
-    (file-desc  . :any)
-    (hlines	. ((no yes)))
-    (mkdirp	. ((yes no)))
-    (no-expand)
-    (noeval)
-    (noweb	. ((yes no tangle no-export strip-export)))
-    (noweb-ref	. :any)
-    (noweb-sep  . :any)
-    (padline	. ((yes no)))
-    (results	. ((file list vector table scalar verbatim)
-		   (raw html latex org code pp drawer)
-		   (replace silent none append prepend)
-		   (output value)))
-    (rownames	. ((no yes)))
-    (sep	. :any)
-    (session	. :any)
-    (shebang	. :any)
-    (tangle	. ((tangle yes no :any)))
-    (var	. :any)
-    (wrap       . :any)))
-
-(defconst org-babel-header-arg-names
-  (mapcar #'car org-babel-common-header-args-w-values)
-  "Common header arguments used by org-babel.
-Note that individual languages may define their own language
-specific header arguments as well.")
-
-(defvar org-babel-default-header-args
-  '((:session . "none") (:results . "replace") (:exports . "code")
-    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
-    (:padnewline . "yes"))
-  "Default arguments to use when evaluating a source block.")
-
-(defvar org-babel-default-inline-header-args
-  '((:session . "none") (:results . "replace") (:exports . "results"))
-  "Default arguments to use when evaluating an inline source block.")
-
-(defvar org-babel-data-names '("tblname" "results" "name"))
-
-(defvar org-babel-result-regexp
-  (concat "^[ \t]*#\\+"
-	  (regexp-opt org-babel-data-names t)
-	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
-  "Regular expression used to match result lines.
-If the results are associated with a hash key then the hash will
-be saved in the second match data.")
-
-(defvar org-babel-result-w-name-regexp
-  (concat org-babel-result-regexp
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
-
-(defvar org-babel-min-lines-for-block-output 10
-  "The minimum number of lines for block output.
-If number of lines of output is equal to or exceeds this
-value, the output is placed in a #+begin_example...#+end_example
-block.  Otherwise the output is marked as literal by inserting
-colons at the starts of the lines.  This variable only takes
-effect if the :results output option is in effect.")
-
-(defvar org-babel-noweb-error-langs nil
-  "Languages for which Babel will raise literate programming errors.
-List of languages for which errors should be raised when the
-source code block satisfying a noweb reference in this language
-can not be resolved.")
-
-(defvar org-babel-hash-show 4
-  "Number of initial characters to show of a hidden results hash.")
-
-(defvar org-babel-after-execute-hook nil
-  "Hook for functions to be called after `org-babel-execute-src-block'")
-
-(defun org-babel-named-src-block-regexp-for-name (name)
-  "This generates a regexp used to match a src block named NAME."
-  (concat org-babel-src-name-regexp (regexp-quote name)
-	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
-	  (substring org-babel-src-block-regexp 1)))
-
-(defun org-babel-named-data-regexp-for-name (name)
-  "This generates a regexp used to match data named NAME."
-  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
-
-;;; functions
-(defvar call-process-region)
-
-;;;###autoload
-(defun org-babel-execute-src-block (&optional arg info params)
-  "Execute the current source code block.
-Insert the results of execution into the buffer.  Source code
-execution and the collection and formatting of results can be
-controlled through a variety of header arguments.
-
-With prefix argument ARG, force re-execution even if an existing
-result cached in the buffer would otherwise have been returned.
-
-Optionally supply a value for INFO in the form returned by
-`org-babel-get-src-block-info'.
-
-Optionally supply a value for PARAMS which will be merged with
-the header arguments specified at the front of the source code
-block."
-  (interactive)
-  (let ((info (or info (org-babel-get-src-block-info))))
-    (when (org-babel-confirm-evaluate
-	   (let ((i info))
-	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
-	     i))
-      (let* ((lang (nth 0 info))
-	     (params (if params
-			 (org-babel-process-params
-			  (org-babel-merge-params (nth 2 info) params))
-		       (nth 2 info)))
-	     (cache? (and (not arg) (cdr (assoc :cache params))
-			  (string= "yes" (cdr (assoc :cache params)))))
-	     (result-params (cdr (assoc :result-params params)))
-	     (new-hash (when cache? (org-babel-sha1-hash info)))
-	     (old-hash (when cache? (org-babel-current-result-hash)))
-	     (body (setf (nth 1 info)
-			 (if (org-babel-noweb-p params :eval)
-			     (org-babel-expand-noweb-references info)
-			   (nth 1 info))))
-	     (dir (cdr (assoc :dir params)))
-	     (default-directory
-	       (or (and dir (file-name-as-directory (expand-file-name dir)))
-		   default-directory))
-	     (org-babel-call-process-region-original
-	      (if (boundp 'org-babel-call-process-region-original)
-		  org-babel-call-process-region-original
-		(symbol-function 'call-process-region)))
-	     (indent (car (last info)))
-	     result cmd)
-	(unwind-protect
-	    (let ((call-process-region
-		   (lambda (&rest args)
-		     (apply 'org-babel-tramp-handle-call-process-region args))))
-	      (let ((lang-check (lambda (f)
-				  (let ((f (intern (concat "org-babel-execute:" f))))
-				    (when (fboundp f) f)))))
-		(setq cmd
-		      (or (funcall lang-check lang)
-			  (funcall lang-check (symbol-name
-					       (cdr (assoc lang org-src-lang-modes))))
-			  (error "No org-babel-execute function for %s!" lang))))
-	      (if (and (not arg) new-hash (equal new-hash old-hash))
-		  (save-excursion ;; return cached result
-		    (goto-char (org-babel-where-is-src-block-result nil info))
-		    (end-of-line 1) (forward-char 1)
-		    (setq result (org-babel-read-result))
-		    (message (replace-regexp-in-string
-			      "%" "%%" (format "%S" result))) result)
-		(message "executing %s code block%s..."
-			 (capitalize lang)
-			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
-		(if (member "none" result-params)
-		    (progn
-		      (funcall cmd body params)
-		      (message "result silenced"))
-		(setq result
-		      ((lambda (result)
-			 (if (and (eq (cdr (assoc :result-type params)) 'value)
-				  (or (member "vector" result-params)
-				      (member "table" result-params))
-				  (not (listp result)))
-			     (list (list result)) result))
-		       (funcall cmd body params)))
-		;; if non-empty result and :file then write to :file
-		(when (cdr (assoc :file params))
-		  (when result
-		    (with-temp-file (cdr (assoc :file params))
-		      (insert
-		       (org-babel-format-result
-			result (cdr (assoc :sep (nth 2 info)))))))
-		  (setq result (cdr (assoc :file params))))
-		(org-babel-insert-result
-		 result result-params info new-hash indent lang)
-		(run-hooks 'org-babel-after-execute-hook)
-		result
-		)))
-	  (setq call-process-region 'org-babel-call-process-region-original))))))
-
-(defun org-babel-expand-body:generic (body params &optional var-lines)
-  "Expand BODY with PARAMS.
-Expand a block of code with org-babel according to its header
-arguments.  This generic implementation of body expansion is
-called for languages which have not defined their own specific
-org-babel-expand-body:lang function."
-  (mapconcat #'identity (append var-lines (list body)) "\n"))
-
-;;;###autoload
-(defun org-babel-expand-src-block (&optional arg info params)
-  "Expand the current source code block.
-Expand according to the source code block's header
-arguments and pop open the results in a preview buffer."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-	 (params (setf (nth 2 info)
-                       (sort (org-babel-merge-params (nth 2 info) params)
-                             (lambda (el1 el2) (string< (symbol-name (car el1))
-							(symbol-name (car el2)))))))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-			 (org-babel-expand-noweb-references info) (nth 1 info))))
-         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
-	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
-					  lang)))
-         (expanded
-	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
-	    (org-babel-expand-body:generic
-	     body params (and (fboundp assignments-cmd)
-			      (funcall assignments-cmd params))))))
-    (org-edit-src-code
-     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
-
-(defun org-babel-edit-distance (s1 s2)
-  "Return the edit (levenshtein) distance between strings S1 S2."
-  (let* ((l1 (length s1))
-	 (l2 (length s2))
-	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
-				(number-sequence 1 (1+ l1)))))
-	 (in (lambda (i j) (aref (aref dist i) j))))
-    (setf (aref (aref dist 0) 0) 0)
-    (dolist (j (number-sequence 1 l2))
-      (setf (aref (aref dist 0) j) j))
-    (dolist (i (number-sequence 1 l1))
-      (setf (aref (aref dist i) 0) i)
-      (dolist (j (number-sequence 1 l2))
-	(setf (aref (aref dist i) j)
-	      (min
-	       (1+ (funcall in (1- i) j))
-	       (1+ (funcall in i (1- j)))
-	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
-		  (funcall in (1- i) (1- j)))))))
-    (funcall in l1 l2)))
-
-(defun org-babel-combine-header-arg-lists (original &rest others)
-  "Combine a number of lists of header argument names and arguments."
-  (let ((results (copy-sequence original)))
-    (dolist (new-list others)
-      (dolist (arg-pair new-list)
-	(let ((header (car arg-pair))
-	      (args (cdr arg-pair)))
-	  (setq results
-		(cons arg-pair (org-remove-if
-				(lambda (pair) (equal header (car pair)))
-				results))))))
-    results))
-
-;;;###autoload
-(defun org-babel-check-src-block ()
-  "Check for misspelled header arguments in the current code block."
-  (interactive)
-  ;; TODO: report malformed code block
-  ;; TODO: report incompatible combinations of header arguments
-  ;; TODO: report uninitialized variables
-  (let ((too-close 2) ;; <- control closeness to report potential match
-	(names (mapcar #'symbol-name org-babel-header-arg-names)))
-    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
-			    (and (org-babel-where-is-src-block-head)
-				 (org-babel-parse-header-arguments
-				  (org-no-properties
-				   (match-string 4))))))
-      (dolist (name names)
-	(when (and (not (string= header name))
-		   (<= (org-babel-edit-distance header name) too-close)
-		   (not (member header names)))
-	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
-		 header name))))
-    (message "No suspicious header arguments found.")))
-
-;;;###autoload
-(defun org-babel-insert-header-arg ()
-  "Insert a header argument selecting from lists of common args and values."
-  (interactive)
-  (let* ((lang (car (org-babel-get-src-block-info 'light)))
-	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
-	 (headers (org-babel-combine-header-arg-lists
-		   org-babel-common-header-args-w-values
-		   (if (boundp lang-headers) (eval lang-headers) nil)))
-	 (arg (org-icompleting-read
-	       "Header Arg: "
-	       (mapcar
-		(lambda (header-spec) (symbol-name (car header-spec)))
-		headers))))
-    (insert ":" arg)
-    (let ((vals (cdr (assoc (intern arg) headers))))
-      (when vals
-	(insert
-	 " "
-	 (cond
-	  ((eq vals :any)
-	   (read-from-minibuffer "value: "))
-	  ((listp vals)
-	   (mapconcat
-	    (lambda (group)
-	      (let ((arg (org-icompleting-read
-			  "value: "
-			  (cons "default" (mapcar #'symbol-name group)))))
-		(if (and arg (not (string= "default" arg)))
-		    (concat arg " ")
-		  "")))
-	    vals ""))))))))
-
-;; Add support for completing-read insertion of header arguments after ":"
-(defun org-babel-header-arg-expand ()
-  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
-  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
-    (org-babel-enter-header-arg-w-completion (match-string 2))))
-
-(defun org-babel-enter-header-arg-w-completion (&optional lang)
-  "Insert header argument appropriate for LANG with completion."
-  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
-         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
-	 (headers-w-values (org-babel-combine-header-arg-lists
-			    org-babel-common-header-args-w-values lang-headers))
-         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
-         (header (org-completing-read "Header Arg: " headers))
-         (args (cdr (assoc (intern header) headers-w-values)))
-         (arg (when (and args (listp args))
-                (org-completing-read
-                 (format "%s: " header)
-                 (mapcar #'symbol-name (apply #'append args))))))
-    (insert (concat header " " (or arg "")))
-    (cons header arg)))
-
-(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
-
-;;;###autoload
-(defun org-babel-load-in-session (&optional arg info)
-  "Load the body of the current source-code block.
-Evaluate the header arguments for the source block before
-entering the session.  After loading the body this pops open the
-session."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (params (nth 2 info))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-                         (org-babel-expand-noweb-references info)
-		       (nth 1 info))))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (cmd (intern (concat "org-babel-load-session:" lang))))
-    (unless (fboundp cmd)
-      (error "No org-babel-load-session function for %s!" lang))
-    (pop-to-buffer (funcall cmd session body params))
-    (end-of-line 1)))
-
-;;;###autoload
-(defun org-babel-initiate-session (&optional arg info)
-  "Initiate session for current code block.
-If called with a prefix argument then resolve any variable
-references in the header arguments and assign these variables in
-the session.  Copy the body of the code block to the kill ring."
-  (interactive "P")
-  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-         (params (nth 2 info))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
-	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
-    (if (and (stringp session) (string= session "none"))
-	(error "This block is not using a session!"))
-    (unless (fboundp init-cmd)
-      (error "No org-babel-initiate-session function for %s!" lang))
-    (with-temp-buffer (insert (org-babel-trim body))
-                      (copy-region-as-kill (point-min) (point-max)))
-    (when arg
-      (unless (fboundp prep-cmd)
-	(error "No org-babel-prep-session function for %s!" lang))
-      (funcall prep-cmd session params))
-    (funcall init-cmd session params)))
-
-;;;###autoload
-(defun org-babel-switch-to-session (&optional arg info)
-  "Switch to the session of the current code block.
-Uses `org-babel-initiate-session' to start the session.  If called
-with a prefix argument then this is passed on to
-`org-babel-initiate-session'."
-  (interactive "P")
-  (pop-to-buffer (org-babel-initiate-session arg info))
-  (end-of-line 1))
-
-(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
-
-;;;###autoload
-(defun org-babel-switch-to-session-with-code (&optional arg info)
-  "Switch to code buffer and display session."
-  (interactive "P")
-  (let ((swap-windows
-	 (lambda ()
-	   (let ((other-window-buffer (window-buffer (next-window))))
-	     (set-window-buffer (next-window) (current-buffer))
-	     (set-window-buffer (selected-window) other-window-buffer))
-	   (other-window 1)))
-	(info (org-babel-get-src-block-info))
-	(org-src-window-setup 'reorganize-frame))
-    (save-excursion
-      (org-babel-switch-to-session arg info))
-    (org-edit-src-code)
-    (funcall swap-windows)))
-
-(defmacro org-babel-do-in-edit-buffer (&rest body)
-  "Evaluate BODY in edit buffer if there is a code block at point.
-Return t if a code block was found at point, nil otherwise."
-  `(let ((org-src-window-setup 'switch-invisibly))
-     (when (and (org-babel-where-is-src-block-head)
-		(org-edit-src-code nil nil nil))
-       (unwind-protect (progn ,@body)
-	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
-	     (org-edit-src-exit)))
-       t)))
-(def-edebug-spec org-babel-do-in-edit-buffer (body))
-
-(defun org-babel-do-key-sequence-in-edit-buffer (key)
-  "Read key sequence and execute the command in edit buffer.
-Enter a key sequence to be executed in the language major-mode
-edit buffer.  For example, TAB will alter the contents of the
-Org-mode code block according to the effect of TAB in the
-language major-mode buffer.  For languages that support
-interactive sessions, this can be used to send code from the Org
-buffer to the session for evaluation using the native major-mode
-evaluation mechanisms."
-  (interactive "kEnter key-sequence to execute in edit buffer: ")
-  (org-babel-do-in-edit-buffer
-   (call-interactively
-    (key-binding (or key (read-key-sequence nil))))))
-
-(defvar org-bracket-link-regexp)
-
-;;;###autoload
-(defun org-babel-open-src-block-result (&optional re-run)
-  "If `point' is on a src block then open the results of the
-source code block, otherwise return nil.  With optional prefix
-argument RE-RUN the source-code block is evaluated even if
-results already exist."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info)))
-    (when info
-      (save-excursion
-	;; go to the results, if there aren't any then run the block
-	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
-		       (progn (org-babel-execute-src-block)
-			      (org-babel-where-is-src-block-result))))
-	(end-of-line 1)
-	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
-	;; open the results
-	(if (looking-at org-bracket-link-regexp)
-	    ;; file results
-	    (org-open-at-point)
-	  (let ((r (org-babel-format-result
-		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
-	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
-	    (delete-region (point-min) (point-max))
-	    (insert r)))
-	t))))
-
-;;;###autoload
-(defmacro org-babel-map-src-blocks (file &rest body)
-  "Evaluate BODY forms on each source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer.  During evaluation of BODY the following local variables
-are set relative to the currently matched code block.
-
-full-block ------- string holding the entirety of the code block
-beg-block -------- point at the beginning of the code block
-end-block -------- point at the end of the matched code block
-lang ------------- string holding the language of the code block
-beg-lang --------- point at the beginning of the lang
-end-lang --------- point at the end of the lang
-switches --------- string holding the switches
-beg-switches ----- point at the beginning of the switches
-end-switches ----- point at the end of the switches
-header-args ------ string holding the header-args
-beg-header-args -- point at the beginning of the header-args
-end-header-args -- point at the end of the header-args
-body ------------- string holding the body of the code block
-beg-body --------- point at the beginning of the body
-end-body --------- point at the end of the body"
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-src-block-regexp nil t)
-	   (goto-char (match-beginning 0))
-	   (let ((full-block (match-string 0))
-		 (beg-block (match-beginning 0))
-		 (end-block (match-end 0))
-		 (lang (match-string 2))
-		 (beg-lang (match-beginning 2))
-		 (end-lang (match-end 2))
-		 (switches (match-string 3))
-		 (beg-switches (match-beginning 3))
-		 (end-switches (match-end 3))
-		 (header-args (match-string 4))
-		 (beg-header-args (match-beginning 4))
-		 (end-header-args (match-end 4))
-		 (body (match-string 5))
-		 (beg-body (match-beginning 5))
-		 (end-body (match-end 5)))
-	     ,@body
-	     (goto-char end-block))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-src-blocks (form body))
-
-;;;###autoload
-(defmacro org-babel-map-inline-src-blocks (file &rest body)
-  "Evaluate BODY forms on each inline source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-inline-src-blocks (form body))
-
-(defvar org-babel-lob-one-liner-regexp)
-
-;;;###autoload
-(defmacro org-babel-map-call-lines (file &rest body)
-  "Evaluate BODY forms on each call line in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-call-lines (form body))
-
-;;;###autoload
-(defmacro org-babel-map-executables (file &rest body)
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file"))
-	(rx (make-symbol "rx")))
-    `(let* ((,tempvar ,file)
-	    (,rx (concat "\\(" org-babel-src-block-regexp
-			 "\\|" org-babel-inline-src-block-regexp
-			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward ,rx nil t)
-	   (goto-char (match-beginning 1))
-	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-executables (form body))
-
-;;;###autoload
-(defun org-babel-execute-buffer (&optional arg)
-  "Execute source code blocks in a buffer.
-Call `org-babel-execute-src-block' on every source block in
-the current buffer."
-  (interactive "P")
-  (org-babel-eval-wipe-error-buffer)
-  (org-save-outline-visibility t
-    (org-babel-map-executables nil
-      (if (looking-at org-babel-lob-one-liner-regexp)
-          (org-babel-lob-execute-maybe)
-        (org-babel-execute-src-block arg)))))
-
-;;;###autoload
-(defun org-babel-execute-subtree (&optional arg)
-  "Execute source code blocks in a subtree.
-Call `org-babel-execute-src-block' on every source block in
-the current subtree."
-  (interactive "P")
-  (save-restriction
-    (save-excursion
-      (org-narrow-to-subtree)
-      (org-babel-execute-buffer arg)
-      (widen))))
-
-;;;###autoload
-(defun org-babel-sha1-hash (&optional info)
-  "Generate an sha1 hash based on the value of info."
-  (interactive)
-  (let ((print-level nil)
-	(info (or info (org-babel-get-src-block-info))))
-    (setf (nth 2 info)
-	  (sort (copy-sequence (nth 2 info))
-		(lambda (a b) (string< (car a) (car b)))))
-    (let* ((rm (lambda (lst)
-		 (dolist (p '("replace" "silent" "none"
-			      "append" "prepend"))
-		   (setq lst (remove p lst)))
-		 lst))
-	   (norm (lambda (arg)
-		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
-				(copy-sequence (cdr arg))
-			      (cdr arg))))
-		     (when (and v (not (and (sequencep v)
-					    (not (consp v))
-					    (= (length v) 0))))
-		       (cond
-			((and (listp v) ; lists are sorted
-			      (member (car arg) '(:result-params)))
-			 (sort (funcall rm v) #'string<))
-			((and (stringp v) ; strings are sorted
-			      (member (car arg) '(:results :exports)))
-			 (mapconcat #'identity (sort (funcall rm (split-string v))
-						     #'string<) " "))
-			(t v)))))))
-      ((lambda (hash)
-	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
-       (let ((it (format "%s-%s"
-			 (mapconcat
-			  #'identity
-			  (delq nil (mapcar (lambda (arg)
-					      (let ((normalized (funcall norm arg)))
-						(when normalized
-						  (format "%S" normalized))))
-					    (nth 2 info))) ":")
-			 (nth 1 info))))
-	 (sha1 it))))))
-
-(defun org-babel-current-result-hash ()
-  "Return the current in-buffer hash."
-  (org-babel-where-is-src-block-result)
-  (org-no-properties (match-string 3)))
-
-(defun org-babel-set-current-result-hash (hash)
-  "Set the current in-buffer hash to HASH."
-  (org-babel-where-is-src-block-result)
-  (save-excursion (goto-char (match-beginning 3))
-		  ;; (mapc #'delete-overlay (overlays-at (point)))
-		  (replace-match hash nil nil nil 3)
-		  (org-babel-hide-hash)))
-
-(defun org-babel-hide-hash ()
-  "Hide the hash in the current results line.
-Only the initial `org-babel-hash-show' characters of the hash
-will remain visible."
-  (add-to-invisibility-spec '(org-babel-hide-hash . t))
-  (save-excursion
-    (when (and (re-search-forward org-babel-result-regexp nil t)
-               (match-string 3))
-      (let* ((start (match-beginning 3))
-             (hide-start (+ org-babel-hash-show start))
-             (end (match-end 3))
-             (hash (match-string 3))
-             ov1 ov2)
-        (setq ov1 (make-overlay start hide-start))
-        (setq ov2 (make-overlay hide-start end))
-        (overlay-put ov2 'invisible 'org-babel-hide-hash)
-        (overlay-put ov1 'babel-hash hash)))))
-
-(defun org-babel-hide-all-hashes ()
-  "Hide the hash in the current buffer.
-Only the initial `org-babel-hash-show' characters of each hash
-will remain visible.  This function should be called as part of
-the `org-mode-hook'."
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (goto-char (match-beginning 0))
-      (org-babel-hide-hash)
-      (goto-char (match-end 0)))))
-(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
-
-(defun org-babel-hash-at-point (&optional point)
-  "Return the value of the hash at POINT.
-The hash is also added as the last element of the kill ring.
-This can be called with C-c C-c."
-  (interactive)
-  (let ((hash (car (delq nil (mapcar
-			      (lambda (ol) (overlay-get ol 'babel-hash))
-                              (overlays-at (or point (point))))))))
-    (when hash (kill-new hash) (message hash))))
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
-
-(defun org-babel-result-hide-spec ()
-  "Hide portions of results lines.
-Add `org-babel-hide-result' as an invisibility spec for hiding
-portions of results lines."
-  (add-to-invisibility-spec '(org-babel-hide-result . t)))
-(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
-
-(defvar org-babel-hide-result-overlays nil
-  "Overlays hiding results.")
-
-(defun org-babel-result-hide-all ()
-  "Fold all results in the current buffer."
-  (interactive)
-  (org-babel-show-result-all)
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (save-excursion (goto-char (match-beginning 0))
-                      (org-babel-hide-result-toggle-maybe)))))
-
-(defun org-babel-show-result-all ()
-  "Unfold all results in the current buffer."
-  (mapc 'delete-overlay org-babel-hide-result-overlays)
-  (setq org-babel-hide-result-overlays nil))
-
-;;;###autoload
-(defun org-babel-hide-result-toggle-maybe ()
-  "Toggle visibility of result at point."
-  (interactive)
-  (let ((case-fold-search t))
-    (if (save-excursion
-          (beginning-of-line 1)
-          (looking-at org-babel-result-regexp))
-        (progn (org-babel-hide-result-toggle)
-               t) ;; to signal that we took action
-      nil))) ;; to signal that we did not
-
-(defun org-babel-hide-result-toggle (&optional force)
-  "Toggle the visibility of the current result."
-  (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (if (re-search-forward org-babel-result-regexp nil t)
-        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
-	      (end (progn
-		     (while (looking-at org-babel-multi-line-header-regexp)
-		       (forward-line 1))
-		     (goto-char (- (org-babel-result-end) 1)) (point)))
-	      ov)
-          (if (memq t (mapcar (lambda (overlay)
-                                (eq (overlay-get overlay 'invisible)
-				    'org-babel-hide-result))
-                              (overlays-at start)))
-              (if (or (not force) (eq force 'off))
-                  (mapc (lambda (ov)
-                          (when (member ov org-babel-hide-result-overlays)
-                            (setq org-babel-hide-result-overlays
-                                  (delq ov org-babel-hide-result-overlays)))
-                          (when (eq (overlay-get ov 'invisible)
-                                    'org-babel-hide-result)
-                            (delete-overlay ov)))
-                        (overlays-at start)))
-            (setq ov (make-overlay start end))
-            (overlay-put ov 'invisible 'org-babel-hide-result)
-            ;; make the block accessible to isearch
-            (overlay-put
-             ov 'isearch-open-invisible
-             (lambda (ov)
-               (when (member ov org-babel-hide-result-overlays)
-                 (setq org-babel-hide-result-overlays
-                       (delq ov org-babel-hide-result-overlays)))
-               (when (eq (overlay-get ov 'invisible)
-                         'org-babel-hide-result)
-                 (delete-overlay ov))))
-            (push ov org-babel-hide-result-overlays)))
-      (error "Not looking at a result line"))))
-
-;; org-tab-after-check-for-cycling-hook
-(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
-;; Remove overlays when changing major mode
-(add-hook 'org-mode-hook
-	  (lambda () (org-add-hook 'change-major-mode-hook
-				   'org-babel-show-result-all 'append 'local)))
-
-(defvar org-file-properties)
-(defun org-babel-params-from-properties (&optional lang)
-  "Retrieve parameters specified as properties.
-Return an association list of any source block params which
-may be specified in the properties of the current outline entry."
-  (save-match-data
-    (let (val sym)
-      (org-babel-parse-multiple-vars
-       (delq nil
-	     (mapcar
-	      (lambda (header-arg)
-		(and (setq val (org-entry-get (point) header-arg t))
-		     (cons (intern (concat ":" header-arg))
-			   (org-babel-read val))))
-	      (mapcar
-	       #'symbol-name
-	       (mapcar
-		#'car
-		(org-babel-combine-header-arg-lists
-		 org-babel-common-header-args-w-values
-		 (progn
-		   (setq sym (intern (concat "org-babel-header-args:" lang)))
-		   (and (boundp sym) (eval sym))))))))))))
-
-(defvar org-src-preserve-indentation)
-(defun org-babel-parse-src-block-match ()
-  "Parse the results from a match of the `org-babel-src-block-regexp'."
-  (let* ((block-indentation (length (match-string 1)))
-	 (lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
-	 (switches (match-string 3))
-         (body (org-no-properties
-		(let* ((body (match-string 5))
-		       (sub-length (- (length body) 1)))
-		  (if (and (> sub-length 0)
-			   (string= "\n" (substring body sub-length)))
-		      (substring body 0 sub-length)
-		    (or body "")))))
-	 (preserve-indentation (or org-src-preserve-indentation
-				   (save-match-data
-				     (string-match "-i\\>" switches)))))
-    (list lang
-          ;; get block body less properties, protective commas, and indentation
-          (with-temp-buffer
-            (save-match-data
-              (insert (org-unescape-code-in-string body))
-	      (unless preserve-indentation (org-do-remove-indentation))
-              (buffer-string)))
-	  (org-babel-merge-params
-	   org-babel-default-header-args
-           (org-babel-params-from-properties lang)
-	   (if (boundp lang-headers) (eval lang-headers) nil)
-	   (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) ""))))
-	  switches
-	  block-indentation)))
-
-(defun org-babel-parse-inline-src-block-match ()
-  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
-  (let* ((lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
-    (list lang
-          (org-unescape-code-in-string (org-no-properties (match-string 5)))
-          (org-babel-merge-params
-           org-babel-default-inline-header-args
-           (org-babel-params-from-properties lang)
-           (if (boundp lang-headers) (eval lang-headers) nil)
-           (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) "")))))))
-
-(defun org-babel-balanced-split (string alts)
-  "Split STRING on instances of ALTS.
-ALTS is a cons of two character options where each option may be
-either the numeric code of a single character or a list of
-character alternatives.  For example to split on balanced
-instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
-  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
-	 (matched (lambda (ch last)
-		    (if (consp alts)
-			(and (funcall matches ch (cdr alts))
-			     (funcall matches last (car alts)))
-		      (funcall matches ch alts))))
-	 (balance 0) (last 0)
-	 quote partial lst)
-    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
-	    (setq balance (+ balance
-			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
-				   ((or (equal 93 ch) (equal 41 ch)) -1)
-				   (t 0))))
-	    (when (and (equal 34 ch) (not (equal 92 last)))
-	      (setq quote (not quote)))
-	    (setq partial (cons ch partial))
-	    (when (and (= balance 0) (not quote) (funcall matched ch last))
-	      (setq lst (cons (apply #'string (nreverse
-					       (if (consp alts)
-						   (cddr partial)
-						 (cdr partial))))
-			      lst))
-	      (setq partial nil))
-	    (setq last ch))
-	  (string-to-list string))
-    (nreverse (cons (apply #'string (nreverse partial)) lst))))
-
-(defun org-babel-join-splits-near-ch (ch list)
-  "Join splits where \"=\" is on either end of the split."
-  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
-	(first= (lambda (str) (= ch (aref str 0)))))
-    (reverse
-     (org-reduce (lambda (acc el)
-		   (let ((head (car acc)))
-		     (if (and head (or (funcall last= head) (funcall first= el)))
-			 (cons (concat head el) (cdr acc))
-		       (cons el acc))))
-		 list :initial-value nil))))
-
-(defun org-babel-parse-header-arguments (arg-string)
-  "Parse a string of header arguments returning an alist."
-  (when (> (length arg-string) 0)
-    (org-babel-parse-multiple-vars
-     (delq nil
-	   (mapcar
-	    (lambda (arg)
-	      (if (string-match
-		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
-		   arg)
-		  (cons (intern (match-string 1 arg))
-			(org-babel-read (org-babel-chomp (match-string 2 arg))))
-		(cons (intern (org-babel-chomp arg)) nil)))
-	    ((lambda (raw)
-	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
-	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
-
-(defun org-babel-parse-multiple-vars (header-arguments)
-  "Expand multiple variable assignments behind a single :var keyword.
-
-This allows expression of multiple variables with one :var as
-shown below.
-
-#+PROPERTY: var foo=1, bar=2"
-  (let (results)
-    (mapc (lambda (pair)
-	    (if (eq (car pair) :var)
-		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
-			(org-babel-join-splits-near-ch
-			 61 (org-babel-balanced-split (cdr pair) 32)))
-	      (push pair results)))
-	  header-arguments)
-    (nreverse results)))
-
-(defun org-babel-process-params (params)
-  "Expand variables in PARAMS and add summary parameters."
-  (let* ((processed-vars (mapcar (lambda (el)
-				   (if (consp (cdr el))
-				       (cdr el)
-				     (org-babel-ref-parse (cdr el))))
-				 (org-babel-get-header params :var)))
-	 (vars-and-names (if (and (assoc :colname-names params)
-				  (assoc :rowname-names params))
-			     (list processed-vars)
-			   (org-babel-disassemble-tables
-			    processed-vars
-			    (cdr (assoc :hlines params))
-			    (cdr (assoc :colnames params))
-			    (cdr (assoc :rownames params)))))
-	 (raw-result (or (cdr (assoc :results params)) ""))
-	 (result-params (append
-			 (split-string (if (stringp raw-result)
-					   raw-result
-					 (eval raw-result)))
-			 (cdr (assoc :result-params params)))))
-    (append
-     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
-     (list
-      (cons :colname-names (or (cdr (assoc :colname-names params))
-			       (cadr  vars-and-names)))
-      (cons :rowname-names (or (cdr (assoc :rowname-names params))
-			       (caddr vars-and-names)))
-      (cons :result-params result-params)
-      (cons :result-type  (cond ((member "output" result-params) 'output)
-				((member "value" result-params) 'value)
-				(t 'value))))
-     (org-babel-get-header params :var 'other))))
-
-;; row and column names
-(defun org-babel-del-hlines (table)
-  "Remove all 'hlines from TABLE."
-  (remove 'hline table))
-
-(defun org-babel-get-colnames (table)
-  "Return the column names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names."
-  (if (equal 'hline (nth 1 table))
-      (cons (cddr table) (car table))
-    (cons (cdr table) (car table))))
-
-(defun org-babel-get-rownames (table)
-  "Return the row names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names.  Note: this function removes any hlines in TABLE."
-  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
-	 (width (apply 'max
-		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
-	 (table (funcall trans (mapcar (lambda (row)
-					 (if (not (equal row 'hline))
-					     row
-					   (setq row '())
-					   (dotimes (n width)
-					     (setq row (cons 'hline row)))
-					   row))
-				       table))))
-    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
-		  (funcall trans (cdr table)))
-	  (remove 'hline (car table)))))
-
-(defun org-babel-put-colnames (table colnames)
-  "Add COLNAMES to TABLE if they exist."
-  (if colnames (apply 'list colnames 'hline table) table))
-
-(defun org-babel-put-rownames (table rownames)
-  "Add ROWNAMES to TABLE if they exist."
-  (if rownames
-      (mapcar (lambda (row)
-                (if (listp row)
-                    (cons (or (pop rownames) "") row)
-                  row)) table)
-    table))
-
-(defun org-babel-pick-name (names selector)
-  "Select one out of an alist of row or column names.
-SELECTOR can be either a list of names in which case those names
-will be returned directly, or an index into the list NAMES in
-which case the indexed names will be return."
-  (if (listp selector)
-      selector
-    (when names
-      (if (and selector (symbolp selector) (not (equal t selector)))
-	  (cdr (assoc selector names))
-	(if (integerp selector)
-	    (nth (- selector 1) names)
-	  (cdr (car (last names))))))))
-
-(defun org-babel-disassemble-tables (vars hlines colnames rownames)
-  "Parse tables for further processing.
-Process the variables in VARS according to the HLINES,
-ROWNAMES and COLNAMES header arguments.  Return a list consisting
-of the vars, cnames and rnames."
-  (let (cnames rnames)
-    (list
-     (mapcar
-      (lambda (var)
-        (when (listp (cdr var))
-          (when (and (not (equal colnames "no"))
-                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
-                                       (not (member 'hline (cddr (cdr var)))))))
-            (let ((both (org-babel-get-colnames (cdr var))))
-              (setq cnames (cons (cons (car var) (cdr both))
-                                 cnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and rownames (not (equal rownames "no")))
-            (let ((both (org-babel-get-rownames (cdr var))))
-              (setq rnames (cons (cons (car var) (cdr both))
-                                 rnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and hlines (not (equal hlines "yes")))
-            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
-        var)
-      vars)
-     (reverse cnames) (reverse rnames))))
-
-(defun org-babel-reassemble-table (table colnames rownames)
-  "Add column and row names to a table.
-Given a TABLE and set of COLNAMES and ROWNAMES add the names
-to the table for reinsertion to org-mode."
-  (if (listp table)
-      ((lambda (table)
-         (if (and colnames (listp (car table)) (= (length (car table))
-                                                  (length colnames)))
-             (org-babel-put-colnames table colnames) table))
-       (if (and rownames (= (length table) (length rownames)))
-           (org-babel-put-rownames table rownames) table))
-    table))
-
-(defun org-babel-where-is-src-block-head ()
-  "Find where the current source block begins.
-Return the point at the beginning of the current source
-block.  Specifically at the beginning of the #+BEGIN_SRC line.
-If the point is not on a source block then return nil."
-  (let ((initial (point)) (case-fold-search t) top bottom)
-    (or
-     (save-excursion ;; on a source name line or a #+header line
-       (beginning-of-line 1)
-       (and (or (looking-at org-babel-src-name-regexp)
-		(looking-at org-babel-multi-line-header-regexp))
-	    (progn
-	      (while (and (forward-line 1)
-			  (or (looking-at org-babel-src-name-regexp)
-			      (looking-at org-babel-multi-line-header-regexp))))
-	      (looking-at org-babel-src-block-regexp))
-            (point)))
-     (save-excursion ;; on a #+begin_src line
-       (beginning-of-line 1)
-       (and (looking-at org-babel-src-block-regexp)
-            (point)))
-     (save-excursion ;; inside a src block
-       (and
-        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
-        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
-        (< top initial) (< initial bottom)
-        (progn (goto-char top) (beginning-of-line 1)
-	       (looking-at org-babel-src-block-regexp))
-        (point))))))
-
-;;;###autoload
-(defun org-babel-goto-src-block-head ()
-  "Go to the beginning of the current code block."
-  (interactive)
-  ((lambda (head)
-     (if head (goto-char head) (error "Not currently in a code block")))
-   (org-babel-where-is-src-block-head)))
-
-;;;###autoload
-(defun org-babel-goto-named-src-block (name)
-  "Go to a named source-code block."
-  (interactive
-   (let ((completion-ignore-case t)
-	 (case-fold-search t)
-	 (under-point (thing-at-point 'line)))
-     (list (org-icompleting-read
-	    "source-block name: " (org-babel-src-block-names) nil t
-	    (cond
-	     ;; noweb
-	     ((string-match (org-babel-noweb-wrap) under-point)
-	      (let ((block-name (match-string 1 under-point)))
-		(string-match "[^(]*" block-name)
-		(match-string 0 block-name)))
-	     ;; #+call:
-	     ((string-match org-babel-lob-one-liner-regexp under-point)
-	      (let ((source-info (car (org-babel-lob-get-info))))
-		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
-		    (let ((source-name (match-string 1 source-info)))
-		      source-name))))
-	     ;; #+results:
-	     ((string-match (concat "#\\+" org-babel-results-keyword
-				    "\\:\s+\\([^\\(]*\\)") under-point)
-	      (match-string 1 under-point))
-	     ;; symbol-at-point
-	     ((and (thing-at-point 'symbol))
-	      (org-babel-find-named-block (thing-at-point 'symbol))
-	      (thing-at-point 'symbol))
-	     (""))))))
-  (let ((point (org-babel-find-named-block name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
-      (message "source-code block '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-block (name)
-  "Find a named source-code block.
-Return the location of the source block identified by source
-NAME, or nil if no such block exists.  Set match data according to
-org-babel-named-src-block-regexp."
-  (save-excursion
-    (let ((case-fold-search t)
-	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
-      (goto-char (point-min))
-      (when (or (re-search-forward regexp nil t)
-		(re-search-backward regexp nil t))
-        (match-beginning 0)))))
-
-(defun org-babel-src-block-names (&optional file)
-  "Returns the names of source blocks in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
-	(setq names (cons (match-string 3) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-goto-named-result (name)
-  "Go to a named result."
-  (interactive
-   (let ((completion-ignore-case t))
-     (list (org-icompleting-read "source-block name: "
-				 (org-babel-result-names) nil t))))
-  (let ((point (org-babel-find-named-result name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (goto-char point) (org-show-context))
-      (message "result '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-result (name &optional point)
-  "Find a named result.
-Return the location of the result named NAME in the current
-buffer or nil if no such result exists."
-  (save-excursion
-    (let ((case-fold-search t))
-      (goto-char (or point (point-min)))
-      (catch 'is-a-code-block
-	(when (re-search-forward
-	       (concat org-babel-result-regexp
-		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
-	  (when (and (string= "name" (downcase (match-string 1)))
-		     (or (beginning-of-line 1)
-			 (looking-at org-babel-src-block-regexp)
-			 (looking-at org-babel-multi-line-header-regexp)))
-	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
-	  (beginning-of-line 0) (point))))))
-
-(defun org-babel-result-names (&optional file)
-  "Returns the names of results in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-result-w-name-regexp nil t)
-	(setq names (cons (match-string 4) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-next-src-block (&optional arg)
-  "Jump to the next source block.
-With optional prefix argument ARG, jump forward ARG many source blocks."
-  (interactive "P")
-  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
-  (condition-case nil
-      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No further code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-;;;###autoload
-(defun org-babel-previous-src-block (&optional arg)
-  "Jump to the previous source block.
-With optional prefix argument ARG, jump backward ARG many source blocks."
-  (interactive "P")
-  (condition-case nil
-      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No previous code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-(defvar org-babel-load-languages)
-
-;;;###autoload
-(defun org-babel-mark-block ()
-  "Mark current src block."
-  (interactive)
-  ((lambda (head)
-     (when head
-       (save-excursion
-	 (goto-char head)
-	 (looking-at org-babel-src-block-regexp))
-       (push-mark (match-end 5) nil t)
-       (goto-char (match-beginning 5))))
-   (org-babel-where-is-src-block-head)))
-
-(defun org-babel-demarcate-block (&optional arg)
-  "Wrap or split the code in the region or on the point.
-When called from inside of a code block the current block is
-split.  When called from outside of a code block a new code block
-is created.  In both cases if the region is demarcated and if the
-region is not active then the point is demarcated."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info 'light))
-	(headers (progn (org-babel-where-is-src-block-head)
-			(match-string 4)))
-	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
-    (if info
-        (mapc
-         (lambda (place)
-           (save-excursion
-             (goto-char place)
-             (let ((lang (nth 0 info))
-                   (indent (make-string (nth 5 info) ? )))
-	       (when (string-match "^[[:space:]]*$"
-				   (buffer-substring (point-at-bol)
-						     (point-at-eol)))
-		 (delete-region (point-at-bol) (point-at-eol)))
-               (insert (concat
-			(if (looking-at "^") "" "\n")
-			indent "#+end_src\n"
-			(if arg stars indent) "\n"
-			indent "#+begin_src " lang
-			(if (> (length headers) 1)
-			    (concat " " headers) headers)
-			(if (looking-at "[\n\r]")
-			    ""
-			  (concat "\n" (make-string (current-column) ? )))))))
-	   (move-end-of-line 2))
-         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
-      (let ((start (point))
-	    (lang (org-icompleting-read "Lang: "
-					(mapcar (lambda (el) (symbol-name (car el)))
-						org-babel-load-languages)))
-	    (body (delete-and-extract-region
-		   (if (org-region-active-p) (mark) (point)) (point))))
-	(insert (concat (if (looking-at "^") "" "\n")
-			(if arg (concat stars "\n") "")
-			"#+begin_src " lang "\n"
-			body
-			(if (or (= (length body) 0)
-				(string-match "[\r\n]$" body)) "" "\n")
-			"#+end_src\n"))
-	(goto-char start) (move-end-of-line 1)))))
-
-(defvar org-babel-lob-one-liner-regexp)
-(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
-  "Find where the current source block results begin.
-Return the point at the beginning of the result of the current
-source block.  Specifically at the beginning of the results line.
-If no result exists for this block then create a results line
-following the source block."
-  (save-excursion
-    (let* ((case-fold-search t)
-	   (on-lob-line (save-excursion
-			  (beginning-of-line 1)
-			  (looking-at org-babel-lob-one-liner-regexp)))
-	   (inlinep (when (org-babel-get-inline-src-block-matches)
-		      (match-end 0)))
-	   (name (if on-lob-line
-		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
-		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
-	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
-	   found beg end)
-      (when head (goto-char head))
-      (org-with-wide-buffer
-       (setq
-	found ;; was there a result (before we potentially insert one)
-	(or
-	 inlinep
-	 (and
-	  ;; named results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it does not need to be rebuilt, then don't set end
-	  ;; - if it does need to be rebuilt then do set end
-	  name (setq beg (org-babel-find-named-result name))
-	  (prog1 beg
-	    (when (and hash (not (string= hash (match-string 3))))
-	      (goto-char beg) (setq end beg) ;; beginning of result
-	      (forward-line 1)
-	      (delete-region end (org-babel-result-end)) nil)))
-	 (and
-	  ;; unnamed results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it is found, and the hash doesn't match, delete and set end
-	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
-	  (progn (end-of-line 1)
-		 (if (eobp) (insert "\n") (forward-char 1))
-		 (setq end (point))
-		 (or (and (not name)
-			  (progn ;; unnamed results line already exists
-			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
-			    (beginning-of-line 1)
-			    (looking-at
-			     (concat org-babel-result-regexp "\n")))
-			  (prog1 (point)
-			    ;; must remove and rebuild if hash!=old-hash
-			    (if (and hash (not (string= hash (match-string 3))))
-				(prog1 nil
-				  (forward-line 1)
-				  (delete-region
-				   end (org-babel-result-end)))
-			      (setq end nil))))))))))
-      (if (not (and insert end)) found
-	(goto-char end)
-	(unless beg
-	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
-	(insert (concat
-		 (when (wholenump indent) (make-string indent ? ))
-		 "#+" org-babel-results-keyword
-		 (when hash (concat "["hash"]"))
-		 ":"
-		 (when name (concat " " name)) "\n"))
-	(unless beg (insert "\n") (backward-char))
-	(beginning-of-line 0)
-	(if hash (org-babel-hide-hash))
-	(point)))))
-
-(defvar org-block-regexp)
-(defun org-babel-read-result ()
-  "Read the result at `point' into emacs-lisp."
-  (let ((case-fold-search t) result-string)
-    (cond
-     ((org-at-table-p) (org-babel-read-table))
-     ((org-at-item-p) (org-babel-read-list))
-     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
-     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
-     ((looking-at "^[ \t]*: ")
-      (setq result-string
-	    (org-babel-trim
-	     (mapconcat (lambda (line)
-                          (if (and (> (length line) 1)
-                                   (string-match "^[ \t]*: \\(.+\\)" line))
-                              (match-string 1 line)
-                            line))
-			(split-string
-			 (buffer-substring
-                          (point) (org-babel-result-end)) "[\r\n]+")
-			"\n")))
-      (or (org-babel-number-p result-string) result-string))
-     ((looking-at org-babel-result-regexp)
-      (save-excursion (forward-line 1) (org-babel-read-result))))))
-
-(defun org-babel-read-table ()
-  "Read the table at `point' into emacs-lisp."
-  (mapcar (lambda (row)
-            (if (and (symbolp row) (equal row 'hline)) row
-              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
-          (org-table-to-lisp)))
-
-(defun org-babel-read-list ()
-  "Read the list at `point' into emacs-lisp."
-  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
-	  (mapcar #'cadr (cdr (org-list-parse-list)))))
-
-(defvar org-link-types-re)
-(defun org-babel-read-link ()
-  "Read the link at `point' into emacs-lisp.
-If the path of the link is a file path it is expanded using
-`expand-file-name'."
-  (let* ((case-fold-search t)
-         (raw (and (looking-at org-bracket-link-regexp)
-                   (org-no-properties (match-string 1))))
-         (type (and (string-match org-link-types-re raw)
-                    (match-string 1 raw))))
-    (cond
-     ((not type) (expand-file-name raw))
-     ((string= type "file")
-      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
-           (expand-file-name (match-string 2 raw))))
-     (t raw))))
-
-(defun org-babel-format-result (result &optional sep)
-  "Format RESULT for writing to file."
-  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
-    (if (listp result)
-	;; table result
-	(orgtbl-to-generic
-	 result (list :sep (or sep "\t") :fmt echo-res))
-      ;; scalar result
-      (funcall echo-res result))))
-
-(defun org-babel-insert-result
-  (result &optional result-params info hash indent lang)
-  "Insert RESULT into the current buffer.
-By default RESULT is inserted after the end of the
-current source block.  With optional argument RESULT-PARAMS
-controls insertion of results in the org-mode file.
-RESULT-PARAMS can take the following values:
-
-replace - (default option) insert results after the source block
-          replacing any previously inserted results
-
-silent -- no results are inserted into the Org-mode buffer but
-          the results are echoed to the minibuffer and are
-          ingested by Emacs (a potentially time consuming
-          process)
-
-file ---- the results are interpreted as a file path, and are
-          inserted into the buffer using the Org-mode file syntax
-
-list ---- the results are interpreted as an Org-mode list.
-
-raw ----- results are added directly to the Org-mode file.  This
-          is a good option if you code block will output org-mode
-          formatted text.
-
-drawer -- results are added directly to the Org-mode file as with
-          \"raw\", but are wrapped in a RESULTS drawer, allowing
-          them to later be replaced or removed automatically.
-
-org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
-          They are not comma-escaped when inserted, but Org syntax
-          here will be discarded when exporting the file.
-
-html ---- results are added inside of a #+BEGIN_HTML block.  This
-          is a good option if you code block will output html
-          formatted text.
-
-latex --- results are added inside of a #+BEGIN_LATEX block.
-          This is a good option if you code block will output
-          latex formatted text.
-
-code ---- the results are extracted in the syntax of the source
-          code of the language being evaluated and are added
-          inside of a #+BEGIN_SRC block with the source-code
-          language set appropriately.  Note this relies on the
-          optional LANG argument."
-  (if (stringp result)
-      (progn
-        (setq result (org-no-properties result))
-        (when (member "file" result-params)
-	  (setq result (org-babel-result-to-file
-			result (when (assoc :file-desc (nth 2 info))
-				 (or (cdr (assoc :file-desc (nth 2 info)))
-				     result))))))
-    (unless (listp result) (setq result (format "%S" result))))
-  (if (and result-params (member "silent" result-params))
-      (progn
-	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
-	result)
-    (save-excursion
-      (let* ((inlinep
-	      (save-excursion
-		(when (or (org-babel-get-inline-src-block-matches)
-			  (org-babel-get-lob-one-liner-matches))
-		  (goto-char (match-end 0))
-		  (insert (if (listp result) "\n" " "))
-		  (point))))
-	     (existing-result (unless inlinep
-				(org-babel-where-is-src-block-result
-				 t info hash indent)))
-	     (results-switches
-	      (cdr (assoc :results_switches (nth 2 info))))
-	     (visible-beg (copy-marker (point-min)))
-	     (visible-end (copy-marker (point-max)))
-	     ;; When results exist outside of the current visible
-	     ;; region of the buffer, be sure to widen buffer to
-	     ;; update them.
-	     (outside-scope-p (and existing-result
-				   (or (> visible-beg existing-result)
-				       (<= visible-end existing-result))))
-	     beg end)
-	(when (and (stringp result)  ; ensure results end in a newline
-		   (not inlinep)
-		   (> (length result) 0)
-		   (not (or (string-equal (substring result -1) "\n")
-			    (string-equal (substring result -1) "\r"))))
-	  (setq result (concat result "\n")))
-	(unwind-protect
-	    (progn
-	      (when outside-scope-p (widen))
-	      (if (not existing-result)
-		  (setq beg (or inlinep (point)))
-		(goto-char existing-result)
-		(save-excursion
-		  (re-search-forward "#" nil t)
-		  (setq indent (- (current-column) 1)))
-		(forward-line 1)
-		(setq beg (point))
-		(cond
-		 ((member "replace" result-params)
-		  (delete-region (point) (org-babel-result-end)))
-		 ((member "append" result-params)
-		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
-		 ((member "prepend" result-params)))) ; already there
-	      (setq results-switches
-		    (if results-switches (concat " " results-switches) ""))
-	      (let ((wrap (lambda (start finish &optional no-escape)
-			    (goto-char end) (insert (concat finish "\n"))
-			    (goto-char beg) (insert (concat start "\n"))
-			    (unless no-escape
-			      (org-escape-code-in-region (point) end))
-			    (goto-char end) (goto-char (point-at-eol))
-			    (setq end (point-marker))))
-		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
-		;; insert results based on type
-		(cond
-		 ;; do nothing for an empty result
-		 ((null result))
-		 ;; insert a list if preferred
-		 ((member "list" result-params)
-		  (insert
-		   (org-babel-trim
-		    (org-list-to-generic
-		     (cons 'unordered
-			   (mapcar
-			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
-			    (if (listp result) result (list result))))
-		     '(:splicep nil :istart "- " :iend "\n")))
-		   "\n"))
-		 ;; assume the result is a table if it's not a string
-		 ((funcall proper-list-p result)
-		  (goto-char beg)
-		  (insert (concat (orgtbl-to-orgtbl
-				   (if (or (eq 'hline (car result))
-					   (and (listp (car result))
-						(listp (cdr (car result)))))
-				       result (list result))
-				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
-		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
-		 ((and (listp result) (not (funcall proper-list-p result)))
-		  (insert (format "%s\n" result)))
-		 ((member "file" result-params)
-		  (when inlinep (goto-char inlinep))
-		  (insert result))
-		 (t (goto-char beg) (insert result)))
-		(when (funcall proper-list-p result) (goto-char (org-table-end)))
-		(setq end (point-marker))
-		;; possibly wrap result
-		(cond
-		 ((assoc :wrap (nth 2 info))
-		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
-		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
-		 ((member "html" result-params)
-		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
-		 ((member "latex" result-params)
-		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
-		 ((member "org" result-params)
-		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
-		 ((member "code" result-params)
-		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
-			   "#+END_SRC"))
-		 ((member "raw" result-params)
-		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
-		 ((or (member "drawer" result-params)
-		      ;; Stay backward compatible with <7.9.2
-		      (member "wrap" result-params))
-		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
-		 ((and (not (funcall proper-list-p result))
-		       (not (member "file" result-params)))
-		  (org-babel-examplize-region beg end results-switches)
-		  (setq end (point)))))
-	      ;; possibly indent the results to match the #+results line
-	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
-			 ;; in this case `table-align' does the work for us
-			 (not (and (listp result)
-				   (member "append" result-params))))
-		(indent-rigidly beg end indent))
-	      (if (null result)
-		  (if (member "value" result-params)
-		      (message "Code block returned no value.")
-		    (message "Code block produced no output."))
-		(message "Code block evaluation complete.")))
-	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
-	  (set-marker visible-beg nil)
-	  (set-marker visible-end nil))))))
-
-(defun org-babel-remove-result (&optional info)
-  "Remove the result of the current source block."
-  (interactive)
-  (let ((location (org-babel-where-is-src-block-result nil info)) start)
-    (when location
-      (setq start (- location 1))
-      (save-excursion
-        (goto-char location) (forward-line 1)
-        (delete-region start (org-babel-result-end))))))
-
-(defun org-babel-result-end ()
-  "Return the point at the end of the current set of results."
-  (save-excursion
-    (cond
-     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
-     ((org-at-item-p) (let* ((struct (org-list-struct))
-			     (prvs (org-list-prevs-alist struct)))
-			(org-list-get-list-end (point-at-bol) struct prvs)))
-     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
-      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
-	     (forward-char 1) (point)))
-     (t
-      (let ((case-fold-search t))
-	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
-	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
-				      nil t)
-		   (forward-char 1))
-	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
-	    (forward-line 1))))
-      (point)))))
-
-(defun org-babel-result-to-file (result &optional description)
-  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
-If the `default-directory' is different from the containing
-file's directory then expand relative links."
-  (when (stringp result)
-    (format "[[file:%s]%s]"
-	    (if (and default-directory
-		     buffer-file-name
-		     (not (string= (expand-file-name default-directory)
-				   (expand-file-name
-				    (file-name-directory buffer-file-name)))))
-		(expand-file-name result default-directory)
-	      result)
-	    (if description (concat "[" description "]") ""))))
-
-(defvar org-babel-capitalize-examplize-region-markers nil
-  "Make true to capitalize begin/end example markers inserted by code blocks.")
-
-(defun org-babel-examplize-region (beg end &optional results-switches)
-  "Comment out region using the inline '==' or ': ' org example quote."
-  (interactive "*r")
-  (let ((chars-between (lambda (b e)
-			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
-	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
-				     (upcase str) str))))
-    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
-	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
-	(save-excursion
-	  (goto-char beg)
-	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
-				   (delete-region beg end)))))
-      (let ((size (count-lines beg end)))
-	(save-excursion
-	  (cond ((= size 0))	      ; do nothing for an empty result
-		((< size org-babel-min-lines-for-block-output)
-		 (goto-char beg)
-		 (dotimes (n size)
-		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
-		(t
-		 (goto-char beg)
-		 (insert (if results-switches
-			     (format "%s%s\n"
-				     (funcall maybe-cap "#+begin_example")
-				     results-switches)
-			   (funcall maybe-cap "#+begin_example\n")))
-		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
-		 (insert (funcall maybe-cap "#+end_example\n")))))))))
-
-(defun org-babel-update-block-body (new-body)
-  "Update the body of the current code block to NEW-BODY."
-  (if (not (org-babel-where-is-src-block-head))
-      (error "Not in a source block")
-    (save-match-data
-      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
-    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
-
-(defun org-babel-merge-params (&rest plists)
-  "Combine all parameter association lists in PLISTS.
-Later elements of PLISTS override the values of previous elements.
-This takes into account some special considerations for certain
-parameters when merging lists."
-  (let* ((results-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
-	 (exports-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
-	 (variable-index 0)
-	 (e-merge (lambda (exclusive-groups &rest result-params)
-		    ;; maintain exclusivity of mutually exclusive parameters
-		    (let (output)
-		      (mapc (lambda (new-params)
-			      (mapc (lambda (new-param)
-				      (mapc (lambda (exclusive-group)
-					      (when (member new-param exclusive-group)
-						(mapcar (lambda (excluded-param)
-							  (setq output
-								(delete
-								 excluded-param
-								 output)))
-							exclusive-group)))
-					    exclusive-groups)
-				      (setq output (org-uniquify
-						    (cons new-param output))))
-				    new-params))
-			    result-params)
-		      output)))
-	 params results exports tangle noweb cache vars shebang comments padline)
-
-    (mapc
-     (lambda (plist)
-       (mapc
-	(lambda (pair)
-	  (case (car pair)
-	    (:var
-	     (let ((name (if (listp (cdr pair))
-			     (cadr pair)
-			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
-					      (cdr pair))
-				(intern (match-string 1 (cdr pair)))))))
-	       (if name
-		   (setq vars
-			 (append
-			  (if (member name (mapcar #'car vars))
-			      (delq nil
-				    (mapcar
-				     (lambda (p)
-				       (unless (equal (car p) name) p))
-				     vars))
-			    vars)
-			  (list (cons name pair))))
-		 ;; if no name is given and we already have named variables
-		 ;; then assign to named variables in order
-		 (if (and vars (nth variable-index vars))
-		     (prog1 (setf (cddr (nth variable-index vars))
-				  (concat (symbol-name
-					   (car (nth variable-index vars)))
-					  "=" (cdr pair)))
-		       (incf variable-index))
-		   (error "Variable \"%s\" must be assigned a default value"
-			  (cdr pair))))))
-	    (:results
-	     (setq results (funcall e-merge results-exclusive-groups
-				    results
-				    (split-string
-				     (let ((r (cdr pair)))
-				       (if (stringp r) r (eval r)))))))
-	    (:file
-	     (when (cdr pair)
-	       (setq results (funcall e-merge results-exclusive-groups
-				      results '("file")))
-	       (unless (or (member "both" exports)
-			   (member "none" exports)
-			   (member "code" exports))
-		 (setq exports (funcall e-merge exports-exclusive-groups
-					exports '("results"))))
-	       (setq params (cons pair (assq-delete-all (car pair) params)))))
-	    (:exports
-	     (setq exports (funcall e-merge exports-exclusive-groups
-				    exports (split-string (cdr pair)))))
-	    (:tangle ;; take the latest -- always overwrite
-	     (setq tangle (or (list (cdr pair)) tangle)))
-	    (:noweb
-	     (setq noweb (funcall e-merge
-				  '(("yes" "no" "tangle" "no-export"
-				     "strip-export" "eval"))
-				  noweb
-				  (split-string (or (cdr pair) "")))))
-	    (:cache
-	     (setq cache (funcall e-merge '(("yes" "no")) cache
-				  (split-string (or (cdr pair) "")))))
-	    (:padline
-	     (setq padline (funcall e-merge '(("yes" "no")) padline
-				    (split-string (or (cdr pair) "")))))
-	    (:shebang ;; take the latest -- always overwrite
-	     (setq shebang (or (list (cdr pair)) shebang)))
-	    (:comments
-	     (setq comments (funcall e-merge '(("yes" "no")) comments
-				     (split-string (or (cdr pair) "")))))
-	    (t ;; replace: this covers e.g. :session
-	     (setq params (cons pair (assq-delete-all (car pair) params))))))
-	plist))
-     plists)
-    (setq vars (reverse vars))
-    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
-    (mapc
-     (lambda (hd)
-       (let ((key (intern (concat ":" (symbol-name hd))))
-	     (val (eval hd)))
-	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
-     '(results exports tangle noweb padline cache shebang comments))
-    params))
-
-(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
-  "Set to true to use regular expressions to expand noweb references.
-This results in much faster noweb reference expansion but does
-not properly allow code blocks to inherit the \":noweb-ref\"
-header argument from buffer or subtree wide properties.")
-
-(defun org-babel-noweb-p (params context)
-  "Check if PARAMS require expansion in CONTEXT.
-CONTEXT may be one of :tangle, :export or :eval."
-  (let* (intersect
-	 (intersect (lambda (as bs)
-		      (when as
-			(if (member (car as) bs)
-			    (car as)
-			  (funcall intersect (cdr as) bs))))))
-    (funcall intersect (case context
-			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
-			 (:eval   '("yes" "no-export" "strip-export" "eval"))
-			 (:export '("yes")))
-	     (split-string (or (cdr (assoc :noweb params)) "")))))
-
-(defun org-babel-expand-noweb-references (&optional info parent-buffer)
-  "Expand Noweb references in the body of the current source code block.
-
-For example the following reference would be replaced with the
-body of the source-code block named 'example-block'.
-
-<<example-block>>
-
-Note that any text preceding the <<foo>> construct on a line will
-be interposed between the lines of the replacement text.  So for
-example if <<foo>> is placed behind a comment, then the entire
-replacement text will also be commented.
-
-This function must be called from inside of the buffer containing
-the source-code block which holds BODY.
-
-In addition the following syntax can be used to insert the
-results of evaluating the source-code block named 'example-block'.
-
-<<example-block()>>
-
-Any optional arguments can be passed to example-block by placing
-the arguments inside the parenthesis following the convention
-defined by `org-babel-lob'.  For example
-
-<<example-block(a=9)>>
-
-would set the value of argument \"a\" equal to \"9\".  Note that
-these arguments are not evaluated in the current source-code
-block but are passed literally to the \"example-block\"."
-  (let* ((parent-buffer (or parent-buffer (current-buffer)))
-         (info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-	 (ob-nww-start org-babel-noweb-wrap-start)
-	 (ob-nww-end org-babel-noweb-wrap-end)
-	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
-	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
-			    ":noweb-ref[ \t]+" "\\)"))
-         (new-body "")
-	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
-	 (c-wrap (lambda (text)
-		   (with-temp-buffer
-		     (funcall (intern (concat lang "-mode")))
-		     (comment-region (point) (progn (insert text) (point)))
-		     (org-babel-trim (buffer-string)))))
-	 index source-name evaluate prefix blocks-in-buffer)
-    (with-temp-buffer
-      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
-      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
-      (insert body) (goto-char (point-min))
-      (setq index (point))
-      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
-	(save-match-data (setf source-name (match-string 1)))
-	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
-	(save-match-data
-	  (setq prefix
-		(buffer-substring (match-beginning 0)
-				  (save-excursion
-				    (beginning-of-line 1) (point)))))
-	;; add interval to new-body (removing noweb reference)
-	(goto-char (match-beginning 0))
-	(funcall nb-add (buffer-substring index (point)))
-	(goto-char (match-end 0))
-	(setq index (point))
-	(funcall nb-add
-		 (with-current-buffer parent-buffer
-		   (save-restriction
-		     (widen)
-		     (mapconcat ;; interpose PREFIX between every line
-		      #'identity
-		      (split-string
-		       (if evaluate
-			   (let ((raw (org-babel-ref-resolve source-name)))
-			     (if (stringp raw) raw (format "%S" raw)))
-			 (or
-			  ;; retrieve from the library of babel
-			  (nth 2 (assoc (intern source-name)
-					org-babel-library-of-babel))
-			  ;; return the contents of headlines literally
-			  (save-excursion
-			    (when (org-babel-ref-goto-headline-id source-name)
-			      (org-babel-ref-headline-body)))
-			  ;; find the expansion of reference in this buffer
-			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
-				expansion)
-			    (save-excursion
-			      (goto-char (point-min))
-			      (if org-babel-use-quick-and-dirty-noweb-expansion
-				  (while (re-search-forward rx nil t)
-				    (let* ((i (org-babel-get-src-block-info 'light))
-					   (body (org-babel-expand-noweb-references i))
-					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						    "\n"))
-					   (full (if comment
-						     ((lambda (cs)
-							(concat (funcall c-wrap (car cs)) "\n"
-								body "\n"
-								(funcall c-wrap (cadr cs))))
-						      (org-babel-tangle-comment-links i))
-						   body)))
-				      (setq expansion (cons sep (cons full expansion)))))
-				(org-babel-map-src-blocks nil
-				  (let ((i (org-babel-get-src-block-info 'light)))
-				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
-						     (nth 4 i))
-						 source-name)
-				      (let* ((body (org-babel-expand-noweb-references i))
-					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						      "\n"))
-					     (full (if comment
-						       ((lambda (cs)
-							  (concat (funcall c-wrap (car cs)) "\n"
-								  body "\n"
-								  (funcall c-wrap (cadr cs))))
-							(org-babel-tangle-comment-links i))
-						     body)))
-					(setq expansion
-					      (cons sep (cons full expansion)))))))))
-			    (and expansion
-				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
-			  ;; possibly raise an error if named block doesn't exist
-			  (if (member lang org-babel-noweb-error-langs)
-			      (error "%s" (concat
-					   (org-babel-noweb-wrap source-name)
-					   "could not be resolved (see "
-					   "`org-babel-noweb-error-langs')"))
-			    "")))
-		       "[\n\r]") (concat "\n" prefix))))))
-      (funcall nb-add (buffer-substring index (point-max))))
-    new-body))
-
-(defun org-babel-script-escape (str &optional force)
-  "Safely convert tables into elisp lists."
-  (let (in-single in-double out)
-    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
-     (if (or force
-	     (and (stringp str)
-		  (> (length str) 2)
-		  (or (and (string-equal "[" (substring str 0 1))
-			   (string-equal "]" (substring str -1)))
-		      (and (string-equal "{" (substring str 0 1))
-			   (string-equal "}" (substring str -1)))
-		      (and (string-equal "(" (substring str 0 1))
-			   (string-equal ")" (substring str -1))))))
-	 (org-babel-read
-	  (concat
-	   "'"
-	   (progn
-	     (mapc
-	      (lambda (ch)
-		(setq
-		 out
-		 (case ch
-		   (91 (if (or in-double in-single) ; [
-			   (cons 91 out)
-			 (cons 40 out)))
-		   (93 (if (or in-double in-single) ; ]
-			   (cons 93 out)
-			 (cons 41 out)))
-		   (123 (if (or in-double in-single) ; {
-			    (cons 123 out)
-			  (cons 40 out)))
-		   (125 (if (or in-double in-single) ; }
-			    (cons 125 out)
-			  (cons 41 out)))
-		   (44 (if (or in-double in-single) ; ,
-			   (cons 44 out) (cons 32 out)))
-		   (39 (if in-double	; '
-			   (cons 39 out)
-			 (setq in-single (not in-single)) (cons 34 out)))
-		   (34 (if in-single	; "
-			   (append (list 34 32) out)
-			 (setq in-double (not in-double)) (cons 34 out)))
-		   (t  (cons ch out)))))
-	      (string-to-list str))
-	     (apply #'string (reverse out)))))
-       str))))
-
-(defun org-babel-read (cell &optional inhibit-lisp-eval)
-  "Convert the string value of CELL to a number if appropriate.
-Otherwise if cell looks like lisp (meaning it starts with a
-\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
-return it unmodified as a string.  Optional argument NO-LISP-EVAL
-inhibits lisp evaluation for situations in which is it not
-appropriate."
-  (if (and (stringp cell) (not (equal cell "")))
-      (or (org-babel-number-p cell)
-          (if (and (not inhibit-lisp-eval)
-		   (member (substring cell 0 1) '("(" "'" "`" "[")))
-              (eval (read cell))
-            (if (string= (substring cell 0 1) "\"")
-		(read cell)
-	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
-    cell))
-
-(defun org-babel-number-p (string)
-  "If STRING represents a number return its value."
-  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
-           (= (length (substring string (match-beginning 0)
-				 (match-end 0)))
-	      (length string)))
-      (string-to-number string)))
-
-(defun org-babel-import-elisp-from-file (file-name &optional separator)
-  "Read the results located at FILE-NAME into an elisp table.
-If the table is trivial, then return it as a scalar."
-  (let (result)
-    (save-window-excursion
-      (with-temp-buffer
-	(condition-case err
-	    (progn
-	      (org-table-import file-name separator)
-	      (delete-file file-name)
-	      (setq result (mapcar (lambda (row)
-				     (mapcar #'org-babel-string-read row))
-				   (org-table-to-lisp))))
-	  (error (message "Error reading results: %s" err) nil)))
-      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
-	  (if (consp (car result))
-	      (if (null (cdr (car result)))
-		  (caar result)
-		result)
-	    (car result))
-	result))))
-
-(defun org-babel-string-read (cell)
-  "Strip nested \"s from around strings."
-  (org-babel-read (or (and (stringp cell)
-                           (string-match "\\\"\\(.+\\)\\\"" cell)
-                           (match-string 1 cell))
-                      cell) t))
-
-(defun org-babel-reverse-string (string)
-  "Return the reverse of STRING."
-  (apply 'string (reverse (string-to-list string))))
-
-(defun org-babel-chomp (string &optional regexp)
-  "Strip trailing spaces and carriage returns from STRING.
-Default regexp used is \"[ \f\t\n\r\v]\" but can be
-overwritten by specifying a regexp as a second argument."
-  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
-    (while (and (> (length string) 0)
-                (string-match regexp (substring string -1)))
-      (setq string (substring string 0 -1)))
-    string))
-
-(defun org-babel-trim (string &optional regexp)
-  "Strip leading and trailing spaces and carriage returns from STRING.
-Like `org-babel-chomp' only it runs on both the front and back
-of the string."
-  (org-babel-chomp (org-babel-reverse-string
-                    (org-babel-chomp (org-babel-reverse-string string) regexp))
-                   regexp))
-
-(defvar org-babel-org-babel-call-process-region-original nil)
-(defun org-babel-tramp-handle-call-process-region
-  (start end program &optional delete buffer display &rest args)
-  "Use Tramp to handle `call-process-region'.
-Fixes a bug in `tramp-handle-call-process-region'."
-  (if (and (featurep 'tramp) (file-remote-p default-directory))
-      (let ((tmpfile (tramp-compat-make-temp-file "")))
-	(write-region start end tmpfile)
-	(when delete (delete-region start end))
-	(unwind-protect
-	    ;;	(apply 'call-process program tmpfile buffer display args)
-            ;; bug in tramp
-	    (apply 'process-file program tmpfile buffer display args)
-	  (delete-file tmpfile)))
-    ;; org-babel-call-process-region-original is the original emacs
-    ;; definition.  It is in scope from the let binding in
-    ;; org-babel-execute-src-block
-    (apply org-babel-call-process-region-original
-           start end program delete buffer display args)))
-
-(defun org-babel-local-file-name (file)
-  "Return the local name component of FILE."
-  (if (file-remote-p file)
-      (let (localname)
-	(with-parsed-tramp-file-name file nil
-				     localname))
-    file))
-
-(defun org-babel-process-file-name (name &optional no-quote-p)
-  "Prepare NAME to be used in an external process.
-If NAME specifies a remote location, the remote portion of the
-name is removed, since in that case the process will be executing
-remotely.  The file name is then processed by `expand-file-name'.
-Unless second argument NO-QUOTE-P is non-nil, the file name is
-additionally processed by `shell-quote-argument'"
-  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
-   (expand-file-name (org-babel-local-file-name name))))
-
-(defvar org-babel-temporary-directory)
-(unless (or noninteractive (boundp 'org-babel-temporary-directory))
-  (defvar org-babel-temporary-directory
-    (or (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory)
-	     org-babel-temporary-directory)
-	(make-temp-file "babel-" t))
-    "Directory to hold temporary files created to execute code blocks.
-Used by `org-babel-temp-file'.  This directory will be removed on
-Emacs shutdown."))
-
-(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
-  "Call the code to parse raw string results according to RESULT-PARAMS."
-  (declare (indent 1))
-  `(unless (member "none" ,result-params)
-     (if (or (member "scalar" ,result-params)
-	     (member "verbatim" ,result-params)
-	     (member "html" ,result-params)
-	     (member "code" ,result-params)
-	     (member "pp" ,result-params)
-	     (and (member "output" ,result-params)
-		  (not (member "table" ,result-params))))
-	 ,scalar-form
-       ,@table-forms)))
-
-(defun org-babel-temp-file (prefix &optional suffix)
-  "Create a temporary file in the `org-babel-temporary-directory'.
-Passes PREFIX and SUFFIX directly to `make-temp-file' with the
-value of `temporary-file-directory' temporarily set to the value
-of `org-babel-temporary-directory'."
-  (if (file-remote-p default-directory)
-      (make-temp-file
-       (concat (file-remote-p default-directory)
-	       (expand-file-name
-		prefix temporary-file-directory)
-	       nil suffix))
-    (let ((temporary-file-directory
-	   (or (and (boundp 'org-babel-temporary-directory)
-		    (file-exists-p org-babel-temporary-directory)
-		    org-babel-temporary-directory)
-	       temporary-file-directory)))
-      (make-temp-file prefix nil suffix))))
-
-(defun org-babel-remove-temporary-directory ()
-  "Remove `org-babel-temporary-directory' on Emacs shutdown."
-  (when (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory))
-    ;; taken from `delete-directory' in files.el
-    (condition-case nil
-	(progn
-	  (mapc (lambda (file)
-		  ;; This test is equivalent to
-		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
-		  ;; but more efficient
-		  (if (eq t (car (file-attributes file)))
-		      (delete-directory file)
-		    (delete-file file)))
-		;; We do not want to delete "." and "..".
-		(directory-files org-babel-temporary-directory 'full
-				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
-	  (delete-directory org-babel-temporary-directory))
-      (error
-       (message "Failed to remove temporary Org-babel directory %s"
-		(if (boundp 'org-babel-temporary-directory)
-		    org-babel-temporary-directory
-		  "[directory not defined]"))))))
-
-(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
-
-(provide 'ob-core)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-core.el ends here
diff --git a/lisp/ob-eval.el b/lisp/ob-eval.el
deleted file mode 100644
index ddad067..0000000
--- a/lisp/ob-eval.el
+++ /dev/null
@@ -1,261 +0,0 @@
-;;; ob-eval.el --- org-babel functions for external code evaluation
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build existing Emacs support for executing external
-;; shell commands.
-
-;;; Code:
-(eval-when-compile (require 'cl))
-
-(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
-
-(defun org-babel-eval-error-notify (exit-code stderr)
-  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
-  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
-    (with-current-buffer buf
-      (goto-char (point-max))
-      (save-excursion (insert stderr)))
-    (display-buffer buf))
-  (message "Babel evaluation exited with code %S" exit-code))
-
-(defun org-babel-eval (cmd body)
-  "Run CMD on BODY.
-If CMD succeeds then return its results, otherwise display
-STDERR with `org-babel-eval-error-notify'."
-  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
-    (with-current-buffer err-buff (erase-buffer))
-    (with-temp-buffer
-      (insert body)
-      (setq exit-code
-	    (org-babel-shell-command-on-region
-	     (point-min) (point-max) cmd t 'replace err-buff))
-      (if (or (not (numberp exit-code)) (> exit-code 0))
-	  (progn
-	    (with-current-buffer err-buff
-	      (org-babel-eval-error-notify exit-code (buffer-string)))
-	    nil)
-	(buffer-string)))))
-
-(defun org-babel-eval-read-file (file)
-  "Return the contents of FILE as a string."
-  (with-temp-buffer (insert-file-contents file)
-		    (buffer-string)))
-
-(defun org-babel-shell-command-on-region (start end command
-						&optional output-buffer replace
-						error-buffer display-error-buffer)
-  "Execute COMMAND in an inferior shell with region as input.
-
-Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
-
-Normally display output (if any) in temp buffer `*Shell Command Output*';
-Prefix arg means replace the region with it.  Return the exit code of
-COMMAND.
-
-To specify a coding system for converting non-ASCII characters in
-the input and output to the shell command, use
-\\[universal-coding-system-argument] before this command.  By
-default, the input (from the current buffer) is encoded in the
-same coding system that will be used to save the file,
-`buffer-file-coding-system'.  If the output is going to replace
-the region, then it is decoded from that same coding system.
-
-The noninteractive arguments are START, END, COMMAND,
-OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
-Noninteractive callers can specify coding systems by binding
-`coding-system-for-read' and `coding-system-for-write'.
-
-If the command generates output, the output may be displayed
-in the echo area or in a buffer.
-If the output is short enough to display in the echo area
-\(determined by the variable `max-mini-window-height' if
-`resize-mini-windows' is non-nil), it is shown there.  Otherwise
-it is displayed in the buffer `*Shell Command Output*'.  The output
-is available in that buffer in both cases.
-
-If there is output and an error, a message about the error
-appears at the end of the output.
-
-If there is no output, or if output is inserted in the current buffer,
-then `*Shell Command Output*' is deleted.
-
-If the optional fourth argument OUTPUT-BUFFER is non-nil,
-that says to put the output in some other buffer.
-If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
-If OUTPUT-BUFFER is not a buffer and not nil,
-insert output in the current buffer.
-In either case, the output is inserted after point (leaving mark after it).
-
-If REPLACE, the optional fifth argument, is non-nil, that means insert
-the output in place of text from START to END, putting point and mark
-around it.
-
-If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
-or buffer name to which to direct the command's standard error output.
-If it is nil, error output is mingled with regular output.
-If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
-were any errors.  (This is always t, interactively.)
-In an interactive call, the variable `shell-command-default-error-buffer'
-specifies the value of ERROR-BUFFER."
-  (interactive (let (string)
-		 (unless (mark)
-		   (error "The mark is not set now, so there is no region"))
-		 ;; Do this before calling region-beginning
-		 ;; and region-end, in case subprocess output
-		 ;; relocates them while we are in the minibuffer.
-		 (setq string (read-shell-command "Shell command on region: "))
-		 ;; call-interactively recognizes region-beginning and
-		 ;; region-end specially, leaving them in the history.
-		 (list (region-beginning) (region-end)
-		       string
-		       current-prefix-arg
-		       current-prefix-arg
-		       shell-command-default-error-buffer
-		       t)))
-  (let ((error-file
-	 (if error-buffer
-	     (make-temp-file
-	      (expand-file-name "scor"
-                                (if (featurep 'xemacs)
-                                    (temp-directory)
-                                  temporary-file-directory)))
-	   nil))
-	exit-status)
-    (if (or replace
-	    (and output-buffer
-		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
-	;; Replace specified region with output from command.
-	(let ((swap (and replace (< start end))))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (goto-char start)
-	  (and replace (push-mark (point) 'nomsg))
-	  (setq exit-status
-		(call-process-region start end shell-file-name t
-				     (if error-file
-					 (list output-buffer error-file)
-				       t)
-				     nil shell-command-switch command))
-	  ;; It is rude to delete a buffer which the command is not using.
-	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
-	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
-	  ;; 	 (kill-buffer shell-buffer)))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (and replace swap (exchange-point-and-mark)))
-      ;; No prefix argument: put the output in a temp buffer,
-      ;; replacing its entire contents.
-      (let ((buffer (get-buffer-create
-		     (or output-buffer "*Shell Command Output*"))))
-	(unwind-protect
-	    (if (eq buffer (current-buffer))
-		;; If the input is the same buffer as the output,
-		;; delete everything but the specified region,
-		;; then replace that region with the output.
-		(progn (setq buffer-read-only nil)
-		       (delete-region (max start end) (point-max))
-		       (delete-region (point-min) (min start end))
-		       (setq exit-status
-			     (call-process-region (point-min) (point-max)
-						  shell-file-name t
-						  (if error-file
-						      (list t error-file)
-						    t)
-						  nil shell-command-switch
-						  command)))
-	      ;; Clear the output buffer, then run the command with
-	      ;; output there.
-	      (let ((directory default-directory))
-		(with-current-buffer buffer
-		  (setq buffer-read-only nil)
-		  (if (not output-buffer)
-		      (setq default-directory directory))
-		  (erase-buffer)))
-	      (setq exit-status
-		    (call-process-region start end shell-file-name nil
-					 (if error-file
-					     (list buffer error-file)
-					   buffer)
-					 nil shell-command-switch command)))
-	  ;; Report the output.
-	  (with-current-buffer buffer
-	    (setq mode-line-process
-		  (cond ((null exit-status)
-			 " - Error")
-			((stringp exit-status)
-			 (format " - Signal [%s]" exit-status))
-			((not (equal 0 exit-status))
-			 (format " - Exit [%d]" exit-status)))))
-	  (if (with-current-buffer buffer (> (point-max) (point-min)))
-	      ;; There's some output, display it
-	      (display-message-or-buffer buffer)
-	    ;; No output; error?
-	    (let ((output
-		   (if (and error-file
-			    (< 0 (nth 7 (file-attributes error-file))))
-		       "some error output"
-		     "no output")))
-	      (cond ((null exit-status)
-		     (message "(Shell command failed with error)"))
-		    ((equal 0 exit-status)
-		     (message "(Shell command succeeded with %s)"
-			      output))
-		    ((stringp exit-status)
-		     (message "(Shell command killed by signal %s)"
-			      exit-status))
-		    (t
-		     (message "(Shell command failed with code %d and %s)"
-			      exit-status output))))
-	    ;; Don't kill: there might be useful info in the undo-log.
-	    ;; (kill-buffer buffer)
-	    ))))
-
-    (when (and error-file (file-exists-p error-file))
-      (if (< 0 (nth 7 (file-attributes error-file)))
-	  (with-current-buffer (get-buffer-create error-buffer)
-	    (let ((pos-from-end (- (point-max) (point))))
-	      (or (bobp)
-		  (insert "\f\n"))
-	      ;; Do no formatting while reading error file,
-	      ;; because that can run a shell command, and we
-	      ;; don't want that to cause an infinite recursion.
-	      (format-insert-file error-file nil)
-	      ;; Put point after the inserted errors.
-	      (goto-char (- (point-max) pos-from-end)))
-	    (and display-error-buffer
-		 (display-buffer (current-buffer)))))
-      (delete-file error-file))
-    exit-status))
-
-(defun org-babel-eval-wipe-error-buffer ()
-  "Delete the contents of the Org code block error buffer.
-This buffer is named by `org-babel-error-buffer-name'."
-  (when (get-buffer org-babel-error-buffer-name)
-    (with-current-buffer org-babel-error-buffer-name
-      (delete-region (point-min) (point-max)))))
-
-(provide 'ob-eval)
-
-
-
-;;; ob-eval.el ends here
diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index e2be94d..03f2f5f 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -23,11 +23,10 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
-(defvar obe-marker nil)
 (defvar org-current-export-file)
 (defvar org-babel-lob-one-liner-regexp)
 (defvar org-babel-ref-split-regexp)
diff --git a/lisp/ob-keys.el b/lisp/ob-keys.el
deleted file mode 100644
index 283c2b5..0000000
--- a/lisp/ob-keys.el
+++ /dev/null
@@ -1,105 +0,0 @@
-;;; ob-keys.el --- key bindings for org-babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Add org-babel keybindings to the org-mode keymap for exposing
-;; org-babel functions.  These will all share a common prefix.  See
-;; the value of `org-babel-key-bindings' for a list of interactive
-;; functions and their associated keys.
-
-;;; Code:
-(require 'ob-core)
-
-(defvar org-babel-key-prefix "\C-c\C-v"
-  "The key prefix for Babel interactive key-bindings.
-See `org-babel-key-bindings' for the list of interactive babel
-functions which are assigned key bindings, and see
-`org-babel-map' for the actual babel keymap.")
-
-(defvar org-babel-map (make-sparse-keymap)
-  "The keymap for interactive Babel functions.")
-
-;;;###autoload
-(defun org-babel-describe-bindings ()
-  "Describe all keybindings behind `org-babel-key-prefix'."
-  (interactive)
-  (describe-bindings org-babel-key-prefix))
-
-(defvar org-babel-key-bindings
-  '(("p" . org-babel-previous-src-block)
-    ("\C-p" . org-babel-previous-src-block)
-    ("n" . org-babel-next-src-block)
-    ("\C-n" . org-babel-next-src-block)
-    ("e" . org-babel-execute-maybe)
-    ("\C-e" . org-babel-execute-maybe)
-    ("o" . org-babel-open-src-block-result)
-    ("\C-o" . org-babel-open-src-block-result)
-    ("\C-v" . org-babel-expand-src-block)
-    ("v" . org-babel-expand-src-block)
-    ("u" . org-babel-goto-src-block-head)
-    ("\C-u" . org-babel-goto-src-block-head)
-    ("g" . org-babel-goto-named-src-block)
-    ("r" . org-babel-goto-named-result)
-    ("\C-r" . org-babel-goto-named-result)
-    ("\C-b" . org-babel-execute-buffer)
-    ("b" . org-babel-execute-buffer)
-    ("\C-s" . org-babel-execute-subtree)
-    ("s" . org-babel-execute-subtree)
-    ("\C-d" . org-babel-demarcate-block)
-    ("d" . org-babel-demarcate-block)
-    ("\C-t" . org-babel-tangle)
-    ("t" . org-babel-tangle)
-    ("\C-f" . org-babel-tangle-file)
-    ("f" . org-babel-tangle-file)
-    ("\C-c" . org-babel-check-src-block)
-    ("c" . org-babel-check-src-block)
-    ("\C-j" . org-babel-insert-header-arg)
-    ("j" . org-babel-insert-header-arg)
-    ("\C-l" . org-babel-load-in-session)
-    ("l" . org-babel-load-in-session)
-    ("\C-i" . org-babel-lob-ingest)
-    ("i" . org-babel-lob-ingest)
-    ("\C-I" . org-babel-view-src-block-info)
-    ("I" . org-babel-view-src-block-info)
-    ("\C-z" . org-babel-switch-to-session)
-    ("z" . org-babel-switch-to-session-with-code)
-    ("\C-a" . org-babel-sha1-hash)
-    ("a" . org-babel-sha1-hash)
-    ("h" . org-babel-describe-bindings)
-    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("\C-\M-h" . org-babel-mark-block))
-  "Alist of key bindings and interactive Babel functions.
-This list associates interactive Babel functions
-with keys.  Each element of this list will add an entry to the
-`org-babel-map' using the letter key which is the `car' of the
-a-list placed behind the generic `org-babel-key-prefix'.")
-
-(provide 'ob-keys)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-keys.el ends here
diff --git a/lisp/ob-lob.el b/lisp/ob-lob.el
deleted file mode 100644
index 5c21db7..0000000
--- a/lisp/ob-lob.el
+++ /dev/null
@@ -1,149 +0,0 @@
-;;; ob-lob.el --- functions supporting the Library of Babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-core)
-(require 'ob-table)
-
-(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
-
-(defvar org-babel-library-of-babel nil
-  "Library of source-code blocks.
-This is an association list.  Populate the library by adding
-files to `org-babel-lob-files'.")
-
-(defcustom org-babel-lob-files '()
-  "Files used to populate the `org-babel-library-of-babel'.
-To add files to this list use the `org-babel-lob-ingest' command."
-  :group 'org-babel
-  :version "24.1"
-  :type 'list)
-
-(defvar org-babel-default-lob-header-args '((:exports . "results"))
-  "Default header arguments to use when exporting #+lob/call lines.")
-
-(defun org-babel-lob-ingest (&optional file)
-  "Add all named source-blocks defined in FILE to
-`org-babel-library-of-babel'."
-  (interactive "fFile: ")
-  (let ((lob-ingest-count 0))
-    (org-babel-map-src-blocks file
-      (let* ((info (org-babel-get-src-block-info 'light))
-	     (source-name (nth 4 info)))
-	(when source-name
-	  (setq source-name (intern source-name)
-		org-babel-library-of-babel
-		(cons (cons source-name info)
-		      (assq-delete-all source-name org-babel-library-of-babel))
-		lob-ingest-count (1+ lob-ingest-count)))))
-    (message "%d src block%s added to Library of Babel"
-	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
-    lob-ingest-count))
-
-(defconst org-babel-block-lob-one-liner-regexp
-  (concat
-   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
-  "Regexp to match non-inline calls to predefined source block functions.")
-
-(defconst org-babel-inline-lob-one-liner-regexp
-  (concat
-   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
-  "Regexp to match inline calls to predefined source block functions.")
-
-(defconst org-babel-lob-one-liner-regexp
-  (concat "\\(" org-babel-block-lob-one-liner-regexp
-	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
-  "Regexp to match calls to predefined source block functions.")
-
-;; functions for executing lob one-liners
-
-;;;###autoload
-(defun org-babel-lob-execute-maybe ()
-  "Execute a Library of Babel source block, if appropriate.
-Detect if this is context for a Library Of Babel source block and
-if so then run the appropriate source block from the Library."
-  (interactive)
-  (let ((info (org-babel-lob-get-info)))
-    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
-	(progn (org-babel-lob-execute info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-lob-get-info ()
-  "Return a Library of Babel function call as a string."
-  (let ((case-fold-search t)
-	(nonempty (lambda (a b)
-		    (let ((it (match-string a)))
-		      (if (= (length it) 0) (match-string b) it)))))
-    (save-excursion
-      (beginning-of-line 1)
-      (when (looking-at org-babel-lob-one-liner-regexp)
-	(append
-	 (mapcar #'org-no-properties
-		 (list
-		  (format "%s%s(%s)%s"
-			  (funcall nonempty 3 12)
-			  (if (not (= 0 (length (funcall nonempty 5 14))))
-			      (concat "[" (funcall nonempty 5 14) "]") "")
-			  (or (funcall nonempty 7 16) "")
-			  (or (funcall nonempty 8 19) ""))
-		  (funcall nonempty 9 18)))
-	 (list (length (if (= (length (match-string 12)) 0)
-			   (match-string 2) (match-string 11)))))))))
-
-(defun org-babel-lob-execute (info)
-  "Execute the lob call specified by INFO."
-  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
-	 (pre-params (org-babel-merge-params
-		      org-babel-default-header-args
-		      (org-babel-params-from-properties)
-		      (org-babel-parse-header-arguments
-		       (org-no-properties
-			(concat ":var results="
-				(mapconcat #'identity (butlast info) " "))))))
-	 (pre-info (funcall mkinfo pre-params))
-	 (cache? (and (cdr (assoc :cache pre-params))
-		      (string= "yes" (cdr (assoc :cache pre-params)))))
-	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
-	 (old-hash (when cache? (org-babel-current-result-hash))))
-    (if (and cache? (equal new-hash old-hash))
-	(save-excursion (goto-char (org-babel-where-is-src-block-result))
-			(forward-line 1)
-			(message "%S" (org-babel-read-result)))
-      (prog1 (org-babel-execute-src-block
-	      nil (funcall mkinfo (org-babel-process-params pre-params)))
-	;; update the hash
-	(when new-hash (org-babel-set-current-result-hash new-hash))))))
-
-(provide 'ob-lob)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-lob.el ends here
diff --git a/lisp/ob-ref.el b/lisp/ob-ref.el
deleted file mode 100644
index 1149111..0000000
--- a/lisp/ob-ref.el
+++ /dev/null
@@ -1,266 +0,0 @@
-;;; ob-ref.el --- org-babel functions for referencing external data
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Functions for referencing data from the header arguments of a
-;; org-babel block.  The syntax of such a reference should be
-
-;;   #+VAR: variable-name=file:resource-id
-
-;; - variable-name :: the name of the variable to which the value
-;;                    will be assigned
-
-;; - file :: path to the file containing the resource, or omitted if
-;;           resource is in the current file
-
-;; - resource-id :: the id or name of the resource
-
-;; So an example of a simple src block referencing table data in the
-;; same file would be
-
-;;  #+TBLNAME: sandbox
-;;  | 1 |         2 | 3 |
-;;  | 4 | org-babel | 6 |
-;;
-;;  #+begin_src emacs-lisp :var table=sandbox
-;;    (message table)
-;;  #+end_src
-
-;;; Code:
-(require 'ob-core)
-(eval-when-compile
-  (require 'cl))
-
-(declare-function org-remove-if-not "org" (predicate seq))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-count "org" (CL-ITEM CL-SEQ))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
-(declare-function org-id-find-id-file "org-id" (id))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-pop-to-buffer-same-window
-		  "org-compat" (&optional buffer-or-name norecord label))
-
-(defvar org-babel-ref-split-regexp
-  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
-
-(defvar org-babel-update-intermediate nil
-  "Update the in-buffer results of code blocks executed to resolve references.")
-
-(defun org-babel-ref-parse (assignment)
-  "Parse a variable ASSIGNMENT in a header argument.
-If the right hand side of the assignment has a literal value
-return that value, otherwise interpret as a reference to an
-external resource and find its value using
-`org-babel-ref-resolve'.  Return a list with two elements.  The
-first element of the list will be the name of the variable, and
-the second will be an emacs-lisp representation of the value of
-the variable."
-  (when (string-match org-babel-ref-split-regexp assignment)
-    (let ((var (match-string 1 assignment))
-	  (ref (match-string 2 assignment)))
-      (cons (intern var)
-	    (let ((out (org-babel-read ref)))
-	      (if (equal out ref)
-		  (if (string-match "^\".*\"$" ref)
-		      (read ref)
-		    (org-babel-ref-resolve ref))
-		out))))))
-
-(defun org-babel-ref-goto-headline-id (id)
-  (goto-char (point-min))
-  (let ((rx (regexp-quote id)))
-    (or (re-search-forward
-	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
-	(let* ((file (org-id-find-id-file id))
-	       (m (when file (org-id-find-id-in-file id file 'marker))))
-	  (when (and file m)
-	    (message "file:%S" file)
-	    (org-pop-to-buffer-same-window (marker-buffer m))
-	    (goto-char m)
-	    (move-marker m nil)
-	    (org-show-context)
-	    t)))))
-
-(defun org-babel-ref-headline-body ()
-  (save-restriction
-    (org-narrow-to-subtree)
-    (buffer-substring
-     (save-excursion (goto-char (point-min))
-		     (forward-line 1)
-		     (when (looking-at "[ \t]*:PROPERTIES:")
-		       (re-search-forward ":END:" nil)
-		       (forward-char))
-		     (point))
-     (point-max))))
-
-(defvar org-babel-library-of-babel)
-(defun org-babel-ref-resolve (ref)
-  "Resolve the reference REF and return its value."
-  (save-window-excursion
-    (save-excursion
-      (let ((case-fold-search t)
-	    type args new-refere new-header-args new-referent result
-	    lob-info split-file split-ref index index-row index-col id)
-	;; if ref is indexed grab the indices -- beware nested indices
-	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
-		   (let ((str (substring ref 0 (match-beginning 0))))
-		     (= (org-count ?( str) (org-count ?) str))))
-	  (setq index (match-string 1 ref))
-	  (setq ref (substring ref 0 (match-beginning 0))))
-	;; assign any arguments to pass to source block
-	(when (string-match
-	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
-	  (setq new-refere      (match-string 1 ref))
-	  (setq new-header-args (match-string 3 ref))
-	  (setq new-referent    (match-string 5 ref))
-	  (when (> (length new-refere) 0)
-	    (when (> (length new-referent) 0)
-	      (setq args (mapcar (lambda (ref) (cons :var ref))
-				 (org-babel-ref-split-args new-referent))))
-	    (when (> (length new-header-args) 0)
-	      (setq args (append (org-babel-parse-header-arguments
-				  new-header-args) args)))
-	    (setq ref new-refere)))
-	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
-	  (setq split-file (match-string 1 ref))
-	  (setq split-ref (match-string 2 ref))
-	  (find-file split-file) (setq ref split-ref))
-	(save-restriction
-	  (widen)
-	  (goto-char (point-min))
-	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
-		    (res-rx (org-babel-named-data-regexp-for-name ref)))
-		;; goto ref in the current buffer
-		(or
-		 ;; check for code blocks
-		 (re-search-forward src-rx nil t)
-		 ;; check for named data
-		 (re-search-forward res-rx nil t)
-		 ;; check for local or global headlines by id
-		 (setq id (org-babel-ref-goto-headline-id ref))
-		 ;; check the Library of Babel
-		 (setq lob-info (cdr (assoc (intern ref)
-					    org-babel-library-of-babel)))))
-	      (unless (or lob-info id) (goto-char (match-beginning 0)))
-	    ;; ;; TODO: allow searching for names in other buffers
-	    ;; (setq id-loc (org-id-find ref 'marker)
-	    ;;       buffer (marker-buffer id-loc)
-	    ;;       loc (marker-position id-loc))
-	    ;; (move-marker id-loc nil)
-	    (error "Reference '%s' not found in this buffer" ref))
-	  (cond
-	   (lob-info (setq type 'lob))
-	   (id (setq type 'id))
-	   ((and (looking-at org-babel-src-name-regexp)
-		 (save-excursion
-		   (forward-line 1)
-		   (or (looking-at org-babel-src-block-regexp)
-		       (looking-at org-babel-multi-line-header-regexp))))
-	    (setq type 'source-block))
-	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
-		(forward-line 1)
-		(beginning-of-line)
-		(if (or (= (point) (point-min)) (= (point) (point-max)))
-		    (error "Reference not found")))))
-	  (let ((params (append args '((:results . "silent")))))
-	    (setq result
-		  (case type
-		    (results-line (org-babel-read-result))
-		    (table        (org-babel-read-table))
-		    (list         (org-babel-read-list))
-		    (file         (org-babel-read-link))
-		    (source-block (org-babel-execute-src-block
-				   nil nil (if org-babel-update-intermediate
-					       nil params)))
-		    (lob          (org-babel-execute-src-block
-				   nil lob-info params))
-		    (id           (org-babel-ref-headline-body)))))
-	  (if (symbolp result)
-	      (format "%S" result)
-	    (if (and index (listp result))
-		(org-babel-ref-index-list index result)
-	      result)))))))
-
-(defun org-babel-ref-index-list (index lis)
-  "Return the subset of LIS indexed by INDEX.
-
-Indices are 0 based and negative indices count from the end of
-LIS, so 0 references the first element of LIS and -1 references
-the last.  If INDEX is separated by \",\"s then each \"portion\"
-is assumed to index into the next deepest nesting or dimension.
-
-A valid \"portion\" can consist of either an integer index, two
-integers separated by a \":\" in which case the entire range is
-returned, or an empty string or \"*\" both of which are
-interpreted to mean the entire range and as such are equivalent
-to \"0:-1\"."
-  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
-      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
-	     (lgth (length lis))
-	     (portion (match-string 1 index))
-	     (remainder (substring index (match-end 0)))
-	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
-	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
-	(funcall
-	 open
-	 (mapcar
-	  (lambda (sub-lis)
-	    (if (listp sub-lis)
-		(org-babel-ref-index-list remainder sub-lis)
-	      sub-lis))
-	  (if (or (= 0 (length portion)) (string-match ind-re portion))
-	      (mapcar
-	       (lambda (n) (nth n lis))
-	       (apply 'org-number-sequence
-		      (if (and (> (length portion) 0) (match-string 2 portion))
-			  (list
-			   (funcall wrap (string-to-number (match-string 2 portion)))
-			   (funcall wrap (string-to-number (match-string 3 portion))))
-			(list (funcall wrap 0) (funcall wrap -1)))))
-	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
-    lis))
-
-(defun org-babel-ref-split-args (arg-string)
-  "Split ARG-STRING into top-level arguments of balanced parenthesis."
-  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
-
-(defvar org-bracket-link-regexp)
-(defun org-babel-ref-at-ref-p ()
-  "Return the type of reference located at point.
-Return nil if none of the supported reference types are found.
-Supported reference types are tables and source blocks."
-  (cond ((org-at-table-p) 'table)
-	((org-at-item-p) 'list)
-        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
-        ((looking-at org-bracket-link-regexp) 'file)
-        ((looking-at org-babel-result-regexp) 'results-line)))
-
-(provide 'ob-ref)
-
-
-
-;;; ob-ref.el ends here
diff --git a/lisp/ob-table.el b/lisp/ob-table.el
index b7cd106..242ddf0 100644
--- a/lisp/ob-table.el
+++ b/lisp/ob-table.el
@@ -50,7 +50,7 @@
 ;; #+TBLFM: $2='(sbe 'fibbd (n $1))
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 
 (defun org-babel-table-truncate-at-newline (string)
   "Replace newline character with ellipses.
diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el
deleted file mode 100644
index 622a0a1..0000000
--- a/lisp/ob-tangle.el
+++ /dev/null
@@ -1,528 +0,0 @@
-;;; ob-tangle.el --- extract source code from org-mode files
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Extract the code from source blocks out into raw source-code files.
-
-;;; Code:
-(require 'org-src)
-(eval-when-compile
-  (require 'cl))
-
-(declare-function org-link-escape "org" (text &optional table))
-(declare-function org-heading-components "org" ())
-(declare-function org-back-to-heading "org" (invisible-ok))
-(declare-function org-fill-template "org" (template alist))
-(declare-function org-babel-update-block-body "org" (new-body))
-(declare-function make-directory "files" (dir &optional parents))
-
-(defcustom org-babel-tangle-lang-exts
-  '(("emacs-lisp" . "el"))
-  "Alist mapping languages to their file extensions.
-The key is the language name, the value is the string that should
-be inserted as the extension commonly used to identify files
-written in this language.  If no entry is found in this list,
-then the name of the language is used."
-  :group 'org-babel-tangle
-  :version "24.1"
-  :type '(repeat
-	  (cons
-	   (string "Language name")
-	   (string "File Extension"))))
-
-(defcustom org-babel-post-tangle-hook nil
-  "Hook run in code files tangled by `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-pre-tangle-hook '(save-buffer)
-  "Hook run at the beginning of `org-babel-tangle'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-body-hook nil
-  "Hook run over the contents of each code block body."
-  :group 'org-babel
-  :version "24.1"
-  :type 'hook)
-
-(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
-  "Format of inserted comments in tangled code files.
-The following format strings can be used to insert special
-information into the output using `org-fill-template'.
-%start-line --- the line number at the start of the code block
-%file --------- the file from which the code block was tangled
-%link --------- Org-mode style link to the code block
-%source-name -- name of the code block
-
-Whether or not comments are inserted during tangling is
-controlled by the :comments header argument."
-  :group 'org-babel
-  :version "24.1"
-  :type 'string)
-
-(defcustom org-babel-process-comment-text #'org-babel-trim
-  "Function called to process raw Org-mode text collected to be
-inserted as comments in tangled source-code files.  The function
-should take a single string argument and return a string
-result.  The default value is `org-babel-trim'."
-  :group 'org-babel
-  :version "24.1"
-  :type 'function)
-
-(defun org-babel-find-file-noselect-refresh (file)
-  "Find file ensuring that the latest changes on disk are
-represented in the file."
-  (find-file-noselect file)
-  (with-current-buffer (get-file-buffer file)
-    (revert-buffer t t t)))
-
-(defmacro org-babel-with-temp-filebuffer (file &rest body)
-  "Open FILE into a temporary buffer execute BODY there like
-`progn', then kill the FILE buffer returning the result of
-evaluating BODY."
-  (declare (indent 1))
-  (let ((temp-path (make-symbol "temp-path"))
-	(temp-result (make-symbol "temp-result"))
-	(temp-file (make-symbol "temp-file"))
-	(visited-p (make-symbol "visited-p")))
-    `(let* ((,temp-path ,file)
-	    (,visited-p (get-file-buffer ,temp-path))
-	    ,temp-result ,temp-file)
-       (org-babel-find-file-noselect-refresh ,temp-path)
-       (setf ,temp-file (get-file-buffer ,temp-path))
-       (with-current-buffer ,temp-file
-	 (setf ,temp-result (progn ,@body)))
-       (unless ,visited-p (kill-buffer ,temp-file))
-       ,temp-result)))
-(def-edebug-spec org-babel-with-temp-filebuffer (form body))
-
-;;;###autoload
-(defun org-babel-load-file (file &optional compile)
-  "Load Emacs Lisp source code blocks in the Org-mode FILE.
-This function exports the source code using `org-babel-tangle'
-and then loads the resulting file using `load-file'.  With prefix
-arg (noninteractively: 2nd arg) COMPILE the tangled Emacs Lisp
-file to byte-code before it is loaded."
-  (interactive "fFile to load: \nP")
-  (let* ((age (lambda (file)
-		(float-time
-		 (time-subtract (current-time)
-				(nth 5 (or (file-attributes (file-truename file))
-					   (file-attributes file)))))))
-	 (base-name (file-name-sans-extension file))
-	 (exported-file (concat base-name ".el")))
-    ;; tangle if the org-mode file is newer than the elisp file
-    (unless (and (file-exists-p exported-file)
-		 (> (funcall age file) (funcall age exported-file)))
-      (org-babel-tangle-file file exported-file "emacs-lisp"))
-    (message "%s %s"
-	     (if compile
-		 (progn (byte-compile-file exported-file 'load)
-			"Compiled and loaded")
-	       (progn (load-file exported-file) "Loaded"))
-	     exported-file)))
-
-;;;###autoload
-(defun org-babel-tangle-file (file &optional target-file lang)
-  "Extract the bodies of source code blocks in FILE.
-Source code blocks are extracted with `org-babel-tangle'.
-Optional argument TARGET-FILE can be used to specify a default
-export file for all source blocks.  Optional argument LANG can be
-used to limit the exported source code blocks by language."
-  (interactive "fFile to tangle: \nP")
-  (let ((visited-p (get-file-buffer (expand-file-name file)))
-	to-be-removed)
-    (save-window-excursion
-      (find-file file)
-      (setq to-be-removed (current-buffer))
-      (org-babel-tangle nil target-file lang))
-    (unless visited-p
-      (kill-buffer to-be-removed))))
-
-(defun org-babel-tangle-publish (_ filename pub-dir)
-  "Tangle FILENAME and place the results in PUB-DIR."
-  (mapc (lambda (el) (copy-file el pub-dir t)) (org-babel-tangle-file filename)))
-
-;;;###autoload
-(defun org-babel-tangle (&optional only-this-block target-file lang)
-  "Write code blocks to source-specific files.
-Extract the bodies of all source code blocks from the current
-file into their own source-specific files.  Optional argument
-TARGET-FILE can be used to specify a default export file for all
-source blocks.  Optional argument LANG can be used to limit the
-exported source code blocks by language."
-  (interactive "P")
-  (run-hooks 'org-babel-pre-tangle-hook)
-  ;; possibly restrict the buffer to the current code block
-  (save-restriction
-    (when only-this-block
-      (unless (org-babel-where-is-src-block-head)
-	(error "Point is not currently inside of a code block"))
-      (save-match-data
-	(unless (or (cdr (assoc :tangle (nth 2 (org-babel-get-src-block-info))))
-		    target-file)
-	  (setq target-file
-		(read-from-minibuffer "Tangle to: " (buffer-file-name)))))
-      (narrow-to-region (match-beginning 0) (match-end 0)))
-    (save-excursion
-      (let ((block-counter 0)
-	    (org-babel-default-header-args
-	     (if target-file
-		 (org-babel-merge-params org-babel-default-header-args
-					 (list (cons :tangle target-file)))
-	       org-babel-default-header-args))
-	    path-collector)
-	(mapc ;; map over all languages
-	 (lambda (by-lang)
-	   (let* ((lang (car by-lang))
-		  (specs (cdr by-lang))
-		  (ext (or (cdr (assoc lang org-babel-tangle-lang-exts)) lang))
-		  (lang-f (intern
-			   (concat
-			    (or (and (cdr (assoc lang org-src-lang-modes))
-				     (symbol-name
-				      (cdr (assoc lang org-src-lang-modes))))
-				lang)
-			    "-mode")))
-		  she-banged)
-	     (mapc
-	      (lambda (spec)
-		(let ((get-spec (lambda (name) (cdr (assoc name (nth 4 spec))))))
-		  (let* ((tangle (funcall get-spec :tangle))
-			 (she-bang ((lambda (sheb) (when (> (length sheb) 0) sheb))
-				    (funcall get-spec :shebang)))
-			 (base-name (cond
-				     ((string= "yes" tangle)
-				      (file-name-sans-extension
-				       (buffer-file-name)))
-				     ((string= "no" tangle) nil)
-				     ((> (length tangle) 0) tangle)))
-			 (file-name (when base-name
-				      ;; decide if we want to add ext to base-name
-				      (if (and ext (string= "yes" tangle))
-					  (concat base-name "." ext) base-name))))
-		    (when file-name
-		      ;; possibly create the parent directories for file
-		      (when ((lambda (m) (and m (not (string= m "no"))))
-			     (funcall get-spec :mkdirp))
-			(make-directory (file-name-directory file-name) 'parents))
-		      ;; delete any old versions of file
-		      (when (and (file-exists-p file-name)
-				 (not (member file-name path-collector)))
-			(delete-file file-name))
-		      ;; drop source-block to file
-		      (with-temp-buffer
-			(when (fboundp lang-f) (ignore-errors (funcall lang-f)))
-			(when (and she-bang (not (member file-name she-banged)))
-			  (insert (concat she-bang "\n"))
-			  (setq she-banged (cons file-name she-banged)))
-			(org-babel-spec-to-string spec)
-			;; We avoid append-to-file as it does not work with tramp.
-			(let ((content (buffer-string)))
-			  (with-temp-buffer
-			    (if (file-exists-p file-name)
-				(insert-file-contents file-name))
-			    (goto-char (point-max))
-			    (insert content)
-			    (write-region nil nil file-name))))
-		      (set-file-modes
-		       file-name
-		       ;; never writable (don't accidentally edit tangled files)
-		       (if she-bang
-			   #o555 ;; files with she-bangs should be executable
-			 #o444)) ;; those without should not
-		      ;; update counter
-		      (setq block-counter (+ 1 block-counter))
-		      (add-to-list 'path-collector file-name)))))
-	      specs)))
-	 (org-babel-tangle-collect-blocks lang))
-	(message "Tangled %d code block%s from %s" block-counter
-		 (if (= block-counter 1) "" "s")
-		 (file-name-nondirectory
-		  (buffer-file-name (or (buffer-base-buffer) (current-buffer)))))
-	;; run `org-babel-post-tangle-hook' in all tangled files
-	(when org-babel-post-tangle-hook
-	  (mapc
-	   (lambda (file)
-	     (org-babel-with-temp-filebuffer file
-	       (run-hooks 'org-babel-post-tangle-hook)))
-	   path-collector))
-	path-collector))))
-
-(defun org-babel-tangle-clean ()
-  "Remove comments inserted by `org-babel-tangle'.
-Call this function inside of a source-code file generated by
-`org-babel-tangle' to remove all comments inserted automatically
-by `org-babel-tangle'.  Warning, this comment removes any lines
-containing constructs which resemble org-mode file links or noweb
-references."
-  (interactive)
-  (goto-char (point-min))
-  (while (or (re-search-forward "\\[\\[file:.*\\]\\[.*\\]\\]" nil t)
-             (re-search-forward (org-babel-noweb-wrap) nil t))
-    (delete-region (save-excursion (beginning-of-line 1) (point))
-                   (save-excursion (end-of-line 1) (forward-char 1) (point)))))
-
-(defvar org-stored-links)
-(defvar org-bracket-link-regexp)
-(defun org-babel-spec-to-string (spec)
-  "Insert SPEC into the current file.
-Insert the source-code specified by SPEC into the current
-source code file.  This function uses `comment-region' which
-assumes that the appropriate major-mode is set.  SPEC has the
-form
-
-  (start-line file link source-name params body comment)"
-  (let* ((start-line (nth 0 spec))
-	 (file (nth 1 spec))
-	 (link (nth 2 spec))
-	 (source-name (nth 3 spec))
-	 (body (nth 5 spec))
-	 (comment (nth 6 spec))
-	 (comments (cdr (assoc :comments (nth 4 spec))))
-	 (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec))))))
-	 (link-p (or (string= comments "both") (string= comments "link")
-		     (string= comments "yes") (string= comments "noweb")))
-	 (link-data (mapcar (lambda (el)
-			      (cons (symbol-name el)
-				    ((lambda (le)
-				       (if (stringp le) le (format "%S" le)))
-				     (eval el))))
-			    '(start-line file link source-name)))
-	 (insert-comment (lambda (text)
-			   (when (and comments (not (string= comments "no"))
-				      (> (length text) 0))
-			     (when padline (insert "\n"))
-			     (comment-region (point) (progn (insert text) (point)))
-			     (end-of-line nil) (insert "\n")))))
-    (when comment (funcall insert-comment comment))
-    (when link-p
-      (funcall
-       insert-comment
-       (org-fill-template org-babel-tangle-comment-format-beg link-data)))
-    (when padline (insert "\n"))
-    (insert
-     (format
-      "%s\n"
-      (replace-regexp-in-string
-       "^," ""
-       (org-babel-trim body (if org-src-preserve-indentation "[\f\n\r\v]")))))
-    (when link-p
-      (funcall
-       insert-comment
-       (org-fill-template org-babel-tangle-comment-format-end link-data)))))
-
-(defun org-babel-tangle-collect-blocks (&optional language)
-  "Collect source blocks in the current Org-mode file.
-Return an association list of source-code block specifications of
-the form used by `org-babel-spec-to-string' grouped by language.
-Optional argument LANG can be used to limit the collected source
-code blocks by language."
-  (let ((block-counter 1) (current-heading "") blocks)
-    (org-babel-map-src-blocks (buffer-file-name)
-      ((lambda (new-heading)
-	 (if (not (string= new-heading current-heading))
-	     (progn
-	       (setq block-counter 1)
-	       (setq current-heading new-heading))
-	   (setq block-counter (+ 1 block-counter))))
-       (replace-regexp-in-string "[ \t]" "-"
-				 (condition-case nil
-				     (or (nth 4 (org-heading-components))
-					 "(dummy for heading without text)")
-				   (error (buffer-file-name)))))
-      (let* ((start-line (save-restriction (widen)
-					   (+ 1 (line-number-at-pos (point)))))
-	     (file (buffer-file-name))
-	     (info (org-babel-get-src-block-info 'light))
-	     (src-lang (nth 0 info)))
-        (unless (string= (cdr (assoc :tangle (nth 2 info))) "no")
-          (unless (and language (not (string= language src-lang)))
-	    (let* ((info (org-babel-get-src-block-info))
-		   (params (nth 2 info))
-		   (link ((lambda (link)
-			    (and (string-match org-bracket-link-regexp link)
-				 (match-string 1 link)))
-			  (org-no-properties
-			   (org-store-link nil))))
-		   (source-name
-		    (intern (or (nth 4 info)
-				(format "%s:%d"
-					current-heading block-counter))))
-		   (expand-cmd
-		    (intern (concat "org-babel-expand-body:" src-lang)))
-		   (assignments-cmd
-		    (intern (concat "org-babel-variable-assignments:" src-lang)))
-		   (body
-		    ((lambda (body) ;; run the tangle-body-hook
-		       (with-temp-buffer
-			 (insert body)
-			 (run-hooks 'org-babel-tangle-body-hook)
-			 (buffer-string)))
-		     ((lambda (body) ;; expand the body in language specific manner
-			(if (assoc :no-expand params)
-			    body
-			  (if (fboundp expand-cmd)
-			      (funcall expand-cmd body params)
-			    (org-babel-expand-body:generic
-			     body params
-			     (and (fboundp assignments-cmd)
-				  (funcall assignments-cmd params))))))
-		      (if (org-babel-noweb-p params :tangle)
-			  (org-babel-expand-noweb-references info)
-			(nth 1 info)))))
-		   (comment
-		    (when (or (string= "both" (cdr (assoc :comments params)))
-			      (string= "org" (cdr (assoc :comments params))))
-		      ;; from the previous heading or code-block end
-		      (funcall
-		       org-babel-process-comment-text
-		       (buffer-substring
-			(max (condition-case nil
-				 (save-excursion
-				   (org-back-to-heading t)  ; sets match data
-				   (match-end 0))
-			       (error (point-min)))
-			     (save-excursion
-			       (if (re-search-backward
-				    org-babel-src-block-regexp nil t)
-				   (match-end 0)
-				 (point-min))))
-			(point)))))
-		   by-lang)
-	      ;; add the spec for this block to blocks under it's language
-	      (setq by-lang (cdr (assoc src-lang blocks)))
-	      (setq blocks (delq (assoc src-lang blocks) blocks))
-	      (setq blocks (cons
-			    (cons src-lang
-				  (cons (list start-line file link
-					      source-name params body comment)
-					by-lang)) blocks)))))))
-    ;; ensure blocks in the correct order
-    (setq blocks
-          (mapcar
-	   (lambda (by-lang) (cons (car by-lang) (reverse (cdr by-lang))))
-	   blocks))
-    blocks))
-
-(defun org-babel-tangle-comment-links ( &optional info)
-  "Return a list of begin and end link comments for the code block at point."
-  (let* ((start-line (org-babel-where-is-src-block-head))
-	 (file (buffer-file-name))
-	 (link (org-link-escape (progn (call-interactively 'org-store-link)
-				       (org-no-properties
-					(car (pop org-stored-links))))))
-	 (source-name (nth 4 (or info (org-babel-get-src-block-info 'light))))
-	 (link-data (mapcar (lambda (el)
-			      (cons (symbol-name el)
-				    ((lambda (le)
-				       (if (stringp le) le (format "%S" le)))
-				     (eval el))))
-			    '(start-line file link source-name))))
-    (list (org-fill-template org-babel-tangle-comment-format-beg link-data)
-	  (org-fill-template org-babel-tangle-comment-format-end link-data))))
-
-;; de-tangling functions
-(defvar org-bracket-link-analytic-regexp)
-(defun org-babel-detangle (&optional source-code-file)
-  "Propagate changes in source file back original to Org-mode file.
-This requires that code blocks were tangled with link comments
-which enable the original code blocks to be found."
-  (interactive)
-  (save-excursion
-    (when source-code-file (find-file source-code-file))
-    (goto-char (point-min))
-    (let ((counter 0) new-body end)
-      (while (re-search-forward org-bracket-link-analytic-regexp nil t)
-        (when (re-search-forward
-	       (concat " " (regexp-quote (match-string 5)) " ends here"))
-          (setq end (match-end 0))
-          (forward-line -1)
-          (save-excursion
-	    (when (setq new-body (org-babel-tangle-jump-to-org))
-	      (org-babel-update-block-body new-body)))
-          (setq counter (+ 1 counter)))
-        (goto-char end))
-      (prog1 counter (message "Detangled %d code blocks" counter)))))
-
-(defun org-babel-tangle-jump-to-org ()
-  "Jump from a tangled code file to the related Org-mode file."
-  (interactive)
-  (let ((mid (point))
-	start end done
-        target-buffer target-char link path block-name body)
-    (save-window-excursion
-      (save-excursion
-	(while (and (re-search-backward org-bracket-link-analytic-regexp nil t)
-		    (not ; ever wider searches until matching block comments
-		     (and (setq start (point-at-eol))
-			  (setq link (match-string 0))
-			  (setq path (match-string 3))
-			  (setq block-name (match-string 5))
-			  (save-excursion
-			    (save-match-data
-			      (re-search-forward
-			       (concat " " (regexp-quote block-name)
-				       " ends here") nil t)
-			      (setq end (point-at-bol))))))))
-	(unless (and start (< start mid) (< mid end))
-	  (error "Not in tangled code"))
-        (setq body (org-babel-trim (buffer-substring start end))))
-      (when (string-match "::" path)
-        (setq path (substring path 0 (match-beginning 0))))
-      (find-file path) (setq target-buffer (current-buffer))
-      (goto-char start) (org-open-link-from-string link)
-      (if (string-match "[^ \t\n\r]:\\([[:digit:]]+\\)" block-name)
-          (org-babel-next-src-block
-           (string-to-number (match-string 1 block-name)))
-        (org-babel-goto-named-src-block block-name))
-      (setq target-char (point)))
-    (pop-to-buffer target-buffer)
-    (prog1 body (goto-char target-char))))
-
-(provide 'ob-tangle)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-tangle.el ends here
diff --git a/lisp/ob.el b/lisp/ob.el
index 3010503..a61aceb 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -3,6 +3,7 @@
 ;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
 
 ;; Authors: Eric Schulte
+;;	Dan Davison
 ;; Keywords: literate programming, reproducible research
 ;; Homepage: http://orgmode.org
 
@@ -22,15 +23,3828 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-eval)
-(require 'ob-core)
-(require 'ob-comint)
-(require 'ob-exp)
-(require 'ob-keys)
-(require 'ob-table)
-(require 'ob-lob)
-(require 'ob-ref)
-(require 'ob-tangle)
+(eval-when-compile
+  (require 'cl))
+
+(require 'org-macs)
+(require 'org-compat)
+(require 'comint)
+
+;;; ob-eval
+(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
+
+(defun org-babel-eval-error-notify (exit-code stderr)
+  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
+  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
+    (with-current-buffer buf
+      (goto-char (point-max))
+      (save-excursion (insert stderr)))
+    (display-buffer buf))
+  (message "Babel evaluation exited with code %S" exit-code))
+
+(defun org-babel-eval (cmd body)
+  "Run CMD on BODY.
+If CMD succeeds then return its results, otherwise display
+STDERR with `org-babel-eval-error-notify'."
+  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
+    (with-current-buffer err-buff (erase-buffer))
+    (with-temp-buffer
+      (insert body)
+      (setq exit-code
+	    (org-babel-shell-command-on-region
+	     (point-min) (point-max) cmd t 'replace err-buff))
+      (if (or (not (numberp exit-code)) (> exit-code 0))
+	  (progn
+	    (with-current-buffer err-buff
+	      (org-babel-eval-error-notify exit-code (buffer-string)))
+	    nil)
+	(buffer-string)))))
+
+(defun org-babel-eval-read-file (file)
+  "Return the contents of FILE as a string."
+  (with-temp-buffer (insert-file-contents file)
+		    (buffer-string)))
+
+(defun org-babel-shell-command-on-region (start end command
+						&optional output-buffer replace
+						error-buffer display-error-buffer)
+  "Execute COMMAND in an inferior shell with region as input.
+
+Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
+
+Normally display output (if any) in temp buffer `*Shell Command Output*';
+Prefix arg means replace the region with it.  Return the exit code of
+COMMAND.
+
+To specify a coding system for converting non-ASCII characters in
+the input and output to the shell command, use
+\\[universal-coding-system-argument] before this command.  By
+default, the input (from the current buffer) is encoded in the
+same coding system that will be used to save the file,
+`buffer-file-coding-system'.  If the output is going to replace
+the region, then it is decoded from that same coding system.
+
+The noninteractive arguments are START, END, COMMAND,
+OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
+Noninteractive callers can specify coding systems by binding
+`coding-system-for-read' and `coding-system-for-write'.
+
+If the command generates output, the output may be displayed
+in the echo area or in a buffer.
+If the output is short enough to display in the echo area
+\(determined by the variable `max-mini-window-height' if
+`resize-mini-windows' is non-nil), it is shown there.  Otherwise
+it is displayed in the buffer `*Shell Command Output*'.  The output
+is available in that buffer in both cases.
+
+If there is output and an error, a message about the error
+appears at the end of the output.
+
+If there is no output, or if output is inserted in the current buffer,
+then `*Shell Command Output*' is deleted.
+
+If the optional fourth argument OUTPUT-BUFFER is non-nil,
+that says to put the output in some other buffer.
+If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
+If OUTPUT-BUFFER is not a buffer and not nil,
+insert output in the current buffer.
+In either case, the output is inserted after point (leaving mark after it).
+
+If REPLACE, the optional fifth argument, is non-nil, that means insert
+the output in place of text from START to END, putting point and mark
+around it.
+
+If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
+or buffer name to which to direct the command's standard error output.
+If it is nil, error output is mingled with regular output.
+If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
+were any errors.  (This is always t, interactively.)
+In an interactive call, the variable `shell-command-default-error-buffer'
+specifies the value of ERROR-BUFFER."
+  (interactive (let (string)
+		 (unless (mark)
+		   (error "The mark is not set now, so there is no region"))
+		 ;; Do this before calling region-beginning
+		 ;; and region-end, in case subprocess output
+		 ;; relocates them while we are in the minibuffer.
+		 (setq string (read-shell-command "Shell command on region: "))
+		 ;; call-interactively recognizes region-beginning and
+		 ;; region-end specially, leaving them in the history.
+		 (list (region-beginning) (region-end)
+		       string
+		       current-prefix-arg
+		       current-prefix-arg
+		       shell-command-default-error-buffer
+		       t)))
+  (let ((error-file
+	 (if error-buffer
+	     (make-temp-file
+	      (expand-file-name "scor"
+                                (if (featurep 'xemacs)
+                                    (temp-directory)
+                                  temporary-file-directory)))
+	   nil))
+	exit-status)
+    (if (or replace
+	    (and output-buffer
+		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
+	;; Replace specified region with output from command.
+	(let ((swap (and replace (< start end))))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (goto-char start)
+	  (and replace (push-mark (point) 'nomsg))
+	  (setq exit-status
+		(call-process-region start end shell-file-name t
+				     (if error-file
+					 (list output-buffer error-file)
+				       t)
+				     nil shell-command-switch command))
+	  ;; It is rude to delete a buffer which the command is not using.
+	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
+	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
+	  ;; 	 (kill-buffer shell-buffer)))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (and replace swap (exchange-point-and-mark)))
+      ;; No prefix argument: put the output in a temp buffer,
+      ;; replacing its entire contents.
+      (let ((buffer (get-buffer-create
+		     (or output-buffer "*Shell Command Output*"))))
+	(unwind-protect
+	    (if (eq buffer (current-buffer))
+		;; If the input is the same buffer as the output,
+		;; delete everything but the specified region,
+		;; then replace that region with the output.
+		(progn (setq buffer-read-only nil)
+		       (delete-region (max start end) (point-max))
+		       (delete-region (point-min) (min start end))
+		       (setq exit-status
+			     (call-process-region (point-min) (point-max)
+						  shell-file-name t
+						  (if error-file
+						      (list t error-file)
+						    t)
+						  nil shell-command-switch
+						  command)))
+	      ;; Clear the output buffer, then run the command with
+	      ;; output there.
+	      (let ((directory default-directory))
+		(with-current-buffer buffer
+		  (setq buffer-read-only nil)
+		  (if (not output-buffer)
+		      (setq default-directory directory))
+		  (erase-buffer)))
+	      (setq exit-status
+		    (call-process-region start end shell-file-name nil
+					 (if error-file
+					     (list buffer error-file)
+					   buffer)
+					 nil shell-command-switch command)))
+	  ;; Report the output.
+	  (with-current-buffer buffer
+	    (setq mode-line-process
+		  (cond ((null exit-status)
+			 " - Error")
+			((stringp exit-status)
+			 (format " - Signal [%s]" exit-status))
+			((not (equal 0 exit-status))
+			 (format " - Exit [%d]" exit-status)))))
+	  (if (with-current-buffer buffer (> (point-max) (point-min)))
+	      ;; There's some output, display it
+	      (display-message-or-buffer buffer)
+	    ;; No output; error?
+	    (let ((output
+		   (if (and error-file
+			    (< 0 (nth 7 (file-attributes error-file))))
+		       "some error output"
+		     "no output")))
+	      (cond ((null exit-status)
+		     (message "(Shell command failed with error)"))
+		    ((equal 0 exit-status)
+		     (message "(Shell command succeeded with %s)"
+			      output))
+		    ((stringp exit-status)
+		     (message "(Shell command killed by signal %s)"
+			      exit-status))
+		    (t
+		     (message "(Shell command failed with code %d and %s)"
+			      exit-status output))))
+	    ;; Don't kill: there might be useful info in the undo-log.
+	    ;; (kill-buffer buffer)
+	    ))))
+
+    (when (and error-file (file-exists-p error-file))
+      (if (< 0 (nth 7 (file-attributes error-file)))
+	  (with-current-buffer (get-buffer-create error-buffer)
+	    (let ((pos-from-end (- (point-max) (point))))
+	      (or (bobp)
+		  (insert "\f\n"))
+	      ;; Do no formatting while reading error file,
+	      ;; because that can run a shell command, and we
+	      ;; don't want that to cause an infinite recursion.
+	      (format-insert-file error-file nil)
+	      ;; Put point after the inserted errors.
+	      (goto-char (- (point-max) pos-from-end)))
+	    (and display-error-buffer
+		 (display-buffer (current-buffer)))))
+      (delete-file error-file))
+    exit-status))
+
+(defun org-babel-eval-wipe-error-buffer ()
+  "Delete the contents of the Org code block error buffer.
+This buffer is named by `org-babel-error-buffer-name'."
+  (when (get-buffer org-babel-error-buffer-name)
+    (with-current-buffer org-babel-error-buffer-name
+      (delete-region (point-min) (point-max)))))
+
+(defconst org-babel-exeext
+  (if (memq system-type '(windows-nt cygwin))
+      ".exe"
+    nil))
+(defvar org-babel-call-process-region-original)
+(defvar org-src-lang-modes)
+(defvar org-babel-library-of-babel)
+(declare-function show-all "outline" ())
+(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
+(declare-function org-mark-ring-push "org" (&optional pos buffer))
+(declare-function tramp-compat-make-temp-file "tramp-compat"
+                  (filename &optional dir-flag))
+(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
+(declare-function tramp-file-name-user "tramp" (vec))
+(declare-function tramp-file-name-host "tramp" (vec))
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function org-icompleting-read "org" (&rest args))
+(declare-function org-edit-src-code "org-src"
+                  (&optional context code edit-buffer-name quietp))
+(declare-function org-edit-src-exit "org-src"  (&optional context))
+(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
+(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
+(declare-function org-outline-overlay-data "org" (&optional use-markers))
+(declare-function org-set-outline-overlay-data "org" (data))
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-entry-get "org"
+		  (pom property &optional inherit literal-nil))
+(declare-function org-make-options-regexp "org" (kwds &optional extra))
+(declare-function org-do-remove-indentation "org" (&optional n))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-cycle "org" (&optional arg))
+(declare-function org-uniquify "org" (list))
+(declare-function org-current-level "org" ())
+(declare-function org-table-import "org-table" (file arg))
+(declare-function org-add-hook "org-compat"
+		  (hook function &optional append local))
+(declare-function org-table-align "org-table" ())
+(declare-function org-table-end "org-table" (&optional table-type))
+(declare-function orgtbl-to-generic "org-table" (table params))
+(declare-function orgtbl-to-orgtbl "org-table" (table params))
+(declare-function org-number-sequence "org-compat" (from &optional to inc))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-list-parse-list "org-list" (&optional delete))
+(declare-function org-list-to-generic "org-list" (LIST PARAMS))
+(declare-function org-list-struct "org-list" ())
+(declare-function org-list-prevs-alist "org-list" (struct))
+(declare-function org-list-get-list-end "org-list" (item struct prevs))
+(declare-function org-remove-if "org" (predicate seq))
+(declare-function org-completing-read "org" (&rest args))
+(declare-function org-escape-code-in-region "org-src" (beg end))
+(declare-function org-unescape-code-in-string "org-src" (s))
+(declare-function org-table-to-lisp "org-table" (&optional txt))
+
+(defgroup org-babel nil
+  "Code block evaluation and management in `org-mode' documents."
+  :tag "Babel"
+  :group 'org)
+
+(defcustom org-confirm-babel-evaluate t
+  "Confirm before evaluation.
+Require confirmation before interactively evaluating code
+blocks in Org-mode buffers.  The default value of this variable
+is t, meaning confirmation is required for any code block
+evaluation.  This variable can be set to nil to inhibit any
+future confirmation requests.  This variable can also be set to a
+function which takes two arguments the language of the code block
+and the body of the code block.  Such a function should then
+return a non-nil value if the user should be prompted for
+execution or nil if no prompt is required.
+
+Warning: Disabling confirmation may result in accidental
+evaluation of potentially harmful code.  It may be advisable
+remove code block execution from C-c C-c as further protection
+against accidental code block evaluation.  The
+`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
+remove code block execution from the C-c C-c keybinding."
+  :group 'org-babel
+  :version "24.1"
+  :type '(choice boolean function))
+;; don't allow this variable to be changed through file settings
+(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
+
+(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
+  "Remove code block evaluation from the C-c C-c key binding."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+
+(defcustom org-babel-results-keyword "RESULTS"
+  "Keyword used to name results generated by code blocks.
+Should be either RESULTS or NAME however any capitalization may
+be used."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-start "<<"
+  "String used to begin a noweb reference in a code block.
+See also `org-babel-noweb-wrap-end'."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-end ">>"
+  "String used to end a noweb reference in a code block.
+See also `org-babel-noweb-wrap-start'."
+  :group 'org-babel
+  :type 'string)
+
+(defun org-babel-noweb-wrap (&optional regexp)
+  (concat org-babel-noweb-wrap-start
+	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
+	  org-babel-noweb-wrap-end))
+
+(defvar org-babel-src-name-regexp
+  "^[ \t]*#\\+name:[ \t]*"
+  "Regular expression used to match a source name line.")
+
+(defvar org-babel-multi-line-header-regexp
+  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
+  "Regular expression used to match multi-line header arguments.")
+
+(defvar org-babel-src-name-w-name-regexp
+  (concat org-babel-src-name-regexp
+	  "\\("
+	  org-babel-multi-line-header-regexp
+	  "\\)*"
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
+  "Regular expression matching source name lines with a name.")
+
+(defvar org-babel-src-block-regexp
+  (concat
+   ;; (1) indentation                 (2) lang
+   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
+   ;; (3) switches
+   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
+   ;; (4) header arguments
+   "\\([^\n]*\\)\n"
+   ;; (5) body
+   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
+  "Regexp used to identify code blocks.")
+
+(defvar org-babel-inline-src-block-regexp
+  (concat
+   ;; (1) replacement target (2) lang
+   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
+   ;; (3,4) (unused, headers)
+   "\\(\\|\\[\\(.*?\\)\\]\\)"
+   ;; (5) body
+   "{\\([^\f\n\r\v]+?\\)}\\)")
+  "Regexp used to identify inline src-blocks.")
+
+(defun org-babel-get-header (params key &optional others)
+  "Select only header argument of type KEY from a list.
+Optional argument OTHERS indicates that only the header that do
+not match KEY should be returned."
+  (delq nil
+	(mapcar
+	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
+	 params)))
+
+(defun org-babel-get-inline-src-block-matches()
+  "Set match data if within body of an inline source block.
+Returns non-nil if match-data set"
+  (let ((src-at-0-p (save-excursion
+		      (beginning-of-line 1)
+		      (string= "src" (thing-at-point 'word))))
+	(first-line-p (= 1 (line-number-at-pos)))
+	(orig (point)))
+    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
+			    (first-line-p "[[:punct:] \t]src_")
+			    (t "[[:punct:] \f\t\n\r\v]src_")))
+	  (lower-limit (if first-line-p
+			   nil
+			 (- (point-at-bol) 1))))
+      (save-excursion
+	(when (or (and src-at-0-p (bobp))
+		  (and (re-search-forward "}" (point-at-eol) t)
+		       (re-search-backward search-for lower-limit t)
+		       (> orig (point))))
+	  (when (looking-at org-babel-inline-src-block-regexp)
+	    t ))))))
+
+(defvar org-babel-inline-lob-one-liner-regexp)
+(defun org-babel-get-lob-one-liner-matches()
+  "Set match data if on line of an lob one liner.
+Returns non-nil if match-data set"
+  (save-excursion
+    (unless (= (point) (point-at-bol)) ;; move before inline block
+      (re-search-backward "[ \f\t\n\r\v]" nil t))
+    (if (looking-at org-babel-inline-lob-one-liner-regexp)
+	t
+      nil)))
+
+(defun org-babel-get-src-block-info (&optional light)
+  "Get information on the current source block.
+
+Optional argument LIGHT does not resolve remote variable
+references; a process which could likely result in the execution
+of other code blocks.
+
+Returns a list
+ (language body header-arguments-alist switches name indent)."
+  (let ((case-fold-search t) head info name indent)
+    ;; full code block
+    (if (setq head (org-babel-where-is-src-block-head))
+	(save-excursion
+	  (goto-char head)
+	  (setq info (org-babel-parse-src-block-match))
+	  (setq indent (car (last info)))
+	  (setq info (butlast info))
+	  (while (and (forward-line -1)
+		      (looking-at org-babel-multi-line-header-regexp))
+	    (setf (nth 2 info)
+		  (org-babel-merge-params
+		   (nth 2 info)
+		   (org-babel-parse-header-arguments (match-string 1)))))
+	  (when (looking-at org-babel-src-name-w-name-regexp)
+	    (setq name (org-no-properties (match-string 3)))
+	    (when (and (match-string 5) (> (length (match-string 5)) 0))
+	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
+		    (org-babel-merge-params
+		     (mapcar
+		      (lambda (ref) (cons :var ref))
+		      (mapcar
+		       (lambda (var) ;; check that each variable is initialized
+			 (if (string-match ".+=.+" var)
+			     var
+			   (error
+			    "variable \"%s\"%s must be assigned a default value"
+			    var (if name (format " in block \"%s\"" name) ""))))
+		       (org-babel-ref-split-args (match-string 5))))
+		     (nth 2 info))))))
+      ;; inline source block
+      (when (org-babel-get-inline-src-block-matches)
+	(setq info (org-babel-parse-inline-src-block-match))))
+    ;; resolve variable references and add summary parameters
+    (when (and info (not light))
+      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
+    (when info (append info (list name indent)))))
+
+(defvar org-current-export-file) ; dynamically bound
+(defun org-babel-confirm-evaluate (info)
+  "Confirm evaluation of the code block INFO.
+This behavior can be suppressed by setting the value of
+`org-confirm-babel-evaluate' to nil, in which case all future
+interactive code block evaluations will proceed without any
+confirmation from the user.
+
+Note disabling confirmation may result in accidental evaluation
+of potentially harmful code."
+  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
+		   (when (assoc :noeval (nth 2 info)) "no")))
+         (query (cond ((equal eval "query") t)
+		      ((and (boundp 'org-current-export-file)
+			    org-current-export-file
+			    (equal eval "query-export")) t)
+                      ((functionp org-confirm-babel-evaluate)
+                       (funcall org-confirm-babel-evaluate
+                                (nth 0 info) (nth 1 info)))
+                      (t org-confirm-babel-evaluate))))
+    (if (or (equal eval "never") (equal eval "no")
+	    (and (boundp 'org-current-export-file)
+		 org-current-export-file
+		 (or (equal eval "no-export")
+		     (equal eval "never-export")))
+	    (and query
+		 (not (yes-or-no-p
+		       (format "Evaluate this%scode block%son your system? "
+			       (if info (format " %s " (nth 0 info)) " ")
+			       (if (nth 4 info)
+				   (format " (%s) " (nth 4 info)) " "))))))
+	(prog1 nil (message "Evaluation %s"
+			    (if (or (equal eval "never") (equal eval "no")
+				    (equal eval "no-export")
+				    (equal eval "never-export"))
+				"Disabled" "Aborted")))
+      t)))
+
+;;;###autoload
+(defun org-babel-execute-safely-maybe ()
+  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
+    (org-babel-execute-maybe)))
+
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
+
+;;;###autoload
+(defun org-babel-execute-maybe ()
+  (interactive)
+  (or (org-babel-execute-src-block-maybe)
+      (org-babel-lob-execute-maybe)))
+
+(defun org-babel-execute-src-block-maybe ()
+  "Conditionally execute a source block.
+Detect if this is context for a Babel src-block and if so
+then run `org-babel-execute-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-eval-wipe-error-buffer)
+	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
+
+;;;###autoload
+(defun org-babel-view-src-block-info ()
+  "Display information on the current source block.
+This includes header arguments, language and name, and is largely
+a window into the `org-babel-get-src-block-info' function."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info 'light))
+	(full (lambda (it) (> (length it) 0)))
+	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
+    (when info
+      (with-help-window (help-buffer)
+	(let ((name        (nth 4 info))
+	      (lang        (nth 0 info))
+	      (switches    (nth 3 info))
+	      (header-args (nth 2 info)))
+	  (when name            (funcall printf "Name: %s\n"     name))
+	  (when lang            (funcall printf "Lang: %s\n"     lang))
+	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
+	  (funcall printf "Header Arguments:\n")
+	  (dolist (pair (sort header-args
+			      (lambda (a b) (string< (symbol-name (car a))
+						     (symbol-name (car b))))))
+	    (when (funcall full (cdr pair))
+	      (funcall printf "\t%S%s\t%s\n"
+		       (car pair)
+		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
+		       (cdr pair)))))))))
+
+;;;###autoload
+(defun org-babel-expand-src-block-maybe ()
+  "Conditionally expand a source block.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-expand-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-expand-src-block current-prefix-arg info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-load-in-session-maybe ()
+  "Conditionally load a source block in a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-load-in-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-load-in-session current-prefix-arg info) t)
+      nil)))
+
+(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
+
+;;;###autoload
+(defun org-babel-pop-to-session-maybe ()
+  "Conditionally pop to a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-pop-to-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
+
+(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
+
+(defconst org-babel-common-header-args-w-values
+  '((cache	. ((no yes)))
+    (cmdline	. :any)
+    (colnames	. ((nil no yes)))
+    (comments	. ((no link yes org both noweb)))
+    (dir	. :any)
+    (eval	. ((never query)))
+    (exports	. ((code results both none)))
+    (file	. :any)
+    (file-desc  . :any)
+    (hlines	. ((no yes)))
+    (mkdirp	. ((yes no)))
+    (no-expand)
+    (noeval)
+    (noweb	. ((yes no tangle no-export strip-export)))
+    (noweb-ref	. :any)
+    (noweb-sep  . :any)
+    (padline	. ((yes no)))
+    (results	. ((file list vector table scalar verbatim)
+		   (raw html latex org code pp drawer)
+		   (replace silent none append prepend)
+		   (output value)))
+    (rownames	. ((no yes)))
+    (sep	. :any)
+    (session	. :any)
+    (shebang	. :any)
+    (tangle	. ((tangle yes no :any)))
+    (var	. :any)
+    (wrap       . :any)))
+
+(defconst org-babel-header-arg-names
+  (mapcar #'car org-babel-common-header-args-w-values)
+  "Common header arguments used by org-babel.
+Note that individual languages may define their own language
+specific header arguments as well.")
+
+(defvar org-babel-default-header-args
+  '((:session . "none") (:results . "replace") (:exports . "code")
+    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
+    (:padnewline . "yes"))
+  "Default arguments to use when evaluating a source block.")
+
+(defvar org-babel-default-inline-header-args
+  '((:session . "none") (:results . "replace") (:exports . "results"))
+  "Default arguments to use when evaluating an inline source block.")
+
+(defvar org-babel-data-names '("tblname" "results" "name"))
+
+(defvar org-babel-result-regexp
+  (concat "^[ \t]*#\\+"
+	  (regexp-opt org-babel-data-names t)
+	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
+  "Regular expression used to match result lines.
+If the results are associated with a hash key then the hash will
+be saved in the second match data.")
+
+(defvar org-babel-result-w-name-regexp
+  (concat org-babel-result-regexp
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
+
+(defvar org-babel-min-lines-for-block-output 10
+  "The minimum number of lines for block output.
+If number of lines of output is equal to or exceeds this
+value, the output is placed in a #+begin_example...#+end_example
+block.  Otherwise the output is marked as literal by inserting
+colons at the starts of the lines.  This variable only takes
+effect if the :results output option is in effect.")
+
+(defvar org-babel-noweb-error-langs nil
+  "Languages for which Babel will raise literate programming errors.
+List of languages for which errors should be raised when the
+source code block satisfying a noweb reference in this language
+can not be resolved.")
+
+(defvar org-babel-hash-show 4
+  "Number of initial characters to show of a hidden results hash.")
+
+(defvar org-babel-after-execute-hook nil
+  "Hook for functions to be called after `org-babel-execute-src-block'")
+
+(defun org-babel-named-src-block-regexp-for-name (name)
+  "This generates a regexp used to match a src block named NAME."
+  (concat org-babel-src-name-regexp (regexp-quote name)
+	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
+	  (substring org-babel-src-block-regexp 1)))
+
+(defun org-babel-named-data-regexp-for-name (name)
+  "This generates a regexp used to match data named NAME."
+  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
+
+;;; ob-keys
+
+(defvar org-babel-key-prefix "\C-c\C-v"
+  "The key prefix for Babel interactive key-bindings.
+See `org-babel-key-bindings' for the list of interactive babel
+functions which are assigned key bindings, and see
+`org-babel-map' for the actual babel keymap.")
+
+(defvar org-babel-map (make-sparse-keymap)
+  "The keymap for interactive Babel functions.")
+
+;;;###autoload
+(defun org-babel-describe-bindings ()
+  "Describe all keybindings behind `org-babel-key-prefix'."
+  (interactive)
+  (describe-bindings org-babel-key-prefix))
+
+(defvar org-babel-key-bindings
+  '(("p" . org-babel-previous-src-block)
+    ("\C-p" . org-babel-previous-src-block)
+    ("n" . org-babel-next-src-block)
+    ("\C-n" . org-babel-next-src-block)
+    ("e" . org-babel-execute-maybe)
+    ("\C-e" . org-babel-execute-maybe)
+    ("o" . org-babel-open-src-block-result)
+    ("\C-o" . org-babel-open-src-block-result)
+    ("\C-v" . org-babel-expand-src-block)
+    ("v" . org-babel-expand-src-block)
+    ("u" . org-babel-goto-src-block-head)
+    ("\C-u" . org-babel-goto-src-block-head)
+    ("g" . org-babel-goto-named-src-block)
+    ("r" . org-babel-goto-named-result)
+    ("\C-r" . org-babel-goto-named-result)
+    ("\C-b" . org-babel-execute-buffer)
+    ("b" . org-babel-execute-buffer)
+    ("\C-s" . org-babel-execute-subtree)
+    ("s" . org-babel-execute-subtree)
+    ("\C-d" . org-babel-demarcate-block)
+    ("d" . org-babel-demarcate-block)
+    ("\C-t" . org-babel-tangle)
+    ("t" . org-babel-tangle)
+    ("\C-f" . org-babel-tangle-file)
+    ("f" . org-babel-tangle-file)
+    ("\C-c" . org-babel-check-src-block)
+    ("c" . org-babel-check-src-block)
+    ("\C-j" . org-babel-insert-header-arg)
+    ("j" . org-babel-insert-header-arg)
+    ("\C-l" . org-babel-load-in-session)
+    ("l" . org-babel-load-in-session)
+    ("\C-i" . org-babel-lob-ingest)
+    ("i" . org-babel-lob-ingest)
+    ("\C-I" . org-babel-view-src-block-info)
+    ("I" . org-babel-view-src-block-info)
+    ("\C-z" . org-babel-switch-to-session)
+    ("z" . org-babel-switch-to-session-with-code)
+    ("\C-a" . org-babel-sha1-hash)
+    ("a" . org-babel-sha1-hash)
+    ("h" . org-babel-describe-bindings)
+    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("\C-\M-h" . org-babel-mark-block))
+  "Alist of key bindings and interactive Babel functions.
+This list associates interactive Babel functions
+with keys.  Each element of this list will add an entry to the
+`org-babel-map' using the letter key which is the `car' of the
+a-list placed behind the generic `org-babel-key-prefix'.")
+
+;;; functions
+(defvar call-process-region)
+
+;;;###autoload
+(defun org-babel-execute-src-block (&optional arg info params)
+  "Execute the current source code block.
+Insert the results of execution into the buffer.  Source code
+execution and the collection and formatting of results can be
+controlled through a variety of header arguments.
+
+With prefix argument ARG, force re-execution even if an existing
+result cached in the buffer would otherwise have been returned.
+
+Optionally supply a value for INFO in the form returned by
+`org-babel-get-src-block-info'.
+
+Optionally supply a value for PARAMS which will be merged with
+the header arguments specified at the front of the source code
+block."
+  (interactive)
+  (let ((info (or info (org-babel-get-src-block-info))))
+    (when (org-babel-confirm-evaluate
+	   (let ((i info))
+	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
+	     i))
+      (let* ((lang (nth 0 info))
+	     (params (if params
+			 (org-babel-process-params
+			  (org-babel-merge-params (nth 2 info) params))
+		       (nth 2 info)))
+	     (cache? (and (not arg) (cdr (assoc :cache params))
+			  (string= "yes" (cdr (assoc :cache params)))))
+	     (result-params (cdr (assoc :result-params params)))
+	     (new-hash (when cache? (org-babel-sha1-hash info)))
+	     (old-hash (when cache? (org-babel-current-result-hash)))
+	     (body (setf (nth 1 info)
+			 (if (org-babel-noweb-p params :eval)
+			     (org-babel-expand-noweb-references info)
+			   (nth 1 info))))
+	     (dir (cdr (assoc :dir params)))
+	     (default-directory
+	       (or (and dir (file-name-as-directory (expand-file-name dir)))
+		   default-directory))
+	     (org-babel-call-process-region-original
+	      (if (boundp 'org-babel-call-process-region-original)
+		  org-babel-call-process-region-original
+		(symbol-function 'call-process-region)))
+	     (indent (car (last info)))
+	     result cmd)
+	(unwind-protect
+	    (let ((call-process-region
+		   (lambda (&rest args)
+		     (apply 'org-babel-tramp-handle-call-process-region args))))
+	      (let ((lang-check (lambda (f)
+				  (let ((f (intern (concat "org-babel-execute:" f))))
+				    (when (fboundp f) f)))))
+		(setq cmd
+		      (or (funcall lang-check lang)
+			  (funcall lang-check (symbol-name
+					       (cdr (assoc lang org-src-lang-modes))))
+			  (error "No org-babel-execute function for %s!" lang))))
+	      (if (and (not arg) new-hash (equal new-hash old-hash))
+		  (save-excursion ;; return cached result
+		    (goto-char (org-babel-where-is-src-block-result nil info))
+		    (end-of-line 1) (forward-char 1)
+		    (setq result (org-babel-read-result))
+		    (message (replace-regexp-in-string
+			      "%" "%%" (format "%S" result))) result)
+		(message "executing %s code block%s..."
+			 (capitalize lang)
+			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
+		(if (member "none" result-params)
+		    (progn
+		      (funcall cmd body params)
+		      (message "result silenced"))
+		(setq result
+		      ((lambda (result)
+			 (if (and (eq (cdr (assoc :result-type params)) 'value)
+				  (or (member "vector" result-params)
+				      (member "table" result-params))
+				  (not (listp result)))
+			     (list (list result)) result))
+		       (funcall cmd body params)))
+		;; if non-empty result and :file then write to :file
+		(when (cdr (assoc :file params))
+		  (when result
+		    (with-temp-file (cdr (assoc :file params))
+		      (insert
+		       (org-babel-format-result
+			result (cdr (assoc :sep (nth 2 info)))))))
+		  (setq result (cdr (assoc :file params))))
+		(org-babel-insert-result
+		 result result-params info new-hash indent lang)
+		(run-hooks 'org-babel-after-execute-hook)
+		result
+		)))
+	  (setq call-process-region 'org-babel-call-process-region-original))))))
+
+(defun org-babel-expand-body:generic (body params &optional var-lines)
+  "Expand BODY with PARAMS.
+Expand a block of code with org-babel according to its header
+arguments.  This generic implementation of body expansion is
+called for languages which have not defined their own specific
+org-babel-expand-body:lang function."
+  (mapconcat #'identity (append var-lines (list body)) "\n"))
+
+;;;###autoload
+(defun org-babel-expand-src-block (&optional arg info params)
+  "Expand the current source code block.
+Expand according to the source code block's header
+arguments and pop open the results in a preview buffer."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+	 (params (setf (nth 2 info)
+                       (sort (org-babel-merge-params (nth 2 info) params)
+                             (lambda (el1 el2) (string< (symbol-name (car el1))
+							(symbol-name (car el2)))))))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+			 (org-babel-expand-noweb-references info) (nth 1 info))))
+         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
+	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
+					  lang)))
+         (expanded
+	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
+	    (org-babel-expand-body:generic
+	     body params (and (fboundp assignments-cmd)
+			      (funcall assignments-cmd params))))))
+    (org-edit-src-code
+     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
+
+(defun org-babel-edit-distance (s1 s2)
+  "Return the edit (levenshtein) distance between strings S1 S2."
+  (let* ((l1 (length s1))
+	 (l2 (length s2))
+	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
+				(number-sequence 1 (1+ l1)))))
+	 (in (lambda (i j) (aref (aref dist i) j))))
+    (setf (aref (aref dist 0) 0) 0)
+    (dolist (j (number-sequence 1 l2))
+      (setf (aref (aref dist 0) j) j))
+    (dolist (i (number-sequence 1 l1))
+      (setf (aref (aref dist i) 0) i)
+      (dolist (j (number-sequence 1 l2))
+	(setf (aref (aref dist i) j)
+	      (min
+	       (1+ (funcall in (1- i) j))
+	       (1+ (funcall in i (1- j)))
+	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
+		  (funcall in (1- i) (1- j)))))))
+    (funcall in l1 l2)))
+
+(defun org-babel-combine-header-arg-lists (original &rest others)
+  "Combine a number of lists of header argument names and arguments."
+  (let ((results (copy-sequence original)))
+    (dolist (new-list others)
+      (dolist (arg-pair new-list)
+	(let ((header (car arg-pair))
+	      (args (cdr arg-pair)))
+	  (setq results
+		(cons arg-pair (org-remove-if
+				(lambda (pair) (equal header (car pair)))
+				results))))))
+    results))
+
+;;;###autoload
+(defun org-babel-check-src-block ()
+  "Check for misspelled header arguments in the current code block."
+  (interactive)
+  ;; TODO: report malformed code block
+  ;; TODO: report incompatible combinations of header arguments
+  ;; TODO: report uninitialized variables
+  (let ((too-close 2) ;; <- control closeness to report potential match
+	(names (mapcar #'symbol-name org-babel-header-arg-names)))
+    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
+			    (and (org-babel-where-is-src-block-head)
+				 (org-babel-parse-header-arguments
+				  (org-no-properties
+				   (match-string 4))))))
+      (dolist (name names)
+	(when (and (not (string= header name))
+		   (<= (org-babel-edit-distance header name) too-close)
+		   (not (member header names)))
+	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
+		 header name))))
+    (message "No suspicious header arguments found.")))
+
+;;;###autoload
+(defun org-babel-insert-header-arg ()
+  "Insert a header argument selecting from lists of common args and values."
+  (interactive)
+  (let* ((lang (car (org-babel-get-src-block-info 'light)))
+	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
+	 (headers (org-babel-combine-header-arg-lists
+		   org-babel-common-header-args-w-values
+		   (if (boundp lang-headers) (eval lang-headers) nil)))
+	 (arg (org-icompleting-read
+	       "Header Arg: "
+	       (mapcar
+		(lambda (header-spec) (symbol-name (car header-spec)))
+		headers))))
+    (insert ":" arg)
+    (let ((vals (cdr (assoc (intern arg) headers))))
+      (when vals
+	(insert
+	 " "
+	 (cond
+	  ((eq vals :any)
+	   (read-from-minibuffer "value: "))
+	  ((listp vals)
+	   (mapconcat
+	    (lambda (group)
+	      (let ((arg (org-icompleting-read
+			  "value: "
+			  (cons "default" (mapcar #'symbol-name group)))))
+		(if (and arg (not (string= "default" arg)))
+		    (concat arg " ")
+		  "")))
+	    vals ""))))))))
+
+;; Add support for completing-read insertion of header arguments after ":"
+(defun org-babel-header-arg-expand ()
+  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
+  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
+    (org-babel-enter-header-arg-w-completion (match-string 2))))
+
+(defun org-babel-enter-header-arg-w-completion (&optional lang)
+  "Insert header argument appropriate for LANG with completion."
+  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
+         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
+	 (headers-w-values (org-babel-combine-header-arg-lists
+			    org-babel-common-header-args-w-values lang-headers))
+         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
+         (header (org-completing-read "Header Arg: " headers))
+         (args (cdr (assoc (intern header) headers-w-values)))
+         (arg (when (and args (listp args))
+                (org-completing-read
+                 (format "%s: " header)
+                 (mapcar #'symbol-name (apply #'append args))))))
+    (insert (concat header " " (or arg "")))
+    (cons header arg)))
+
+(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
+
+;;;###autoload
+(defun org-babel-load-in-session (&optional arg info)
+  "Load the body of the current source-code block.
+Evaluate the header arguments for the source block before
+entering the session.  After loading the body this pops open the
+session."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (params (nth 2 info))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+                         (org-babel-expand-noweb-references info)
+		       (nth 1 info))))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (cmd (intern (concat "org-babel-load-session:" lang))))
+    (unless (fboundp cmd)
+      (error "No org-babel-load-session function for %s!" lang))
+    (pop-to-buffer (funcall cmd session body params))
+    (end-of-line 1)))
+
+;;;###autoload
+(defun org-babel-initiate-session (&optional arg info)
+  "Initiate session for current code block.
+If called with a prefix argument then resolve any variable
+references in the header arguments and assign these variables in
+the session.  Copy the body of the code block to the kill ring."
+  (interactive "P")
+  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+         (params (nth 2 info))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
+	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
+    (if (and (stringp session) (string= session "none"))
+	(error "This block is not using a session!"))
+    (unless (fboundp init-cmd)
+      (error "No org-babel-initiate-session function for %s!" lang))
+    (with-temp-buffer (insert (org-babel-trim body))
+                      (copy-region-as-kill (point-min) (point-max)))
+    (when arg
+      (unless (fboundp prep-cmd)
+	(error "No org-babel-prep-session function for %s!" lang))
+      (funcall prep-cmd session params))
+    (funcall init-cmd session params)))
+
+;;;###autoload
+(defun org-babel-switch-to-session (&optional arg info)
+  "Switch to the session of the current code block.
+Uses `org-babel-initiate-session' to start the session.  If called
+with a prefix argument then this is passed on to
+`org-babel-initiate-session'."
+  (interactive "P")
+  (pop-to-buffer (org-babel-initiate-session arg info))
+  (end-of-line 1))
+
+(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
+
+;;;###autoload
+(defun org-babel-switch-to-session-with-code (&optional arg info)
+  "Switch to code buffer and display session."
+  (interactive "P")
+  (let ((swap-windows
+	 (lambda ()
+	   (let ((other-window-buffer (window-buffer (next-window))))
+	     (set-window-buffer (next-window) (current-buffer))
+	     (set-window-buffer (selected-window) other-window-buffer))
+	   (other-window 1)))
+	(info (org-babel-get-src-block-info))
+	(org-src-window-setup 'reorganize-frame))
+    (save-excursion
+      (org-babel-switch-to-session arg info))
+    (org-edit-src-code)
+    (funcall swap-windows)))
+
+(defmacro org-babel-do-in-edit-buffer (&rest body)
+  "Evaluate BODY in edit buffer if there is a code block at point.
+Return t if a code block was found at point, nil otherwise."
+  `(let ((org-src-window-setup 'switch-invisibly))
+     (when (and (org-babel-where-is-src-block-head)
+		(org-edit-src-code nil nil nil))
+       (unwind-protect (progn ,@body)
+	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
+	     (org-edit-src-exit)))
+       t)))
+(def-edebug-spec org-babel-do-in-edit-buffer (body))
+
+(defun org-babel-do-key-sequence-in-edit-buffer (key)
+  "Read key sequence and execute the command in edit buffer.
+Enter a key sequence to be executed in the language major-mode
+edit buffer.  For example, TAB will alter the contents of the
+Org-mode code block according to the effect of TAB in the
+language major-mode buffer.  For languages that support
+interactive sessions, this can be used to send code from the Org
+buffer to the session for evaluation using the native major-mode
+evaluation mechanisms."
+  (interactive "kEnter key-sequence to execute in edit buffer: ")
+  (org-babel-do-in-edit-buffer
+   (call-interactively
+    (key-binding (or key (read-key-sequence nil))))))
+
+(defvar org-bracket-link-regexp)
+
+;;;###autoload
+(defun org-babel-open-src-block-result (&optional re-run)
+  "If `point' is on a src block then open the results of the
+source code block, otherwise return nil.  With optional prefix
+argument RE-RUN the source-code block is evaluated even if
+results already exist."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info)))
+    (when info
+      (save-excursion
+	;; go to the results, if there aren't any then run the block
+	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
+		       (progn (org-babel-execute-src-block)
+			      (org-babel-where-is-src-block-result))))
+	(end-of-line 1)
+	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
+	;; open the results
+	(if (looking-at org-bracket-link-regexp)
+	    ;; file results
+	    (org-open-at-point)
+	  (let ((r (org-babel-format-result
+		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
+	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
+	    (delete-region (point-min) (point-max))
+	    (insert r)))
+	t))))
+
+;;;###autoload
+(defmacro org-babel-map-src-blocks (file &rest body)
+  "Evaluate BODY forms on each source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer.  During evaluation of BODY the following local variables
+are set relative to the currently matched code block.
+
+full-block ------- string holding the entirety of the code block
+beg-block -------- point at the beginning of the code block
+end-block -------- point at the end of the matched code block
+lang ------------- string holding the language of the code block
+beg-lang --------- point at the beginning of the lang
+end-lang --------- point at the end of the lang
+switches --------- string holding the switches
+beg-switches ----- point at the beginning of the switches
+end-switches ----- point at the end of the switches
+header-args ------ string holding the header-args
+beg-header-args -- point at the beginning of the header-args
+end-header-args -- point at the end of the header-args
+body ------------- string holding the body of the code block
+beg-body --------- point at the beginning of the body
+end-body --------- point at the end of the body"
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-src-block-regexp nil t)
+	   (goto-char (match-beginning 0))
+	   (let ((full-block (match-string 0))
+		 (beg-block (match-beginning 0))
+		 (end-block (match-end 0))
+		 (lang (match-string 2))
+		 (beg-lang (match-beginning 2))
+		 (end-lang (match-end 2))
+		 (switches (match-string 3))
+		 (beg-switches (match-beginning 3))
+		 (end-switches (match-end 3))
+		 (header-args (match-string 4))
+		 (beg-header-args (match-beginning 4))
+		 (end-header-args (match-end 4))
+		 (body (match-string 5))
+		 (beg-body (match-beginning 5))
+		 (end-body (match-end 5)))
+	     ,@body
+	     (goto-char end-block))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-src-blocks (form body))
+
+;;;###autoload
+(defmacro org-babel-map-inline-src-blocks (file &rest body)
+  "Evaluate BODY forms on each inline source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-inline-src-blocks (form body))
+
+(defvar org-babel-lob-one-liner-regexp)
+
+;;;###autoload
+(defmacro org-babel-map-call-lines (file &rest body)
+  "Evaluate BODY forms on each call line in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-call-lines (form body))
+
+;;;###autoload
+(defmacro org-babel-map-executables (file &rest body)
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file"))
+	(rx (make-symbol "rx")))
+    `(let* ((,tempvar ,file)
+	    (,rx (concat "\\(" org-babel-src-block-regexp
+			 "\\|" org-babel-inline-src-block-regexp
+			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward ,rx nil t)
+	   (goto-char (match-beginning 1))
+	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-executables (form body))
+
+;;;###autoload
+(defun org-babel-execute-buffer (&optional arg)
+  "Execute source code blocks in a buffer.
+Call `org-babel-execute-src-block' on every source block in
+the current buffer."
+  (interactive "P")
+  (org-babel-eval-wipe-error-buffer)
+  (org-save-outline-visibility t
+    (org-babel-map-executables nil
+      (if (looking-at org-babel-lob-one-liner-regexp)
+          (org-babel-lob-execute-maybe)
+        (org-babel-execute-src-block arg)))))
+
+;;;###autoload
+(defun org-babel-execute-subtree (&optional arg)
+  "Execute source code blocks in a subtree.
+Call `org-babel-execute-src-block' on every source block in
+the current subtree."
+  (interactive "P")
+  (save-restriction
+    (save-excursion
+      (org-narrow-to-subtree)
+      (org-babel-execute-buffer arg)
+      (widen))))
+
+;;;###autoload
+(defun org-babel-sha1-hash (&optional info)
+  "Generate an sha1 hash based on the value of info."
+  (interactive)
+  (let ((print-level nil)
+	(info (or info (org-babel-get-src-block-info))))
+    (setf (nth 2 info)
+	  (sort (copy-sequence (nth 2 info))
+		(lambda (a b) (string< (car a) (car b)))))
+    (let* ((rm (lambda (lst)
+		 (dolist (p '("replace" "silent" "none"
+			      "append" "prepend"))
+		   (setq lst (remove p lst)))
+		 lst))
+	   (norm (lambda (arg)
+		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
+				(copy-sequence (cdr arg))
+			      (cdr arg))))
+		     (when (and v (not (and (sequencep v)
+					    (not (consp v))
+					    (= (length v) 0))))
+		       (cond
+			((and (listp v) ; lists are sorted
+			      (member (car arg) '(:result-params)))
+			 (sort (funcall rm v) #'string<))
+			((and (stringp v) ; strings are sorted
+			      (member (car arg) '(:results :exports)))
+			 (mapconcat #'identity (sort (funcall rm (split-string v))
+						     #'string<) " "))
+			(t v)))))))
+      ((lambda (hash)
+	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
+       (let ((it (format "%s-%s"
+			 (mapconcat
+			  #'identity
+			  (delq nil (mapcar (lambda (arg)
+					      (let ((normalized (funcall norm arg)))
+						(when normalized
+						  (format "%S" normalized))))
+					    (nth 2 info))) ":")
+			 (nth 1 info))))
+	 (sha1 it))))))
+
+(defun org-babel-current-result-hash ()
+  "Return the current in-buffer hash."
+  (org-babel-where-is-src-block-result)
+  (org-no-properties (match-string 3)))
+
+(defun org-babel-set-current-result-hash (hash)
+  "Set the current in-buffer hash to HASH."
+  (org-babel-where-is-src-block-result)
+  (save-excursion (goto-char (match-beginning 3))
+		  ;; (mapc #'delete-overlay (overlays-at (point)))
+		  (replace-match hash nil nil nil 3)
+		  (org-babel-hide-hash)))
+
+(defun org-babel-hide-hash ()
+  "Hide the hash in the current results line.
+Only the initial `org-babel-hash-show' characters of the hash
+will remain visible."
+  (add-to-invisibility-spec '(org-babel-hide-hash . t))
+  (save-excursion
+    (when (and (re-search-forward org-babel-result-regexp nil t)
+               (match-string 3))
+      (let* ((start (match-beginning 3))
+             (hide-start (+ org-babel-hash-show start))
+             (end (match-end 3))
+             (hash (match-string 3))
+             ov1 ov2)
+        (setq ov1 (make-overlay start hide-start))
+        (setq ov2 (make-overlay hide-start end))
+        (overlay-put ov2 'invisible 'org-babel-hide-hash)
+        (overlay-put ov1 'babel-hash hash)))))
+
+(defun org-babel-hide-all-hashes ()
+  "Hide the hash in the current buffer.
+Only the initial `org-babel-hash-show' characters of each hash
+will remain visible.  This function should be called as part of
+the `org-mode-hook'."
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (goto-char (match-beginning 0))
+      (org-babel-hide-hash)
+      (goto-char (match-end 0)))))
+(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
+
+(defun org-babel-hash-at-point (&optional point)
+  "Return the value of the hash at POINT.
+The hash is also added as the last element of the kill ring.
+This can be called with C-c C-c."
+  (interactive)
+  (let ((hash (car (delq nil (mapcar
+			      (lambda (ol) (overlay-get ol 'babel-hash))
+                              (overlays-at (or point (point))))))))
+    (when hash (kill-new hash) (message hash))))
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
+
+(defun org-babel-result-hide-spec ()
+  "Hide portions of results lines.
+Add `org-babel-hide-result' as an invisibility spec for hiding
+portions of results lines."
+  (add-to-invisibility-spec '(org-babel-hide-result . t)))
+(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
+
+(defvar org-babel-hide-result-overlays nil
+  "Overlays hiding results.")
+
+(defun org-babel-result-hide-all ()
+  "Fold all results in the current buffer."
+  (interactive)
+  (org-babel-show-result-all)
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (save-excursion (goto-char (match-beginning 0))
+                      (org-babel-hide-result-toggle-maybe)))))
+
+(defun org-babel-show-result-all ()
+  "Unfold all results in the current buffer."
+  (mapc 'delete-overlay org-babel-hide-result-overlays)
+  (setq org-babel-hide-result-overlays nil))
+
+;;;###autoload
+(defun org-babel-hide-result-toggle-maybe ()
+  "Toggle visibility of result at point."
+  (interactive)
+  (let ((case-fold-search t))
+    (if (save-excursion
+          (beginning-of-line 1)
+          (looking-at org-babel-result-regexp))
+        (progn (org-babel-hide-result-toggle)
+               t) ;; to signal that we took action
+      nil))) ;; to signal that we did not
+
+(defun org-babel-hide-result-toggle (&optional force)
+  "Toggle the visibility of the current result."
+  (interactive)
+  (save-excursion
+    (beginning-of-line)
+    (if (re-search-forward org-babel-result-regexp nil t)
+        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
+	      (end (progn
+		     (while (looking-at org-babel-multi-line-header-regexp)
+		       (forward-line 1))
+		     (goto-char (- (org-babel-result-end) 1)) (point)))
+	      ov)
+          (if (memq t (mapcar (lambda (overlay)
+                                (eq (overlay-get overlay 'invisible)
+				    'org-babel-hide-result))
+                              (overlays-at start)))
+              (if (or (not force) (eq force 'off))
+                  (mapc (lambda (ov)
+                          (when (member ov org-babel-hide-result-overlays)
+                            (setq org-babel-hide-result-overlays
+                                  (delq ov org-babel-hide-result-overlays)))
+                          (when (eq (overlay-get ov 'invisible)
+                                    'org-babel-hide-result)
+                            (delete-overlay ov)))
+                        (overlays-at start)))
+            (setq ov (make-overlay start end))
+            (overlay-put ov 'invisible 'org-babel-hide-result)
+            ;; make the block accessible to isearch
+            (overlay-put
+             ov 'isearch-open-invisible
+             (lambda (ov)
+               (when (member ov org-babel-hide-result-overlays)
+                 (setq org-babel-hide-result-overlays
+                       (delq ov org-babel-hide-result-overlays)))
+               (when (eq (overlay-get ov 'invisible)
+                         'org-babel-hide-result)
+                 (delete-overlay ov))))
+            (push ov org-babel-hide-result-overlays)))
+      (error "Not looking at a result line"))))
+
+;; org-tab-after-check-for-cycling-hook
+(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
+;; Remove overlays when changing major mode
+(add-hook 'org-mode-hook
+	  (lambda () (org-add-hook 'change-major-mode-hook
+				   'org-babel-show-result-all 'append 'local)))
+
+(defvar org-file-properties)
+(defun org-babel-params-from-properties (&optional lang)
+  "Retrieve parameters specified as properties.
+Return an association list of any source block params which
+may be specified in the properties of the current outline entry."
+  (save-match-data
+    (let (val sym)
+      (org-babel-parse-multiple-vars
+       (delq nil
+	     (mapcar
+	      (lambda (header-arg)
+		(and (setq val (org-entry-get (point) header-arg t))
+		     (cons (intern (concat ":" header-arg))
+			   (org-babel-read val))))
+	      (mapcar
+	       #'symbol-name
+	       (mapcar
+		#'car
+		(org-babel-combine-header-arg-lists
+		 org-babel-common-header-args-w-values
+		 (progn
+		   (setq sym (intern (concat "org-babel-header-args:" lang)))
+		   (and (boundp sym) (eval sym))))))))))))
+
+(defvar org-src-preserve-indentation)
+(defun org-babel-parse-src-block-match ()
+  "Parse the results from a match of the `org-babel-src-block-regexp'."
+  (let* ((block-indentation (length (match-string 1)))
+	 (lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
+	 (switches (match-string 3))
+         (body (org-no-properties
+		(let* ((body (match-string 5))
+		       (sub-length (- (length body) 1)))
+		  (if (and (> sub-length 0)
+			   (string= "\n" (substring body sub-length)))
+		      (substring body 0 sub-length)
+		    (or body "")))))
+	 (preserve-indentation (or org-src-preserve-indentation
+				   (save-match-data
+				     (string-match "-i\\>" switches)))))
+    (list lang
+          ;; get block body less properties, protective commas, and indentation
+          (with-temp-buffer
+            (save-match-data
+              (insert (org-unescape-code-in-string body))
+	      (unless preserve-indentation (org-do-remove-indentation))
+              (buffer-string)))
+	  (org-babel-merge-params
+	   org-babel-default-header-args
+           (org-babel-params-from-properties lang)
+	   (if (boundp lang-headers) (eval lang-headers) nil)
+	   (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) ""))))
+	  switches
+	  block-indentation)))
+
+(defun org-babel-parse-inline-src-block-match ()
+  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
+  (let* ((lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
+    (list lang
+          (org-unescape-code-in-string (org-no-properties (match-string 5)))
+          (org-babel-merge-params
+           org-babel-default-inline-header-args
+           (org-babel-params-from-properties lang)
+           (if (boundp lang-headers) (eval lang-headers) nil)
+           (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) "")))))))
+
+(defun org-babel-balanced-split (string alts)
+  "Split STRING on instances of ALTS.
+ALTS is a cons of two character options where each option may be
+either the numeric code of a single character or a list of
+character alternatives.  For example to split on balanced
+instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
+  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
+	 (matched (lambda (ch last)
+		    (if (consp alts)
+			(and (funcall matches ch (cdr alts))
+			     (funcall matches last (car alts)))
+		      (funcall matches ch alts))))
+	 (balance 0) (last 0)
+	 quote partial lst)
+    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
+	    (setq balance (+ balance
+			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
+				   ((or (equal 93 ch) (equal 41 ch)) -1)
+				   (t 0))))
+	    (when (and (equal 34 ch) (not (equal 92 last)))
+	      (setq quote (not quote)))
+	    (setq partial (cons ch partial))
+	    (when (and (= balance 0) (not quote) (funcall matched ch last))
+	      (setq lst (cons (apply #'string (nreverse
+					       (if (consp alts)
+						   (cddr partial)
+						 (cdr partial))))
+			      lst))
+	      (setq partial nil))
+	    (setq last ch))
+	  (string-to-list string))
+    (nreverse (cons (apply #'string (nreverse partial)) lst))))
+
+(defun org-babel-join-splits-near-ch (ch list)
+  "Join splits where \"=\" is on either end of the split."
+  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
+	(first= (lambda (str) (= ch (aref str 0)))))
+    (reverse
+     (org-reduce (lambda (acc el)
+		   (let ((head (car acc)))
+		     (if (and head (or (funcall last= head) (funcall first= el)))
+			 (cons (concat head el) (cdr acc))
+		       (cons el acc))))
+		 list :initial-value nil))))
+
+(defun org-babel-parse-header-arguments (arg-string)
+  "Parse a string of header arguments returning an alist."
+  (when (> (length arg-string) 0)
+    (org-babel-parse-multiple-vars
+     (delq nil
+	   (mapcar
+	    (lambda (arg)
+	      (if (string-match
+		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
+		   arg)
+		  (cons (intern (match-string 1 arg))
+			(org-babel-read (org-babel-chomp (match-string 2 arg))))
+		(cons (intern (org-babel-chomp arg)) nil)))
+	    ((lambda (raw)
+	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
+	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
+
+(defun org-babel-parse-multiple-vars (header-arguments)
+  "Expand multiple variable assignments behind a single :var keyword.
+
+This allows expression of multiple variables with one :var as
+shown below.
+
+#+PROPERTY: var foo=1, bar=2"
+  (let (results)
+    (mapc (lambda (pair)
+	    (if (eq (car pair) :var)
+		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
+			(org-babel-join-splits-near-ch
+			 61 (org-babel-balanced-split (cdr pair) 32)))
+	      (push pair results)))
+	  header-arguments)
+    (nreverse results)))
+
+(defun org-babel-process-params (params)
+  "Expand variables in PARAMS and add summary parameters."
+  (let* ((processed-vars (mapcar (lambda (el)
+				   (if (consp (cdr el))
+				       (cdr el)
+				     (org-babel-ref-parse (cdr el))))
+				 (org-babel-get-header params :var)))
+	 (vars-and-names (if (and (assoc :colname-names params)
+				  (assoc :rowname-names params))
+			     (list processed-vars)
+			   (org-babel-disassemble-tables
+			    processed-vars
+			    (cdr (assoc :hlines params))
+			    (cdr (assoc :colnames params))
+			    (cdr (assoc :rownames params)))))
+	 (raw-result (or (cdr (assoc :results params)) ""))
+	 (result-params (append
+			 (split-string (if (stringp raw-result)
+					   raw-result
+					 (eval raw-result)))
+			 (cdr (assoc :result-params params)))))
+    (append
+     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
+     (list
+      (cons :colname-names (or (cdr (assoc :colname-names params))
+			       (cadr  vars-and-names)))
+      (cons :rowname-names (or (cdr (assoc :rowname-names params))
+			       (caddr vars-and-names)))
+      (cons :result-params result-params)
+      (cons :result-type  (cond ((member "output" result-params) 'output)
+				((member "value" result-params) 'value)
+				(t 'value))))
+     (org-babel-get-header params :var 'other))))
+
+;; row and column names
+(defun org-babel-del-hlines (table)
+  "Remove all 'hlines from TABLE."
+  (remove 'hline table))
+
+(defun org-babel-get-colnames (table)
+  "Return the column names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names."
+  (if (equal 'hline (nth 1 table))
+      (cons (cddr table) (car table))
+    (cons (cdr table) (car table))))
+
+(defun org-babel-get-rownames (table)
+  "Return the row names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names.  Note: this function removes any hlines in TABLE."
+  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
+	 (width (apply 'max
+		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
+	 (table (funcall trans (mapcar (lambda (row)
+					 (if (not (equal row 'hline))
+					     row
+					   (setq row '())
+					   (dotimes (n width)
+					     (setq row (cons 'hline row)))
+					   row))
+				       table))))
+    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
+		  (funcall trans (cdr table)))
+	  (remove 'hline (car table)))))
+
+(defun org-babel-put-colnames (table colnames)
+  "Add COLNAMES to TABLE if they exist."
+  (if colnames (apply 'list colnames 'hline table) table))
+
+(defun org-babel-put-rownames (table rownames)
+  "Add ROWNAMES to TABLE if they exist."
+  (if rownames
+      (mapcar (lambda (row)
+                (if (listp row)
+                    (cons (or (pop rownames) "") row)
+                  row)) table)
+    table))
+
+(defun org-babel-pick-name (names selector)
+  "Select one out of an alist of row or column names.
+SELECTOR can be either a list of names in which case those names
+will be returned directly, or an index into the list NAMES in
+which case the indexed names will be return."
+  (if (listp selector)
+      selector
+    (when names
+      (if (and selector (symbolp selector) (not (equal t selector)))
+	  (cdr (assoc selector names))
+	(if (integerp selector)
+	    (nth (- selector 1) names)
+	  (cdr (car (last names))))))))
+
+(defun org-babel-disassemble-tables (vars hlines colnames rownames)
+  "Parse tables for further processing.
+Process the variables in VARS according to the HLINES,
+ROWNAMES and COLNAMES header arguments.  Return a list consisting
+of the vars, cnames and rnames."
+  (let (cnames rnames)
+    (list
+     (mapcar
+      (lambda (var)
+        (when (listp (cdr var))
+          (when (and (not (equal colnames "no"))
+                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
+                                       (not (member 'hline (cddr (cdr var)))))))
+            (let ((both (org-babel-get-colnames (cdr var))))
+              (setq cnames (cons (cons (car var) (cdr both))
+                                 cnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and rownames (not (equal rownames "no")))
+            (let ((both (org-babel-get-rownames (cdr var))))
+              (setq rnames (cons (cons (car var) (cdr both))
+                                 rnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and hlines (not (equal hlines "yes")))
+            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
+        var)
+      vars)
+     (reverse cnames) (reverse rnames))))
+
+(defun org-babel-reassemble-table (table colnames rownames)
+  "Add column and row names to a table.
+Given a TABLE and set of COLNAMES and ROWNAMES add the names
+to the table for reinsertion to org-mode."
+  (if (listp table)
+      ((lambda (table)
+         (if (and colnames (listp (car table)) (= (length (car table))
+                                                  (length colnames)))
+             (org-babel-put-colnames table colnames) table))
+       (if (and rownames (= (length table) (length rownames)))
+           (org-babel-put-rownames table rownames) table))
+    table))
+
+(defun org-babel-where-is-src-block-head ()
+  "Find where the current source block begins.
+Return the point at the beginning of the current source
+block.  Specifically at the beginning of the #+BEGIN_SRC line.
+If the point is not on a source block then return nil."
+  (let ((initial (point)) (case-fold-search t) top bottom)
+    (or
+     (save-excursion ;; on a source name line or a #+header line
+       (beginning-of-line 1)
+       (and (or (looking-at org-babel-src-name-regexp)
+		(looking-at org-babel-multi-line-header-regexp))
+	    (progn
+	      (while (and (forward-line 1)
+			  (or (looking-at org-babel-src-name-regexp)
+			      (looking-at org-babel-multi-line-header-regexp))))
+	      (looking-at org-babel-src-block-regexp))
+            (point)))
+     (save-excursion ;; on a #+begin_src line
+       (beginning-of-line 1)
+       (and (looking-at org-babel-src-block-regexp)
+            (point)))
+     (save-excursion ;; inside a src block
+       (and
+        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
+        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
+        (< top initial) (< initial bottom)
+        (progn (goto-char top) (beginning-of-line 1)
+	       (looking-at org-babel-src-block-regexp))
+        (point))))))
+
+;;;###autoload
+(defun org-babel-goto-src-block-head ()
+  "Go to the beginning of the current code block."
+  (interactive)
+  ((lambda (head)
+     (if head (goto-char head) (error "Not currently in a code block")))
+   (org-babel-where-is-src-block-head)))
+
+;;;###autoload
+(defun org-babel-goto-named-src-block (name)
+  "Go to a named source-code block."
+  (interactive
+   (let ((completion-ignore-case t)
+	 (case-fold-search t)
+	 (under-point (thing-at-point 'line)))
+     (list (org-icompleting-read
+	    "source-block name: " (org-babel-src-block-names) nil t
+	    (cond
+	     ;; noweb
+	     ((string-match (org-babel-noweb-wrap) under-point)
+	      (let ((block-name (match-string 1 under-point)))
+		(string-match "[^(]*" block-name)
+		(match-string 0 block-name)))
+	     ;; #+call:
+	     ((string-match org-babel-lob-one-liner-regexp under-point)
+	      (let ((source-info (car (org-babel-lob-get-info))))
+		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
+		    (let ((source-name (match-string 1 source-info)))
+		      source-name))))
+	     ;; #+results:
+	     ((string-match (concat "#\\+" org-babel-results-keyword
+				    "\\:\s+\\([^\\(]*\\)") under-point)
+	      (match-string 1 under-point))
+	     ;; symbol-at-point
+	     ((and (thing-at-point 'symbol))
+	      (org-babel-find-named-block (thing-at-point 'symbol))
+	      (thing-at-point 'symbol))
+	     (""))))))
+  (let ((point (org-babel-find-named-block name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
+      (message "source-code block '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-block (name)
+  "Find a named source-code block.
+Return the location of the source block identified by source
+NAME, or nil if no such block exists.  Set match data according to
+org-babel-named-src-block-regexp."
+  (save-excursion
+    (let ((case-fold-search t)
+	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
+      (goto-char (point-min))
+      (when (or (re-search-forward regexp nil t)
+		(re-search-backward regexp nil t))
+        (match-beginning 0)))))
+
+(defun org-babel-src-block-names (&optional file)
+  "Returns the names of source blocks in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
+	(setq names (cons (match-string 3) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-goto-named-result (name)
+  "Go to a named result."
+  (interactive
+   (let ((completion-ignore-case t))
+     (list (org-icompleting-read "source-block name: "
+				 (org-babel-result-names) nil t))))
+  (let ((point (org-babel-find-named-result name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (goto-char point) (org-show-context))
+      (message "result '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-result (name &optional point)
+  "Find a named result.
+Return the location of the result named NAME in the current
+buffer or nil if no such result exists."
+  (save-excursion
+    (let ((case-fold-search t))
+      (goto-char (or point (point-min)))
+      (catch 'is-a-code-block
+	(when (re-search-forward
+	       (concat org-babel-result-regexp
+		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
+	  (when (and (string= "name" (downcase (match-string 1)))
+		     (or (beginning-of-line 1)
+			 (looking-at org-babel-src-block-regexp)
+			 (looking-at org-babel-multi-line-header-regexp)))
+	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
+	  (beginning-of-line 0) (point))))))
+
+(defun org-babel-result-names (&optional file)
+  "Returns the names of results in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-result-w-name-regexp nil t)
+	(setq names (cons (match-string 4) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-next-src-block (&optional arg)
+  "Jump to the next source block.
+With optional prefix argument ARG, jump forward ARG many source blocks."
+  (interactive "P")
+  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
+  (condition-case nil
+      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No further code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+;;;###autoload
+(defun org-babel-previous-src-block (&optional arg)
+  "Jump to the previous source block.
+With optional prefix argument ARG, jump backward ARG many source blocks."
+  (interactive "P")
+  (condition-case nil
+      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No previous code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+(defvar org-babel-load-languages)
+
+;;;###autoload
+(defun org-babel-mark-block ()
+  "Mark current src block."
+  (interactive)
+  ((lambda (head)
+     (when head
+       (save-excursion
+	 (goto-char head)
+	 (looking-at org-babel-src-block-regexp))
+       (push-mark (match-end 5) nil t)
+       (goto-char (match-beginning 5))))
+   (org-babel-where-is-src-block-head)))
+
+(defun org-babel-demarcate-block (&optional arg)
+  "Wrap or split the code in the region or on the point.
+When called from inside of a code block the current block is
+split.  When called from outside of a code block a new code block
+is created.  In both cases if the region is demarcated and if the
+region is not active then the point is demarcated."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info 'light))
+	(headers (progn (org-babel-where-is-src-block-head)
+			(match-string 4)))
+	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
+    (if info
+        (mapc
+         (lambda (place)
+           (save-excursion
+             (goto-char place)
+             (let ((lang (nth 0 info))
+                   (indent (make-string (nth 5 info) ? )))
+	       (when (string-match "^[[:space:]]*$"
+				   (buffer-substring (point-at-bol)
+						     (point-at-eol)))
+		 (delete-region (point-at-bol) (point-at-eol)))
+               (insert (concat
+			(if (looking-at "^") "" "\n")
+			indent "#+end_src\n"
+			(if arg stars indent) "\n"
+			indent "#+begin_src " lang
+			(if (> (length headers) 1)
+			    (concat " " headers) headers)
+			(if (looking-at "[\n\r]")
+			    ""
+			  (concat "\n" (make-string (current-column) ? )))))))
+	   (move-end-of-line 2))
+         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
+      (let ((start (point))
+	    (lang (org-icompleting-read "Lang: "
+					(mapcar (lambda (el) (symbol-name (car el)))
+						org-babel-load-languages)))
+	    (body (delete-and-extract-region
+		   (if (org-region-active-p) (mark) (point)) (point))))
+	(insert (concat (if (looking-at "^") "" "\n")
+			(if arg (concat stars "\n") "")
+			"#+begin_src " lang "\n"
+			body
+			(if (or (= (length body) 0)
+				(string-match "[\r\n]$" body)) "" "\n")
+			"#+end_src\n"))
+	(goto-char start) (move-end-of-line 1)))))
+
+(defvar org-babel-lob-one-liner-regexp)
+(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
+  "Find where the current source block results begin.
+Return the point at the beginning of the result of the current
+source block.  Specifically at the beginning of the results line.
+If no result exists for this block then create a results line
+following the source block."
+  (save-excursion
+    (let* ((case-fold-search t)
+	   (on-lob-line (save-excursion
+			  (beginning-of-line 1)
+			  (looking-at org-babel-lob-one-liner-regexp)))
+	   (inlinep (when (org-babel-get-inline-src-block-matches)
+		      (match-end 0)))
+	   (name (if on-lob-line
+		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
+		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
+	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
+	   found beg end)
+      (when head (goto-char head))
+      (org-with-wide-buffer
+       (setq
+	found ;; was there a result (before we potentially insert one)
+	(or
+	 inlinep
+	 (and
+	  ;; named results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it does not need to be rebuilt, then don't set end
+	  ;; - if it does need to be rebuilt then do set end
+	  name (setq beg (org-babel-find-named-result name))
+	  (prog1 beg
+	    (when (and hash (not (string= hash (match-string 3))))
+	      (goto-char beg) (setq end beg) ;; beginning of result
+	      (forward-line 1)
+	      (delete-region end (org-babel-result-end)) nil)))
+	 (and
+	  ;; unnamed results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it is found, and the hash doesn't match, delete and set end
+	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
+	  (progn (end-of-line 1)
+		 (if (eobp) (insert "\n") (forward-char 1))
+		 (setq end (point))
+		 (or (and (not name)
+			  (progn ;; unnamed results line already exists
+			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
+			    (beginning-of-line 1)
+			    (looking-at
+			     (concat org-babel-result-regexp "\n")))
+			  (prog1 (point)
+			    ;; must remove and rebuild if hash!=old-hash
+			    (if (and hash (not (string= hash (match-string 3))))
+				(prog1 nil
+				  (forward-line 1)
+				  (delete-region
+				   end (org-babel-result-end)))
+			      (setq end nil))))))))))
+      (if (not (and insert end)) found
+	(goto-char end)
+	(unless beg
+	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
+	(insert (concat
+		 (when (wholenump indent) (make-string indent ? ))
+		 "#+" org-babel-results-keyword
+		 (when hash (concat "["hash"]"))
+		 ":"
+		 (when name (concat " " name)) "\n"))
+	(unless beg (insert "\n") (backward-char))
+	(beginning-of-line 0)
+	(if hash (org-babel-hide-hash))
+	(point)))))
+
+(defvar org-block-regexp)
+(defun org-babel-read-result ()
+  "Read the result at `point' into emacs-lisp."
+  (let ((case-fold-search t) result-string)
+    (cond
+     ((org-at-table-p) (org-babel-read-table))
+     ((org-at-item-p) (org-babel-read-list))
+     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
+     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
+     ((looking-at "^[ \t]*: ")
+      (setq result-string
+	    (org-babel-trim
+	     (mapconcat (lambda (line)
+                          (if (and (> (length line) 1)
+                                   (string-match "^[ \t]*: \\(.+\\)" line))
+                              (match-string 1 line)
+                            line))
+			(split-string
+			 (buffer-substring
+                          (point) (org-babel-result-end)) "[\r\n]+")
+			"\n")))
+      (or (org-babel-number-p result-string) result-string))
+     ((looking-at org-babel-result-regexp)
+      (save-excursion (forward-line 1) (org-babel-read-result))))))
+
+(defun org-babel-read-table ()
+  "Read the table at `point' into emacs-lisp."
+  (mapcar (lambda (row)
+            (if (and (symbolp row) (equal row 'hline)) row
+              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
+          (org-table-to-lisp)))
+
+(defun org-babel-read-list ()
+  "Read the list at `point' into emacs-lisp."
+  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
+	  (mapcar #'cadr (cdr (org-list-parse-list)))))
+
+(defvar org-link-types-re)
+(defun org-babel-read-link ()
+  "Read the link at `point' into emacs-lisp.
+If the path of the link is a file path it is expanded using
+`expand-file-name'."
+  (let* ((case-fold-search t)
+         (raw (and (looking-at org-bracket-link-regexp)
+                   (org-no-properties (match-string 1))))
+         (type (and (string-match org-link-types-re raw)
+                    (match-string 1 raw))))
+    (cond
+     ((not type) (expand-file-name raw))
+     ((string= type "file")
+      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
+           (expand-file-name (match-string 2 raw))))
+     (t raw))))
+
+(defun org-babel-format-result (result &optional sep)
+  "Format RESULT for writing to file."
+  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
+    (if (listp result)
+	;; table result
+	(orgtbl-to-generic
+	 result (list :sep (or sep "\t") :fmt echo-res))
+      ;; scalar result
+      (funcall echo-res result))))
+
+(defun org-babel-insert-result
+  (result &optional result-params info hash indent lang)
+  "Insert RESULT into the current buffer.
+By default RESULT is inserted after the end of the
+current source block.  With optional argument RESULT-PARAMS
+controls insertion of results in the org-mode file.
+RESULT-PARAMS can take the following values:
+
+replace - (default option) insert results after the source block
+          replacing any previously inserted results
+
+silent -- no results are inserted into the Org-mode buffer but
+          the results are echoed to the minibuffer and are
+          ingested by Emacs (a potentially time consuming
+          process)
+
+file ---- the results are interpreted as a file path, and are
+          inserted into the buffer using the Org-mode file syntax
+
+list ---- the results are interpreted as an Org-mode list.
+
+raw ----- results are added directly to the Org-mode file.  This
+          is a good option if you code block will output org-mode
+          formatted text.
+
+drawer -- results are added directly to the Org-mode file as with
+          \"raw\", but are wrapped in a RESULTS drawer, allowing
+          them to later be replaced or removed automatically.
+
+org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
+          They are not comma-escaped when inserted, but Org syntax
+          here will be discarded when exporting the file.
+
+html ---- results are added inside of a #+BEGIN_HTML block.  This
+          is a good option if you code block will output html
+          formatted text.
+
+latex --- results are added inside of a #+BEGIN_LATEX block.
+          This is a good option if you code block will output
+          latex formatted text.
+
+code ---- the results are extracted in the syntax of the source
+          code of the language being evaluated and are added
+          inside of a #+BEGIN_SRC block with the source-code
+          language set appropriately.  Note this relies on the
+          optional LANG argument."
+  (if (stringp result)
+      (progn
+        (setq result (org-no-properties result))
+        (when (member "file" result-params)
+	  (setq result (org-babel-result-to-file
+			result (when (assoc :file-desc (nth 2 info))
+				 (or (cdr (assoc :file-desc (nth 2 info)))
+				     result))))))
+    (unless (listp result) (setq result (format "%S" result))))
+  (if (and result-params (member "silent" result-params))
+      (progn
+	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
+	result)
+    (save-excursion
+      (let* ((inlinep
+	      (save-excursion
+		(when (or (org-babel-get-inline-src-block-matches)
+			  (org-babel-get-lob-one-liner-matches))
+		  (goto-char (match-end 0))
+		  (insert (if (listp result) "\n" " "))
+		  (point))))
+	     (existing-result (unless inlinep
+				(org-babel-where-is-src-block-result
+				 t info hash indent)))
+	     (results-switches
+	      (cdr (assoc :results_switches (nth 2 info))))
+	     (visible-beg (copy-marker (point-min)))
+	     (visible-end (copy-marker (point-max)))
+	     ;; When results exist outside of the current visible
+	     ;; region of the buffer, be sure to widen buffer to
+	     ;; update them.
+	     (outside-scope-p (and existing-result
+				   (or (> visible-beg existing-result)
+				       (<= visible-end existing-result))))
+	     beg end)
+	(when (and (stringp result)  ; ensure results end in a newline
+		   (not inlinep)
+		   (> (length result) 0)
+		   (not (or (string-equal (substring result -1) "\n")
+			    (string-equal (substring result -1) "\r"))))
+	  (setq result (concat result "\n")))
+	(unwind-protect
+	    (progn
+	      (when outside-scope-p (widen))
+	      (if (not existing-result)
+		  (setq beg (or inlinep (point)))
+		(goto-char existing-result)
+		(save-excursion
+		  (re-search-forward "#" nil t)
+		  (setq indent (- (current-column) 1)))
+		(forward-line 1)
+		(setq beg (point))
+		(cond
+		 ((member "replace" result-params)
+		  (delete-region (point) (org-babel-result-end)))
+		 ((member "append" result-params)
+		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
+		 ((member "prepend" result-params)))) ; already there
+	      (setq results-switches
+		    (if results-switches (concat " " results-switches) ""))
+	      (let ((wrap (lambda (start finish &optional no-escape)
+			    (goto-char end) (insert (concat finish "\n"))
+			    (goto-char beg) (insert (concat start "\n"))
+			    (unless no-escape
+			      (org-escape-code-in-region (point) end))
+			    (goto-char end) (goto-char (point-at-eol))
+			    (setq end (point-marker))))
+		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
+		;; insert results based on type
+		(cond
+		 ;; do nothing for an empty result
+		 ((null result))
+		 ;; insert a list if preferred
+		 ((member "list" result-params)
+		  (insert
+		   (org-babel-trim
+		    (org-list-to-generic
+		     (cons 'unordered
+			   (mapcar
+			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
+			    (if (listp result) result (list result))))
+		     '(:splicep nil :istart "- " :iend "\n")))
+		   "\n"))
+		 ;; assume the result is a table if it's not a string
+		 ((funcall proper-list-p result)
+		  (goto-char beg)
+		  (insert (concat (orgtbl-to-orgtbl
+				   (if (or (eq 'hline (car result))
+					   (and (listp (car result))
+						(listp (cdr (car result)))))
+				       result (list result))
+				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
+		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
+		 ((and (listp result) (not (funcall proper-list-p result)))
+		  (insert (format "%s\n" result)))
+		 ((member "file" result-params)
+		  (when inlinep (goto-char inlinep))
+		  (insert result))
+		 (t (goto-char beg) (insert result)))
+		(when (funcall proper-list-p result) (goto-char (org-table-end)))
+		(setq end (point-marker))
+		;; possibly wrap result
+		(cond
+		 ((assoc :wrap (nth 2 info))
+		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
+		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
+		 ((member "html" result-params)
+		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
+		 ((member "latex" result-params)
+		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
+		 ((member "org" result-params)
+		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
+		 ((member "code" result-params)
+		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
+			   "#+END_SRC"))
+		 ((member "raw" result-params)
+		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
+		 ((or (member "drawer" result-params)
+		      ;; Stay backward compatible with <7.9.2
+		      (member "wrap" result-params))
+		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
+		 ((and (not (funcall proper-list-p result))
+		       (not (member "file" result-params)))
+		  (org-babel-examplize-region beg end results-switches)
+		  (setq end (point)))))
+	      ;; possibly indent the results to match the #+results line
+	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
+			 ;; in this case `table-align' does the work for us
+			 (not (and (listp result)
+				   (member "append" result-params))))
+		(indent-rigidly beg end indent))
+	      (if (null result)
+		  (if (member "value" result-params)
+		      (message "Code block returned no value.")
+		    (message "Code block produced no output."))
+		(message "Code block evaluation complete.")))
+	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
+	  (set-marker visible-beg nil)
+	  (set-marker visible-end nil))))))
+
+(defun org-babel-remove-result (&optional info)
+  "Remove the result of the current source block."
+  (interactive)
+  (let ((location (org-babel-where-is-src-block-result nil info)) start)
+    (when location
+      (setq start (- location 1))
+      (save-excursion
+        (goto-char location) (forward-line 1)
+        (delete-region start (org-babel-result-end))))))
+
+(defun org-babel-result-end ()
+  "Return the point at the end of the current set of results."
+  (save-excursion
+    (cond
+     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
+     ((org-at-item-p) (let* ((struct (org-list-struct))
+			     (prvs (org-list-prevs-alist struct)))
+			(org-list-get-list-end (point-at-bol) struct prvs)))
+     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
+      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
+	     (forward-char 1) (point)))
+     (t
+      (let ((case-fold-search t))
+	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
+	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
+				      nil t)
+		   (forward-char 1))
+	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
+	    (forward-line 1))))
+      (point)))))
+
+(defun org-babel-result-to-file (result &optional description)
+  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
+If the `default-directory' is different from the containing
+file's directory then expand relative links."
+  (when (stringp result)
+    (format "[[file:%s]%s]"
+	    (if (and default-directory
+		     buffer-file-name
+		     (not (string= (expand-file-name default-directory)
+				   (expand-file-name
+				    (file-name-directory buffer-file-name)))))
+		(expand-file-name result default-directory)
+	      result)
+	    (if description (concat "[" description "]") ""))))
+
+(defvar org-babel-capitalize-examplize-region-markers nil
+  "Make true to capitalize begin/end example markers inserted by code blocks.")
+
+(defun org-babel-examplize-region (beg end &optional results-switches)
+  "Comment out region using the inline '==' or ': ' org example quote."
+  (interactive "*r")
+  (let ((chars-between (lambda (b e)
+			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
+	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
+				     (upcase str) str))))
+    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
+	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
+	(save-excursion
+	  (goto-char beg)
+	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
+				   (delete-region beg end)))))
+      (let ((size (count-lines beg end)))
+	(save-excursion
+	  (cond ((= size 0))	      ; do nothing for an empty result
+		((< size org-babel-min-lines-for-block-output)
+		 (goto-char beg)
+		 (dotimes (n size)
+		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
+		(t
+		 (goto-char beg)
+		 (insert (if results-switches
+			     (format "%s%s\n"
+				     (funcall maybe-cap "#+begin_example")
+				     results-switches)
+			   (funcall maybe-cap "#+begin_example\n")))
+		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
+		 (insert (funcall maybe-cap "#+end_example\n")))))))))
+
+(defun org-babel-update-block-body (new-body)
+  "Update the body of the current code block to NEW-BODY."
+  (if (not (org-babel-where-is-src-block-head))
+      (error "Not in a source block")
+    (save-match-data
+      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
+    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
+
+(defun org-babel-merge-params (&rest plists)
+  "Combine all parameter association lists in PLISTS.
+Later elements of PLISTS override the values of previous elements.
+This takes into account some special considerations for certain
+parameters when merging lists."
+  (let* ((results-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
+	 (exports-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
+	 (variable-index 0)
+	 (e-merge (lambda (exclusive-groups &rest result-params)
+		    ;; maintain exclusivity of mutually exclusive parameters
+		    (let (output)
+		      (mapc (lambda (new-params)
+			      (mapc (lambda (new-param)
+				      (mapc (lambda (exclusive-group)
+					      (when (member new-param exclusive-group)
+						(mapcar (lambda (excluded-param)
+							  (setq output
+								(delete
+								 excluded-param
+								 output)))
+							exclusive-group)))
+					    exclusive-groups)
+				      (setq output (org-uniquify
+						    (cons new-param output))))
+				    new-params))
+			    result-params)
+		      output)))
+	 params results exports tangle noweb cache vars shebang comments padline)
+
+    (mapc
+     (lambda (plist)
+       (mapc
+	(lambda (pair)
+	  (case (car pair)
+	    (:var
+	     (let ((name (if (listp (cdr pair))
+			     (cadr pair)
+			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
+					      (cdr pair))
+				(intern (match-string 1 (cdr pair)))))))
+	       (if name
+		   (setq vars
+			 (append
+			  (if (member name (mapcar #'car vars))
+			      (delq nil
+				    (mapcar
+				     (lambda (p)
+				       (unless (equal (car p) name) p))
+				     vars))
+			    vars)
+			  (list (cons name pair))))
+		 ;; if no name is given and we already have named variables
+		 ;; then assign to named variables in order
+		 (if (and vars (nth variable-index vars))
+		     (prog1 (setf (cddr (nth variable-index vars))
+				  (concat (symbol-name
+					   (car (nth variable-index vars)))
+					  "=" (cdr pair)))
+		       (incf variable-index))
+		   (error "Variable \"%s\" must be assigned a default value"
+			  (cdr pair))))))
+	    (:results
+	     (setq results (funcall e-merge results-exclusive-groups
+				    results
+				    (split-string
+				     (let ((r (cdr pair)))
+				       (if (stringp r) r (eval r)))))))
+	    (:file
+	     (when (cdr pair)
+	       (setq results (funcall e-merge results-exclusive-groups
+				      results '("file")))
+	       (unless (or (member "both" exports)
+			   (member "none" exports)
+			   (member "code" exports))
+		 (setq exports (funcall e-merge exports-exclusive-groups
+					exports '("results"))))
+	       (setq params (cons pair (assq-delete-all (car pair) params)))))
+	    (:exports
+	     (setq exports (funcall e-merge exports-exclusive-groups
+				    exports (split-string (cdr pair)))))
+	    (:tangle ;; take the latest -- always overwrite
+	     (setq tangle (or (list (cdr pair)) tangle)))
+	    (:noweb
+	     (setq noweb (funcall e-merge
+				  '(("yes" "no" "tangle" "no-export"
+				     "strip-export" "eval"))
+				  noweb
+				  (split-string (or (cdr pair) "")))))
+	    (:cache
+	     (setq cache (funcall e-merge '(("yes" "no")) cache
+				  (split-string (or (cdr pair) "")))))
+	    (:padline
+	     (setq padline (funcall e-merge '(("yes" "no")) padline
+				    (split-string (or (cdr pair) "")))))
+	    (:shebang ;; take the latest -- always overwrite
+	     (setq shebang (or (list (cdr pair)) shebang)))
+	    (:comments
+	     (setq comments (funcall e-merge '(("yes" "no")) comments
+				     (split-string (or (cdr pair) "")))))
+	    (t ;; replace: this covers e.g. :session
+	     (setq params (cons pair (assq-delete-all (car pair) params))))))
+	plist))
+     plists)
+    (setq vars (reverse vars))
+    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
+    (mapc
+     (lambda (hd)
+       (let ((key (intern (concat ":" (symbol-name hd))))
+	     (val (eval hd)))
+	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
+     '(results exports tangle noweb padline cache shebang comments))
+    params))
+
+(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
+  "Set to true to use regular expressions to expand noweb references.
+This results in much faster noweb reference expansion but does
+not properly allow code blocks to inherit the \":noweb-ref\"
+header argument from buffer or subtree wide properties.")
+
+(defun org-babel-noweb-p (params context)
+  "Check if PARAMS require expansion in CONTEXT.
+CONTEXT may be one of :tangle, :export or :eval."
+  (let* (intersect
+	 (intersect (lambda (as bs)
+		      (when as
+			(if (member (car as) bs)
+			    (car as)
+			  (funcall intersect (cdr as) bs))))))
+    (funcall intersect (case context
+			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
+			 (:eval   '("yes" "no-export" "strip-export" "eval"))
+			 (:export '("yes")))
+	     (split-string (or (cdr (assoc :noweb params)) "")))))
+
+(defun org-babel-expand-noweb-references (&optional info parent-buffer)
+  "Expand Noweb references in the body of the current source code block.
+
+For example the following reference would be replaced with the
+body of the source-code block named 'example-block'.
+
+<<example-block>>
+
+Note that any text preceding the <<foo>> construct on a line will
+be interposed between the lines of the replacement text.  So for
+example if <<foo>> is placed behind a comment, then the entire
+replacement text will also be commented.
+
+This function must be called from inside of the buffer containing
+the source-code block which holds BODY.
+
+In addition the following syntax can be used to insert the
+results of evaluating the source-code block named 'example-block'.
+
+<<example-block()>>
+
+Any optional arguments can be passed to example-block by placing
+the arguments inside the parenthesis following the convention
+defined by `org-babel-lob'.  For example
+
+<<example-block(a=9)>>
+
+would set the value of argument \"a\" equal to \"9\".  Note that
+these arguments are not evaluated in the current source-code
+block but are passed literally to the \"example-block\"."
+  (let* ((parent-buffer (or parent-buffer (current-buffer)))
+         (info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+	 (ob-nww-start org-babel-noweb-wrap-start)
+	 (ob-nww-end org-babel-noweb-wrap-end)
+	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
+	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
+			    ":noweb-ref[ \t]+" "\\)"))
+         (new-body "")
+	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
+	 (c-wrap (lambda (text)
+		   (with-temp-buffer
+		     (funcall (intern (concat lang "-mode")))
+		     (comment-region (point) (progn (insert text) (point)))
+		     (org-babel-trim (buffer-string)))))
+	 index source-name evaluate prefix blocks-in-buffer)
+    (with-temp-buffer
+      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
+      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
+      (insert body) (goto-char (point-min))
+      (setq index (point))
+      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
+	(save-match-data (setf source-name (match-string 1)))
+	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
+	(save-match-data
+	  (setq prefix
+		(buffer-substring (match-beginning 0)
+				  (save-excursion
+				    (beginning-of-line 1) (point)))))
+	;; add interval to new-body (removing noweb reference)
+	(goto-char (match-beginning 0))
+	(funcall nb-add (buffer-substring index (point)))
+	(goto-char (match-end 0))
+	(setq index (point))
+	(funcall nb-add
+		 (with-current-buffer parent-buffer
+		   (save-restriction
+		     (widen)
+		     (mapconcat ;; interpose PREFIX between every line
+		      #'identity
+		      (split-string
+		       (if evaluate
+			   (let ((raw (org-babel-ref-resolve source-name)))
+			     (if (stringp raw) raw (format "%S" raw)))
+			 (or
+			  ;; retrieve from the library of babel
+			  (nth 2 (assoc (intern source-name)
+					org-babel-library-of-babel))
+			  ;; return the contents of headlines literally
+			  (save-excursion
+			    (when (org-babel-ref-goto-headline-id source-name)
+			      (org-babel-ref-headline-body)))
+			  ;; find the expansion of reference in this buffer
+			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
+				expansion)
+			    (save-excursion
+			      (goto-char (point-min))
+			      (if org-babel-use-quick-and-dirty-noweb-expansion
+				  (while (re-search-forward rx nil t)
+				    (let* ((i (org-babel-get-src-block-info 'light))
+					   (body (org-babel-expand-noweb-references i))
+					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						    "\n"))
+					   (full (if comment
+						     ((lambda (cs)
+							(concat (funcall c-wrap (car cs)) "\n"
+								body "\n"
+								(funcall c-wrap (cadr cs))))
+						      (org-babel-tangle-comment-links i))
+						   body)))
+				      (setq expansion (cons sep (cons full expansion)))))
+				(org-babel-map-src-blocks nil
+				  (let ((i (org-babel-get-src-block-info 'light)))
+				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
+						     (nth 4 i))
+						 source-name)
+				      (let* ((body (org-babel-expand-noweb-references i))
+					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						      "\n"))
+					     (full (if comment
+						       ((lambda (cs)
+							  (concat (funcall c-wrap (car cs)) "\n"
+								  body "\n"
+								  (funcall c-wrap (cadr cs))))
+							(org-babel-tangle-comment-links i))
+						     body)))
+					(setq expansion
+					      (cons sep (cons full expansion)))))))))
+			    (and expansion
+				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
+			  ;; possibly raise an error if named block doesn't exist
+			  (if (member lang org-babel-noweb-error-langs)
+			      (error "%s" (concat
+					   (org-babel-noweb-wrap source-name)
+					   "could not be resolved (see "
+					   "`org-babel-noweb-error-langs')"))
+			    "")))
+		       "[\n\r]") (concat "\n" prefix))))))
+      (funcall nb-add (buffer-substring index (point-max))))
+    new-body))
+
+(defun org-babel-script-escape (str &optional force)
+  "Safely convert tables into elisp lists."
+  (let (in-single in-double out)
+    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
+     (if (or force
+	     (and (stringp str)
+		  (> (length str) 2)
+		  (or (and (string-equal "[" (substring str 0 1))
+			   (string-equal "]" (substring str -1)))
+		      (and (string-equal "{" (substring str 0 1))
+			   (string-equal "}" (substring str -1)))
+		      (and (string-equal "(" (substring str 0 1))
+			   (string-equal ")" (substring str -1))))))
+	 (org-babel-read
+	  (concat
+	   "'"
+	   (progn
+	     (mapc
+	      (lambda (ch)
+		(setq
+		 out
+		 (case ch
+		   (91 (if (or in-double in-single) ; [
+			   (cons 91 out)
+			 (cons 40 out)))
+		   (93 (if (or in-double in-single) ; ]
+			   (cons 93 out)
+			 (cons 41 out)))
+		   (123 (if (or in-double in-single) ; {
+			    (cons 123 out)
+			  (cons 40 out)))
+		   (125 (if (or in-double in-single) ; }
+			    (cons 125 out)
+			  (cons 41 out)))
+		   (44 (if (or in-double in-single) ; ,
+			   (cons 44 out) (cons 32 out)))
+		   (39 (if in-double	; '
+			   (cons 39 out)
+			 (setq in-single (not in-single)) (cons 34 out)))
+		   (34 (if in-single	; "
+			   (append (list 34 32) out)
+			 (setq in-double (not in-double)) (cons 34 out)))
+		   (t  (cons ch out)))))
+	      (string-to-list str))
+	     (apply #'string (reverse out)))))
+       str))))
+
+(defun org-babel-read (cell &optional inhibit-lisp-eval)
+  "Convert the string value of CELL to a number if appropriate.
+Otherwise if cell looks like lisp (meaning it starts with a
+\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
+return it unmodified as a string.  Optional argument NO-LISP-EVAL
+inhibits lisp evaluation for situations in which is it not
+appropriate."
+  (if (and (stringp cell) (not (equal cell "")))
+      (or (org-babel-number-p cell)
+          (if (and (not inhibit-lisp-eval)
+		   (member (substring cell 0 1) '("(" "'" "`" "[")))
+              (eval (read cell))
+            (if (string= (substring cell 0 1) "\"")
+		(read cell)
+	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
+    cell))
+
+(defun org-babel-number-p (string)
+  "If STRING represents a number return its value."
+  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
+           (= (length (substring string (match-beginning 0)
+				 (match-end 0)))
+	      (length string)))
+      (string-to-number string)))
+
+(defun org-babel-import-elisp-from-file (file-name &optional separator)
+  "Read the results located at FILE-NAME into an elisp table.
+If the table is trivial, then return it as a scalar."
+  (let (result)
+    (save-window-excursion
+      (with-temp-buffer
+	(condition-case err
+	    (progn
+	      (org-table-import file-name separator)
+	      (delete-file file-name)
+	      (setq result (mapcar (lambda (row)
+				     (mapcar #'org-babel-string-read row))
+				   (org-table-to-lisp))))
+	  (error (message "Error reading results: %s" err) nil)))
+      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
+	  (if (consp (car result))
+	      (if (null (cdr (car result)))
+		  (caar result)
+		result)
+	    (car result))
+	result))))
+
+(defun org-babel-string-read (cell)
+  "Strip nested \"s from around strings."
+  (org-babel-read (or (and (stringp cell)
+                           (string-match "\\\"\\(.+\\)\\\"" cell)
+                           (match-string 1 cell))
+                      cell) t))
+
+(defun org-babel-reverse-string (string)
+  "Return the reverse of STRING."
+  (apply 'string (reverse (string-to-list string))))
+
+(defun org-babel-chomp (string &optional regexp)
+  "Strip trailing spaces and carriage returns from STRING.
+Default regexp used is \"[ \f\t\n\r\v]\" but can be
+overwritten by specifying a regexp as a second argument."
+  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
+    (while (and (> (length string) 0)
+                (string-match regexp (substring string -1)))
+      (setq string (substring string 0 -1)))
+    string))
+
+(defun org-babel-trim (string &optional regexp)
+  "Strip leading and trailing spaces and carriage returns from STRING.
+Like `org-babel-chomp' only it runs on both the front and back
+of the string."
+  (org-babel-chomp (org-babel-reverse-string
+                    (org-babel-chomp (org-babel-reverse-string string) regexp))
+                   regexp))
+
+(defvar org-babel-org-babel-call-process-region-original nil)
+(defun org-babel-tramp-handle-call-process-region
+  (start end program &optional delete buffer display &rest args)
+  "Use Tramp to handle `call-process-region'.
+Fixes a bug in `tramp-handle-call-process-region'."
+  (if (and (featurep 'tramp) (file-remote-p default-directory))
+      (let ((tmpfile (tramp-compat-make-temp-file "")))
+	(write-region start end tmpfile)
+	(when delete (delete-region start end))
+	(unwind-protect
+	    ;;	(apply 'call-process program tmpfile buffer display args)
+            ;; bug in tramp
+	    (apply 'process-file program tmpfile buffer display args)
+	  (delete-file tmpfile)))
+    ;; org-babel-call-process-region-original is the original emacs
+    ;; definition.  It is in scope from the let binding in
+    ;; org-babel-execute-src-block
+    (apply org-babel-call-process-region-original
+           start end program delete buffer display args)))
+
+(defun org-babel-local-file-name (file)
+  "Return the local name component of FILE."
+  (if (file-remote-p file)
+      (let (localname)
+	(with-parsed-tramp-file-name file nil
+				     localname))
+    file))
+
+(defun org-babel-process-file-name (name &optional no-quote-p)
+  "Prepare NAME to be used in an external process.
+If NAME specifies a remote location, the remote portion of the
+name is removed, since in that case the process will be executing
+remotely.  The file name is then processed by `expand-file-name'.
+Unless second argument NO-QUOTE-P is non-nil, the file name is
+additionally processed by `shell-quote-argument'"
+  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
+   (expand-file-name (org-babel-local-file-name name))))
+
+(defvar org-babel-temporary-directory)
+(unless (or noninteractive (boundp 'org-babel-temporary-directory))
+  (defvar org-babel-temporary-directory
+    (or (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory)
+	     org-babel-temporary-directory)
+	(make-temp-file "babel-" t))
+    "Directory to hold temporary files created to execute code blocks.
+Used by `org-babel-temp-file'.  This directory will be removed on
+Emacs shutdown."))
+
+(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
+  "Call the code to parse raw string results according to RESULT-PARAMS."
+  (declare (indent 1))
+  `(unless (member "none" ,result-params)
+     (if (or (member "scalar" ,result-params)
+	     (member "verbatim" ,result-params)
+	     (member "html" ,result-params)
+	     (member "code" ,result-params)
+	     (member "pp" ,result-params)
+	     (and (member "output" ,result-params)
+		  (not (member "table" ,result-params))))
+	 ,scalar-form
+       ,@table-forms)))
+
+(defun org-babel-temp-file (prefix &optional suffix)
+  "Create a temporary file in the `org-babel-temporary-directory'.
+Passes PREFIX and SUFFIX directly to `make-temp-file' with the
+value of `temporary-file-directory' temporarily set to the value
+of `org-babel-temporary-directory'."
+  (if (file-remote-p default-directory)
+      (make-temp-file
+       (concat (file-remote-p default-directory)
+	       (expand-file-name
+		prefix temporary-file-directory)
+	       nil suffix))
+    (let ((temporary-file-directory
+	   (or (and (boundp 'org-babel-temporary-directory)
+		    (file-exists-p org-babel-temporary-directory)
+		    org-babel-temporary-directory)
+	       temporary-file-directory)))
+      (make-temp-file prefix nil suffix))))
+
+(defun org-babel-remove-temporary-directory ()
+  "Remove `org-babel-temporary-directory' on Emacs shutdown."
+  (when (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory))
+    ;; taken from `delete-directory' in files.el
+    (condition-case nil
+	(progn
+	  (mapc (lambda (file)
+		  ;; This test is equivalent to
+		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
+		  ;; but more efficient
+		  (if (eq t (car (file-attributes file)))
+		      (delete-directory file)
+		    (delete-file file)))
+		;; We do not want to delete "." and "..".
+		(directory-files org-babel-temporary-directory 'full
+				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
+	  (delete-directory org-babel-temporary-directory))
+      (error
+       (message "Failed to remove temporary Org-babel directory %s"
+		(if (boundp 'org-babel-temporary-directory)
+		    org-babel-temporary-directory
+		  "[directory not defined]"))))))
+
+(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
+
+;;; ob-lob.el
+
+(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
+
+(defvar org-babel-library-of-babel nil
+  "Library of source-code blocks.
+This is an association list.  Populate the library by adding
+files to `org-babel-lob-files'.")
+
+(defcustom org-babel-lob-files '()
+  "Files used to populate the `org-babel-library-of-babel'.
+To add files to this list use the `org-babel-lob-ingest' command."
+  :group 'org-babel
+  :version "24.1"
+  :type 'list)
+
+(defvar org-babel-default-lob-header-args '((:exports . "results"))
+  "Default header arguments to use when exporting #+lob/call lines.")
+
+(defun org-babel-lob-ingest (&optional file)
+  "Add all named source-blocks defined in FILE to
+`org-babel-library-of-babel'."
+  (interactive "fFile: ")
+  (let ((lob-ingest-count 0))
+    (org-babel-map-src-blocks file
+      (let* ((info (org-babel-get-src-block-info 'light))
+	     (source-name (nth 4 info)))
+	(when source-name
+	  (setq source-name (intern source-name)
+		org-babel-library-of-babel
+		(cons (cons source-name info)
+		      (assq-delete-all source-name org-babel-library-of-babel))
+		lob-ingest-count (1+ lob-ingest-count)))))
+    (message "%d src block%s added to Library of Babel"
+	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
+    lob-ingest-count))
+
+(defconst org-babel-block-lob-one-liner-regexp
+  (concat
+   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
+  "Regexp to match non-inline calls to predefined source block functions.")
+
+(defconst org-babel-inline-lob-one-liner-regexp
+  (concat
+   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
+  "Regexp to match inline calls to predefined source block functions.")
+
+(defconst org-babel-lob-one-liner-regexp
+  (concat "\\(" org-babel-block-lob-one-liner-regexp
+	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
+  "Regexp to match calls to predefined source block functions.")
+
+;; functions for executing lob one-liners
+
+;;;###autoload
+(defun org-babel-lob-execute-maybe ()
+  "Execute a Library of Babel source block, if appropriate.
+Detect if this is context for a Library Of Babel source block and
+if so then run the appropriate source block from the Library."
+  (interactive)
+  (let ((info (org-babel-lob-get-info)))
+    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
+	(progn (org-babel-lob-execute info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-lob-get-info ()
+  "Return a Library of Babel function call as a string."
+  (let ((case-fold-search t)
+	(nonempty (lambda (a b)
+		    (let ((it (match-string a)))
+		      (if (= (length it) 0) (match-string b) it)))))
+    (save-excursion
+      (beginning-of-line 1)
+      (when (looking-at org-babel-lob-one-liner-regexp)
+	(append
+	 (mapcar #'org-no-properties
+		 (list
+		  (format "%s%s(%s)%s"
+			  (funcall nonempty 3 12)
+			  (if (not (= 0 (length (funcall nonempty 5 14))))
+			      (concat "[" (funcall nonempty 5 14) "]") "")
+			  (or (funcall nonempty 7 16) "")
+			  (or (funcall nonempty 8 19) ""))
+		  (funcall nonempty 9 18)))
+	 (list (length (if (= (length (match-string 12)) 0)
+			   (match-string 2) (match-string 11)))))))))
+
+(defun org-babel-lob-execute (info)
+  "Execute the lob call specified by INFO."
+  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
+	 (pre-params (org-babel-merge-params
+		      org-babel-default-header-args
+		      (org-babel-params-from-properties)
+		      (org-babel-parse-header-arguments
+		       (org-no-properties
+			(concat ":var results="
+				(mapconcat #'identity (butlast info) " "))))))
+	 (pre-info (funcall mkinfo pre-params))
+	 (cache? (and (cdr (assoc :cache pre-params))
+		      (string= "yes" (cdr (assoc :cache pre-params)))))
+	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
+	 (old-hash (when cache? (org-babel-current-result-hash))))
+    (if (and cache? (equal new-hash old-hash))
+	(save-excursion (goto-char (org-babel-where-is-src-block-result))
+			(forward-line 1)
+			(message "%S" (org-babel-read-result)))
+      (prog1 (org-babel-execute-src-block
+	      nil (funcall mkinfo (org-babel-process-params pre-params)))
+	;; update the hash
+	(when new-hash (org-babel-set-current-result-hash new-hash))))))
+
+(declare-function org-link-escape "org" (text &optional table))
+(declare-function org-heading-components "org" ())
+(declare-function org-back-to-heading "org" (invisible-ok))
+(declare-function org-fill-template "org" (template alist))
+(declare-function org-babel-update-block-body "org" (new-body))
+(declare-function make-directory "files" (dir &optional parents))
+
+(defcustom org-babel-tangle-lang-exts
+  '(("emacs-lisp" . "el"))
+  "Alist mapping languages to their file extensions.
+The key is the language name, the value is the string that should
+be inserted as the extension commonly used to identify files
+written in this language.  If no entry is found in this list,
+then the name of the language is used."
+  :group 'org-babel-tangle
+  :version "24.1"
+  :type '(repeat
+	  (cons
+	   (string "Language name")
+	   (string "File Extension"))))
+
+(defcustom org-babel-post-tangle-hook nil
+  "Hook run in code files tangled by `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-pre-tangle-hook '(save-buffer)
+  "Hook run at the beginning of `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-body-hook nil
+  "Hook run over the contents of each code block body."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-process-comment-text #'org-babel-trim
+  "Function called to process raw Org-mode text collected to be
+inserted as comments in tangled source-code files.  The function
+should take a single string argument and return a string
+result.  The default value is `org-babel-trim'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'function)
+
+(defun org-babel-find-file-noselect-refresh (file)
+  "Find file ensuring that the latest changes on disk are
+represented in the file."
+  (find-file-noselect file)
+  (with-current-buffer (get-file-buffer file)
+    (revert-buffer t t t)))
+
+(defmacro org-babel-with-temp-filebuffer (file &rest body)
+  "Open FILE into a temporary buffer execute BODY there like
+`progn', then kill the FILE buffer returning the result of
+evaluating BODY."
+  (declare (indent 1))
+  (let ((temp-path (make-symbol "temp-path"))
+	(temp-result (make-symbol "temp-result"))
+	(temp-file (make-symbol "temp-file"))
+	(visited-p (make-symbol "visited-p")))
+    `(let* ((,temp-path ,file)
+	    (,visited-p (get-file-buffer ,temp-path))
+	    ,temp-result ,temp-file)
+       (org-babel-find-file-noselect-refresh ,temp-path)
+       (setf ,temp-file (get-file-buffer ,temp-path))
+       (with-current-buffer ,temp-file
+	 (setf ,temp-result (progn ,@body)))
+       (unless ,visited-p (kill-buffer ,temp-file))
+       ,temp-result)))
+(def-edebug-spec org-babel-with-temp-filebuffer (form body))
+
+;;;###autoload
+(defun org-babel-load-file (file &optional compile)
+  "Load Emacs Lisp source code blocks in the Org-mode FILE.
+This function exports the source code using `org-babel-tangle'
+and then loads the resulting file using `load-file'.  With prefix
+arg (noninteractively: 2nd arg) COMPILE the tangled Emacs Lisp
+file to byte-code before it is loaded."
+  (interactive "fFile to load: \nP")
+  (let* ((age (lambda (file)
+		(float-time
+		 (time-subtract (current-time)
+				(nth 5 (or (file-attributes (file-truename file))
+					   (file-attributes file)))))))
+	 (base-name (file-name-sans-extension file))
+	 (exported-file (concat base-name ".el")))
+    ;; tangle if the org-mode file is newer than the elisp file
+    (unless (and (file-exists-p exported-file)
+		 (> (funcall age file) (funcall age exported-file)))
+      (org-babel-tangle-file file exported-file "emacs-lisp"))
+    (message "%s %s"
+	     (if compile
+		 (progn (byte-compile-file exported-file 'load)
+			"Compiled and loaded")
+	       (progn (load-file exported-file) "Loaded"))
+	     exported-file)))
+
+;;;###autoload
+(defun org-babel-tangle-file (file &optional target-file lang)
+  "Extract the bodies of source code blocks in FILE.
+Source code blocks are extracted with `org-babel-tangle'.
+Optional argument TARGET-FILE can be used to specify a default
+export file for all source blocks.  Optional argument LANG can be
+used to limit the exported source code blocks by language."
+  (interactive "fFile to tangle: \nP")
+  (let ((visited-p (get-file-buffer (expand-file-name file)))
+	to-be-removed)
+    (save-window-excursion
+      (find-file file)
+      (setq to-be-removed (current-buffer))
+      (org-babel-tangle nil target-file lang))
+    (unless visited-p
+      (kill-buffer to-be-removed))))
+
+(defun org-babel-tangle-publish (_ filename pub-dir)
+  "Tangle FILENAME and place the results in PUB-DIR."
+  (mapc (lambda (el) (copy-file el pub-dir t)) (org-babel-tangle-file filename)))
+
+;;;###autoload
+(defun org-babel-tangle (&optional only-this-block target-file lang)
+  "Write code blocks to source-specific files.
+Extract the bodies of all source code blocks from the current
+file into their own source-specific files.  Optional argument
+TARGET-FILE can be used to specify a default export file for all
+source blocks.  Optional argument LANG can be used to limit the
+exported source code blocks by language."
+  (interactive "P")
+  (run-hooks 'org-babel-pre-tangle-hook)
+  ;; possibly restrict the buffer to the current code block
+  (save-restriction
+    (when only-this-block
+      (unless (org-babel-where-is-src-block-head)
+	(error "Point is not currently inside of a code block"))
+      (save-match-data
+	(unless (or (cdr (assoc :tangle (nth 2 (org-babel-get-src-block-info))))
+		    target-file)
+	  (setq target-file
+		(read-from-minibuffer "Tangle to: " (buffer-file-name)))))
+      (narrow-to-region (match-beginning 0) (match-end 0)))
+    (save-excursion
+      (let ((block-counter 0)
+	    (org-babel-default-header-args
+	     (if target-file
+		 (org-babel-merge-params org-babel-default-header-args
+					 (list (cons :tangle target-file)))
+	       org-babel-default-header-args))
+	    path-collector)
+	(mapc ;; map over all languages
+	 (lambda (by-lang)
+	   (let* ((lang (car by-lang))
+		  (specs (cdr by-lang))
+		  (ext (or (cdr (assoc lang org-babel-tangle-lang-exts)) lang))
+		  (lang-f (intern
+			   (concat
+			    (or (and (cdr (assoc lang org-src-lang-modes))
+				     (symbol-name
+				      (cdr (assoc lang org-src-lang-modes))))
+				lang)
+			    "-mode")))
+		  she-banged)
+	     (mapc
+	      (lambda (spec)
+		(let ((get-spec (lambda (name) (cdr (assoc name (nth 4 spec))))))
+		  (let* ((tangle (funcall get-spec :tangle))
+			 (she-bang ((lambda (sheb) (when (> (length sheb) 0) sheb))
+				    (funcall get-spec :shebang)))
+			 (base-name (cond
+				     ((string= "yes" tangle)
+				      (file-name-sans-extension
+				       (buffer-file-name)))
+				     ((string= "no" tangle) nil)
+				     ((> (length tangle) 0) tangle)))
+			 (file-name (when base-name
+				      ;; decide if we want to add ext to base-name
+				      (if (and ext (string= "yes" tangle))
+					  (concat base-name "." ext) base-name))))
+		    (when file-name
+		      ;; possibly create the parent directories for file
+		      (when ((lambda (m) (and m (not (string= m "no"))))
+			     (funcall get-spec :mkdirp))
+			(make-directory (file-name-directory file-name) 'parents))
+		      ;; delete any old versions of file
+		      (when (and (file-exists-p file-name)
+				 (not (member file-name path-collector)))
+			(delete-file file-name))
+		      ;; drop source-block to file
+		      (with-temp-buffer
+			(when (fboundp lang-f) (ignore-errors (funcall lang-f)))
+			(when (and she-bang (not (member file-name she-banged)))
+			  (insert (concat she-bang "\n"))
+			  (setq she-banged (cons file-name she-banged)))
+			(org-babel-spec-to-string spec)
+			;; We avoid append-to-file as it does not work with tramp.
+			(let ((content (buffer-string)))
+			  (with-temp-buffer
+			    (if (file-exists-p file-name)
+				(insert-file-contents file-name))
+			    (goto-char (point-max))
+			    (insert content)
+			    (write-region nil nil file-name))))
+		      (set-file-modes
+		       file-name
+		       ;; never writable (don't accidentally edit tangled files)
+		       (if she-bang
+			   #o555 ;; files with she-bangs should be executable
+			 #o444)) ;; those without should not
+		      ;; update counter
+		      (setq block-counter (+ 1 block-counter))
+		      (add-to-list 'path-collector file-name)))))
+	      specs)))
+	 (org-babel-tangle-collect-blocks lang))
+	(message "Tangled %d code block%s from %s" block-counter
+		 (if (= block-counter 1) "" "s")
+		 (file-name-nondirectory
+		  (buffer-file-name (or (buffer-base-buffer) (current-buffer)))))
+	;; run `org-babel-post-tangle-hook' in all tangled files
+	(when org-babel-post-tangle-hook
+	  (mapc
+	   (lambda (file)
+	     (org-babel-with-temp-filebuffer file
+	       (run-hooks 'org-babel-post-tangle-hook)))
+	   path-collector))
+	path-collector))))
+
+(defun org-babel-tangle-clean ()
+  "Remove comments inserted by `org-babel-tangle'.
+Call this function inside of a source-code file generated by
+`org-babel-tangle' to remove all comments inserted automatically
+by `org-babel-tangle'.  Warning, this comment removes any lines
+containing constructs which resemble org-mode file links or noweb
+references."
+  (interactive)
+  (goto-char (point-min))
+  (while (or (re-search-forward "\\[\\[file:.*\\]\\[.*\\]\\]" nil t)
+             (re-search-forward (org-babel-noweb-wrap) nil t))
+    (delete-region (save-excursion (beginning-of-line 1) (point))
+                   (save-excursion (end-of-line 1) (forward-char 1) (point)))))
+
+(defvar org-stored-links)
+(defvar org-bracket-link-regexp)
+(defun org-babel-spec-to-string (spec)
+  "Insert SPEC into the current file.
+Insert the source-code specified by SPEC into the current
+source code file.  This function uses `comment-region' which
+assumes that the appropriate major-mode is set.  SPEC has the
+form
+
+  (start-line file link source-name params body comment)"
+  (let* ((start-line (nth 0 spec))
+	 (file (nth 1 spec))
+	 (link (nth 2 spec))
+	 (source-name (nth 3 spec))
+	 (body (nth 5 spec))
+	 (comment (nth 6 spec))
+	 (comments (cdr (assoc :comments (nth 4 spec))))
+	 (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec))))))
+	 (link-p (or (string= comments "both") (string= comments "link")
+		     (string= comments "yes") (string= comments "noweb")))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name)))
+	 (insert-comment (lambda (text)
+			   (when (and comments (not (string= comments "no"))
+				      (> (length text) 0))
+			     (when padline (insert "\n"))
+			     (comment-region (point) (progn (insert text) (point)))
+			     (end-of-line nil) (insert "\n")))))
+    (when comment (funcall insert-comment comment))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-beg link-data)))
+    (when padline (insert "\n"))
+    (insert
+     (format
+      "%s\n"
+      (replace-regexp-in-string
+       "^," ""
+       (org-babel-trim body (if org-src-preserve-indentation "[\f\n\r\v]")))))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-end link-data)))))
+
+(defun org-babel-tangle-collect-blocks (&optional language)
+  "Collect source blocks in the current Org-mode file.
+Return an association list of source-code block specifications of
+the form used by `org-babel-spec-to-string' grouped by language.
+Optional argument LANG can be used to limit the collected source
+code blocks by language."
+  (let ((block-counter 1) (current-heading "") blocks)
+    (org-babel-map-src-blocks (buffer-file-name)
+      ((lambda (new-heading)
+	 (if (not (string= new-heading current-heading))
+	     (progn
+	       (setq block-counter 1)
+	       (setq current-heading new-heading))
+	   (setq block-counter (+ 1 block-counter))))
+       (replace-regexp-in-string "[ \t]" "-"
+				 (condition-case nil
+				     (or (nth 4 (org-heading-components))
+					 "(dummy for heading without text)")
+				   (error (buffer-file-name)))))
+      (let* ((start-line (save-restriction (widen)
+					   (+ 1 (line-number-at-pos (point)))))
+	     (file (buffer-file-name))
+	     (info (org-babel-get-src-block-info 'light))
+	     (src-lang (nth 0 info)))
+        (unless (string= (cdr (assoc :tangle (nth 2 info))) "no")
+          (unless (and language (not (string= language src-lang)))
+	    (let* ((info (org-babel-get-src-block-info))
+		   (params (nth 2 info))
+		   (link ((lambda (link)
+			    (and (string-match org-bracket-link-regexp link)
+				 (match-string 1 link)))
+			  (org-no-properties
+			   (org-store-link nil))))
+		   (source-name
+		    (intern (or (nth 4 info)
+				(format "%s:%d"
+					current-heading block-counter))))
+		   (expand-cmd
+		    (intern (concat "org-babel-expand-body:" src-lang)))
+		   (assignments-cmd
+		    (intern (concat "org-babel-variable-assignments:" src-lang)))
+		   (body
+		    ((lambda (body) ;; run the tangle-body-hook
+		       (with-temp-buffer
+			 (insert body)
+			 (run-hooks 'org-babel-tangle-body-hook)
+			 (buffer-string)))
+		     ((lambda (body) ;; expand the body in language specific manner
+			(if (assoc :no-expand params)
+			    body
+			  (if (fboundp expand-cmd)
+			      (funcall expand-cmd body params)
+			    (org-babel-expand-body:generic
+			     body params
+			     (and (fboundp assignments-cmd)
+				  (funcall assignments-cmd params))))))
+		      (if (org-babel-noweb-p params :tangle)
+			  (org-babel-expand-noweb-references info)
+			(nth 1 info)))))
+		   (comment
+		    (when (or (string= "both" (cdr (assoc :comments params)))
+			      (string= "org" (cdr (assoc :comments params))))
+		      ;; from the previous heading or code-block end
+		      (funcall
+		       org-babel-process-comment-text
+		       (buffer-substring
+			(max (condition-case nil
+				 (save-excursion
+				   (org-back-to-heading t)  ; sets match data
+				   (match-end 0))
+			       (error (point-min)))
+			     (save-excursion
+			       (if (re-search-backward
+				    org-babel-src-block-regexp nil t)
+				   (match-end 0)
+				 (point-min))))
+			(point)))))
+		   by-lang)
+	      ;; add the spec for this block to blocks under it's language
+	      (setq by-lang (cdr (assoc src-lang blocks)))
+	      (setq blocks (delq (assoc src-lang blocks) blocks))
+	      (setq blocks (cons
+			    (cons src-lang
+				  (cons (list start-line file link
+					      source-name params body comment)
+					by-lang)) blocks)))))))
+    ;; ensure blocks in the correct order
+    (setq blocks
+          (mapcar
+	   (lambda (by-lang) (cons (car by-lang) (reverse (cdr by-lang))))
+	   blocks))
+    blocks))
+
+(defun org-babel-tangle-comment-links ( &optional info)
+  "Return a list of begin and end link comments for the code block at point."
+  (let* ((start-line (org-babel-where-is-src-block-head))
+	 (file (buffer-file-name))
+	 (link (org-link-escape (progn (call-interactively 'org-store-link)
+				       (org-no-properties
+					(car (pop org-stored-links))))))
+	 (source-name (nth 4 (or info (org-babel-get-src-block-info 'light))))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name))))
+    (list (org-fill-template org-babel-tangle-comment-format-beg link-data)
+	  (org-fill-template org-babel-tangle-comment-format-end link-data))))
+
+;; de-tangling functions
+(defvar org-bracket-link-analytic-regexp)
+(defun org-babel-detangle (&optional source-code-file)
+  "Propagate changes in source file back original to Org-mode file.
+This requires that code blocks were tangled with link comments
+which enable the original code blocks to be found."
+  (interactive)
+  (save-excursion
+    (when source-code-file (find-file source-code-file))
+    (goto-char (point-min))
+    (let ((counter 0) new-body end)
+      (while (re-search-forward org-bracket-link-analytic-regexp nil t)
+        (when (re-search-forward
+	       (concat " " (regexp-quote (match-string 5)) " ends here"))
+          (setq end (match-end 0))
+          (forward-line -1)
+          (save-excursion
+	    (when (setq new-body (org-babel-tangle-jump-to-org))
+	      (org-babel-update-block-body new-body)))
+          (setq counter (+ 1 counter)))
+        (goto-char end))
+      (prog1 counter (message "Detangled %d code blocks" counter)))))
+
+(defun org-babel-tangle-jump-to-org ()
+  "Jump from a tangled code file to the related Org-mode file."
+  (interactive)
+  (let ((mid (point))
+	start end done
+        target-buffer target-char link path block-name body)
+    (save-window-excursion
+      (save-excursion
+	(while (and (re-search-backward org-bracket-link-analytic-regexp nil t)
+		    (not ; ever wider searches until matching block comments
+		     (and (setq start (point-at-eol))
+			  (setq link (match-string 0))
+			  (setq path (match-string 3))
+			  (setq block-name (match-string 5))
+			  (save-excursion
+			    (save-match-data
+			      (re-search-forward
+			       (concat " " (regexp-quote block-name)
+				       " ends here") nil t)
+			      (setq end (point-at-bol))))))))
+	(unless (and start (< start mid) (< mid end))
+	  (error "Not in tangled code"))
+        (setq body (org-babel-trim (buffer-substring start end))))
+      (when (string-match "::" path)
+        (setq path (substring path 0 (match-beginning 0))))
+      (find-file path) (setq target-buffer (current-buffer))
+      (goto-char start) (org-open-link-from-string link)
+      (if (string-match "[^ \t\n\r]:\\([[:digit:]]+\\)" block-name)
+          (org-babel-next-src-block
+           (string-to-number (match-string 1 block-name)))
+        (org-babel-goto-named-src-block block-name))
+      (setq target-char (point)))
+    (pop-to-buffer target-buffer)
+    (prog1 body (goto-char target-char))))
+
+;;; ob-comint.el
+
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function tramp-flush-directory-property "tramp" (vec directory))
+
+(defun org-babel-comint-buffer-livep (buffer)
+  "Check if BUFFER is a comint buffer with a live process."
+  (let ((buffer (if buffer (get-buffer buffer))))
+    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
+
+(defmacro org-babel-comint-in-buffer (buffer &rest body)
+  "Check BUFFER and execute BODY.
+BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
+executed inside the protection of `save-excursion' and
+`save-match-data'."
+  (declare (indent 1))
+  `(save-excursion
+     (save-match-data
+       (unless (org-babel-comint-buffer-livep ,buffer)
+         (error "Buffer %s does not exist or has no process" ,buffer))
+       (set-buffer ,buffer)
+       ,@body)))
+(def-edebug-spec org-babel-comint-in-buffer (form body))
+
+(defmacro org-babel-comint-with-output (meta &rest body)
+  "Evaluate BODY in BUFFER and return process output.
+Will wait until EOE-INDICATOR appears in the output, then return
+all process output.  If REMOVE-ECHO and FULL-BODY are present and
+non-nil, then strip echo'd body from the returned output.  META
+should be a list containing the following where the last two
+elements are optional.
+
+ (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
+
+This macro ensures that the filter is removed in case of an error
+or user `keyboard-quit' during execution of body."
+  (declare (indent 1))
+  (let ((buffer (car meta))
+	(eoe-indicator (cadr meta))
+	(remove-echo (cadr (cdr meta)))
+	(full-body (cadr (cdr (cdr meta)))))
+    `(org-babel-comint-in-buffer ,buffer
+       (let ((string-buffer "") dangling-text raw)
+	 ;; setup filter
+	 (setq comint-output-filter-functions
+	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
+		     comint-output-filter-functions))
+	 (unwind-protect
+	     (progn
+	       ;; got located, and save dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (let ((start (point))
+		     (end (point-max)))
+		 (setq dangling-text (buffer-substring start end))
+		 (delete-region start end))
+	       ;; pass FULL-BODY to process
+	       ,@body
+	       ;; wait for end-of-evaluation indicator
+	       (while (progn
+			(goto-char comint-last-input-end)
+			(not (save-excursion
+			       (and (re-search-forward
+				     (regexp-quote ,eoe-indicator) nil t)
+				    (re-search-forward
+				     comint-prompt-regexp nil t)))))
+		 (accept-process-output (get-buffer-process (current-buffer)))
+		 ;; thought the following this would allow async
+		 ;; background running, but I was wrong...
+		 ;; (run-with-timer .5 .5 'accept-process-output
+		 ;; 		 (get-buffer-process (current-buffer)))
+		 )
+	       ;; replace cut dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (insert dangling-text))
+	   ;; remove filter
+	   (setq comint-output-filter-functions
+		 (cdr comint-output-filter-functions)))
+	 ;; remove echo'd FULL-BODY from input
+	 (if (and ,remove-echo ,full-body
+		  (string-match
+		   (replace-regexp-in-string
+		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
+		   string-buffer))
+	     (setq raw (substring string-buffer (match-end 0))))
+	 (split-string string-buffer comint-prompt-regexp)))))
+(def-edebug-spec org-babel-comint-with-output (form body))
+
+(defun org-babel-comint-input-command (buffer cmd)
+  "Pass CMD to BUFFER.
+The input will not be echoed."
+  (org-babel-comint-in-buffer buffer
+    (goto-char (process-mark (get-buffer-process buffer)))
+    (insert cmd)
+    (comint-send-input)
+    (org-babel-comint-wait-for-output buffer)))
+
+(defun org-babel-comint-wait-for-output (buffer)
+  "Wait until output arrives from BUFFER.
+Note: this is only safe when waiting for the result of a single
+statement (not large blocks of code)."
+  (org-babel-comint-in-buffer buffer
+    (while (progn
+             (goto-char comint-last-input-end)
+             (not (and (re-search-forward comint-prompt-regexp nil t)
+                       (goto-char (match-beginning 0))
+                       (string= (face-name (face-at-point))
+                                "comint-highlight-prompt"))))
+      (accept-process-output (get-buffer-process buffer)))))
+
+(defun org-babel-comint-eval-invisibly-and-wait-for-file
+  (buffer file string &optional period)
+  "Evaluate STRING in BUFFER invisibly.
+Don't return until FILE exists.  Code in STRING must ensure that
+FILE exists at end of evaluation."
+  (unless (org-babel-comint-buffer-livep buffer)
+    (error "Buffer %s does not exist or has no process" buffer))
+  (if (file-exists-p file) (delete-file file))
+  (process-send-string
+   (get-buffer-process buffer)
+   (if (string-match "\n$" string) string (concat string "\n")))
+  ;; From Tramp 2.1.19 the following cache flush is not necessary
+  (if (file-remote-p default-directory)
+      (let (v)
+	(with-parsed-tramp-file-name default-directory nil
+				     (tramp-flush-directory-property v ""))))
+  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
+
+;;; ob-ref
+
+(declare-function org-remove-if-not "org" (predicate seq))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-count "org" (CL-ITEM CL-SEQ))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
+(declare-function org-id-find-id-file "org-id" (id))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-pop-to-buffer-same-window
+		  "org-compat" (&optional buffer-or-name norecord label))
+
+(defvar org-babel-ref-split-regexp
+  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
+
+(defvar org-babel-update-intermediate nil
+  "Update the in-buffer results of code blocks executed to resolve references.")
+
+(defun org-babel-ref-parse (assignment)
+  "Parse a variable ASSIGNMENT in a header argument.
+If the right hand side of the assignment has a literal value
+return that value, otherwise interpret as a reference to an
+external resource and find its value using
+`org-babel-ref-resolve'.  Return a list with two elements.  The
+first element of the list will be the name of the variable, and
+the second will be an emacs-lisp representation of the value of
+the variable."
+  (when (string-match org-babel-ref-split-regexp assignment)
+    (let ((var (match-string 1 assignment))
+	  (ref (match-string 2 assignment)))
+      (cons (intern var)
+	    (let ((out (org-babel-read ref)))
+	      (if (equal out ref)
+		  (if (string-match "^\".*\"$" ref)
+		      (read ref)
+		    (org-babel-ref-resolve ref))
+		out))))))
+
+(defun org-babel-ref-goto-headline-id (id)
+  (goto-char (point-min))
+  (let ((rx (regexp-quote id)))
+    (or (re-search-forward
+	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
+	(let* ((file (org-id-find-id-file id))
+	       (m (when file (org-id-find-id-in-file id file 'marker))))
+	  (when (and file m)
+	    (message "file:%S" file)
+	    (org-pop-to-buffer-same-window (marker-buffer m))
+	    (goto-char m)
+	    (move-marker m nil)
+	    (org-show-context)
+	    t)))))
+
+(defun org-babel-ref-headline-body ()
+  (save-restriction
+    (org-narrow-to-subtree)
+    (buffer-substring
+     (save-excursion (goto-char (point-min))
+		     (forward-line 1)
+		     (when (looking-at "[ \t]*:PROPERTIES:")
+		       (re-search-forward ":END:" nil)
+		       (forward-char))
+		     (point))
+     (point-max))))
+
+(defvar org-babel-library-of-babel)
+(defun org-babel-ref-resolve (ref)
+  "Resolve the reference REF and return its value."
+  (save-window-excursion
+    (save-excursion
+      (let ((case-fold-search t)
+	    type args new-refere new-header-args new-referent result
+	    lob-info split-file split-ref index index-row index-col id)
+	;; if ref is indexed grab the indices -- beware nested indices
+	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
+		   (let ((str (substring ref 0 (match-beginning 0))))
+		     (= (org-count ?( str) (org-count ?) str))))
+	  (setq index (match-string 1 ref))
+	  (setq ref (substring ref 0 (match-beginning 0))))
+	;; assign any arguments to pass to source block
+	(when (string-match
+	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
+	  (setq new-refere      (match-string 1 ref))
+	  (setq new-header-args (match-string 3 ref))
+	  (setq new-referent    (match-string 5 ref))
+	  (when (> (length new-refere) 0)
+	    (when (> (length new-referent) 0)
+	      (setq args (mapcar (lambda (ref) (cons :var ref))
+				 (org-babel-ref-split-args new-referent))))
+	    (when (> (length new-header-args) 0)
+	      (setq args (append (org-babel-parse-header-arguments
+				  new-header-args) args)))
+	    (setq ref new-refere)))
+	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
+	  (setq split-file (match-string 1 ref))
+	  (setq split-ref (match-string 2 ref))
+	  (find-file split-file) (setq ref split-ref))
+	(save-restriction
+	  (widen)
+	  (goto-char (point-min))
+	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
+		    (res-rx (org-babel-named-data-regexp-for-name ref)))
+		;; goto ref in the current buffer
+		(or
+		 ;; check for code blocks
+		 (re-search-forward src-rx nil t)
+		 ;; check for named data
+		 (re-search-forward res-rx nil t)
+		 ;; check for local or global headlines by id
+		 (setq id (org-babel-ref-goto-headline-id ref))
+		 ;; check the Library of Babel
+		 (setq lob-info (cdr (assoc (intern ref)
+					    org-babel-library-of-babel)))))
+	      (unless (or lob-info id) (goto-char (match-beginning 0)))
+	    ;; ;; TODO: allow searching for names in other buffers
+	    ;; (setq id-loc (org-id-find ref 'marker)
+	    ;;       buffer (marker-buffer id-loc)
+	    ;;       loc (marker-position id-loc))
+	    ;; (move-marker id-loc nil)
+	    (error "Reference '%s' not found in this buffer" ref))
+	  (cond
+	   (lob-info (setq type 'lob))
+	   (id (setq type 'id))
+	   ((and (looking-at org-babel-src-name-regexp)
+		 (save-excursion
+		   (forward-line 1)
+		   (or (looking-at org-babel-src-block-regexp)
+		       (looking-at org-babel-multi-line-header-regexp))))
+	    (setq type 'source-block))
+	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
+		(forward-line 1)
+		(beginning-of-line)
+		(if (or (= (point) (point-min)) (= (point) (point-max)))
+		    (error "Reference not found")))))
+	  (let ((params (append args '((:results . "silent")))))
+	    (setq result
+		  (case type
+		    (results-line (org-babel-read-result))
+		    (table        (org-babel-read-table))
+		    (list         (org-babel-read-list))
+		    (file         (org-babel-read-link))
+		    (source-block (org-babel-execute-src-block
+				   nil nil (if org-babel-update-intermediate
+					       nil params)))
+		    (lob          (org-babel-execute-src-block
+				   nil lob-info params))
+		    (id           (org-babel-ref-headline-body)))))
+	  (if (symbolp result)
+	      (format "%S" result)
+	    (if (and index (listp result))
+		(org-babel-ref-index-list index result)
+	      result)))))))
+
+(defun org-babel-ref-index-list (index lis)
+  "Return the subset of LIS indexed by INDEX.
+
+Indices are 0 based and negative indices count from the end of
+LIS, so 0 references the first element of LIS and -1 references
+the last.  If INDEX is separated by \",\"s then each \"portion\"
+is assumed to index into the next deepest nesting or dimension.
+
+A valid \"portion\" can consist of either an integer index, two
+integers separated by a \":\" in which case the entire range is
+returned, or an empty string or \"*\" both of which are
+interpreted to mean the entire range and as such are equivalent
+to \"0:-1\"."
+  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
+      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
+	     (lgth (length lis))
+	     (portion (match-string 1 index))
+	     (remainder (substring index (match-end 0)))
+	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
+	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
+	(funcall
+	 open
+	 (mapcar
+	  (lambda (sub-lis)
+	    (if (listp sub-lis)
+		(org-babel-ref-index-list remainder sub-lis)
+	      sub-lis))
+	  (if (or (= 0 (length portion)) (string-match ind-re portion))
+	      (mapcar
+	       (lambda (n) (nth n lis))
+	       (apply 'org-number-sequence
+		      (if (and (> (length portion) 0) (match-string 2 portion))
+			  (list
+			   (funcall wrap (string-to-number (match-string 2 portion)))
+			   (funcall wrap (string-to-number (match-string 3 portion))))
+			(list (funcall wrap 0) (funcall wrap -1)))))
+	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
+    lis))
+
+(defun org-babel-ref-split-args (arg-string)
+  "Split ARG-STRING into top-level arguments of balanced parenthesis."
+  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
+
+(defvar org-bracket-link-regexp)
+(defun org-babel-ref-at-ref-p ()
+  "Return the type of reference located at point.
+Return nil if none of the supported reference types are found.
+Supported reference types are tables and source blocks."
+  (cond ((org-at-table-p) 'table)
+	((org-at-item-p) 'list)
+        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
+        ((looking-at org-bracket-link-regexp) 'file)
+        ((looking-at org-babel-result-regexp) 'results-line)))
 
 (provide 'ob)
 
diff --git a/lisp/org-src.el b/lisp/org-src.el
index f91da19..1b38aa2 100644
--- a/lisp/org-src.el
+++ b/lisp/org-src.el
@@ -32,8 +32,7 @@
 
 (require 'org-macs)
 (require 'org-compat)
-(require 'ob-keys)
-(require 'ob-comint)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
@@ -743,8 +742,6 @@ with \",*\", \",#+\", \",,*\" and \",,#+\"."
   (interactive)
   (org-src-in-org-buffer (save-buffer)))
 
-(declare-function org-babel-tangle "ob-tangle" (&optional only-this-block target-file lang))
-
 (defun org-src-tangle (arg)
   "Tangle the parent buffer."
   (interactive)
-- 
1.8.0.1


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-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> This patch doesn't apply for me with "git am" to the HEAD of the repo so
>> I can't test it directly
>
> Please try this new one against current db51b8 commit in master.
>

This patch is still broken

    org-mode$ git checkout db51b8 -b crude
    Switched to a new branch 'crude'

    org-mode$ git am /tmp/0001-Crude-patch-to-simplify-dependencies.patch 
    Applying: Crude patch to simplify dependencies.
    error: patch failed: lisp/ob-exp.el:23
    error: lisp/ob-exp.el: patch does not apply
    Patch failed at 0001 Crude patch to simplify dependencies.
    The copy of the patch that failed is found in:
       /home/eschulte/.emacs.d/src/org-mode/.git/rebase-apply/patch
    When you have resolved this problem, run "git am --resolved".
    If you prefer to skip this patch, run "git am --skip" instead.
    To restore the original branch and stop patching, run "git am --abort".

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Bastien]

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Eric Schulte <schulte.eric@gmail.com> writes:

> This patch is still broken

(I don't know why ~$ git format-patch master did not produce an
applicable patch.)

These three ones are applicable against master/68d4de2.

Bare in mind this is just meant as a proof it "works", we can
rework the patches later on.


[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-Delete-files.patch --]
[-- Type: text/x-patch, Size: 142753 bytes --]

From 7f82d742fe20bae42923b33e405d58771760ce6b Mon Sep 17 00:00:00 2001
From: Bastien Guerry <bzg@altern.org>
Date: Fri, 14 Dec 2012 18:38:00 +0100
Subject: [PATCH 1/3] Delete files.

---
 lisp/ob-comint.el |  166 ----
 lisp/ob-core.el   | 2631 -----------------------------------------------------
 lisp/ob-eval.el   |  261 ------
 lisp/ob-keys.el   |  105 ---
 lisp/ob-lob.el    |  149 ---
 lisp/ob-ref.el    |  266 ------
 6 files changed, 3578 deletions(-)
 delete mode 100644 lisp/ob-comint.el
 delete mode 100644 lisp/ob-core.el
 delete mode 100644 lisp/ob-eval.el
 delete mode 100644 lisp/ob-keys.el
 delete mode 100644 lisp/ob-lob.el
 delete mode 100644 lisp/ob-ref.el

diff --git a/lisp/ob-comint.el b/lisp/ob-comint.el
deleted file mode 100644
index c3afd35..0000000
--- a/lisp/ob-comint.el
+++ /dev/null
@@ -1,166 +0,0 @@
-;;; ob-comint.el --- org-babel functions for interaction with comint buffers
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build on comint to ease the sending and receiving
-;; of commands and results from comint buffers.
-
-;; Note that the buffers in this file are analogous to sessions in
-;; org-babel at large.
-
-;;; Code:
-(require 'ob-core)
-(require 'org-compat)
-(require 'comint)
-(eval-when-compile (require 'cl))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function tramp-flush-directory-property "tramp" (vec directory))
-
-(defun org-babel-comint-buffer-livep (buffer)
-  "Check if BUFFER is a comint buffer with a live process."
-  (let ((buffer (if buffer (get-buffer buffer))))
-    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
-
-(defmacro org-babel-comint-in-buffer (buffer &rest body)
-  "Check BUFFER and execute BODY.
-BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
-executed inside the protection of `save-excursion' and
-`save-match-data'."
-  (declare (indent 1))
-  `(save-excursion
-     (save-match-data
-       (unless (org-babel-comint-buffer-livep ,buffer)
-         (error "Buffer %s does not exist or has no process" ,buffer))
-       (set-buffer ,buffer)
-       ,@body)))
-(def-edebug-spec org-babel-comint-in-buffer (form body))
-
-(defmacro org-babel-comint-with-output (meta &rest body)
-  "Evaluate BODY in BUFFER and return process output.
-Will wait until EOE-INDICATOR appears in the output, then return
-all process output.  If REMOVE-ECHO and FULL-BODY are present and
-non-nil, then strip echo'd body from the returned output.  META
-should be a list containing the following where the last two
-elements are optional.
-
- (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
-
-This macro ensures that the filter is removed in case of an error
-or user `keyboard-quit' during execution of body."
-  (declare (indent 1))
-  (let ((buffer (car meta))
-	(eoe-indicator (cadr meta))
-	(remove-echo (cadr (cdr meta)))
-	(full-body (cadr (cdr (cdr meta)))))
-    `(org-babel-comint-in-buffer ,buffer
-       (let ((string-buffer "") dangling-text raw)
-	 ;; setup filter
-	 (setq comint-output-filter-functions
-	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
-		     comint-output-filter-functions))
-	 (unwind-protect
-	     (progn
-	       ;; got located, and save dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (let ((start (point))
-		     (end (point-max)))
-		 (setq dangling-text (buffer-substring start end))
-		 (delete-region start end))
-	       ;; pass FULL-BODY to process
-	       ,@body
-	       ;; wait for end-of-evaluation indicator
-	       (while (progn
-			(goto-char comint-last-input-end)
-			(not (save-excursion
-			       (and (re-search-forward
-				     (regexp-quote ,eoe-indicator) nil t)
-				    (re-search-forward
-				     comint-prompt-regexp nil t)))))
-		 (accept-process-output (get-buffer-process (current-buffer)))
-		 ;; thought the following this would allow async
-		 ;; background running, but I was wrong...
-		 ;; (run-with-timer .5 .5 'accept-process-output
-		 ;; 		 (get-buffer-process (current-buffer)))
-		 )
-	       ;; replace cut dangling text
-	       (goto-char (process-mark (get-buffer-process (current-buffer))))
-	       (insert dangling-text))
-	   ;; remove filter
-	   (setq comint-output-filter-functions
-		 (cdr comint-output-filter-functions)))
-	 ;; remove echo'd FULL-BODY from input
-	 (if (and ,remove-echo ,full-body
-		  (string-match
-		   (replace-regexp-in-string
-		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
-		   string-buffer))
-	     (setq raw (substring string-buffer (match-end 0))))
-	 (split-string string-buffer comint-prompt-regexp)))))
-(def-edebug-spec org-babel-comint-with-output (form body))
-
-(defun org-babel-comint-input-command (buffer cmd)
-  "Pass CMD to BUFFER.
-The input will not be echoed."
-  (org-babel-comint-in-buffer buffer
-    (goto-char (process-mark (get-buffer-process buffer)))
-    (insert cmd)
-    (comint-send-input)
-    (org-babel-comint-wait-for-output buffer)))
-
-(defun org-babel-comint-wait-for-output (buffer)
-  "Wait until output arrives from BUFFER.
-Note: this is only safe when waiting for the result of a single
-statement (not large blocks of code)."
-  (org-babel-comint-in-buffer buffer
-    (while (progn
-             (goto-char comint-last-input-end)
-             (not (and (re-search-forward comint-prompt-regexp nil t)
-                       (goto-char (match-beginning 0))
-                       (string= (face-name (face-at-point))
-                                "comint-highlight-prompt"))))
-      (accept-process-output (get-buffer-process buffer)))))
-
-(defun org-babel-comint-eval-invisibly-and-wait-for-file
-  (buffer file string &optional period)
-  "Evaluate STRING in BUFFER invisibly.
-Don't return until FILE exists.  Code in STRING must ensure that
-FILE exists at end of evaluation."
-  (unless (org-babel-comint-buffer-livep buffer)
-    (error "Buffer %s does not exist or has no process" buffer))
-  (if (file-exists-p file) (delete-file file))
-  (process-send-string
-   (get-buffer-process buffer)
-   (if (string-match "\n$" string) string (concat string "\n")))
-  ;; From Tramp 2.1.19 the following cache flush is not necessary
-  (if (file-remote-p default-directory)
-      (let (v)
-	(with-parsed-tramp-file-name default-directory nil
-				     (tramp-flush-directory-property v ""))))
-  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
-
-(provide 'ob-comint)
-
-
-
-;;; ob-comint.el ends here
diff --git a/lisp/ob-core.el b/lisp/ob-core.el
deleted file mode 100644
index 03ac6e1..0000000
--- a/lisp/ob-core.el
+++ /dev/null
@@ -1,2631 +0,0 @@
-;;; ob-core.el --- working with code blocks in org-mode
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-eval)
-(require 'org-macs)
-(require 'org-compat)
-
-(defconst org-babel-exeext
-  (if (memq system-type '(windows-nt cygwin))
-      ".exe"
-    nil))
-(defvar org-babel-call-process-region-original)
-(defvar org-src-lang-modes)
-(defvar org-babel-library-of-babel)
-(declare-function show-all "outline" ())
-(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
-(declare-function org-mark-ring-push "org" (&optional pos buffer))
-(declare-function tramp-compat-make-temp-file "tramp-compat"
-                  (filename &optional dir-flag))
-(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
-(declare-function tramp-file-name-user "tramp" (vec))
-(declare-function tramp-file-name-host "tramp" (vec))
-(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
-(declare-function org-icompleting-read "org" (&rest args))
-(declare-function org-edit-src-code "org-src"
-                  (&optional context code edit-buffer-name quietp))
-(declare-function org-edit-src-exit "org-src"  (&optional context))
-(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
-(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
-(declare-function org-outline-overlay-data "org" (&optional use-markers))
-(declare-function org-set-outline-overlay-data "org" (data))
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-entry-get "org"
-		  (pom property &optional inherit literal-nil))
-(declare-function org-make-options-regexp "org" (kwds &optional extra))
-(declare-function org-do-remove-indentation "org" (&optional n))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-cycle "org" (&optional arg))
-(declare-function org-uniquify "org" (list))
-(declare-function org-current-level "org" ())
-(declare-function org-table-import "org-table" (file arg))
-(declare-function org-add-hook "org-compat"
-		  (hook function &optional append local))
-(declare-function org-table-align "org-table" ())
-(declare-function org-table-end "org-table" (&optional table-type))
-(declare-function orgtbl-to-generic "org-table" (table params))
-(declare-function orgtbl-to-orgtbl "org-table" (table params))
-(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
-(declare-function org-babel-lob-get-info "ob-lob" nil)
-(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
-(declare-function org-babel-ref-parse "ob-ref" (assignment))
-(declare-function org-babel-ref-resolve "ob-ref" (ref))
-(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
-(declare-function org-babel-ref-headline-body "ob-ref" ())
-(declare-function org-babel-lob-execute-maybe "ob-lob" ())
-(declare-function org-number-sequence "org-compat" (from &optional to inc))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-list-parse-list "org-list" (&optional delete))
-(declare-function org-list-to-generic "org-list" (LIST PARAMS))
-(declare-function org-list-struct "org-list" ())
-(declare-function org-list-prevs-alist "org-list" (struct))
-(declare-function org-list-get-list-end "org-list" (item struct prevs))
-(declare-function org-remove-if "org" (predicate seq))
-(declare-function org-completing-read "org" (&rest args))
-(declare-function org-escape-code-in-region "org-src" (beg end))
-(declare-function org-unescape-code-in-string "org-src" (s))
-(declare-function org-table-to-lisp "org-table" (&optional txt))
-
-(defgroup org-babel nil
-  "Code block evaluation and management in `org-mode' documents."
-  :tag "Babel"
-  :group 'org)
-
-(defcustom org-confirm-babel-evaluate t
-  "Confirm before evaluation.
-Require confirmation before interactively evaluating code
-blocks in Org-mode buffers.  The default value of this variable
-is t, meaning confirmation is required for any code block
-evaluation.  This variable can be set to nil to inhibit any
-future confirmation requests.  This variable can also be set to a
-function which takes two arguments the language of the code block
-and the body of the code block.  Such a function should then
-return a non-nil value if the user should be prompted for
-execution or nil if no prompt is required.
-
-Warning: Disabling confirmation may result in accidental
-evaluation of potentially harmful code.  It may be advisable
-remove code block execution from C-c C-c as further protection
-against accidental code block evaluation.  The
-`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
-remove code block execution from the C-c C-c keybinding."
-  :group 'org-babel
-  :version "24.1"
-  :type '(choice boolean function))
-;; don't allow this variable to be changed through file settings
-(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
-
-(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
-  "Remove code block evaluation from the C-c C-c key binding."
-  :group 'org-babel
-  :version "24.1"
-  :type 'boolean)
-
-(defcustom org-babel-results-keyword "RESULTS"
-  "Keyword used to name results generated by code blocks.
-Should be either RESULTS or NAME however any capitalization may
-be used."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-start "<<"
-  "String used to begin a noweb reference in a code block.
-See also `org-babel-noweb-wrap-end'."
-  :group 'org-babel
-  :type 'string)
-
-(defcustom org-babel-noweb-wrap-end ">>"
-  "String used to end a noweb reference in a code block.
-See also `org-babel-noweb-wrap-start'."
-  :group 'org-babel
-  :type 'string)
-
-(defun org-babel-noweb-wrap (&optional regexp)
-  (concat org-babel-noweb-wrap-start
-	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
-	  org-babel-noweb-wrap-end))
-
-(defvar org-babel-src-name-regexp
-  "^[ \t]*#\\+name:[ \t]*"
-  "Regular expression used to match a source name line.")
-
-(defvar org-babel-multi-line-header-regexp
-  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
-  "Regular expression used to match multi-line header arguments.")
-
-(defvar org-babel-src-name-w-name-regexp
-  (concat org-babel-src-name-regexp
-	  "\\("
-	  org-babel-multi-line-header-regexp
-	  "\\)*"
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
-  "Regular expression matching source name lines with a name.")
-
-(defvar org-babel-src-block-regexp
-  (concat
-   ;; (1) indentation                 (2) lang
-   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
-   ;; (3) switches
-   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
-   ;; (4) header arguments
-   "\\([^\n]*\\)\n"
-   ;; (5) body
-   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
-  "Regexp used to identify code blocks.")
-
-(defvar org-babel-inline-src-block-regexp
-  (concat
-   ;; (1) replacement target (2) lang
-   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
-   ;; (3,4) (unused, headers)
-   "\\(\\|\\[\\(.*?\\)\\]\\)"
-   ;; (5) body
-   "{\\([^\f\n\r\v]+?\\)}\\)")
-  "Regexp used to identify inline src-blocks.")
-
-(defun org-babel-get-header (params key &optional others)
-  "Select only header argument of type KEY from a list.
-Optional argument OTHERS indicates that only the header that do
-not match KEY should be returned."
-  (delq nil
-	(mapcar
-	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
-	 params)))
-
-(defun org-babel-get-inline-src-block-matches()
-  "Set match data if within body of an inline source block.
-Returns non-nil if match-data set"
-  (let ((src-at-0-p (save-excursion
-		      (beginning-of-line 1)
-		      (string= "src" (thing-at-point 'word))))
-	(first-line-p (= 1 (line-number-at-pos)))
-	(orig (point)))
-    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
-			    (first-line-p "[[:punct:] \t]src_")
-			    (t "[[:punct:] \f\t\n\r\v]src_")))
-	  (lower-limit (if first-line-p
-			   nil
-			 (- (point-at-bol) 1))))
-      (save-excursion
-	(when (or (and src-at-0-p (bobp))
-		  (and (re-search-forward "}" (point-at-eol) t)
-		       (re-search-backward search-for lower-limit t)
-		       (> orig (point))))
-	  (when (looking-at org-babel-inline-src-block-regexp)
-	    t ))))))
-
-(defvar org-babel-inline-lob-one-liner-regexp)
-(defun org-babel-get-lob-one-liner-matches()
-  "Set match data if on line of an lob one liner.
-Returns non-nil if match-data set"
-  (save-excursion
-    (unless (= (point) (point-at-bol)) ;; move before inline block
-      (re-search-backward "[ \f\t\n\r\v]" nil t))
-    (if (looking-at org-babel-inline-lob-one-liner-regexp)
-	t
-      nil)))
-
-(defun org-babel-get-src-block-info (&optional light)
-  "Get information on the current source block.
-
-Optional argument LIGHT does not resolve remote variable
-references; a process which could likely result in the execution
-of other code blocks.
-
-Returns a list
- (language body header-arguments-alist switches name indent)."
-  (let ((case-fold-search t) head info name indent)
-    ;; full code block
-    (if (setq head (org-babel-where-is-src-block-head))
-	(save-excursion
-	  (goto-char head)
-	  (setq info (org-babel-parse-src-block-match))
-	  (setq indent (car (last info)))
-	  (setq info (butlast info))
-	  (while (and (forward-line -1)
-		      (looking-at org-babel-multi-line-header-regexp))
-	    (setf (nth 2 info)
-		  (org-babel-merge-params
-		   (nth 2 info)
-		   (org-babel-parse-header-arguments (match-string 1)))))
-	  (when (looking-at org-babel-src-name-w-name-regexp)
-	    (setq name (org-no-properties (match-string 3)))
-	    (when (and (match-string 5) (> (length (match-string 5)) 0))
-	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
-		    (org-babel-merge-params
-		     (mapcar
-		      (lambda (ref) (cons :var ref))
-		      (mapcar
-		       (lambda (var) ;; check that each variable is initialized
-			 (if (string-match ".+=.+" var)
-			     var
-			   (error
-			    "variable \"%s\"%s must be assigned a default value"
-			    var (if name (format " in block \"%s\"" name) ""))))
-		       (org-babel-ref-split-args (match-string 5))))
-		     (nth 2 info))))))
-      ;; inline source block
-      (when (org-babel-get-inline-src-block-matches)
-	(setq info (org-babel-parse-inline-src-block-match))))
-    ;; resolve variable references and add summary parameters
-    (when (and info (not light))
-      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
-    (when info (append info (list name indent)))))
-
-(defvar org-current-export-file) ; dynamically bound
-(defun org-babel-confirm-evaluate (info)
-  "Confirm evaluation of the code block INFO.
-This behavior can be suppressed by setting the value of
-`org-confirm-babel-evaluate' to nil, in which case all future
-interactive code block evaluations will proceed without any
-confirmation from the user.
-
-Note disabling confirmation may result in accidental evaluation
-of potentially harmful code."
-  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
-		   (when (assoc :noeval (nth 2 info)) "no")))
-         (query (cond ((equal eval "query") t)
-		      ((and (boundp 'org-current-export-file)
-			    org-current-export-file
-			    (equal eval "query-export")) t)
-                      ((functionp org-confirm-babel-evaluate)
-                       (funcall org-confirm-babel-evaluate
-                                (nth 0 info) (nth 1 info)))
-                      (t org-confirm-babel-evaluate))))
-    (if (or (equal eval "never") (equal eval "no")
-	    (and (boundp 'org-current-export-file)
-		 org-current-export-file
-		 (or (equal eval "no-export")
-		     (equal eval "never-export")))
-	    (and query
-		 (not (yes-or-no-p
-		       (format "Evaluate this%scode block%son your system? "
-			       (if info (format " %s " (nth 0 info)) " ")
-			       (if (nth 4 info)
-				   (format " (%s) " (nth 4 info)) " "))))))
-	(prog1 nil (message "Evaluation %s"
-			    (if (or (equal eval "never") (equal eval "no")
-				    (equal eval "no-export")
-				    (equal eval "never-export"))
-				"Disabled" "Aborted")))
-      t)))
-
-;;;###autoload
-(defun org-babel-execute-safely-maybe ()
-  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
-    (org-babel-execute-maybe)))
-
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
-
-;;;###autoload
-(defun org-babel-execute-maybe ()
-  (interactive)
-  (or (org-babel-execute-src-block-maybe)
-      (org-babel-lob-execute-maybe)))
-
-(defun org-babel-execute-src-block-maybe ()
-  "Conditionally execute a source block.
-Detect if this is context for a Babel src-block and if so
-then run `org-babel-execute-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-eval-wipe-error-buffer)
-	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
-
-;;;###autoload
-(defun org-babel-view-src-block-info ()
-  "Display information on the current source block.
-This includes header arguments, language and name, and is largely
-a window into the `org-babel-get-src-block-info' function."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info 'light))
-	(full (lambda (it) (> (length it) 0)))
-	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
-    (when info
-      (with-help-window (help-buffer)
-	(let ((name        (nth 4 info))
-	      (lang        (nth 0 info))
-	      (switches    (nth 3 info))
-	      (header-args (nth 2 info)))
-	  (when name            (funcall printf "Name: %s\n"     name))
-	  (when lang            (funcall printf "Lang: %s\n"     lang))
-	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
-	  (funcall printf "Header Arguments:\n")
-	  (dolist (pair (sort header-args
-			      (lambda (a b) (string< (symbol-name (car a))
-						     (symbol-name (car b))))))
-	    (when (funcall full (cdr pair))
-	      (funcall printf "\t%S%s\t%s\n"
-		       (car pair)
-		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
-		       (cdr pair)))))))))
-
-;;;###autoload
-(defun org-babel-expand-src-block-maybe ()
-  "Conditionally expand a source block.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-expand-src-block'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-expand-src-block current-prefix-arg info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-load-in-session-maybe ()
-  "Conditionally load a source block in a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-load-in-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info
-	(progn (org-babel-load-in-session current-prefix-arg info) t)
-      nil)))
-
-(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
-
-;;;###autoload
-(defun org-babel-pop-to-session-maybe ()
-  "Conditionally pop to a session.
-Detect if this is context for a org-babel src-block and if so
-then run `org-babel-pop-to-session'."
-  (interactive)
-  (let ((info (org-babel-get-src-block-info)))
-    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
-
-(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
-
-(defconst org-babel-common-header-args-w-values
-  '((cache	. ((no yes)))
-    (cmdline	. :any)
-    (colnames	. ((nil no yes)))
-    (comments	. ((no link yes org both noweb)))
-    (dir	. :any)
-    (eval	. ((never query)))
-    (exports	. ((code results both none)))
-    (file	. :any)
-    (file-desc  . :any)
-    (hlines	. ((no yes)))
-    (mkdirp	. ((yes no)))
-    (no-expand)
-    (noeval)
-    (noweb	. ((yes no tangle no-export strip-export)))
-    (noweb-ref	. :any)
-    (noweb-sep  . :any)
-    (padline	. ((yes no)))
-    (results	. ((file list vector table scalar verbatim)
-		   (raw html latex org code pp drawer)
-		   (replace silent none append prepend)
-		   (output value)))
-    (rownames	. ((no yes)))
-    (sep	. :any)
-    (session	. :any)
-    (shebang	. :any)
-    (tangle	. ((tangle yes no :any)))
-    (var	. :any)
-    (wrap       . :any)))
-
-(defconst org-babel-header-arg-names
-  (mapcar #'car org-babel-common-header-args-w-values)
-  "Common header arguments used by org-babel.
-Note that individual languages may define their own language
-specific header arguments as well.")
-
-(defvar org-babel-default-header-args
-  '((:session . "none") (:results . "replace") (:exports . "code")
-    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
-    (:padnewline . "yes"))
-  "Default arguments to use when evaluating a source block.")
-
-(defvar org-babel-default-inline-header-args
-  '((:session . "none") (:results . "replace") (:exports . "results"))
-  "Default arguments to use when evaluating an inline source block.")
-
-(defvar org-babel-data-names '("tblname" "results" "name"))
-
-(defvar org-babel-result-regexp
-  (concat "^[ \t]*#\\+"
-	  (regexp-opt org-babel-data-names t)
-	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
-  "Regular expression used to match result lines.
-If the results are associated with a hash key then the hash will
-be saved in the second match data.")
-
-(defvar org-babel-result-w-name-regexp
-  (concat org-babel-result-regexp
-	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
-
-(defvar org-babel-min-lines-for-block-output 10
-  "The minimum number of lines for block output.
-If number of lines of output is equal to or exceeds this
-value, the output is placed in a #+begin_example...#+end_example
-block.  Otherwise the output is marked as literal by inserting
-colons at the starts of the lines.  This variable only takes
-effect if the :results output option is in effect.")
-
-(defvar org-babel-noweb-error-langs nil
-  "Languages for which Babel will raise literate programming errors.
-List of languages for which errors should be raised when the
-source code block satisfying a noweb reference in this language
-can not be resolved.")
-
-(defvar org-babel-hash-show 4
-  "Number of initial characters to show of a hidden results hash.")
-
-(defvar org-babel-after-execute-hook nil
-  "Hook for functions to be called after `org-babel-execute-src-block'")
-
-(defun org-babel-named-src-block-regexp-for-name (name)
-  "This generates a regexp used to match a src block named NAME."
-  (concat org-babel-src-name-regexp (regexp-quote name)
-	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
-	  (substring org-babel-src-block-regexp 1)))
-
-(defun org-babel-named-data-regexp-for-name (name)
-  "This generates a regexp used to match data named NAME."
-  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
-
-;;; functions
-(defvar call-process-region)
-
-;;;###autoload
-(defun org-babel-execute-src-block (&optional arg info params)
-  "Execute the current source code block.
-Insert the results of execution into the buffer.  Source code
-execution and the collection and formatting of results can be
-controlled through a variety of header arguments.
-
-With prefix argument ARG, force re-execution even if an existing
-result cached in the buffer would otherwise have been returned.
-
-Optionally supply a value for INFO in the form returned by
-`org-babel-get-src-block-info'.
-
-Optionally supply a value for PARAMS which will be merged with
-the header arguments specified at the front of the source code
-block."
-  (interactive)
-  (let ((info (or info (org-babel-get-src-block-info))))
-    (when (org-babel-confirm-evaluate
-	   (let ((i info))
-	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
-	     i))
-      (let* ((lang (nth 0 info))
-	     (params (if params
-			 (org-babel-process-params
-			  (org-babel-merge-params (nth 2 info) params))
-		       (nth 2 info)))
-	     (cache? (and (not arg) (cdr (assoc :cache params))
-			  (string= "yes" (cdr (assoc :cache params)))))
-	     (result-params (cdr (assoc :result-params params)))
-	     (new-hash (when cache? (org-babel-sha1-hash info)))
-	     (old-hash (when cache? (org-babel-current-result-hash)))
-	     (body (setf (nth 1 info)
-			 (if (org-babel-noweb-p params :eval)
-			     (org-babel-expand-noweb-references info)
-			   (nth 1 info))))
-	     (dir (cdr (assoc :dir params)))
-	     (default-directory
-	       (or (and dir (file-name-as-directory (expand-file-name dir)))
-		   default-directory))
-	     (org-babel-call-process-region-original
-	      (if (boundp 'org-babel-call-process-region-original)
-		  org-babel-call-process-region-original
-		(symbol-function 'call-process-region)))
-	     (indent (car (last info)))
-	     result cmd)
-	(unwind-protect
-	    (let ((call-process-region
-		   (lambda (&rest args)
-		     (apply 'org-babel-tramp-handle-call-process-region args))))
-	      (let ((lang-check (lambda (f)
-				  (let ((f (intern (concat "org-babel-execute:" f))))
-				    (when (fboundp f) f)))))
-		(setq cmd
-		      (or (funcall lang-check lang)
-			  (funcall lang-check (symbol-name
-					       (cdr (assoc lang org-src-lang-modes))))
-			  (error "No org-babel-execute function for %s!" lang))))
-	      (if (and (not arg) new-hash (equal new-hash old-hash))
-		  (save-excursion ;; return cached result
-		    (goto-char (org-babel-where-is-src-block-result nil info))
-		    (end-of-line 1) (forward-char 1)
-		    (setq result (org-babel-read-result))
-		    (message (replace-regexp-in-string
-			      "%" "%%" (format "%S" result))) result)
-		(message "executing %s code block%s..."
-			 (capitalize lang)
-			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
-		(if (member "none" result-params)
-		    (progn
-		      (funcall cmd body params)
-		      (message "result silenced"))
-		(setq result
-		      ((lambda (result)
-			 (if (and (eq (cdr (assoc :result-type params)) 'value)
-				  (or (member "vector" result-params)
-				      (member "table" result-params))
-				  (not (listp result)))
-			     (list (list result)) result))
-		       (funcall cmd body params)))
-		;; if non-empty result and :file then write to :file
-		(when (cdr (assoc :file params))
-		  (when result
-		    (with-temp-file (cdr (assoc :file params))
-		      (insert
-		       (org-babel-format-result
-			result (cdr (assoc :sep (nth 2 info)))))))
-		  (setq result (cdr (assoc :file params))))
-		(org-babel-insert-result
-		 result result-params info new-hash indent lang)
-		(run-hooks 'org-babel-after-execute-hook)
-		result
-		)))
-	  (setq call-process-region 'org-babel-call-process-region-original))))))
-
-(defun org-babel-expand-body:generic (body params &optional var-lines)
-  "Expand BODY with PARAMS.
-Expand a block of code with org-babel according to its header
-arguments.  This generic implementation of body expansion is
-called for languages which have not defined their own specific
-org-babel-expand-body:lang function."
-  (mapconcat #'identity (append var-lines (list body)) "\n"))
-
-;;;###autoload
-(defun org-babel-expand-src-block (&optional arg info params)
-  "Expand the current source code block.
-Expand according to the source code block's header
-arguments and pop open the results in a preview buffer."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-	 (params (setf (nth 2 info)
-                       (sort (org-babel-merge-params (nth 2 info) params)
-                             (lambda (el1 el2) (string< (symbol-name (car el1))
-							(symbol-name (car el2)))))))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-			 (org-babel-expand-noweb-references info) (nth 1 info))))
-         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
-	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
-					  lang)))
-         (expanded
-	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
-	    (org-babel-expand-body:generic
-	     body params (and (fboundp assignments-cmd)
-			      (funcall assignments-cmd params))))))
-    (org-edit-src-code
-     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
-
-(defun org-babel-edit-distance (s1 s2)
-  "Return the edit (levenshtein) distance between strings S1 S2."
-  (let* ((l1 (length s1))
-	 (l2 (length s2))
-	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
-				(number-sequence 1 (1+ l1)))))
-	 (in (lambda (i j) (aref (aref dist i) j))))
-    (setf (aref (aref dist 0) 0) 0)
-    (dolist (j (number-sequence 1 l2))
-      (setf (aref (aref dist 0) j) j))
-    (dolist (i (number-sequence 1 l1))
-      (setf (aref (aref dist i) 0) i)
-      (dolist (j (number-sequence 1 l2))
-	(setf (aref (aref dist i) j)
-	      (min
-	       (1+ (funcall in (1- i) j))
-	       (1+ (funcall in i (1- j)))
-	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
-		  (funcall in (1- i) (1- j)))))))
-    (funcall in l1 l2)))
-
-(defun org-babel-combine-header-arg-lists (original &rest others)
-  "Combine a number of lists of header argument names and arguments."
-  (let ((results (copy-sequence original)))
-    (dolist (new-list others)
-      (dolist (arg-pair new-list)
-	(let ((header (car arg-pair))
-	      (args (cdr arg-pair)))
-	  (setq results
-		(cons arg-pair (org-remove-if
-				(lambda (pair) (equal header (car pair)))
-				results))))))
-    results))
-
-;;;###autoload
-(defun org-babel-check-src-block ()
-  "Check for misspelled header arguments in the current code block."
-  (interactive)
-  ;; TODO: report malformed code block
-  ;; TODO: report incompatible combinations of header arguments
-  ;; TODO: report uninitialized variables
-  (let ((too-close 2) ;; <- control closeness to report potential match
-	(names (mapcar #'symbol-name org-babel-header-arg-names)))
-    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
-			    (and (org-babel-where-is-src-block-head)
-				 (org-babel-parse-header-arguments
-				  (org-no-properties
-				   (match-string 4))))))
-      (dolist (name names)
-	(when (and (not (string= header name))
-		   (<= (org-babel-edit-distance header name) too-close)
-		   (not (member header names)))
-	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
-		 header name))))
-    (message "No suspicious header arguments found.")))
-
-;;;###autoload
-(defun org-babel-insert-header-arg ()
-  "Insert a header argument selecting from lists of common args and values."
-  (interactive)
-  (let* ((lang (car (org-babel-get-src-block-info 'light)))
-	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
-	 (headers (org-babel-combine-header-arg-lists
-		   org-babel-common-header-args-w-values
-		   (if (boundp lang-headers) (eval lang-headers) nil)))
-	 (arg (org-icompleting-read
-	       "Header Arg: "
-	       (mapcar
-		(lambda (header-spec) (symbol-name (car header-spec)))
-		headers))))
-    (insert ":" arg)
-    (let ((vals (cdr (assoc (intern arg) headers))))
-      (when vals
-	(insert
-	 " "
-	 (cond
-	  ((eq vals :any)
-	   (read-from-minibuffer "value: "))
-	  ((listp vals)
-	   (mapconcat
-	    (lambda (group)
-	      (let ((arg (org-icompleting-read
-			  "value: "
-			  (cons "default" (mapcar #'symbol-name group)))))
-		(if (and arg (not (string= "default" arg)))
-		    (concat arg " ")
-		  "")))
-	    vals ""))))))))
-
-;; Add support for completing-read insertion of header arguments after ":"
-(defun org-babel-header-arg-expand ()
-  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
-  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
-    (org-babel-enter-header-arg-w-completion (match-string 2))))
-
-(defun org-babel-enter-header-arg-w-completion (&optional lang)
-  "Insert header argument appropriate for LANG with completion."
-  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
-         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
-	 (headers-w-values (org-babel-combine-header-arg-lists
-			    org-babel-common-header-args-w-values lang-headers))
-         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
-         (header (org-completing-read "Header Arg: " headers))
-         (args (cdr (assoc (intern header) headers-w-values)))
-         (arg (when (and args (listp args))
-                (org-completing-read
-                 (format "%s: " header)
-                 (mapcar #'symbol-name (apply #'append args))))))
-    (insert (concat header " " (or arg "")))
-    (cons header arg)))
-
-(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
-
-;;;###autoload
-(defun org-babel-load-in-session (&optional arg info)
-  "Load the body of the current source-code block.
-Evaluate the header arguments for the source block before
-entering the session.  After loading the body this pops open the
-session."
-  (interactive)
-  (let* ((info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (params (nth 2 info))
-         (body (setf (nth 1 info)
-		     (if (org-babel-noweb-p params :eval)
-                         (org-babel-expand-noweb-references info)
-		       (nth 1 info))))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (cmd (intern (concat "org-babel-load-session:" lang))))
-    (unless (fboundp cmd)
-      (error "No org-babel-load-session function for %s!" lang))
-    (pop-to-buffer (funcall cmd session body params))
-    (end-of-line 1)))
-
-;;;###autoload
-(defun org-babel-initiate-session (&optional arg info)
-  "Initiate session for current code block.
-If called with a prefix argument then resolve any variable
-references in the header arguments and assign these variables in
-the session.  Copy the body of the code block to the kill ring."
-  (interactive "P")
-  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-         (params (nth 2 info))
-         (session (cdr (assoc :session params)))
-	 (dir (cdr (assoc :dir params)))
-	 (default-directory
-	   (or (and dir (file-name-as-directory dir)) default-directory))
-	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
-	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
-    (if (and (stringp session) (string= session "none"))
-	(error "This block is not using a session!"))
-    (unless (fboundp init-cmd)
-      (error "No org-babel-initiate-session function for %s!" lang))
-    (with-temp-buffer (insert (org-babel-trim body))
-                      (copy-region-as-kill (point-min) (point-max)))
-    (when arg
-      (unless (fboundp prep-cmd)
-	(error "No org-babel-prep-session function for %s!" lang))
-      (funcall prep-cmd session params))
-    (funcall init-cmd session params)))
-
-;;;###autoload
-(defun org-babel-switch-to-session (&optional arg info)
-  "Switch to the session of the current code block.
-Uses `org-babel-initiate-session' to start the session.  If called
-with a prefix argument then this is passed on to
-`org-babel-initiate-session'."
-  (interactive "P")
-  (pop-to-buffer (org-babel-initiate-session arg info))
-  (end-of-line 1))
-
-(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
-
-;;;###autoload
-(defun org-babel-switch-to-session-with-code (&optional arg info)
-  "Switch to code buffer and display session."
-  (interactive "P")
-  (let ((swap-windows
-	 (lambda ()
-	   (let ((other-window-buffer (window-buffer (next-window))))
-	     (set-window-buffer (next-window) (current-buffer))
-	     (set-window-buffer (selected-window) other-window-buffer))
-	   (other-window 1)))
-	(info (org-babel-get-src-block-info))
-	(org-src-window-setup 'reorganize-frame))
-    (save-excursion
-      (org-babel-switch-to-session arg info))
-    (org-edit-src-code)
-    (funcall swap-windows)))
-
-(defmacro org-babel-do-in-edit-buffer (&rest body)
-  "Evaluate BODY in edit buffer if there is a code block at point.
-Return t if a code block was found at point, nil otherwise."
-  `(let ((org-src-window-setup 'switch-invisibly))
-     (when (and (org-babel-where-is-src-block-head)
-		(org-edit-src-code nil nil nil))
-       (unwind-protect (progn ,@body)
-	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
-	     (org-edit-src-exit)))
-       t)))
-(def-edebug-spec org-babel-do-in-edit-buffer (body))
-
-(defun org-babel-do-key-sequence-in-edit-buffer (key)
-  "Read key sequence and execute the command in edit buffer.
-Enter a key sequence to be executed in the language major-mode
-edit buffer.  For example, TAB will alter the contents of the
-Org-mode code block according to the effect of TAB in the
-language major-mode buffer.  For languages that support
-interactive sessions, this can be used to send code from the Org
-buffer to the session for evaluation using the native major-mode
-evaluation mechanisms."
-  (interactive "kEnter key-sequence to execute in edit buffer: ")
-  (org-babel-do-in-edit-buffer
-   (call-interactively
-    (key-binding (or key (read-key-sequence nil))))))
-
-(defvar org-bracket-link-regexp)
-
-;;;###autoload
-(defun org-babel-open-src-block-result (&optional re-run)
-  "If `point' is on a src block then open the results of the
-source code block, otherwise return nil.  With optional prefix
-argument RE-RUN the source-code block is evaluated even if
-results already exist."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info)))
-    (when info
-      (save-excursion
-	;; go to the results, if there aren't any then run the block
-	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
-		       (progn (org-babel-execute-src-block)
-			      (org-babel-where-is-src-block-result))))
-	(end-of-line 1)
-	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
-	;; open the results
-	(if (looking-at org-bracket-link-regexp)
-	    ;; file results
-	    (org-open-at-point)
-	  (let ((r (org-babel-format-result
-		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
-	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
-	    (delete-region (point-min) (point-max))
-	    (insert r)))
-	t))))
-
-;;;###autoload
-(defmacro org-babel-map-src-blocks (file &rest body)
-  "Evaluate BODY forms on each source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer.  During evaluation of BODY the following local variables
-are set relative to the currently matched code block.
-
-full-block ------- string holding the entirety of the code block
-beg-block -------- point at the beginning of the code block
-end-block -------- point at the end of the matched code block
-lang ------------- string holding the language of the code block
-beg-lang --------- point at the beginning of the lang
-end-lang --------- point at the end of the lang
-switches --------- string holding the switches
-beg-switches ----- point at the beginning of the switches
-end-switches ----- point at the end of the switches
-header-args ------ string holding the header-args
-beg-header-args -- point at the beginning of the header-args
-end-header-args -- point at the end of the header-args
-body ------------- string holding the body of the code block
-beg-body --------- point at the beginning of the body
-end-body --------- point at the end of the body"
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-src-block-regexp nil t)
-	   (goto-char (match-beginning 0))
-	   (let ((full-block (match-string 0))
-		 (beg-block (match-beginning 0))
-		 (end-block (match-end 0))
-		 (lang (match-string 2))
-		 (beg-lang (match-beginning 2))
-		 (end-lang (match-end 2))
-		 (switches (match-string 3))
-		 (beg-switches (match-beginning 3))
-		 (end-switches (match-end 3))
-		 (header-args (match-string 4))
-		 (beg-header-args (match-beginning 4))
-		 (end-header-args (match-end 4))
-		 (body (match-string 5))
-		 (beg-body (match-beginning 5))
-		 (end-body (match-end 5)))
-	     ,@body
-	     (goto-char end-block))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-src-blocks (form body))
-
-;;;###autoload
-(defmacro org-babel-map-inline-src-blocks (file &rest body)
-  "Evaluate BODY forms on each inline source-block in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-inline-src-blocks (form body))
-
-(defvar org-babel-lob-one-liner-regexp)
-
-;;;###autoload
-(defmacro org-babel-map-call-lines (file &rest body)
-  "Evaluate BODY forms on each call line in FILE.
-If FILE is nil evaluate BODY forms on source blocks in current
-buffer."
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file")))
-    `(let* ((,tempvar ,file)
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
-	   (goto-char (match-beginning 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-call-lines (form body))
-
-;;;###autoload
-(defmacro org-babel-map-executables (file &rest body)
-  (declare (indent 1))
-  (let ((tempvar (make-symbol "file"))
-	(rx (make-symbol "rx")))
-    `(let* ((,tempvar ,file)
-	    (,rx (concat "\\(" org-babel-src-block-regexp
-			 "\\|" org-babel-inline-src-block-regexp
-			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
-	    (visited-p (or (null ,tempvar)
-			   (get-file-buffer (expand-file-name ,tempvar))))
-	    (point (point)) to-be-removed)
-       (save-window-excursion
-	 (when ,tempvar (find-file ,tempvar))
-	 (setq to-be-removed (current-buffer))
-	 (goto-char (point-min))
-	 (while (re-search-forward ,rx nil t)
-	   (goto-char (match-beginning 1))
-	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
-	   (save-match-data ,@body)
-	   (goto-char (match-end 0))))
-       (unless visited-p (kill-buffer to-be-removed))
-       (goto-char point))))
-(def-edebug-spec org-babel-map-executables (form body))
-
-;;;###autoload
-(defun org-babel-execute-buffer (&optional arg)
-  "Execute source code blocks in a buffer.
-Call `org-babel-execute-src-block' on every source block in
-the current buffer."
-  (interactive "P")
-  (org-babel-eval-wipe-error-buffer)
-  (org-save-outline-visibility t
-    (org-babel-map-executables nil
-      (if (looking-at org-babel-lob-one-liner-regexp)
-          (org-babel-lob-execute-maybe)
-        (org-babel-execute-src-block arg)))))
-
-;;;###autoload
-(defun org-babel-execute-subtree (&optional arg)
-  "Execute source code blocks in a subtree.
-Call `org-babel-execute-src-block' on every source block in
-the current subtree."
-  (interactive "P")
-  (save-restriction
-    (save-excursion
-      (org-narrow-to-subtree)
-      (org-babel-execute-buffer arg)
-      (widen))))
-
-;;;###autoload
-(defun org-babel-sha1-hash (&optional info)
-  "Generate an sha1 hash based on the value of info."
-  (interactive)
-  (let ((print-level nil)
-	(info (or info (org-babel-get-src-block-info))))
-    (setf (nth 2 info)
-	  (sort (copy-sequence (nth 2 info))
-		(lambda (a b) (string< (car a) (car b)))))
-    (let* ((rm (lambda (lst)
-		 (dolist (p '("replace" "silent" "none"
-			      "append" "prepend"))
-		   (setq lst (remove p lst)))
-		 lst))
-	   (norm (lambda (arg)
-		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
-				(copy-sequence (cdr arg))
-			      (cdr arg))))
-		     (when (and v (not (and (sequencep v)
-					    (not (consp v))
-					    (= (length v) 0))))
-		       (cond
-			((and (listp v) ; lists are sorted
-			      (member (car arg) '(:result-params)))
-			 (sort (funcall rm v) #'string<))
-			((and (stringp v) ; strings are sorted
-			      (member (car arg) '(:results :exports)))
-			 (mapconcat #'identity (sort (funcall rm (split-string v))
-						     #'string<) " "))
-			(t v)))))))
-      ((lambda (hash)
-	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
-       (let ((it (format "%s-%s"
-			 (mapconcat
-			  #'identity
-			  (delq nil (mapcar (lambda (arg)
-					      (let ((normalized (funcall norm arg)))
-						(when normalized
-						  (format "%S" normalized))))
-					    (nth 2 info))) ":")
-			 (nth 1 info))))
-	 (sha1 it))))))
-
-(defun org-babel-current-result-hash ()
-  "Return the current in-buffer hash."
-  (org-babel-where-is-src-block-result)
-  (org-no-properties (match-string 3)))
-
-(defun org-babel-set-current-result-hash (hash)
-  "Set the current in-buffer hash to HASH."
-  (org-babel-where-is-src-block-result)
-  (save-excursion (goto-char (match-beginning 3))
-		  ;; (mapc #'delete-overlay (overlays-at (point)))
-		  (replace-match hash nil nil nil 3)
-		  (org-babel-hide-hash)))
-
-(defun org-babel-hide-hash ()
-  "Hide the hash in the current results line.
-Only the initial `org-babel-hash-show' characters of the hash
-will remain visible."
-  (add-to-invisibility-spec '(org-babel-hide-hash . t))
-  (save-excursion
-    (when (and (re-search-forward org-babel-result-regexp nil t)
-               (match-string 3))
-      (let* ((start (match-beginning 3))
-             (hide-start (+ org-babel-hash-show start))
-             (end (match-end 3))
-             (hash (match-string 3))
-             ov1 ov2)
-        (setq ov1 (make-overlay start hide-start))
-        (setq ov2 (make-overlay hide-start end))
-        (overlay-put ov2 'invisible 'org-babel-hide-hash)
-        (overlay-put ov1 'babel-hash hash)))))
-
-(defun org-babel-hide-all-hashes ()
-  "Hide the hash in the current buffer.
-Only the initial `org-babel-hash-show' characters of each hash
-will remain visible.  This function should be called as part of
-the `org-mode-hook'."
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (goto-char (match-beginning 0))
-      (org-babel-hide-hash)
-      (goto-char (match-end 0)))))
-(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
-
-(defun org-babel-hash-at-point (&optional point)
-  "Return the value of the hash at POINT.
-The hash is also added as the last element of the kill ring.
-This can be called with C-c C-c."
-  (interactive)
-  (let ((hash (car (delq nil (mapcar
-			      (lambda (ol) (overlay-get ol 'babel-hash))
-                              (overlays-at (or point (point))))))))
-    (when hash (kill-new hash) (message hash))))
-(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
-
-(defun org-babel-result-hide-spec ()
-  "Hide portions of results lines.
-Add `org-babel-hide-result' as an invisibility spec for hiding
-portions of results lines."
-  (add-to-invisibility-spec '(org-babel-hide-result . t)))
-(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
-
-(defvar org-babel-hide-result-overlays nil
-  "Overlays hiding results.")
-
-(defun org-babel-result-hide-all ()
-  "Fold all results in the current buffer."
-  (interactive)
-  (org-babel-show-result-all)
-  (save-excursion
-    (while (re-search-forward org-babel-result-regexp nil t)
-      (save-excursion (goto-char (match-beginning 0))
-                      (org-babel-hide-result-toggle-maybe)))))
-
-(defun org-babel-show-result-all ()
-  "Unfold all results in the current buffer."
-  (mapc 'delete-overlay org-babel-hide-result-overlays)
-  (setq org-babel-hide-result-overlays nil))
-
-;;;###autoload
-(defun org-babel-hide-result-toggle-maybe ()
-  "Toggle visibility of result at point."
-  (interactive)
-  (let ((case-fold-search t))
-    (if (save-excursion
-          (beginning-of-line 1)
-          (looking-at org-babel-result-regexp))
-        (progn (org-babel-hide-result-toggle)
-               t) ;; to signal that we took action
-      nil))) ;; to signal that we did not
-
-(defun org-babel-hide-result-toggle (&optional force)
-  "Toggle the visibility of the current result."
-  (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (if (re-search-forward org-babel-result-regexp nil t)
-        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
-	      (end (progn
-		     (while (looking-at org-babel-multi-line-header-regexp)
-		       (forward-line 1))
-		     (goto-char (- (org-babel-result-end) 1)) (point)))
-	      ov)
-          (if (memq t (mapcar (lambda (overlay)
-                                (eq (overlay-get overlay 'invisible)
-				    'org-babel-hide-result))
-                              (overlays-at start)))
-              (if (or (not force) (eq force 'off))
-                  (mapc (lambda (ov)
-                          (when (member ov org-babel-hide-result-overlays)
-                            (setq org-babel-hide-result-overlays
-                                  (delq ov org-babel-hide-result-overlays)))
-                          (when (eq (overlay-get ov 'invisible)
-                                    'org-babel-hide-result)
-                            (delete-overlay ov)))
-                        (overlays-at start)))
-            (setq ov (make-overlay start end))
-            (overlay-put ov 'invisible 'org-babel-hide-result)
-            ;; make the block accessible to isearch
-            (overlay-put
-             ov 'isearch-open-invisible
-             (lambda (ov)
-               (when (member ov org-babel-hide-result-overlays)
-                 (setq org-babel-hide-result-overlays
-                       (delq ov org-babel-hide-result-overlays)))
-               (when (eq (overlay-get ov 'invisible)
-                         'org-babel-hide-result)
-                 (delete-overlay ov))))
-            (push ov org-babel-hide-result-overlays)))
-      (error "Not looking at a result line"))))
-
-;; org-tab-after-check-for-cycling-hook
-(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
-;; Remove overlays when changing major mode
-(add-hook 'org-mode-hook
-	  (lambda () (org-add-hook 'change-major-mode-hook
-				   'org-babel-show-result-all 'append 'local)))
-
-(defvar org-file-properties)
-(defun org-babel-params-from-properties (&optional lang)
-  "Retrieve parameters specified as properties.
-Return an association list of any source block params which
-may be specified in the properties of the current outline entry."
-  (save-match-data
-    (let (val sym)
-      (org-babel-parse-multiple-vars
-       (delq nil
-	     (mapcar
-	      (lambda (header-arg)
-		(and (setq val (org-entry-get (point) header-arg t))
-		     (cons (intern (concat ":" header-arg))
-			   (org-babel-read val))))
-	      (mapcar
-	       #'symbol-name
-	       (mapcar
-		#'car
-		(org-babel-combine-header-arg-lists
-		 org-babel-common-header-args-w-values
-		 (progn
-		   (setq sym (intern (concat "org-babel-header-args:" lang)))
-		   (and (boundp sym) (eval sym))))))))))))
-
-(defvar org-src-preserve-indentation)
-(defun org-babel-parse-src-block-match ()
-  "Parse the results from a match of the `org-babel-src-block-regexp'."
-  (let* ((block-indentation (length (match-string 1)))
-	 (lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
-	 (switches (match-string 3))
-         (body (org-no-properties
-		(let* ((body (match-string 5))
-		       (sub-length (- (length body) 1)))
-		  (if (and (> sub-length 0)
-			   (string= "\n" (substring body sub-length)))
-		      (substring body 0 sub-length)
-		    (or body "")))))
-	 (preserve-indentation (or org-src-preserve-indentation
-				   (save-match-data
-				     (string-match "-i\\>" switches)))))
-    (list lang
-          ;; get block body less properties, protective commas, and indentation
-          (with-temp-buffer
-            (save-match-data
-              (insert (org-unescape-code-in-string body))
-	      (unless preserve-indentation (org-do-remove-indentation))
-              (buffer-string)))
-	  (org-babel-merge-params
-	   org-babel-default-header-args
-           (org-babel-params-from-properties lang)
-	   (if (boundp lang-headers) (eval lang-headers) nil)
-	   (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) ""))))
-	  switches
-	  block-indentation)))
-
-(defun org-babel-parse-inline-src-block-match ()
-  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
-  (let* ((lang (org-no-properties (match-string 2)))
-         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
-    (list lang
-          (org-unescape-code-in-string (org-no-properties (match-string 5)))
-          (org-babel-merge-params
-           org-babel-default-inline-header-args
-           (org-babel-params-from-properties lang)
-           (if (boundp lang-headers) (eval lang-headers) nil)
-           (org-babel-parse-header-arguments
-            (org-no-properties (or (match-string 4) "")))))))
-
-(defun org-babel-balanced-split (string alts)
-  "Split STRING on instances of ALTS.
-ALTS is a cons of two character options where each option may be
-either the numeric code of a single character or a list of
-character alternatives.  For example to split on balanced
-instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
-  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
-	 (matched (lambda (ch last)
-		    (if (consp alts)
-			(and (funcall matches ch (cdr alts))
-			     (funcall matches last (car alts)))
-		      (funcall matches ch alts))))
-	 (balance 0) (last 0)
-	 quote partial lst)
-    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
-	    (setq balance (+ balance
-			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
-				   ((or (equal 93 ch) (equal 41 ch)) -1)
-				   (t 0))))
-	    (when (and (equal 34 ch) (not (equal 92 last)))
-	      (setq quote (not quote)))
-	    (setq partial (cons ch partial))
-	    (when (and (= balance 0) (not quote) (funcall matched ch last))
-	      (setq lst (cons (apply #'string (nreverse
-					       (if (consp alts)
-						   (cddr partial)
-						 (cdr partial))))
-			      lst))
-	      (setq partial nil))
-	    (setq last ch))
-	  (string-to-list string))
-    (nreverse (cons (apply #'string (nreverse partial)) lst))))
-
-(defun org-babel-join-splits-near-ch (ch list)
-  "Join splits where \"=\" is on either end of the split."
-  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
-	(first= (lambda (str) (= ch (aref str 0)))))
-    (reverse
-     (org-reduce (lambda (acc el)
-		   (let ((head (car acc)))
-		     (if (and head (or (funcall last= head) (funcall first= el)))
-			 (cons (concat head el) (cdr acc))
-		       (cons el acc))))
-		 list :initial-value nil))))
-
-(defun org-babel-parse-header-arguments (arg-string)
-  "Parse a string of header arguments returning an alist."
-  (when (> (length arg-string) 0)
-    (org-babel-parse-multiple-vars
-     (delq nil
-	   (mapcar
-	    (lambda (arg)
-	      (if (string-match
-		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
-		   arg)
-		  (cons (intern (match-string 1 arg))
-			(org-babel-read (org-babel-chomp (match-string 2 arg))))
-		(cons (intern (org-babel-chomp arg)) nil)))
-	    ((lambda (raw)
-	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
-	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
-
-(defun org-babel-parse-multiple-vars (header-arguments)
-  "Expand multiple variable assignments behind a single :var keyword.
-
-This allows expression of multiple variables with one :var as
-shown below.
-
-#+PROPERTY: var foo=1, bar=2"
-  (let (results)
-    (mapc (lambda (pair)
-	    (if (eq (car pair) :var)
-		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
-			(org-babel-join-splits-near-ch
-			 61 (org-babel-balanced-split (cdr pair) 32)))
-	      (push pair results)))
-	  header-arguments)
-    (nreverse results)))
-
-(defun org-babel-process-params (params)
-  "Expand variables in PARAMS and add summary parameters."
-  (let* ((processed-vars (mapcar (lambda (el)
-				   (if (consp (cdr el))
-				       (cdr el)
-				     (org-babel-ref-parse (cdr el))))
-				 (org-babel-get-header params :var)))
-	 (vars-and-names (if (and (assoc :colname-names params)
-				  (assoc :rowname-names params))
-			     (list processed-vars)
-			   (org-babel-disassemble-tables
-			    processed-vars
-			    (cdr (assoc :hlines params))
-			    (cdr (assoc :colnames params))
-			    (cdr (assoc :rownames params)))))
-	 (raw-result (or (cdr (assoc :results params)) ""))
-	 (result-params (append
-			 (split-string (if (stringp raw-result)
-					   raw-result
-					 (eval raw-result)))
-			 (cdr (assoc :result-params params)))))
-    (append
-     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
-     (list
-      (cons :colname-names (or (cdr (assoc :colname-names params))
-			       (cadr  vars-and-names)))
-      (cons :rowname-names (or (cdr (assoc :rowname-names params))
-			       (caddr vars-and-names)))
-      (cons :result-params result-params)
-      (cons :result-type  (cond ((member "output" result-params) 'output)
-				((member "value" result-params) 'value)
-				(t 'value))))
-     (org-babel-get-header params :var 'other))))
-
-;; row and column names
-(defun org-babel-del-hlines (table)
-  "Remove all 'hlines from TABLE."
-  (remove 'hline table))
-
-(defun org-babel-get-colnames (table)
-  "Return the column names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names."
-  (if (equal 'hline (nth 1 table))
-      (cons (cddr table) (car table))
-    (cons (cdr table) (car table))))
-
-(defun org-babel-get-rownames (table)
-  "Return the row names of TABLE.
-Return a cons cell, the `car' of which contains the TABLE less
-colnames, and the `cdr' of which contains a list of the column
-names.  Note: this function removes any hlines in TABLE."
-  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
-	 (width (apply 'max
-		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
-	 (table (funcall trans (mapcar (lambda (row)
-					 (if (not (equal row 'hline))
-					     row
-					   (setq row '())
-					   (dotimes (n width)
-					     (setq row (cons 'hline row)))
-					   row))
-				       table))))
-    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
-		  (funcall trans (cdr table)))
-	  (remove 'hline (car table)))))
-
-(defun org-babel-put-colnames (table colnames)
-  "Add COLNAMES to TABLE if they exist."
-  (if colnames (apply 'list colnames 'hline table) table))
-
-(defun org-babel-put-rownames (table rownames)
-  "Add ROWNAMES to TABLE if they exist."
-  (if rownames
-      (mapcar (lambda (row)
-                (if (listp row)
-                    (cons (or (pop rownames) "") row)
-                  row)) table)
-    table))
-
-(defun org-babel-pick-name (names selector)
-  "Select one out of an alist of row or column names.
-SELECTOR can be either a list of names in which case those names
-will be returned directly, or an index into the list NAMES in
-which case the indexed names will be return."
-  (if (listp selector)
-      selector
-    (when names
-      (if (and selector (symbolp selector) (not (equal t selector)))
-	  (cdr (assoc selector names))
-	(if (integerp selector)
-	    (nth (- selector 1) names)
-	  (cdr (car (last names))))))))
-
-(defun org-babel-disassemble-tables (vars hlines colnames rownames)
-  "Parse tables for further processing.
-Process the variables in VARS according to the HLINES,
-ROWNAMES and COLNAMES header arguments.  Return a list consisting
-of the vars, cnames and rnames."
-  (let (cnames rnames)
-    (list
-     (mapcar
-      (lambda (var)
-        (when (listp (cdr var))
-          (when (and (not (equal colnames "no"))
-                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
-                                       (not (member 'hline (cddr (cdr var)))))))
-            (let ((both (org-babel-get-colnames (cdr var))))
-              (setq cnames (cons (cons (car var) (cdr both))
-                                 cnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and rownames (not (equal rownames "no")))
-            (let ((both (org-babel-get-rownames (cdr var))))
-              (setq rnames (cons (cons (car var) (cdr both))
-                                 rnames))
-              (setq var (cons (car var) (car both)))))
-          (when (and hlines (not (equal hlines "yes")))
-            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
-        var)
-      vars)
-     (reverse cnames) (reverse rnames))))
-
-(defun org-babel-reassemble-table (table colnames rownames)
-  "Add column and row names to a table.
-Given a TABLE and set of COLNAMES and ROWNAMES add the names
-to the table for reinsertion to org-mode."
-  (if (listp table)
-      ((lambda (table)
-         (if (and colnames (listp (car table)) (= (length (car table))
-                                                  (length colnames)))
-             (org-babel-put-colnames table colnames) table))
-       (if (and rownames (= (length table) (length rownames)))
-           (org-babel-put-rownames table rownames) table))
-    table))
-
-(defun org-babel-where-is-src-block-head ()
-  "Find where the current source block begins.
-Return the point at the beginning of the current source
-block.  Specifically at the beginning of the #+BEGIN_SRC line.
-If the point is not on a source block then return nil."
-  (let ((initial (point)) (case-fold-search t) top bottom)
-    (or
-     (save-excursion ;; on a source name line or a #+header line
-       (beginning-of-line 1)
-       (and (or (looking-at org-babel-src-name-regexp)
-		(looking-at org-babel-multi-line-header-regexp))
-	    (progn
-	      (while (and (forward-line 1)
-			  (or (looking-at org-babel-src-name-regexp)
-			      (looking-at org-babel-multi-line-header-regexp))))
-	      (looking-at org-babel-src-block-regexp))
-            (point)))
-     (save-excursion ;; on a #+begin_src line
-       (beginning-of-line 1)
-       (and (looking-at org-babel-src-block-regexp)
-            (point)))
-     (save-excursion ;; inside a src block
-       (and
-        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
-        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
-        (< top initial) (< initial bottom)
-        (progn (goto-char top) (beginning-of-line 1)
-	       (looking-at org-babel-src-block-regexp))
-        (point))))))
-
-;;;###autoload
-(defun org-babel-goto-src-block-head ()
-  "Go to the beginning of the current code block."
-  (interactive)
-  ((lambda (head)
-     (if head (goto-char head) (error "Not currently in a code block")))
-   (org-babel-where-is-src-block-head)))
-
-;;;###autoload
-(defun org-babel-goto-named-src-block (name)
-  "Go to a named source-code block."
-  (interactive
-   (let ((completion-ignore-case t)
-	 (case-fold-search t)
-	 (under-point (thing-at-point 'line)))
-     (list (org-icompleting-read
-	    "source-block name: " (org-babel-src-block-names) nil t
-	    (cond
-	     ;; noweb
-	     ((string-match (org-babel-noweb-wrap) under-point)
-	      (let ((block-name (match-string 1 under-point)))
-		(string-match "[^(]*" block-name)
-		(match-string 0 block-name)))
-	     ;; #+call:
-	     ((string-match org-babel-lob-one-liner-regexp under-point)
-	      (let ((source-info (car (org-babel-lob-get-info))))
-		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
-		    (let ((source-name (match-string 1 source-info)))
-		      source-name))))
-	     ;; #+results:
-	     ((string-match (concat "#\\+" org-babel-results-keyword
-				    "\\:\s+\\([^\\(]*\\)") under-point)
-	      (match-string 1 under-point))
-	     ;; symbol-at-point
-	     ((and (thing-at-point 'symbol))
-	      (org-babel-find-named-block (thing-at-point 'symbol))
-	      (thing-at-point 'symbol))
-	     (""))))))
-  (let ((point (org-babel-find-named-block name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
-      (message "source-code block '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-block (name)
-  "Find a named source-code block.
-Return the location of the source block identified by source
-NAME, or nil if no such block exists.  Set match data according to
-org-babel-named-src-block-regexp."
-  (save-excursion
-    (let ((case-fold-search t)
-	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
-      (goto-char (point-min))
-      (when (or (re-search-forward regexp nil t)
-		(re-search-backward regexp nil t))
-        (match-beginning 0)))))
-
-(defun org-babel-src-block-names (&optional file)
-  "Returns the names of source blocks in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
-	(setq names (cons (match-string 3) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-goto-named-result (name)
-  "Go to a named result."
-  (interactive
-   (let ((completion-ignore-case t))
-     (list (org-icompleting-read "source-block name: "
-				 (org-babel-result-names) nil t))))
-  (let ((point (org-babel-find-named-result name)))
-    (if point
-        ;; taken from `org-open-at-point'
-        (progn (goto-char point) (org-show-context))
-      (message "result '%s' not found in this buffer" name))))
-
-(defun org-babel-find-named-result (name &optional point)
-  "Find a named result.
-Return the location of the result named NAME in the current
-buffer or nil if no such result exists."
-  (save-excursion
-    (let ((case-fold-search t))
-      (goto-char (or point (point-min)))
-      (catch 'is-a-code-block
-	(when (re-search-forward
-	       (concat org-babel-result-regexp
-		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
-	  (when (and (string= "name" (downcase (match-string 1)))
-		     (or (beginning-of-line 1)
-			 (looking-at org-babel-src-block-regexp)
-			 (looking-at org-babel-multi-line-header-regexp)))
-	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
-	  (beginning-of-line 0) (point))))))
-
-(defun org-babel-result-names (&optional file)
-  "Returns the names of results in FILE or the current buffer."
-  (save-excursion
-    (when file (find-file file)) (goto-char (point-min))
-    (let ((case-fold-search t) names)
-      (while (re-search-forward org-babel-result-w-name-regexp nil t)
-	(setq names (cons (match-string 4) names)))
-      names)))
-
-;;;###autoload
-(defun org-babel-next-src-block (&optional arg)
-  "Jump to the next source block.
-With optional prefix argument ARG, jump forward ARG many source blocks."
-  (interactive "P")
-  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
-  (condition-case nil
-      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No further code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-;;;###autoload
-(defun org-babel-previous-src-block (&optional arg)
-  "Jump to the previous source block.
-With optional prefix argument ARG, jump backward ARG many source blocks."
-  (interactive "P")
-  (condition-case nil
-      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
-    (error (error "No previous code blocks")))
-  (goto-char (match-beginning 0)) (org-show-context))
-
-(defvar org-babel-load-languages)
-
-;;;###autoload
-(defun org-babel-mark-block ()
-  "Mark current src block."
-  (interactive)
-  ((lambda (head)
-     (when head
-       (save-excursion
-	 (goto-char head)
-	 (looking-at org-babel-src-block-regexp))
-       (push-mark (match-end 5) nil t)
-       (goto-char (match-beginning 5))))
-   (org-babel-where-is-src-block-head)))
-
-(defun org-babel-demarcate-block (&optional arg)
-  "Wrap or split the code in the region or on the point.
-When called from inside of a code block the current block is
-split.  When called from outside of a code block a new code block
-is created.  In both cases if the region is demarcated and if the
-region is not active then the point is demarcated."
-  (interactive "P")
-  (let ((info (org-babel-get-src-block-info 'light))
-	(headers (progn (org-babel-where-is-src-block-head)
-			(match-string 4)))
-	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
-    (if info
-        (mapc
-         (lambda (place)
-           (save-excursion
-             (goto-char place)
-             (let ((lang (nth 0 info))
-                   (indent (make-string (nth 5 info) ? )))
-	       (when (string-match "^[[:space:]]*$"
-				   (buffer-substring (point-at-bol)
-						     (point-at-eol)))
-		 (delete-region (point-at-bol) (point-at-eol)))
-               (insert (concat
-			(if (looking-at "^") "" "\n")
-			indent "#+end_src\n"
-			(if arg stars indent) "\n"
-			indent "#+begin_src " lang
-			(if (> (length headers) 1)
-			    (concat " " headers) headers)
-			(if (looking-at "[\n\r]")
-			    ""
-			  (concat "\n" (make-string (current-column) ? )))))))
-	   (move-end-of-line 2))
-         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
-      (let ((start (point))
-	    (lang (org-icompleting-read "Lang: "
-					(mapcar (lambda (el) (symbol-name (car el)))
-						org-babel-load-languages)))
-	    (body (delete-and-extract-region
-		   (if (org-region-active-p) (mark) (point)) (point))))
-	(insert (concat (if (looking-at "^") "" "\n")
-			(if arg (concat stars "\n") "")
-			"#+begin_src " lang "\n"
-			body
-			(if (or (= (length body) 0)
-				(string-match "[\r\n]$" body)) "" "\n")
-			"#+end_src\n"))
-	(goto-char start) (move-end-of-line 1)))))
-
-(defvar org-babel-lob-one-liner-regexp)
-(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
-  "Find where the current source block results begin.
-Return the point at the beginning of the result of the current
-source block.  Specifically at the beginning of the results line.
-If no result exists for this block then create a results line
-following the source block."
-  (save-excursion
-    (let* ((case-fold-search t)
-	   (on-lob-line (save-excursion
-			  (beginning-of-line 1)
-			  (looking-at org-babel-lob-one-liner-regexp)))
-	   (inlinep (when (org-babel-get-inline-src-block-matches)
-		      (match-end 0)))
-	   (name (if on-lob-line
-		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
-		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
-	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
-	   found beg end)
-      (when head (goto-char head))
-      (org-with-wide-buffer
-       (setq
-	found ;; was there a result (before we potentially insert one)
-	(or
-	 inlinep
-	 (and
-	  ;; named results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it does not need to be rebuilt, then don't set end
-	  ;; - if it does need to be rebuilt then do set end
-	  name (setq beg (org-babel-find-named-result name))
-	  (prog1 beg
-	    (when (and hash (not (string= hash (match-string 3))))
-	      (goto-char beg) (setq end beg) ;; beginning of result
-	      (forward-line 1)
-	      (delete-region end (org-babel-result-end)) nil)))
-	 (and
-	  ;; unnamed results:
-	  ;; - return t if it is found, else return nil
-	  ;; - if it is found, and the hash doesn't match, delete and set end
-	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
-	  (progn (end-of-line 1)
-		 (if (eobp) (insert "\n") (forward-char 1))
-		 (setq end (point))
-		 (or (and (not name)
-			  (progn ;; unnamed results line already exists
-			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
-			    (beginning-of-line 1)
-			    (looking-at
-			     (concat org-babel-result-regexp "\n")))
-			  (prog1 (point)
-			    ;; must remove and rebuild if hash!=old-hash
-			    (if (and hash (not (string= hash (match-string 3))))
-				(prog1 nil
-				  (forward-line 1)
-				  (delete-region
-				   end (org-babel-result-end)))
-			      (setq end nil))))))))))
-      (if (not (and insert end)) found
-	(goto-char end)
-	(unless beg
-	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
-	(insert (concat
-		 (when (wholenump indent) (make-string indent ? ))
-		 "#+" org-babel-results-keyword
-		 (when hash (concat "["hash"]"))
-		 ":"
-		 (when name (concat " " name)) "\n"))
-	(unless beg (insert "\n") (backward-char))
-	(beginning-of-line 0)
-	(if hash (org-babel-hide-hash))
-	(point)))))
-
-(defvar org-block-regexp)
-(defun org-babel-read-result ()
-  "Read the result at `point' into emacs-lisp."
-  (let ((case-fold-search t) result-string)
-    (cond
-     ((org-at-table-p) (org-babel-read-table))
-     ((org-at-item-p) (org-babel-read-list))
-     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
-     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
-     ((looking-at "^[ \t]*: ")
-      (setq result-string
-	    (org-babel-trim
-	     (mapconcat (lambda (line)
-                          (if (and (> (length line) 1)
-                                   (string-match "^[ \t]*: \\(.+\\)" line))
-                              (match-string 1 line)
-                            line))
-			(split-string
-			 (buffer-substring
-                          (point) (org-babel-result-end)) "[\r\n]+")
-			"\n")))
-      (or (org-babel-number-p result-string) result-string))
-     ((looking-at org-babel-result-regexp)
-      (save-excursion (forward-line 1) (org-babel-read-result))))))
-
-(defun org-babel-read-table ()
-  "Read the table at `point' into emacs-lisp."
-  (mapcar (lambda (row)
-            (if (and (symbolp row) (equal row 'hline)) row
-              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
-          (org-table-to-lisp)))
-
-(defun org-babel-read-list ()
-  "Read the list at `point' into emacs-lisp."
-  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
-	  (mapcar #'cadr (cdr (org-list-parse-list)))))
-
-(defvar org-link-types-re)
-(defun org-babel-read-link ()
-  "Read the link at `point' into emacs-lisp.
-If the path of the link is a file path it is expanded using
-`expand-file-name'."
-  (let* ((case-fold-search t)
-         (raw (and (looking-at org-bracket-link-regexp)
-                   (org-no-properties (match-string 1))))
-         (type (and (string-match org-link-types-re raw)
-                    (match-string 1 raw))))
-    (cond
-     ((not type) (expand-file-name raw))
-     ((string= type "file")
-      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
-           (expand-file-name (match-string 2 raw))))
-     (t raw))))
-
-(defun org-babel-format-result (result &optional sep)
-  "Format RESULT for writing to file."
-  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
-    (if (listp result)
-	;; table result
-	(orgtbl-to-generic
-	 result (list :sep (or sep "\t") :fmt echo-res))
-      ;; scalar result
-      (funcall echo-res result))))
-
-(defun org-babel-insert-result
-  (result &optional result-params info hash indent lang)
-  "Insert RESULT into the current buffer.
-By default RESULT is inserted after the end of the
-current source block.  With optional argument RESULT-PARAMS
-controls insertion of results in the org-mode file.
-RESULT-PARAMS can take the following values:
-
-replace - (default option) insert results after the source block
-          replacing any previously inserted results
-
-silent -- no results are inserted into the Org-mode buffer but
-          the results are echoed to the minibuffer and are
-          ingested by Emacs (a potentially time consuming
-          process)
-
-file ---- the results are interpreted as a file path, and are
-          inserted into the buffer using the Org-mode file syntax
-
-list ---- the results are interpreted as an Org-mode list.
-
-raw ----- results are added directly to the Org-mode file.  This
-          is a good option if you code block will output org-mode
-          formatted text.
-
-drawer -- results are added directly to the Org-mode file as with
-          \"raw\", but are wrapped in a RESULTS drawer, allowing
-          them to later be replaced or removed automatically.
-
-org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
-          They are not comma-escaped when inserted, but Org syntax
-          here will be discarded when exporting the file.
-
-html ---- results are added inside of a #+BEGIN_HTML block.  This
-          is a good option if you code block will output html
-          formatted text.
-
-latex --- results are added inside of a #+BEGIN_LATEX block.
-          This is a good option if you code block will output
-          latex formatted text.
-
-code ---- the results are extracted in the syntax of the source
-          code of the language being evaluated and are added
-          inside of a #+BEGIN_SRC block with the source-code
-          language set appropriately.  Note this relies on the
-          optional LANG argument."
-  (if (stringp result)
-      (progn
-        (setq result (org-no-properties result))
-        (when (member "file" result-params)
-	  (setq result (org-babel-result-to-file
-			result (when (assoc :file-desc (nth 2 info))
-				 (or (cdr (assoc :file-desc (nth 2 info)))
-				     result))))))
-    (unless (listp result) (setq result (format "%S" result))))
-  (if (and result-params (member "silent" result-params))
-      (progn
-	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
-	result)
-    (save-excursion
-      (let* ((inlinep
-	      (save-excursion
-		(when (or (org-babel-get-inline-src-block-matches)
-			  (org-babel-get-lob-one-liner-matches))
-		  (goto-char (match-end 0))
-		  (insert (if (listp result) "\n" " "))
-		  (point))))
-	     (existing-result (unless inlinep
-				(org-babel-where-is-src-block-result
-				 t info hash indent)))
-	     (results-switches
-	      (cdr (assoc :results_switches (nth 2 info))))
-	     (visible-beg (copy-marker (point-min)))
-	     (visible-end (copy-marker (point-max)))
-	     ;; When results exist outside of the current visible
-	     ;; region of the buffer, be sure to widen buffer to
-	     ;; update them.
-	     (outside-scope-p (and existing-result
-				   (or (> visible-beg existing-result)
-				       (<= visible-end existing-result))))
-	     beg end)
-	(when (and (stringp result)  ; ensure results end in a newline
-		   (not inlinep)
-		   (> (length result) 0)
-		   (not (or (string-equal (substring result -1) "\n")
-			    (string-equal (substring result -1) "\r"))))
-	  (setq result (concat result "\n")))
-	(unwind-protect
-	    (progn
-	      (when outside-scope-p (widen))
-	      (if (not existing-result)
-		  (setq beg (or inlinep (point)))
-		(goto-char existing-result)
-		(save-excursion
-		  (re-search-forward "#" nil t)
-		  (setq indent (- (current-column) 1)))
-		(forward-line 1)
-		(setq beg (point))
-		(cond
-		 ((member "replace" result-params)
-		  (delete-region (point) (org-babel-result-end)))
-		 ((member "append" result-params)
-		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
-		 ((member "prepend" result-params)))) ; already there
-	      (setq results-switches
-		    (if results-switches (concat " " results-switches) ""))
-	      (let ((wrap (lambda (start finish &optional no-escape)
-			    (goto-char end) (insert (concat finish "\n"))
-			    (goto-char beg) (insert (concat start "\n"))
-			    (unless no-escape
-			      (org-escape-code-in-region (point) end))
-			    (goto-char end) (goto-char (point-at-eol))
-			    (setq end (point-marker))))
-		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
-		;; insert results based on type
-		(cond
-		 ;; do nothing for an empty result
-		 ((null result))
-		 ;; insert a list if preferred
-		 ((member "list" result-params)
-		  (insert
-		   (org-babel-trim
-		    (org-list-to-generic
-		     (cons 'unordered
-			   (mapcar
-			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
-			    (if (listp result) result (list result))))
-		     '(:splicep nil :istart "- " :iend "\n")))
-		   "\n"))
-		 ;; assume the result is a table if it's not a string
-		 ((funcall proper-list-p result)
-		  (goto-char beg)
-		  (insert (concat (orgtbl-to-orgtbl
-				   (if (or (eq 'hline (car result))
-					   (and (listp (car result))
-						(listp (cdr (car result)))))
-				       result (list result))
-				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
-		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
-		 ((and (listp result) (not (funcall proper-list-p result)))
-		  (insert (format "%s\n" result)))
-		 ((member "file" result-params)
-		  (when inlinep (goto-char inlinep))
-		  (insert result))
-		 (t (goto-char beg) (insert result)))
-		(when (funcall proper-list-p result) (goto-char (org-table-end)))
-		(setq end (point-marker))
-		;; possibly wrap result
-		(cond
-		 ((assoc :wrap (nth 2 info))
-		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
-		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
-		 ((member "html" result-params)
-		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
-		 ((member "latex" result-params)
-		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
-		 ((member "org" result-params)
-		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
-		 ((member "code" result-params)
-		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
-			   "#+END_SRC"))
-		 ((member "raw" result-params)
-		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
-		 ((or (member "drawer" result-params)
-		      ;; Stay backward compatible with <7.9.2
-		      (member "wrap" result-params))
-		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
-		 ((and (not (funcall proper-list-p result))
-		       (not (member "file" result-params)))
-		  (org-babel-examplize-region beg end results-switches)
-		  (setq end (point)))))
-	      ;; possibly indent the results to match the #+results line
-	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
-			 ;; in this case `table-align' does the work for us
-			 (not (and (listp result)
-				   (member "append" result-params))))
-		(indent-rigidly beg end indent))
-	      (if (null result)
-		  (if (member "value" result-params)
-		      (message "Code block returned no value.")
-		    (message "Code block produced no output."))
-		(message "Code block evaluation complete.")))
-	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
-	  (set-marker visible-beg nil)
-	  (set-marker visible-end nil))))))
-
-(defun org-babel-remove-result (&optional info)
-  "Remove the result of the current source block."
-  (interactive)
-  (let ((location (org-babel-where-is-src-block-result nil info)) start)
-    (when location
-      (setq start (- location 1))
-      (save-excursion
-        (goto-char location) (forward-line 1)
-        (delete-region start (org-babel-result-end))))))
-
-(defun org-babel-result-end ()
-  "Return the point at the end of the current set of results."
-  (save-excursion
-    (cond
-     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
-     ((org-at-item-p) (let* ((struct (org-list-struct))
-			     (prvs (org-list-prevs-alist struct)))
-			(org-list-get-list-end (point-at-bol) struct prvs)))
-     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
-      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
-	     (forward-char 1) (point)))
-     (t
-      (let ((case-fold-search t))
-	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
-	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
-				      nil t)
-		   (forward-char 1))
-	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
-	    (forward-line 1))))
-      (point)))))
-
-(defun org-babel-result-to-file (result &optional description)
-  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
-If the `default-directory' is different from the containing
-file's directory then expand relative links."
-  (when (stringp result)
-    (format "[[file:%s]%s]"
-	    (if (and default-directory
-		     buffer-file-name
-		     (not (string= (expand-file-name default-directory)
-				   (expand-file-name
-				    (file-name-directory buffer-file-name)))))
-		(expand-file-name result default-directory)
-	      result)
-	    (if description (concat "[" description "]") ""))))
-
-(defvar org-babel-capitalize-examplize-region-markers nil
-  "Make true to capitalize begin/end example markers inserted by code blocks.")
-
-(defun org-babel-examplize-region (beg end &optional results-switches)
-  "Comment out region using the inline '==' or ': ' org example quote."
-  (interactive "*r")
-  (let ((chars-between (lambda (b e)
-			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
-	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
-				     (upcase str) str))))
-    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
-	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
-	(save-excursion
-	  (goto-char beg)
-	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
-				   (delete-region beg end)))))
-      (let ((size (count-lines beg end)))
-	(save-excursion
-	  (cond ((= size 0))	      ; do nothing for an empty result
-		((< size org-babel-min-lines-for-block-output)
-		 (goto-char beg)
-		 (dotimes (n size)
-		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
-		(t
-		 (goto-char beg)
-		 (insert (if results-switches
-			     (format "%s%s\n"
-				     (funcall maybe-cap "#+begin_example")
-				     results-switches)
-			   (funcall maybe-cap "#+begin_example\n")))
-		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
-		 (insert (funcall maybe-cap "#+end_example\n")))))))))
-
-(defun org-babel-update-block-body (new-body)
-  "Update the body of the current code block to NEW-BODY."
-  (if (not (org-babel-where-is-src-block-head))
-      (error "Not in a source block")
-    (save-match-data
-      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
-    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
-
-(defun org-babel-merge-params (&rest plists)
-  "Combine all parameter association lists in PLISTS.
-Later elements of PLISTS override the values of previous elements.
-This takes into account some special considerations for certain
-parameters when merging lists."
-  (let* ((results-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
-	 (exports-exclusive-groups
-	  (mapcar (lambda (group) (mapcar #'symbol-name group))
-		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
-	 (variable-index 0)
-	 (e-merge (lambda (exclusive-groups &rest result-params)
-		    ;; maintain exclusivity of mutually exclusive parameters
-		    (let (output)
-		      (mapc (lambda (new-params)
-			      (mapc (lambda (new-param)
-				      (mapc (lambda (exclusive-group)
-					      (when (member new-param exclusive-group)
-						(mapcar (lambda (excluded-param)
-							  (setq output
-								(delete
-								 excluded-param
-								 output)))
-							exclusive-group)))
-					    exclusive-groups)
-				      (setq output (org-uniquify
-						    (cons new-param output))))
-				    new-params))
-			    result-params)
-		      output)))
-	 params results exports tangle noweb cache vars shebang comments padline)
-
-    (mapc
-     (lambda (plist)
-       (mapc
-	(lambda (pair)
-	  (case (car pair)
-	    (:var
-	     (let ((name (if (listp (cdr pair))
-			     (cadr pair)
-			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
-					      (cdr pair))
-				(intern (match-string 1 (cdr pair)))))))
-	       (if name
-		   (setq vars
-			 (append
-			  (if (member name (mapcar #'car vars))
-			      (delq nil
-				    (mapcar
-				     (lambda (p)
-				       (unless (equal (car p) name) p))
-				     vars))
-			    vars)
-			  (list (cons name pair))))
-		 ;; if no name is given and we already have named variables
-		 ;; then assign to named variables in order
-		 (if (and vars (nth variable-index vars))
-		     (prog1 (setf (cddr (nth variable-index vars))
-				  (concat (symbol-name
-					   (car (nth variable-index vars)))
-					  "=" (cdr pair)))
-		       (incf variable-index))
-		   (error "Variable \"%s\" must be assigned a default value"
-			  (cdr pair))))))
-	    (:results
-	     (setq results (funcall e-merge results-exclusive-groups
-				    results
-				    (split-string
-				     (let ((r (cdr pair)))
-				       (if (stringp r) r (eval r)))))))
-	    (:file
-	     (when (cdr pair)
-	       (setq results (funcall e-merge results-exclusive-groups
-				      results '("file")))
-	       (unless (or (member "both" exports)
-			   (member "none" exports)
-			   (member "code" exports))
-		 (setq exports (funcall e-merge exports-exclusive-groups
-					exports '("results"))))
-	       (setq params (cons pair (assq-delete-all (car pair) params)))))
-	    (:exports
-	     (setq exports (funcall e-merge exports-exclusive-groups
-				    exports (split-string (cdr pair)))))
-	    (:tangle ;; take the latest -- always overwrite
-	     (setq tangle (or (list (cdr pair)) tangle)))
-	    (:noweb
-	     (setq noweb (funcall e-merge
-				  '(("yes" "no" "tangle" "no-export"
-				     "strip-export" "eval"))
-				  noweb
-				  (split-string (or (cdr pair) "")))))
-	    (:cache
-	     (setq cache (funcall e-merge '(("yes" "no")) cache
-				  (split-string (or (cdr pair) "")))))
-	    (:padline
-	     (setq padline (funcall e-merge '(("yes" "no")) padline
-				    (split-string (or (cdr pair) "")))))
-	    (:shebang ;; take the latest -- always overwrite
-	     (setq shebang (or (list (cdr pair)) shebang)))
-	    (:comments
-	     (setq comments (funcall e-merge '(("yes" "no")) comments
-				     (split-string (or (cdr pair) "")))))
-	    (t ;; replace: this covers e.g. :session
-	     (setq params (cons pair (assq-delete-all (car pair) params))))))
-	plist))
-     plists)
-    (setq vars (reverse vars))
-    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
-    (mapc
-     (lambda (hd)
-       (let ((key (intern (concat ":" (symbol-name hd))))
-	     (val (eval hd)))
-	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
-     '(results exports tangle noweb padline cache shebang comments))
-    params))
-
-(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
-  "Set to true to use regular expressions to expand noweb references.
-This results in much faster noweb reference expansion but does
-not properly allow code blocks to inherit the \":noweb-ref\"
-header argument from buffer or subtree wide properties.")
-
-(defun org-babel-noweb-p (params context)
-  "Check if PARAMS require expansion in CONTEXT.
-CONTEXT may be one of :tangle, :export or :eval."
-  (let* (intersect
-	 (intersect (lambda (as bs)
-		      (when as
-			(if (member (car as) bs)
-			    (car as)
-			  (funcall intersect (cdr as) bs))))))
-    (funcall intersect (case context
-			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
-			 (:eval   '("yes" "no-export" "strip-export" "eval"))
-			 (:export '("yes")))
-	     (split-string (or (cdr (assoc :noweb params)) "")))))
-
-(defun org-babel-expand-noweb-references (&optional info parent-buffer)
-  "Expand Noweb references in the body of the current source code block.
-
-For example the following reference would be replaced with the
-body of the source-code block named 'example-block'.
-
-<<example-block>>
-
-Note that any text preceding the <<foo>> construct on a line will
-be interposed between the lines of the replacement text.  So for
-example if <<foo>> is placed behind a comment, then the entire
-replacement text will also be commented.
-
-This function must be called from inside of the buffer containing
-the source-code block which holds BODY.
-
-In addition the following syntax can be used to insert the
-results of evaluating the source-code block named 'example-block'.
-
-<<example-block()>>
-
-Any optional arguments can be passed to example-block by placing
-the arguments inside the parenthesis following the convention
-defined by `org-babel-lob'.  For example
-
-<<example-block(a=9)>>
-
-would set the value of argument \"a\" equal to \"9\".  Note that
-these arguments are not evaluated in the current source-code
-block but are passed literally to the \"example-block\"."
-  (let* ((parent-buffer (or parent-buffer (current-buffer)))
-         (info (or info (org-babel-get-src-block-info)))
-         (lang (nth 0 info))
-         (body (nth 1 info))
-	 (ob-nww-start org-babel-noweb-wrap-start)
-	 (ob-nww-end org-babel-noweb-wrap-end)
-	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
-	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
-			    ":noweb-ref[ \t]+" "\\)"))
-         (new-body "")
-	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
-	 (c-wrap (lambda (text)
-		   (with-temp-buffer
-		     (funcall (intern (concat lang "-mode")))
-		     (comment-region (point) (progn (insert text) (point)))
-		     (org-babel-trim (buffer-string)))))
-	 index source-name evaluate prefix blocks-in-buffer)
-    (with-temp-buffer
-      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
-      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
-      (insert body) (goto-char (point-min))
-      (setq index (point))
-      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
-	(save-match-data (setf source-name (match-string 1)))
-	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
-	(save-match-data
-	  (setq prefix
-		(buffer-substring (match-beginning 0)
-				  (save-excursion
-				    (beginning-of-line 1) (point)))))
-	;; add interval to new-body (removing noweb reference)
-	(goto-char (match-beginning 0))
-	(funcall nb-add (buffer-substring index (point)))
-	(goto-char (match-end 0))
-	(setq index (point))
-	(funcall nb-add
-		 (with-current-buffer parent-buffer
-		   (save-restriction
-		     (widen)
-		     (mapconcat ;; interpose PREFIX between every line
-		      #'identity
-		      (split-string
-		       (if evaluate
-			   (let ((raw (org-babel-ref-resolve source-name)))
-			     (if (stringp raw) raw (format "%S" raw)))
-			 (or
-			  ;; retrieve from the library of babel
-			  (nth 2 (assoc (intern source-name)
-					org-babel-library-of-babel))
-			  ;; return the contents of headlines literally
-			  (save-excursion
-			    (when (org-babel-ref-goto-headline-id source-name)
-			      (org-babel-ref-headline-body)))
-			  ;; find the expansion of reference in this buffer
-			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
-				expansion)
-			    (save-excursion
-			      (goto-char (point-min))
-			      (if org-babel-use-quick-and-dirty-noweb-expansion
-				  (while (re-search-forward rx nil t)
-				    (let* ((i (org-babel-get-src-block-info 'light))
-					   (body (org-babel-expand-noweb-references i))
-					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						    "\n"))
-					   (full (if comment
-						     ((lambda (cs)
-							(concat (funcall c-wrap (car cs)) "\n"
-								body "\n"
-								(funcall c-wrap (cadr cs))))
-						      (org-babel-tangle-comment-links i))
-						   body)))
-				      (setq expansion (cons sep (cons full expansion)))))
-				(org-babel-map-src-blocks nil
-				  (let ((i (org-babel-get-src-block-info 'light)))
-				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
-						     (nth 4 i))
-						 source-name)
-				      (let* ((body (org-babel-expand-noweb-references i))
-					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
-						      "\n"))
-					     (full (if comment
-						       ((lambda (cs)
-							  (concat (funcall c-wrap (car cs)) "\n"
-								  body "\n"
-								  (funcall c-wrap (cadr cs))))
-							(org-babel-tangle-comment-links i))
-						     body)))
-					(setq expansion
-					      (cons sep (cons full expansion)))))))))
-			    (and expansion
-				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
-			  ;; possibly raise an error if named block doesn't exist
-			  (if (member lang org-babel-noweb-error-langs)
-			      (error "%s" (concat
-					   (org-babel-noweb-wrap source-name)
-					   "could not be resolved (see "
-					   "`org-babel-noweb-error-langs')"))
-			    "")))
-		       "[\n\r]") (concat "\n" prefix))))))
-      (funcall nb-add (buffer-substring index (point-max))))
-    new-body))
-
-(defun org-babel-script-escape (str &optional force)
-  "Safely convert tables into elisp lists."
-  (let (in-single in-double out)
-    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
-     (if (or force
-	     (and (stringp str)
-		  (> (length str) 2)
-		  (or (and (string-equal "[" (substring str 0 1))
-			   (string-equal "]" (substring str -1)))
-		      (and (string-equal "{" (substring str 0 1))
-			   (string-equal "}" (substring str -1)))
-		      (and (string-equal "(" (substring str 0 1))
-			   (string-equal ")" (substring str -1))))))
-	 (org-babel-read
-	  (concat
-	   "'"
-	   (progn
-	     (mapc
-	      (lambda (ch)
-		(setq
-		 out
-		 (case ch
-		   (91 (if (or in-double in-single) ; [
-			   (cons 91 out)
-			 (cons 40 out)))
-		   (93 (if (or in-double in-single) ; ]
-			   (cons 93 out)
-			 (cons 41 out)))
-		   (123 (if (or in-double in-single) ; {
-			    (cons 123 out)
-			  (cons 40 out)))
-		   (125 (if (or in-double in-single) ; }
-			    (cons 125 out)
-			  (cons 41 out)))
-		   (44 (if (or in-double in-single) ; ,
-			   (cons 44 out) (cons 32 out)))
-		   (39 (if in-double	; '
-			   (cons 39 out)
-			 (setq in-single (not in-single)) (cons 34 out)))
-		   (34 (if in-single	; "
-			   (append (list 34 32) out)
-			 (setq in-double (not in-double)) (cons 34 out)))
-		   (t  (cons ch out)))))
-	      (string-to-list str))
-	     (apply #'string (reverse out)))))
-       str))))
-
-(defun org-babel-read (cell &optional inhibit-lisp-eval)
-  "Convert the string value of CELL to a number if appropriate.
-Otherwise if cell looks like lisp (meaning it starts with a
-\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
-return it unmodified as a string.  Optional argument NO-LISP-EVAL
-inhibits lisp evaluation for situations in which is it not
-appropriate."
-  (if (and (stringp cell) (not (equal cell "")))
-      (or (org-babel-number-p cell)
-          (if (and (not inhibit-lisp-eval)
-		   (member (substring cell 0 1) '("(" "'" "`" "[")))
-              (eval (read cell))
-            (if (string= (substring cell 0 1) "\"")
-		(read cell)
-	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
-    cell))
-
-(defun org-babel-number-p (string)
-  "If STRING represents a number return its value."
-  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
-           (= (length (substring string (match-beginning 0)
-				 (match-end 0)))
-	      (length string)))
-      (string-to-number string)))
-
-(defun org-babel-import-elisp-from-file (file-name &optional separator)
-  "Read the results located at FILE-NAME into an elisp table.
-If the table is trivial, then return it as a scalar."
-  (let (result)
-    (save-window-excursion
-      (with-temp-buffer
-	(condition-case err
-	    (progn
-	      (org-table-import file-name separator)
-	      (delete-file file-name)
-	      (setq result (mapcar (lambda (row)
-				     (mapcar #'org-babel-string-read row))
-				   (org-table-to-lisp))))
-	  (error (message "Error reading results: %s" err) nil)))
-      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
-	  (if (consp (car result))
-	      (if (null (cdr (car result)))
-		  (caar result)
-		result)
-	    (car result))
-	result))))
-
-(defun org-babel-string-read (cell)
-  "Strip nested \"s from around strings."
-  (org-babel-read (or (and (stringp cell)
-                           (string-match "\\\"\\(.+\\)\\\"" cell)
-                           (match-string 1 cell))
-                      cell) t))
-
-(defun org-babel-reverse-string (string)
-  "Return the reverse of STRING."
-  (apply 'string (reverse (string-to-list string))))
-
-(defun org-babel-chomp (string &optional regexp)
-  "Strip trailing spaces and carriage returns from STRING.
-Default regexp used is \"[ \f\t\n\r\v]\" but can be
-overwritten by specifying a regexp as a second argument."
-  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
-    (while (and (> (length string) 0)
-                (string-match regexp (substring string -1)))
-      (setq string (substring string 0 -1)))
-    string))
-
-(defun org-babel-trim (string &optional regexp)
-  "Strip leading and trailing spaces and carriage returns from STRING.
-Like `org-babel-chomp' only it runs on both the front and back
-of the string."
-  (org-babel-chomp (org-babel-reverse-string
-                    (org-babel-chomp (org-babel-reverse-string string) regexp))
-                   regexp))
-
-(defvar org-babel-org-babel-call-process-region-original nil)
-(defun org-babel-tramp-handle-call-process-region
-  (start end program &optional delete buffer display &rest args)
-  "Use Tramp to handle `call-process-region'.
-Fixes a bug in `tramp-handle-call-process-region'."
-  (if (and (featurep 'tramp) (file-remote-p default-directory))
-      (let ((tmpfile (tramp-compat-make-temp-file "")))
-	(write-region start end tmpfile)
-	(when delete (delete-region start end))
-	(unwind-protect
-	    ;;	(apply 'call-process program tmpfile buffer display args)
-            ;; bug in tramp
-	    (apply 'process-file program tmpfile buffer display args)
-	  (delete-file tmpfile)))
-    ;; org-babel-call-process-region-original is the original emacs
-    ;; definition.  It is in scope from the let binding in
-    ;; org-babel-execute-src-block
-    (apply org-babel-call-process-region-original
-           start end program delete buffer display args)))
-
-(defun org-babel-local-file-name (file)
-  "Return the local name component of FILE."
-  (if (file-remote-p file)
-      (let (localname)
-	(with-parsed-tramp-file-name file nil
-				     localname))
-    file))
-
-(defun org-babel-process-file-name (name &optional no-quote-p)
-  "Prepare NAME to be used in an external process.
-If NAME specifies a remote location, the remote portion of the
-name is removed, since in that case the process will be executing
-remotely.  The file name is then processed by `expand-file-name'.
-Unless second argument NO-QUOTE-P is non-nil, the file name is
-additionally processed by `shell-quote-argument'"
-  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
-   (expand-file-name (org-babel-local-file-name name))))
-
-(defvar org-babel-temporary-directory)
-(unless (or noninteractive (boundp 'org-babel-temporary-directory))
-  (defvar org-babel-temporary-directory
-    (or (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory)
-	     org-babel-temporary-directory)
-	(make-temp-file "babel-" t))
-    "Directory to hold temporary files created to execute code blocks.
-Used by `org-babel-temp-file'.  This directory will be removed on
-Emacs shutdown."))
-
-(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
-  "Call the code to parse raw string results according to RESULT-PARAMS."
-  (declare (indent 1))
-  `(unless (member "none" ,result-params)
-     (if (or (member "scalar" ,result-params)
-	     (member "verbatim" ,result-params)
-	     (member "html" ,result-params)
-	     (member "code" ,result-params)
-	     (member "pp" ,result-params)
-	     (and (member "output" ,result-params)
-		  (not (member "table" ,result-params))))
-	 ,scalar-form
-       ,@table-forms)))
-
-(defun org-babel-temp-file (prefix &optional suffix)
-  "Create a temporary file in the `org-babel-temporary-directory'.
-Passes PREFIX and SUFFIX directly to `make-temp-file' with the
-value of `temporary-file-directory' temporarily set to the value
-of `org-babel-temporary-directory'."
-  (if (file-remote-p default-directory)
-      (make-temp-file
-       (concat (file-remote-p default-directory)
-	       (expand-file-name
-		prefix temporary-file-directory)
-	       nil suffix))
-    (let ((temporary-file-directory
-	   (or (and (boundp 'org-babel-temporary-directory)
-		    (file-exists-p org-babel-temporary-directory)
-		    org-babel-temporary-directory)
-	       temporary-file-directory)))
-      (make-temp-file prefix nil suffix))))
-
-(defun org-babel-remove-temporary-directory ()
-  "Remove `org-babel-temporary-directory' on Emacs shutdown."
-  (when (and (boundp 'org-babel-temporary-directory)
-	     (file-exists-p org-babel-temporary-directory))
-    ;; taken from `delete-directory' in files.el
-    (condition-case nil
-	(progn
-	  (mapc (lambda (file)
-		  ;; This test is equivalent to
-		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
-		  ;; but more efficient
-		  (if (eq t (car (file-attributes file)))
-		      (delete-directory file)
-		    (delete-file file)))
-		;; We do not want to delete "." and "..".
-		(directory-files org-babel-temporary-directory 'full
-				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
-	  (delete-directory org-babel-temporary-directory))
-      (error
-       (message "Failed to remove temporary Org-babel directory %s"
-		(if (boundp 'org-babel-temporary-directory)
-		    org-babel-temporary-directory
-		  "[directory not defined]"))))))
-
-(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
-
-(provide 'ob-core)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-core.el ends here
diff --git a/lisp/ob-eval.el b/lisp/ob-eval.el
deleted file mode 100644
index ddad067..0000000
--- a/lisp/ob-eval.el
+++ /dev/null
@@ -1,261 +0,0 @@
-;;; ob-eval.el --- org-babel functions for external code evaluation
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research, comint
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; These functions build existing Emacs support for executing external
-;; shell commands.
-
-;;; Code:
-(eval-when-compile (require 'cl))
-
-(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
-
-(defun org-babel-eval-error-notify (exit-code stderr)
-  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
-  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
-    (with-current-buffer buf
-      (goto-char (point-max))
-      (save-excursion (insert stderr)))
-    (display-buffer buf))
-  (message "Babel evaluation exited with code %S" exit-code))
-
-(defun org-babel-eval (cmd body)
-  "Run CMD on BODY.
-If CMD succeeds then return its results, otherwise display
-STDERR with `org-babel-eval-error-notify'."
-  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
-    (with-current-buffer err-buff (erase-buffer))
-    (with-temp-buffer
-      (insert body)
-      (setq exit-code
-	    (org-babel-shell-command-on-region
-	     (point-min) (point-max) cmd t 'replace err-buff))
-      (if (or (not (numberp exit-code)) (> exit-code 0))
-	  (progn
-	    (with-current-buffer err-buff
-	      (org-babel-eval-error-notify exit-code (buffer-string)))
-	    nil)
-	(buffer-string)))))
-
-(defun org-babel-eval-read-file (file)
-  "Return the contents of FILE as a string."
-  (with-temp-buffer (insert-file-contents file)
-		    (buffer-string)))
-
-(defun org-babel-shell-command-on-region (start end command
-						&optional output-buffer replace
-						error-buffer display-error-buffer)
-  "Execute COMMAND in an inferior shell with region as input.
-
-Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
-
-Normally display output (if any) in temp buffer `*Shell Command Output*';
-Prefix arg means replace the region with it.  Return the exit code of
-COMMAND.
-
-To specify a coding system for converting non-ASCII characters in
-the input and output to the shell command, use
-\\[universal-coding-system-argument] before this command.  By
-default, the input (from the current buffer) is encoded in the
-same coding system that will be used to save the file,
-`buffer-file-coding-system'.  If the output is going to replace
-the region, then it is decoded from that same coding system.
-
-The noninteractive arguments are START, END, COMMAND,
-OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
-Noninteractive callers can specify coding systems by binding
-`coding-system-for-read' and `coding-system-for-write'.
-
-If the command generates output, the output may be displayed
-in the echo area or in a buffer.
-If the output is short enough to display in the echo area
-\(determined by the variable `max-mini-window-height' if
-`resize-mini-windows' is non-nil), it is shown there.  Otherwise
-it is displayed in the buffer `*Shell Command Output*'.  The output
-is available in that buffer in both cases.
-
-If there is output and an error, a message about the error
-appears at the end of the output.
-
-If there is no output, or if output is inserted in the current buffer,
-then `*Shell Command Output*' is deleted.
-
-If the optional fourth argument OUTPUT-BUFFER is non-nil,
-that says to put the output in some other buffer.
-If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
-If OUTPUT-BUFFER is not a buffer and not nil,
-insert output in the current buffer.
-In either case, the output is inserted after point (leaving mark after it).
-
-If REPLACE, the optional fifth argument, is non-nil, that means insert
-the output in place of text from START to END, putting point and mark
-around it.
-
-If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
-or buffer name to which to direct the command's standard error output.
-If it is nil, error output is mingled with regular output.
-If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
-were any errors.  (This is always t, interactively.)
-In an interactive call, the variable `shell-command-default-error-buffer'
-specifies the value of ERROR-BUFFER."
-  (interactive (let (string)
-		 (unless (mark)
-		   (error "The mark is not set now, so there is no region"))
-		 ;; Do this before calling region-beginning
-		 ;; and region-end, in case subprocess output
-		 ;; relocates them while we are in the minibuffer.
-		 (setq string (read-shell-command "Shell command on region: "))
-		 ;; call-interactively recognizes region-beginning and
-		 ;; region-end specially, leaving them in the history.
-		 (list (region-beginning) (region-end)
-		       string
-		       current-prefix-arg
-		       current-prefix-arg
-		       shell-command-default-error-buffer
-		       t)))
-  (let ((error-file
-	 (if error-buffer
-	     (make-temp-file
-	      (expand-file-name "scor"
-                                (if (featurep 'xemacs)
-                                    (temp-directory)
-                                  temporary-file-directory)))
-	   nil))
-	exit-status)
-    (if (or replace
-	    (and output-buffer
-		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
-	;; Replace specified region with output from command.
-	(let ((swap (and replace (< start end))))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (goto-char start)
-	  (and replace (push-mark (point) 'nomsg))
-	  (setq exit-status
-		(call-process-region start end shell-file-name t
-				     (if error-file
-					 (list output-buffer error-file)
-				       t)
-				     nil shell-command-switch command))
-	  ;; It is rude to delete a buffer which the command is not using.
-	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
-	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
-	  ;; 	 (kill-buffer shell-buffer)))
-	  ;; Don't muck with mark unless REPLACE says we should.
-	  (and replace swap (exchange-point-and-mark)))
-      ;; No prefix argument: put the output in a temp buffer,
-      ;; replacing its entire contents.
-      (let ((buffer (get-buffer-create
-		     (or output-buffer "*Shell Command Output*"))))
-	(unwind-protect
-	    (if (eq buffer (current-buffer))
-		;; If the input is the same buffer as the output,
-		;; delete everything but the specified region,
-		;; then replace that region with the output.
-		(progn (setq buffer-read-only nil)
-		       (delete-region (max start end) (point-max))
-		       (delete-region (point-min) (min start end))
-		       (setq exit-status
-			     (call-process-region (point-min) (point-max)
-						  shell-file-name t
-						  (if error-file
-						      (list t error-file)
-						    t)
-						  nil shell-command-switch
-						  command)))
-	      ;; Clear the output buffer, then run the command with
-	      ;; output there.
-	      (let ((directory default-directory))
-		(with-current-buffer buffer
-		  (setq buffer-read-only nil)
-		  (if (not output-buffer)
-		      (setq default-directory directory))
-		  (erase-buffer)))
-	      (setq exit-status
-		    (call-process-region start end shell-file-name nil
-					 (if error-file
-					     (list buffer error-file)
-					   buffer)
-					 nil shell-command-switch command)))
-	  ;; Report the output.
-	  (with-current-buffer buffer
-	    (setq mode-line-process
-		  (cond ((null exit-status)
-			 " - Error")
-			((stringp exit-status)
-			 (format " - Signal [%s]" exit-status))
-			((not (equal 0 exit-status))
-			 (format " - Exit [%d]" exit-status)))))
-	  (if (with-current-buffer buffer (> (point-max) (point-min)))
-	      ;; There's some output, display it
-	      (display-message-or-buffer buffer)
-	    ;; No output; error?
-	    (let ((output
-		   (if (and error-file
-			    (< 0 (nth 7 (file-attributes error-file))))
-		       "some error output"
-		     "no output")))
-	      (cond ((null exit-status)
-		     (message "(Shell command failed with error)"))
-		    ((equal 0 exit-status)
-		     (message "(Shell command succeeded with %s)"
-			      output))
-		    ((stringp exit-status)
-		     (message "(Shell command killed by signal %s)"
-			      exit-status))
-		    (t
-		     (message "(Shell command failed with code %d and %s)"
-			      exit-status output))))
-	    ;; Don't kill: there might be useful info in the undo-log.
-	    ;; (kill-buffer buffer)
-	    ))))
-
-    (when (and error-file (file-exists-p error-file))
-      (if (< 0 (nth 7 (file-attributes error-file)))
-	  (with-current-buffer (get-buffer-create error-buffer)
-	    (let ((pos-from-end (- (point-max) (point))))
-	      (or (bobp)
-		  (insert "\f\n"))
-	      ;; Do no formatting while reading error file,
-	      ;; because that can run a shell command, and we
-	      ;; don't want that to cause an infinite recursion.
-	      (format-insert-file error-file nil)
-	      ;; Put point after the inserted errors.
-	      (goto-char (- (point-max) pos-from-end)))
-	    (and display-error-buffer
-		 (display-buffer (current-buffer)))))
-      (delete-file error-file))
-    exit-status))
-
-(defun org-babel-eval-wipe-error-buffer ()
-  "Delete the contents of the Org code block error buffer.
-This buffer is named by `org-babel-error-buffer-name'."
-  (when (get-buffer org-babel-error-buffer-name)
-    (with-current-buffer org-babel-error-buffer-name
-      (delete-region (point-min) (point-max)))))
-
-(provide 'ob-eval)
-
-
-
-;;; ob-eval.el ends here
diff --git a/lisp/ob-keys.el b/lisp/ob-keys.el
deleted file mode 100644
index 283c2b5..0000000
--- a/lisp/ob-keys.el
+++ /dev/null
@@ -1,105 +0,0 @@
-;;; ob-keys.el --- key bindings for org-babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Author: Eric Schulte
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Add org-babel keybindings to the org-mode keymap for exposing
-;; org-babel functions.  These will all share a common prefix.  See
-;; the value of `org-babel-key-bindings' for a list of interactive
-;; functions and their associated keys.
-
-;;; Code:
-(require 'ob-core)
-
-(defvar org-babel-key-prefix "\C-c\C-v"
-  "The key prefix for Babel interactive key-bindings.
-See `org-babel-key-bindings' for the list of interactive babel
-functions which are assigned key bindings, and see
-`org-babel-map' for the actual babel keymap.")
-
-(defvar org-babel-map (make-sparse-keymap)
-  "The keymap for interactive Babel functions.")
-
-;;;###autoload
-(defun org-babel-describe-bindings ()
-  "Describe all keybindings behind `org-babel-key-prefix'."
-  (interactive)
-  (describe-bindings org-babel-key-prefix))
-
-(defvar org-babel-key-bindings
-  '(("p" . org-babel-previous-src-block)
-    ("\C-p" . org-babel-previous-src-block)
-    ("n" . org-babel-next-src-block)
-    ("\C-n" . org-babel-next-src-block)
-    ("e" . org-babel-execute-maybe)
-    ("\C-e" . org-babel-execute-maybe)
-    ("o" . org-babel-open-src-block-result)
-    ("\C-o" . org-babel-open-src-block-result)
-    ("\C-v" . org-babel-expand-src-block)
-    ("v" . org-babel-expand-src-block)
-    ("u" . org-babel-goto-src-block-head)
-    ("\C-u" . org-babel-goto-src-block-head)
-    ("g" . org-babel-goto-named-src-block)
-    ("r" . org-babel-goto-named-result)
-    ("\C-r" . org-babel-goto-named-result)
-    ("\C-b" . org-babel-execute-buffer)
-    ("b" . org-babel-execute-buffer)
-    ("\C-s" . org-babel-execute-subtree)
-    ("s" . org-babel-execute-subtree)
-    ("\C-d" . org-babel-demarcate-block)
-    ("d" . org-babel-demarcate-block)
-    ("\C-t" . org-babel-tangle)
-    ("t" . org-babel-tangle)
-    ("\C-f" . org-babel-tangle-file)
-    ("f" . org-babel-tangle-file)
-    ("\C-c" . org-babel-check-src-block)
-    ("c" . org-babel-check-src-block)
-    ("\C-j" . org-babel-insert-header-arg)
-    ("j" . org-babel-insert-header-arg)
-    ("\C-l" . org-babel-load-in-session)
-    ("l" . org-babel-load-in-session)
-    ("\C-i" . org-babel-lob-ingest)
-    ("i" . org-babel-lob-ingest)
-    ("\C-I" . org-babel-view-src-block-info)
-    ("I" . org-babel-view-src-block-info)
-    ("\C-z" . org-babel-switch-to-session)
-    ("z" . org-babel-switch-to-session-with-code)
-    ("\C-a" . org-babel-sha1-hash)
-    ("a" . org-babel-sha1-hash)
-    ("h" . org-babel-describe-bindings)
-    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("x" . org-babel-do-key-sequence-in-edit-buffer)
-    ("\C-\M-h" . org-babel-mark-block))
-  "Alist of key bindings and interactive Babel functions.
-This list associates interactive Babel functions
-with keys.  Each element of this list will add an entry to the
-`org-babel-map' using the letter key which is the `car' of the
-a-list placed behind the generic `org-babel-key-prefix'.")
-
-(provide 'ob-keys)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-keys.el ends here
diff --git a/lisp/ob-lob.el b/lisp/ob-lob.el
deleted file mode 100644
index 5c21db7..0000000
--- a/lisp/ob-lob.el
+++ /dev/null
@@ -1,149 +0,0 @@
-;;; ob-lob.el --- functions supporting the Library of Babel
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Code:
-(eval-when-compile
-  (require 'cl))
-(require 'ob-core)
-(require 'ob-table)
-
-(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
-
-(defvar org-babel-library-of-babel nil
-  "Library of source-code blocks.
-This is an association list.  Populate the library by adding
-files to `org-babel-lob-files'.")
-
-(defcustom org-babel-lob-files '()
-  "Files used to populate the `org-babel-library-of-babel'.
-To add files to this list use the `org-babel-lob-ingest' command."
-  :group 'org-babel
-  :version "24.1"
-  :type 'list)
-
-(defvar org-babel-default-lob-header-args '((:exports . "results"))
-  "Default header arguments to use when exporting #+lob/call lines.")
-
-(defun org-babel-lob-ingest (&optional file)
-  "Add all named source-blocks defined in FILE to
-`org-babel-library-of-babel'."
-  (interactive "fFile: ")
-  (let ((lob-ingest-count 0))
-    (org-babel-map-src-blocks file
-      (let* ((info (org-babel-get-src-block-info 'light))
-	     (source-name (nth 4 info)))
-	(when source-name
-	  (setq source-name (intern source-name)
-		org-babel-library-of-babel
-		(cons (cons source-name info)
-		      (assq-delete-all source-name org-babel-library-of-babel))
-		lob-ingest-count (1+ lob-ingest-count)))))
-    (message "%d src block%s added to Library of Babel"
-	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
-    lob-ingest-count))
-
-(defconst org-babel-block-lob-one-liner-regexp
-  (concat
-   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
-  "Regexp to match non-inline calls to predefined source block functions.")
-
-(defconst org-babel-inline-lob-one-liner-regexp
-  (concat
-   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
-   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
-  "Regexp to match inline calls to predefined source block functions.")
-
-(defconst org-babel-lob-one-liner-regexp
-  (concat "\\(" org-babel-block-lob-one-liner-regexp
-	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
-  "Regexp to match calls to predefined source block functions.")
-
-;; functions for executing lob one-liners
-
-;;;###autoload
-(defun org-babel-lob-execute-maybe ()
-  "Execute a Library of Babel source block, if appropriate.
-Detect if this is context for a Library Of Babel source block and
-if so then run the appropriate source block from the Library."
-  (interactive)
-  (let ((info (org-babel-lob-get-info)))
-    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
-	(progn (org-babel-lob-execute info) t)
-      nil)))
-
-;;;###autoload
-(defun org-babel-lob-get-info ()
-  "Return a Library of Babel function call as a string."
-  (let ((case-fold-search t)
-	(nonempty (lambda (a b)
-		    (let ((it (match-string a)))
-		      (if (= (length it) 0) (match-string b) it)))))
-    (save-excursion
-      (beginning-of-line 1)
-      (when (looking-at org-babel-lob-one-liner-regexp)
-	(append
-	 (mapcar #'org-no-properties
-		 (list
-		  (format "%s%s(%s)%s"
-			  (funcall nonempty 3 12)
-			  (if (not (= 0 (length (funcall nonempty 5 14))))
-			      (concat "[" (funcall nonempty 5 14) "]") "")
-			  (or (funcall nonempty 7 16) "")
-			  (or (funcall nonempty 8 19) ""))
-		  (funcall nonempty 9 18)))
-	 (list (length (if (= (length (match-string 12)) 0)
-			   (match-string 2) (match-string 11)))))))))
-
-(defun org-babel-lob-execute (info)
-  "Execute the lob call specified by INFO."
-  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
-	 (pre-params (org-babel-merge-params
-		      org-babel-default-header-args
-		      (org-babel-params-from-properties)
-		      (org-babel-parse-header-arguments
-		       (org-no-properties
-			(concat ":var results="
-				(mapconcat #'identity (butlast info) " "))))))
-	 (pre-info (funcall mkinfo pre-params))
-	 (cache? (and (cdr (assoc :cache pre-params))
-		      (string= "yes" (cdr (assoc :cache pre-params)))))
-	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
-	 (old-hash (when cache? (org-babel-current-result-hash))))
-    (if (and cache? (equal new-hash old-hash))
-	(save-excursion (goto-char (org-babel-where-is-src-block-result))
-			(forward-line 1)
-			(message "%S" (org-babel-read-result)))
-      (prog1 (org-babel-execute-src-block
-	      nil (funcall mkinfo (org-babel-process-params pre-params)))
-	;; update the hash
-	(when new-hash (org-babel-set-current-result-hash new-hash))))))
-
-(provide 'ob-lob)
-
-;; Local variables:
-;; generated-autoload-file: "org-loaddefs.el"
-;; End:
-
-;;; ob-lob.el ends here
diff --git a/lisp/ob-ref.el b/lisp/ob-ref.el
deleted file mode 100644
index 1149111..0000000
--- a/lisp/ob-ref.el
+++ /dev/null
@@ -1,266 +0,0 @@
-;;; ob-ref.el --- org-babel functions for referencing external data
-
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
-
-;; Authors: Eric Schulte
-;;	 Dan Davison
-;; Keywords: literate programming, reproducible research
-;; Homepage: http://orgmode.org
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software: you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation, either version 3 of the License, or
-;; (at your option) any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-
-;; Functions for referencing data from the header arguments of a
-;; org-babel block.  The syntax of such a reference should be
-
-;;   #+VAR: variable-name=file:resource-id
-
-;; - variable-name :: the name of the variable to which the value
-;;                    will be assigned
-
-;; - file :: path to the file containing the resource, or omitted if
-;;           resource is in the current file
-
-;; - resource-id :: the id or name of the resource
-
-;; So an example of a simple src block referencing table data in the
-;; same file would be
-
-;;  #+TBLNAME: sandbox
-;;  | 1 |         2 | 3 |
-;;  | 4 | org-babel | 6 |
-;;
-;;  #+begin_src emacs-lisp :var table=sandbox
-;;    (message table)
-;;  #+end_src
-
-;;; Code:
-(require 'ob-core)
-(eval-when-compile
-  (require 'cl))
-
-(declare-function org-remove-if-not "org" (predicate seq))
-(declare-function org-at-table-p "org" (&optional table-type))
-(declare-function org-count "org" (CL-ITEM CL-SEQ))
-(declare-function org-at-item-p "org-list" ())
-(declare-function org-narrow-to-subtree "org" ())
-(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
-(declare-function org-id-find-id-file "org-id" (id))
-(declare-function org-show-context "org" (&optional key))
-(declare-function org-pop-to-buffer-same-window
-		  "org-compat" (&optional buffer-or-name norecord label))
-
-(defvar org-babel-ref-split-regexp
-  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
-
-(defvar org-babel-update-intermediate nil
-  "Update the in-buffer results of code blocks executed to resolve references.")
-
-(defun org-babel-ref-parse (assignment)
-  "Parse a variable ASSIGNMENT in a header argument.
-If the right hand side of the assignment has a literal value
-return that value, otherwise interpret as a reference to an
-external resource and find its value using
-`org-babel-ref-resolve'.  Return a list with two elements.  The
-first element of the list will be the name of the variable, and
-the second will be an emacs-lisp representation of the value of
-the variable."
-  (when (string-match org-babel-ref-split-regexp assignment)
-    (let ((var (match-string 1 assignment))
-	  (ref (match-string 2 assignment)))
-      (cons (intern var)
-	    (let ((out (org-babel-read ref)))
-	      (if (equal out ref)
-		  (if (string-match "^\".*\"$" ref)
-		      (read ref)
-		    (org-babel-ref-resolve ref))
-		out))))))
-
-(defun org-babel-ref-goto-headline-id (id)
-  (goto-char (point-min))
-  (let ((rx (regexp-quote id)))
-    (or (re-search-forward
-	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
-	(let* ((file (org-id-find-id-file id))
-	       (m (when file (org-id-find-id-in-file id file 'marker))))
-	  (when (and file m)
-	    (message "file:%S" file)
-	    (org-pop-to-buffer-same-window (marker-buffer m))
-	    (goto-char m)
-	    (move-marker m nil)
-	    (org-show-context)
-	    t)))))
-
-(defun org-babel-ref-headline-body ()
-  (save-restriction
-    (org-narrow-to-subtree)
-    (buffer-substring
-     (save-excursion (goto-char (point-min))
-		     (forward-line 1)
-		     (when (looking-at "[ \t]*:PROPERTIES:")
-		       (re-search-forward ":END:" nil)
-		       (forward-char))
-		     (point))
-     (point-max))))
-
-(defvar org-babel-library-of-babel)
-(defun org-babel-ref-resolve (ref)
-  "Resolve the reference REF and return its value."
-  (save-window-excursion
-    (save-excursion
-      (let ((case-fold-search t)
-	    type args new-refere new-header-args new-referent result
-	    lob-info split-file split-ref index index-row index-col id)
-	;; if ref is indexed grab the indices -- beware nested indices
-	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
-		   (let ((str (substring ref 0 (match-beginning 0))))
-		     (= (org-count ?( str) (org-count ?) str))))
-	  (setq index (match-string 1 ref))
-	  (setq ref (substring ref 0 (match-beginning 0))))
-	;; assign any arguments to pass to source block
-	(when (string-match
-	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
-	  (setq new-refere      (match-string 1 ref))
-	  (setq new-header-args (match-string 3 ref))
-	  (setq new-referent    (match-string 5 ref))
-	  (when (> (length new-refere) 0)
-	    (when (> (length new-referent) 0)
-	      (setq args (mapcar (lambda (ref) (cons :var ref))
-				 (org-babel-ref-split-args new-referent))))
-	    (when (> (length new-header-args) 0)
-	      (setq args (append (org-babel-parse-header-arguments
-				  new-header-args) args)))
-	    (setq ref new-refere)))
-	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
-	  (setq split-file (match-string 1 ref))
-	  (setq split-ref (match-string 2 ref))
-	  (find-file split-file) (setq ref split-ref))
-	(save-restriction
-	  (widen)
-	  (goto-char (point-min))
-	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
-		    (res-rx (org-babel-named-data-regexp-for-name ref)))
-		;; goto ref in the current buffer
-		(or
-		 ;; check for code blocks
-		 (re-search-forward src-rx nil t)
-		 ;; check for named data
-		 (re-search-forward res-rx nil t)
-		 ;; check for local or global headlines by id
-		 (setq id (org-babel-ref-goto-headline-id ref))
-		 ;; check the Library of Babel
-		 (setq lob-info (cdr (assoc (intern ref)
-					    org-babel-library-of-babel)))))
-	      (unless (or lob-info id) (goto-char (match-beginning 0)))
-	    ;; ;; TODO: allow searching for names in other buffers
-	    ;; (setq id-loc (org-id-find ref 'marker)
-	    ;;       buffer (marker-buffer id-loc)
-	    ;;       loc (marker-position id-loc))
-	    ;; (move-marker id-loc nil)
-	    (error "Reference '%s' not found in this buffer" ref))
-	  (cond
-	   (lob-info (setq type 'lob))
-	   (id (setq type 'id))
-	   ((and (looking-at org-babel-src-name-regexp)
-		 (save-excursion
-		   (forward-line 1)
-		   (or (looking-at org-babel-src-block-regexp)
-		       (looking-at org-babel-multi-line-header-regexp))))
-	    (setq type 'source-block))
-	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
-		(forward-line 1)
-		(beginning-of-line)
-		(if (or (= (point) (point-min)) (= (point) (point-max)))
-		    (error "Reference not found")))))
-	  (let ((params (append args '((:results . "silent")))))
-	    (setq result
-		  (case type
-		    (results-line (org-babel-read-result))
-		    (table        (org-babel-read-table))
-		    (list         (org-babel-read-list))
-		    (file         (org-babel-read-link))
-		    (source-block (org-babel-execute-src-block
-				   nil nil (if org-babel-update-intermediate
-					       nil params)))
-		    (lob          (org-babel-execute-src-block
-				   nil lob-info params))
-		    (id           (org-babel-ref-headline-body)))))
-	  (if (symbolp result)
-	      (format "%S" result)
-	    (if (and index (listp result))
-		(org-babel-ref-index-list index result)
-	      result)))))))
-
-(defun org-babel-ref-index-list (index lis)
-  "Return the subset of LIS indexed by INDEX.
-
-Indices are 0 based and negative indices count from the end of
-LIS, so 0 references the first element of LIS and -1 references
-the last.  If INDEX is separated by \",\"s then each \"portion\"
-is assumed to index into the next deepest nesting or dimension.
-
-A valid \"portion\" can consist of either an integer index, two
-integers separated by a \":\" in which case the entire range is
-returned, or an empty string or \"*\" both of which are
-interpreted to mean the entire range and as such are equivalent
-to \"0:-1\"."
-  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
-      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
-	     (lgth (length lis))
-	     (portion (match-string 1 index))
-	     (remainder (substring index (match-end 0)))
-	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
-	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
-	(funcall
-	 open
-	 (mapcar
-	  (lambda (sub-lis)
-	    (if (listp sub-lis)
-		(org-babel-ref-index-list remainder sub-lis)
-	      sub-lis))
-	  (if (or (= 0 (length portion)) (string-match ind-re portion))
-	      (mapcar
-	       (lambda (n) (nth n lis))
-	       (apply 'org-number-sequence
-		      (if (and (> (length portion) 0) (match-string 2 portion))
-			  (list
-			   (funcall wrap (string-to-number (match-string 2 portion)))
-			   (funcall wrap (string-to-number (match-string 3 portion))))
-			(list (funcall wrap 0) (funcall wrap -1)))))
-	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
-    lis))
-
-(defun org-babel-ref-split-args (arg-string)
-  "Split ARG-STRING into top-level arguments of balanced parenthesis."
-  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
-
-(defvar org-bracket-link-regexp)
-(defun org-babel-ref-at-ref-p ()
-  "Return the type of reference located at point.
-Return nil if none of the supported reference types are found.
-Supported reference types are tables and source blocks."
-  (cond ((org-at-table-p) 'table)
-	((org-at-item-p) 'list)
-        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
-        ((looking-at org-bracket-link-regexp) 'file)
-        ((looking-at org-babel-result-regexp) 'results-line)))
-
-(provide 'ob-ref)
-
-
-
-;;; ob-ref.el ends here
-- 
1.8.0.1


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From 59c0f820ba21c0a1b8b7493eb86a0516a12b175d Mon Sep 17 00:00:00 2001
From: Bastien Guerry <bzg@altern.org>
Date: Fri, 14 Dec 2012 18:38:37 +0100
Subject: [PATCH 2/3] Require ob instead of ob-core.

---
 lisp/ob-exp.el   |  2 +-
 lisp/ob-table.el |  2 +-
 lisp/org-src.el  | 73 ++++++++++++++++++++++++++++----------------------------
 3 files changed, 38 insertions(+), 39 deletions(-)

diff --git a/lisp/ob-exp.el b/lisp/ob-exp.el
index a71717b..03f2f5f 100644
--- a/lisp/ob-exp.el
+++ b/lisp/ob-exp.el
@@ -23,7 +23,7 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
diff --git a/lisp/ob-table.el b/lisp/ob-table.el
index b7cd106..242ddf0 100644
--- a/lisp/ob-table.el
+++ b/lisp/ob-table.el
@@ -50,7 +50,7 @@
 ;; #+TBLFM: $2='(sbe 'fibbd (n $1))
 
 ;;; Code:
-(require 'ob-core)
+(require 'ob)
 
 (defun org-babel-table-truncate-at-newline (string)
   "Replace newline character with ellipses.
diff --git a/lisp/org-src.el b/lisp/org-src.el
index 6937c59..1b38aa2 100644
--- a/lisp/org-src.el
+++ b/lisp/org-src.el
@@ -32,8 +32,7 @@
 
 (require 'org-macs)
 (require 'org-compat)
-(require 'ob-keys)
-(require 'ob-comint)
+(require 'ob)
 (eval-when-compile
   (require 'cl))
 
@@ -201,39 +200,41 @@ There is a mode hook, and keybindings for `org-edit-src-exit' and
 `org-edit-src-save'")
 
 (defun org-edit-src-code (&optional context code edit-buffer-name)
-  "Edit the source CODE block at point.
-The code is copied to a separate buffer and the appropriate mode
-is turned on.  When done, exit with \\[org-edit-src-exit].  This will
-remove the original code in the Org buffer, and replace it with the
-edited version.  An optional argument CONTEXT is used by \\[org-edit-src-save]
-when calling this function.  See `org-src-window-setup' to configure
-the display of windows containing the Org buffer and the code buffer."
+  "Edit the source CODE example at point.
+The example is copied to a separate buffer, and that buffer is
+switched to the correct language mode.  When done, exit with
+\\[org-edit-src-exit].  This will remove the original code in the
+Org buffer, and replace it with the edited version.  An optional
+argument CONTEXT is used by \\[org-edit-src-save] when calling
+this function.  See `org-src-window-setup' to configure the
+display of windows containing the Org buffer and the code
+buffer."
   (interactive)
-  (if (not (org-in-src-block-p))
-      (user-error "Not in a source code block")
-    (unless (eq context 'save)
-      (setq org-edit-src-saved-temp-window-config (current-window-configuration)))
-    (let* ((mark (and (org-region-active-p) (mark)))
-	   (case-fold-search t)
-	   (info
-	    ;; If the src region consists in no lines, we insert a blank
-	    ;; line.
-	    (let* ((temp (org-edit-src-find-region-and-lang))
-		   (beg (nth 0 temp))
-		   (end (nth 1 temp)))
-	      (if (>= end beg) temp
-		(goto-char beg)
-		(insert "\n")
-		(org-edit-src-find-region-and-lang))))
-	   (full-info (org-babel-get-src-block-info 'light))
-	   (org-mode-p (derived-mode-p 'org-mode)) ;; derived-mode-p is reflexive
-	   (beg (make-marker))
-	   ;; Move marker with inserted text for case when src block is
-	   ;; just one empty line, i.e. beg == end.
-	   (end (copy-marker (make-marker) t))
-	   (allow-write-back-p (null code))
-	   block-nindent total-nindent ovl lang lang-f single lfmt buffer msg
-	   begline markline markcol line col transmitted-variables)
+  (unless (eq context 'save)
+    (setq org-edit-src-saved-temp-window-config (current-window-configuration)))
+  (let* ((mark (and (org-region-active-p) (mark)))
+	 (case-fold-search t)
+	 (info
+	  ;; If the src region consists in no lines, we insert a blank
+	  ;; line.
+	  (let* ((temp (org-edit-src-find-region-and-lang))
+		 (beg (nth 0 temp))
+		 (end (nth 1 temp)))
+	    (if (>= end beg) temp
+	      (goto-char beg)
+	      (insert "\n")
+	      (org-edit-src-find-region-and-lang))))
+	 (full-info (org-babel-get-src-block-info 'light))
+	 (org-mode-p (derived-mode-p 'org-mode)) ;; derived-mode-p is reflexive
+	 (beg (make-marker))
+	 ;; Move marker with inserted text for case when src block is
+	 ;; just one empty line, i.e. beg == end.
+	 (end (copy-marker nil t))
+	 (allow-write-back-p (null code))
+	 block-nindent total-nindent ovl lang lang-f single lfmt buffer msg
+	 begline markline markcol line col transmitted-variables)
+    (if (not info)
+	nil
       (setq beg (move-marker beg (nth 0 info))
 	    end (move-marker end (nth 1 info))
 	    msg (if allow-write-back-p
@@ -242,7 +243,7 @@ the display of windows containing the Org buffer and the code buffer."
 		  "Exit with C-c ' (C-c and single quote)")
 	    code (or code (buffer-substring-no-properties beg end))
 	    lang (or (cdr (assoc (nth 2 info) org-src-lang-modes))
-		     (nth 2 info))
+                     (nth 2 info))
 	    lang (if (symbolp lang) (symbol-name lang) lang)
 	    single (nth 3 info)
 	    block-nindent (nth 5 info)
@@ -741,8 +742,6 @@ with \",*\", \",#+\", \",,*\" and \",,#+\"."
   (interactive)
   (org-src-in-org-buffer (save-buffer)))
 
-(declare-function org-babel-tangle "ob-tangle" (&optional only-this-block target-file lang))
-
 (defun org-src-tangle (arg)
   "Tangle the parent buffer."
   (interactive)
-- 
1.8.0.1


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From ec44cbfc60d1bd4d8ebb759b81bf7e75c293b8ea Mon Sep 17 00:00:00 2001
From: Bastien Guerry <bzg@altern.org>
Date: Fri, 14 Dec 2012 18:39:43 +0100
Subject: [PATCH 3/3] Move ob-core.el and some other libraries to ob.el

---
 lisp/ob.el | 3832 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 3823 insertions(+), 9 deletions(-)

diff --git a/lisp/ob.el b/lisp/ob.el
index 3010503..8044882 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -3,6 +3,7 @@
 ;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
 
 ;; Authors: Eric Schulte
+;;	Dan Davison
 ;; Keywords: literate programming, reproducible research
 ;; Homepage: http://orgmode.org
 
@@ -22,15 +23,3828 @@
 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; Code:
-(require 'ob-eval)
-(require 'ob-core)
-(require 'ob-comint)
-(require 'ob-exp)
-(require 'ob-keys)
-(require 'ob-table)
-(require 'ob-lob)
-(require 'ob-ref)
-(require 'ob-tangle)
+(eval-when-compile
+  (require 'cl))
+
+(require 'org-macs)
+(require 'org-compat)
+(require 'comint)
+
+;;; ob-eval
+(defvar org-babel-error-buffer-name "*Org-Babel Error Output*")
+
+(defun org-babel-eval-error-notify (exit-code stderr)
+  "Open a buffer to display STDERR and a message with the value of EXIT-CODE."
+  (let ((buf (get-buffer-create org-babel-error-buffer-name)))
+    (with-current-buffer buf
+      (goto-char (point-max))
+      (save-excursion (insert stderr)))
+    (display-buffer buf))
+  (message "Babel evaluation exited with code %S" exit-code))
+
+(defun org-babel-eval (cmd body)
+  "Run CMD on BODY.
+If CMD succeeds then return its results, otherwise display
+STDERR with `org-babel-eval-error-notify'."
+  (let ((err-buff (get-buffer-create " *Org-Babel Error*")) exit-code)
+    (with-current-buffer err-buff (erase-buffer))
+    (with-temp-buffer
+      (insert body)
+      (setq exit-code
+	    (org-babel-shell-command-on-region
+	     (point-min) (point-max) cmd t 'replace err-buff))
+      (if (or (not (numberp exit-code)) (> exit-code 0))
+	  (progn
+	    (with-current-buffer err-buff
+	      (org-babel-eval-error-notify exit-code (buffer-string)))
+	    nil)
+	(buffer-string)))))
+
+(defun org-babel-eval-read-file (file)
+  "Return the contents of FILE as a string."
+  (with-temp-buffer (insert-file-contents file)
+		    (buffer-string)))
+
+(defun org-babel-shell-command-on-region (start end command
+						&optional output-buffer replace
+						error-buffer display-error-buffer)
+  "Execute COMMAND in an inferior shell with region as input.
+
+Fixes bugs in the emacs 23.1.1 version of `shell-command-on-region'
+
+Normally display output (if any) in temp buffer `*Shell Command Output*';
+Prefix arg means replace the region with it.  Return the exit code of
+COMMAND.
+
+To specify a coding system for converting non-ASCII characters in
+the input and output to the shell command, use
+\\[universal-coding-system-argument] before this command.  By
+default, the input (from the current buffer) is encoded in the
+same coding system that will be used to save the file,
+`buffer-file-coding-system'.  If the output is going to replace
+the region, then it is decoded from that same coding system.
+
+The noninteractive arguments are START, END, COMMAND,
+OUTPUT-BUFFER, REPLACE, ERROR-BUFFER, and DISPLAY-ERROR-BUFFER.
+Noninteractive callers can specify coding systems by binding
+`coding-system-for-read' and `coding-system-for-write'.
+
+If the command generates output, the output may be displayed
+in the echo area or in a buffer.
+If the output is short enough to display in the echo area
+\(determined by the variable `max-mini-window-height' if
+`resize-mini-windows' is non-nil), it is shown there.  Otherwise
+it is displayed in the buffer `*Shell Command Output*'.  The output
+is available in that buffer in both cases.
+
+If there is output and an error, a message about the error
+appears at the end of the output.
+
+If there is no output, or if output is inserted in the current buffer,
+then `*Shell Command Output*' is deleted.
+
+If the optional fourth argument OUTPUT-BUFFER is non-nil,
+that says to put the output in some other buffer.
+If OUTPUT-BUFFER is a buffer or buffer name, put the output there.
+If OUTPUT-BUFFER is not a buffer and not nil,
+insert output in the current buffer.
+In either case, the output is inserted after point (leaving mark after it).
+
+If REPLACE, the optional fifth argument, is non-nil, that means insert
+the output in place of text from START to END, putting point and mark
+around it.
+
+If optional sixth argument ERROR-BUFFER is non-nil, it is a buffer
+or buffer name to which to direct the command's standard error output.
+If it is nil, error output is mingled with regular output.
+If DISPLAY-ERROR-BUFFER is non-nil, display the error buffer if there
+were any errors.  (This is always t, interactively.)
+In an interactive call, the variable `shell-command-default-error-buffer'
+specifies the value of ERROR-BUFFER."
+  (interactive (let (string)
+		 (unless (mark)
+		   (error "The mark is not set now, so there is no region"))
+		 ;; Do this before calling region-beginning
+		 ;; and region-end, in case subprocess output
+		 ;; relocates them while we are in the minibuffer.
+		 (setq string (read-shell-command "Shell command on region: "))
+		 ;; call-interactively recognizes region-beginning and
+		 ;; region-end specially, leaving them in the history.
+		 (list (region-beginning) (region-end)
+		       string
+		       current-prefix-arg
+		       current-prefix-arg
+		       shell-command-default-error-buffer
+		       t)))
+  (let ((error-file
+	 (if error-buffer
+	     (make-temp-file
+	      (expand-file-name "scor"
+                                (if (featurep 'xemacs)
+                                    (temp-directory)
+                                  temporary-file-directory)))
+	   nil))
+	exit-status)
+    (if (or replace
+	    (and output-buffer
+		 (not (or (bufferp output-buffer) (stringp output-buffer)))))
+	;; Replace specified region with output from command.
+	(let ((swap (and replace (< start end))))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (goto-char start)
+	  (and replace (push-mark (point) 'nomsg))
+	  (setq exit-status
+		(call-process-region start end shell-file-name t
+				     (if error-file
+					 (list output-buffer error-file)
+				       t)
+				     nil shell-command-switch command))
+	  ;; It is rude to delete a buffer which the command is not using.
+	  ;; (let ((shell-buffer (get-buffer "*Shell Command Output*")))
+	  ;;   (and shell-buffer (not (eq shell-buffer (current-buffer)))
+	  ;; 	 (kill-buffer shell-buffer)))
+	  ;; Don't muck with mark unless REPLACE says we should.
+	  (and replace swap (exchange-point-and-mark)))
+      ;; No prefix argument: put the output in a temp buffer,
+      ;; replacing its entire contents.
+      (let ((buffer (get-buffer-create
+		     (or output-buffer "*Shell Command Output*"))))
+	(unwind-protect
+	    (if (eq buffer (current-buffer))
+		;; If the input is the same buffer as the output,
+		;; delete everything but the specified region,
+		;; then replace that region with the output.
+		(progn (setq buffer-read-only nil)
+		       (delete-region (max start end) (point-max))
+		       (delete-region (point-min) (min start end))
+		       (setq exit-status
+			     (call-process-region (point-min) (point-max)
+						  shell-file-name t
+						  (if error-file
+						      (list t error-file)
+						    t)
+						  nil shell-command-switch
+						  command)))
+	      ;; Clear the output buffer, then run the command with
+	      ;; output there.
+	      (let ((directory default-directory))
+		(with-current-buffer buffer
+		  (setq buffer-read-only nil)
+		  (if (not output-buffer)
+		      (setq default-directory directory))
+		  (erase-buffer)))
+	      (setq exit-status
+		    (call-process-region start end shell-file-name nil
+					 (if error-file
+					     (list buffer error-file)
+					   buffer)
+					 nil shell-command-switch command)))
+	  ;; Report the output.
+	  (with-current-buffer buffer
+	    (setq mode-line-process
+		  (cond ((null exit-status)
+			 " - Error")
+			((stringp exit-status)
+			 (format " - Signal [%s]" exit-status))
+			((not (equal 0 exit-status))
+			 (format " - Exit [%d]" exit-status)))))
+	  (if (with-current-buffer buffer (> (point-max) (point-min)))
+	      ;; There's some output, display it
+	      (display-message-or-buffer buffer)
+	    ;; No output; error?
+	    (let ((output
+		   (if (and error-file
+			    (< 0 (nth 7 (file-attributes error-file))))
+		       "some error output"
+		     "no output")))
+	      (cond ((null exit-status)
+		     (message "(Shell command failed with error)"))
+		    ((equal 0 exit-status)
+		     (message "(Shell command succeeded with %s)"
+			      output))
+		    ((stringp exit-status)
+		     (message "(Shell command killed by signal %s)"
+			      exit-status))
+		    (t
+		     (message "(Shell command failed with code %d and %s)"
+			      exit-status output))))
+	    ;; Don't kill: there might be useful info in the undo-log.
+	    ;; (kill-buffer buffer)
+	    ))))
+
+    (when (and error-file (file-exists-p error-file))
+      (if (< 0 (nth 7 (file-attributes error-file)))
+	  (with-current-buffer (get-buffer-create error-buffer)
+	    (let ((pos-from-end (- (point-max) (point))))
+	      (or (bobp)
+		  (insert "\f\n"))
+	      ;; Do no formatting while reading error file,
+	      ;; because that can run a shell command, and we
+	      ;; don't want that to cause an infinite recursion.
+	      (format-insert-file error-file nil)
+	      ;; Put point after the inserted errors.
+	      (goto-char (- (point-max) pos-from-end)))
+	    (and display-error-buffer
+		 (display-buffer (current-buffer)))))
+      (delete-file error-file))
+    exit-status))
+
+(defun org-babel-eval-wipe-error-buffer ()
+  "Delete the contents of the Org code block error buffer.
+This buffer is named by `org-babel-error-buffer-name'."
+  (when (get-buffer org-babel-error-buffer-name)
+    (with-current-buffer org-babel-error-buffer-name
+      (delete-region (point-min) (point-max)))))
+
+(defconst org-babel-exeext
+  (if (memq system-type '(windows-nt cygwin))
+      ".exe"
+    nil))
+(defvar org-babel-call-process-region-original)
+(defvar org-src-lang-modes)
+(defvar org-babel-library-of-babel)
+(declare-function show-all "outline" ())
+(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
+(declare-function org-mark-ring-push "org" (&optional pos buffer))
+(declare-function tramp-compat-make-temp-file "tramp-compat"
+                  (filename &optional dir-flag))
+(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
+(declare-function tramp-file-name-user "tramp" (vec))
+(declare-function tramp-file-name-host "tramp" (vec))
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function org-icompleting-read "org" (&rest args))
+(declare-function org-edit-src-code "org-src"
+                  (&optional context code edit-buffer-name quietp))
+(declare-function org-edit-src-exit "org-src"  (&optional context))
+(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
+(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
+(declare-function org-outline-overlay-data "org" (&optional use-markers))
+(declare-function org-set-outline-overlay-data "org" (data))
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-entry-get "org"
+		  (pom property &optional inherit literal-nil))
+(declare-function org-make-options-regexp "org" (kwds &optional extra))
+(declare-function org-do-remove-indentation "org" (&optional n))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-cycle "org" (&optional arg))
+(declare-function org-uniquify "org" (list))
+(declare-function org-current-level "org" ())
+(declare-function org-table-import "org-table" (file arg))
+(declare-function org-add-hook "org-compat"
+		  (hook function &optional append local))
+(declare-function org-table-align "org-table" ())
+(declare-function org-table-end "org-table" (&optional table-type))
+(declare-function orgtbl-to-generic "org-table" (table params))
+(declare-function orgtbl-to-orgtbl "org-table" (table params))
+(declare-function org-number-sequence "org-compat" (from &optional to inc))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-list-parse-list "org-list" (&optional delete))
+(declare-function org-list-to-generic "org-list" (LIST PARAMS))
+(declare-function org-list-struct "org-list" ())
+(declare-function org-list-prevs-alist "org-list" (struct))
+(declare-function org-list-get-list-end "org-list" (item struct prevs))
+(declare-function org-remove-if "org" (predicate seq))
+(declare-function org-completing-read "org" (&rest args))
+(declare-function org-escape-code-in-region "org-src" (beg end))
+(declare-function org-unescape-code-in-string "org-src" (s))
+(declare-function org-table-to-lisp "org-table" (&optional txt))
+
+(defgroup org-babel nil
+  "Code block evaluation and management in `org-mode' documents."
+  :tag "Babel"
+  :group 'org)
+
+(defcustom org-confirm-babel-evaluate t
+  "Confirm before evaluation.
+Require confirmation before interactively evaluating code
+blocks in Org-mode buffers.  The default value of this variable
+is t, meaning confirmation is required for any code block
+evaluation.  This variable can be set to nil to inhibit any
+future confirmation requests.  This variable can also be set to a
+function which takes two arguments the language of the code block
+and the body of the code block.  Such a function should then
+return a non-nil value if the user should be prompted for
+execution or nil if no prompt is required.
+
+Warning: Disabling confirmation may result in accidental
+evaluation of potentially harmful code.  It may be advisable
+remove code block execution from C-c C-c as further protection
+against accidental code block evaluation.  The
+`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
+remove code block execution from the C-c C-c keybinding."
+  :group 'org-babel
+  :version "24.1"
+  :type '(choice boolean function))
+;; don't allow this variable to be changed through file settings
+(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
+
+(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
+  "Remove code block evaluation from the C-c C-c key binding."
+  :group 'org-babel
+  :version "24.1"
+  :type 'boolean)
+
+(defcustom org-babel-results-keyword "RESULTS"
+  "Keyword used to name results generated by code blocks.
+Should be either RESULTS or NAME however any capitalization may
+be used."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-start "<<"
+  "String used to begin a noweb reference in a code block.
+See also `org-babel-noweb-wrap-end'."
+  :group 'org-babel
+  :type 'string)
+
+(defcustom org-babel-noweb-wrap-end ">>"
+  "String used to end a noweb reference in a code block.
+See also `org-babel-noweb-wrap-start'."
+  :group 'org-babel
+  :type 'string)
+
+(defun org-babel-noweb-wrap (&optional regexp)
+  (concat org-babel-noweb-wrap-start
+	  (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
+	  org-babel-noweb-wrap-end))
+
+(defvar org-babel-src-name-regexp
+  "^[ \t]*#\\+name:[ \t]*"
+  "Regular expression used to match a source name line.")
+
+(defvar org-babel-multi-line-header-regexp
+  "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
+  "Regular expression used to match multi-line header arguments.")
+
+(defvar org-babel-src-name-w-name-regexp
+  (concat org-babel-src-name-regexp
+	  "\\("
+	  org-babel-multi-line-header-regexp
+	  "\\)*"
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
+  "Regular expression matching source name lines with a name.")
+
+(defvar org-babel-src-block-regexp
+  (concat
+   ;; (1) indentation                 (2) lang
+   "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
+   ;; (3) switches
+   "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
+   ;; (4) header arguments
+   "\\([^\n]*\\)\n"
+   ;; (5) body
+   "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
+  "Regexp used to identify code blocks.")
+
+(defvar org-babel-inline-src-block-regexp
+  (concat
+   ;; (1) replacement target (2) lang
+   "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
+   ;; (3,4) (unused, headers)
+   "\\(\\|\\[\\(.*?\\)\\]\\)"
+   ;; (5) body
+   "{\\([^\f\n\r\v]+?\\)}\\)")
+  "Regexp used to identify inline src-blocks.")
+
+(defun org-babel-get-header (params key &optional others)
+  "Select only header argument of type KEY from a list.
+Optional argument OTHERS indicates that only the header that do
+not match KEY should be returned."
+  (delq nil
+	(mapcar
+	 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
+	 params)))
+
+(defun org-babel-get-inline-src-block-matches()
+  "Set match data if within body of an inline source block.
+Returns non-nil if match-data set"
+  (let ((src-at-0-p (save-excursion
+		      (beginning-of-line 1)
+		      (string= "src" (thing-at-point 'word))))
+	(first-line-p (= 1 (line-number-at-pos)))
+	(orig (point)))
+    (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
+			    (first-line-p "[[:punct:] \t]src_")
+			    (t "[[:punct:] \f\t\n\r\v]src_")))
+	  (lower-limit (if first-line-p
+			   nil
+			 (- (point-at-bol) 1))))
+      (save-excursion
+	(when (or (and src-at-0-p (bobp))
+		  (and (re-search-forward "}" (point-at-eol) t)
+		       (re-search-backward search-for lower-limit t)
+		       (> orig (point))))
+	  (when (looking-at org-babel-inline-src-block-regexp)
+	    t ))))))
+
+(defvar org-babel-inline-lob-one-liner-regexp)
+(defun org-babel-get-lob-one-liner-matches()
+  "Set match data if on line of an lob one liner.
+Returns non-nil if match-data set"
+  (save-excursion
+    (unless (= (point) (point-at-bol)) ;; move before inline block
+      (re-search-backward "[ \f\t\n\r\v]" nil t))
+    (if (looking-at org-babel-inline-lob-one-liner-regexp)
+	t
+      nil)))
+
+(defun org-babel-get-src-block-info (&optional light)
+  "Get information on the current source block.
+
+Optional argument LIGHT does not resolve remote variable
+references; a process which could likely result in the execution
+of other code blocks.
+
+Returns a list
+ (language body header-arguments-alist switches name indent)."
+  (let ((case-fold-search t) head info name indent)
+    ;; full code block
+    (if (setq head (org-babel-where-is-src-block-head))
+	(save-excursion
+	  (goto-char head)
+	  (setq info (org-babel-parse-src-block-match))
+	  (setq indent (car (last info)))
+	  (setq info (butlast info))
+	  (while (and (forward-line -1)
+		      (looking-at org-babel-multi-line-header-regexp))
+	    (setf (nth 2 info)
+		  (org-babel-merge-params
+		   (nth 2 info)
+		   (org-babel-parse-header-arguments (match-string 1)))))
+	  (when (looking-at org-babel-src-name-w-name-regexp)
+	    (setq name (org-no-properties (match-string 3)))
+	    (when (and (match-string 5) (> (length (match-string 5)) 0))
+	      (setf (nth 2 info) ;; merge functional-syntax vars and header-args
+		    (org-babel-merge-params
+		     (mapcar
+		      (lambda (ref) (cons :var ref))
+		      (mapcar
+		       (lambda (var) ;; check that each variable is initialized
+			 (if (string-match ".+=.+" var)
+			     var
+			   (error
+			    "variable \"%s\"%s must be assigned a default value"
+			    var (if name (format " in block \"%s\"" name) ""))))
+		       (org-babel-ref-split-args (match-string 5))))
+		     (nth 2 info))))))
+      ;; inline source block
+      (when (org-babel-get-inline-src-block-matches)
+	(setq info (org-babel-parse-inline-src-block-match))))
+    ;; resolve variable references and add summary parameters
+    (when (and info (not light))
+      (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
+    (when info (append info (list name indent)))))
+
+(defvar org-current-export-file) ; dynamically bound
+(defun org-babel-confirm-evaluate (info)
+  "Confirm evaluation of the code block INFO.
+This behavior can be suppressed by setting the value of
+`org-confirm-babel-evaluate' to nil, in which case all future
+interactive code block evaluations will proceed without any
+confirmation from the user.
+
+Note disabling confirmation may result in accidental evaluation
+of potentially harmful code."
+  (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
+		   (when (assoc :noeval (nth 2 info)) "no")))
+         (query (cond ((equal eval "query") t)
+		      ((and (boundp 'org-current-export-file)
+			    org-current-export-file
+			    (equal eval "query-export")) t)
+                      ((functionp org-confirm-babel-evaluate)
+                       (funcall org-confirm-babel-evaluate
+                                (nth 0 info) (nth 1 info)))
+                      (t org-confirm-babel-evaluate))))
+    (if (or (equal eval "never") (equal eval "no")
+	    (and (boundp 'org-current-export-file)
+		 org-current-export-file
+		 (or (equal eval "no-export")
+		     (equal eval "never-export")))
+	    (and query
+		 (not (yes-or-no-p
+		       (format "Evaluate this%scode block%son your system? "
+			       (if info (format " %s " (nth 0 info)) " ")
+			       (if (nth 4 info)
+				   (format " (%s) " (nth 4 info)) " "))))))
+	(prog1 nil (message "Evaluation %s"
+			    (if (or (equal eval "never") (equal eval "no")
+				    (equal eval "no-export")
+				    (equal eval "never-export"))
+				"Disabled" "Aborted")))
+      t)))
+
+;;;###autoload
+(defun org-babel-execute-safely-maybe ()
+  (unless org-babel-no-eval-on-ctrl-c-ctrl-c
+    (org-babel-execute-maybe)))
+
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
+
+;;;###autoload
+(defun org-babel-execute-maybe ()
+  (interactive)
+  (or (org-babel-execute-src-block-maybe)
+      (org-babel-lob-execute-maybe)))
+
+(defun org-babel-execute-src-block-maybe ()
+  "Conditionally execute a source block.
+Detect if this is context for a Babel src-block and if so
+then run `org-babel-execute-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-eval-wipe-error-buffer)
+	       (org-babel-execute-src-block current-prefix-arg info) t) nil)))
+
+;;;###autoload
+(defun org-babel-view-src-block-info ()
+  "Display information on the current source block.
+This includes header arguments, language and name, and is largely
+a window into the `org-babel-get-src-block-info' function."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info 'light))
+	(full (lambda (it) (> (length it) 0)))
+	(printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
+    (when info
+      (with-help-window (help-buffer)
+	(let ((name        (nth 4 info))
+	      (lang        (nth 0 info))
+	      (switches    (nth 3 info))
+	      (header-args (nth 2 info)))
+	  (when name            (funcall printf "Name: %s\n"     name))
+	  (when lang            (funcall printf "Lang: %s\n"     lang))
+	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
+	  (funcall printf "Header Arguments:\n")
+	  (dolist (pair (sort header-args
+			      (lambda (a b) (string< (symbol-name (car a))
+						     (symbol-name (car b))))))
+	    (when (funcall full (cdr pair))
+	      (funcall printf "\t%S%s\t%s\n"
+		       (car pair)
+		       (if (> (length (format "%S" (car pair))) 7) "" "\t")
+		       (cdr pair)))))))))
+
+;;;###autoload
+(defun org-babel-expand-src-block-maybe ()
+  "Conditionally expand a source block.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-expand-src-block'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-expand-src-block current-prefix-arg info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-load-in-session-maybe ()
+  "Conditionally load a source block in a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-load-in-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info
+	(progn (org-babel-load-in-session current-prefix-arg info) t)
+      nil)))
+
+(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
+
+;;;###autoload
+(defun org-babel-pop-to-session-maybe ()
+  "Conditionally pop to a session.
+Detect if this is context for a org-babel src-block and if so
+then run `org-babel-pop-to-session'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
+
+(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
+
+(defconst org-babel-common-header-args-w-values
+  '((cache	. ((no yes)))
+    (cmdline	. :any)
+    (colnames	. ((nil no yes)))
+    (comments	. ((no link yes org both noweb)))
+    (dir	. :any)
+    (eval	. ((never query)))
+    (exports	. ((code results both none)))
+    (file	. :any)
+    (file-desc  . :any)
+    (hlines	. ((no yes)))
+    (mkdirp	. ((yes no)))
+    (no-expand)
+    (noeval)
+    (noweb	. ((yes no tangle no-export strip-export)))
+    (noweb-ref	. :any)
+    (noweb-sep  . :any)
+    (padline	. ((yes no)))
+    (results	. ((file list vector table scalar verbatim)
+		   (raw html latex org code pp drawer)
+		   (replace silent none append prepend)
+		   (output value)))
+    (rownames	. ((no yes)))
+    (sep	. :any)
+    (session	. :any)
+    (shebang	. :any)
+    (tangle	. ((tangle yes no :any)))
+    (var	. :any)
+    (wrap       . :any)))
+
+(defconst org-babel-header-arg-names
+  (mapcar #'car org-babel-common-header-args-w-values)
+  "Common header arguments used by org-babel.
+Note that individual languages may define their own language
+specific header arguments as well.")
+
+(defvar org-babel-default-header-args
+  '((:session . "none") (:results . "replace") (:exports . "code")
+    (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
+    (:padnewline . "yes"))
+  "Default arguments to use when evaluating a source block.")
+
+(defvar org-babel-default-inline-header-args
+  '((:session . "none") (:results . "replace") (:exports . "results"))
+  "Default arguments to use when evaluating an inline source block.")
+
+(defvar org-babel-data-names '("tblname" "results" "name"))
+
+(defvar org-babel-result-regexp
+  (concat "^[ \t]*#\\+"
+	  (regexp-opt org-babel-data-names t)
+	  "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
+  "Regular expression used to match result lines.
+If the results are associated with a hash key then the hash will
+be saved in the second match data.")
+
+(defvar org-babel-result-w-name-regexp
+  (concat org-babel-result-regexp
+	  "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
+
+(defvar org-babel-min-lines-for-block-output 10
+  "The minimum number of lines for block output.
+If number of lines of output is equal to or exceeds this
+value, the output is placed in a #+begin_example...#+end_example
+block.  Otherwise the output is marked as literal by inserting
+colons at the starts of the lines.  This variable only takes
+effect if the :results output option is in effect.")
+
+(defvar org-babel-noweb-error-langs nil
+  "Languages for which Babel will raise literate programming errors.
+List of languages for which errors should be raised when the
+source code block satisfying a noweb reference in this language
+can not be resolved.")
+
+(defvar org-babel-hash-show 4
+  "Number of initial characters to show of a hidden results hash.")
+
+(defvar org-babel-after-execute-hook nil
+  "Hook for functions to be called after `org-babel-execute-src-block'")
+
+(defun org-babel-named-src-block-regexp-for-name (name)
+  "This generates a regexp used to match a src block named NAME."
+  (concat org-babel-src-name-regexp (regexp-quote name)
+	  "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
+	  (substring org-babel-src-block-regexp 1)))
+
+(defun org-babel-named-data-regexp-for-name (name)
+  "This generates a regexp used to match data named NAME."
+  (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
+
+;;; ob-keys
+
+(defvar org-babel-key-prefix "\C-c\C-v"
+  "The key prefix for Babel interactive key-bindings.
+See `org-babel-key-bindings' for the list of interactive babel
+functions which are assigned key bindings, and see
+`org-babel-map' for the actual babel keymap.")
+
+(defvar org-babel-map (make-sparse-keymap)
+  "The keymap for interactive Babel functions.")
+
+;;;###autoload
+(defun org-babel-describe-bindings ()
+  "Describe all keybindings behind `org-babel-key-prefix'."
+  (interactive)
+  (describe-bindings org-babel-key-prefix))
+
+(defvar org-babel-key-bindings
+  '(("p" . org-babel-previous-src-block)
+    ("\C-p" . org-babel-previous-src-block)
+    ("n" . org-babel-next-src-block)
+    ("\C-n" . org-babel-next-src-block)
+    ("e" . org-babel-execute-maybe)
+    ("\C-e" . org-babel-execute-maybe)
+    ("o" . org-babel-open-src-block-result)
+    ("\C-o" . org-babel-open-src-block-result)
+    ("\C-v" . org-babel-expand-src-block)
+    ("v" . org-babel-expand-src-block)
+    ("u" . org-babel-goto-src-block-head)
+    ("\C-u" . org-babel-goto-src-block-head)
+    ("g" . org-babel-goto-named-src-block)
+    ("r" . org-babel-goto-named-result)
+    ("\C-r" . org-babel-goto-named-result)
+    ("\C-b" . org-babel-execute-buffer)
+    ("b" . org-babel-execute-buffer)
+    ("\C-s" . org-babel-execute-subtree)
+    ("s" . org-babel-execute-subtree)
+    ("\C-d" . org-babel-demarcate-block)
+    ("d" . org-babel-demarcate-block)
+    ("\C-t" . org-babel-tangle)
+    ("t" . org-babel-tangle)
+    ("\C-f" . org-babel-tangle-file)
+    ("f" . org-babel-tangle-file)
+    ("\C-c" . org-babel-check-src-block)
+    ("c" . org-babel-check-src-block)
+    ("\C-j" . org-babel-insert-header-arg)
+    ("j" . org-babel-insert-header-arg)
+    ("\C-l" . org-babel-load-in-session)
+    ("l" . org-babel-load-in-session)
+    ("\C-i" . org-babel-lob-ingest)
+    ("i" . org-babel-lob-ingest)
+    ("\C-I" . org-babel-view-src-block-info)
+    ("I" . org-babel-view-src-block-info)
+    ("\C-z" . org-babel-switch-to-session)
+    ("z" . org-babel-switch-to-session-with-code)
+    ("\C-a" . org-babel-sha1-hash)
+    ("a" . org-babel-sha1-hash)
+    ("h" . org-babel-describe-bindings)
+    ("\C-x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("x" . org-babel-do-key-sequence-in-edit-buffer)
+    ("\C-\M-h" . org-babel-mark-block))
+  "Alist of key bindings and interactive Babel functions.
+This list associates interactive Babel functions
+with keys.  Each element of this list will add an entry to the
+`org-babel-map' using the letter key which is the `car' of the
+a-list placed behind the generic `org-babel-key-prefix'.")
+
+;;; functions
+(defvar call-process-region)
+
+;;;###autoload
+(defun org-babel-execute-src-block (&optional arg info params)
+  "Execute the current source code block.
+Insert the results of execution into the buffer.  Source code
+execution and the collection and formatting of results can be
+controlled through a variety of header arguments.
+
+With prefix argument ARG, force re-execution even if an existing
+result cached in the buffer would otherwise have been returned.
+
+Optionally supply a value for INFO in the form returned by
+`org-babel-get-src-block-info'.
+
+Optionally supply a value for PARAMS which will be merged with
+the header arguments specified at the front of the source code
+block."
+  (interactive)
+  (let ((info (or info (org-babel-get-src-block-info))))
+    (when (org-babel-confirm-evaluate
+	   (let ((i info))
+	     (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
+	     i))
+      (let* ((lang (nth 0 info))
+	     (params (if params
+			 (org-babel-process-params
+			  (org-babel-merge-params (nth 2 info) params))
+		       (nth 2 info)))
+	     (cache? (and (not arg) (cdr (assoc :cache params))
+			  (string= "yes" (cdr (assoc :cache params)))))
+	     (result-params (cdr (assoc :result-params params)))
+	     (new-hash (when cache? (org-babel-sha1-hash info)))
+	     (old-hash (when cache? (org-babel-current-result-hash)))
+	     (body (setf (nth 1 info)
+			 (if (org-babel-noweb-p params :eval)
+			     (org-babel-expand-noweb-references info)
+			   (nth 1 info))))
+	     (dir (cdr (assoc :dir params)))
+	     (default-directory
+	       (or (and dir (file-name-as-directory (expand-file-name dir)))
+		   default-directory))
+	     (org-babel-call-process-region-original
+	      (if (boundp 'org-babel-call-process-region-original)
+		  org-babel-call-process-region-original
+		(symbol-function 'call-process-region)))
+	     (indent (car (last info)))
+	     result cmd)
+	(unwind-protect
+	    (let ((call-process-region
+		   (lambda (&rest args)
+		     (apply 'org-babel-tramp-handle-call-process-region args))))
+	      (let ((lang-check (lambda (f)
+				  (let ((f (intern (concat "org-babel-execute:" f))))
+				    (when (fboundp f) f)))))
+		(setq cmd
+		      (or (funcall lang-check lang)
+			  (funcall lang-check (symbol-name
+					       (cdr (assoc lang org-src-lang-modes))))
+			  (error "No org-babel-execute function for %s!" lang))))
+	      (if (and (not arg) new-hash (equal new-hash old-hash))
+		  (save-excursion ;; return cached result
+		    (goto-char (org-babel-where-is-src-block-result nil info))
+		    (end-of-line 1) (forward-char 1)
+		    (setq result (org-babel-read-result))
+		    (message (replace-regexp-in-string
+			      "%" "%%" (format "%S" result))) result)
+		(message "executing %s code block%s..."
+			 (capitalize lang)
+			 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
+		(if (member "none" result-params)
+		    (progn
+		      (funcall cmd body params)
+		      (message "result silenced"))
+		(setq result
+		      ((lambda (result)
+			 (if (and (eq (cdr (assoc :result-type params)) 'value)
+				  (or (member "vector" result-params)
+				      (member "table" result-params))
+				  (not (listp result)))
+			     (list (list result)) result))
+		       (funcall cmd body params)))
+		;; if non-empty result and :file then write to :file
+		(when (cdr (assoc :file params))
+		  (when result
+		    (with-temp-file (cdr (assoc :file params))
+		      (insert
+		       (org-babel-format-result
+			result (cdr (assoc :sep (nth 2 info)))))))
+		  (setq result (cdr (assoc :file params))))
+		(org-babel-insert-result
+		 result result-params info new-hash indent lang)
+		(run-hooks 'org-babel-after-execute-hook)
+		result
+		)))
+	  (setq call-process-region 'org-babel-call-process-region-original))))))
+
+(defun org-babel-expand-body:generic (body params &optional var-lines)
+  "Expand BODY with PARAMS.
+Expand a block of code with org-babel according to its header
+arguments.  This generic implementation of body expansion is
+called for languages which have not defined their own specific
+org-babel-expand-body:lang function."
+  (mapconcat #'identity (append var-lines (list body)) "\n"))
+
+;;;###autoload
+(defun org-babel-expand-src-block (&optional arg info params)
+  "Expand the current source code block.
+Expand according to the source code block's header
+arguments and pop open the results in a preview buffer."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+	 (params (setf (nth 2 info)
+                       (sort (org-babel-merge-params (nth 2 info) params)
+                             (lambda (el1 el2) (string< (symbol-name (car el1))
+							(symbol-name (car el2)))))))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+			 (org-babel-expand-noweb-references info) (nth 1 info))))
+         (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
+	 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
+					  lang)))
+         (expanded
+	  (if (fboundp expand-cmd) (funcall expand-cmd body params)
+	    (org-babel-expand-body:generic
+	     body params (and (fboundp assignments-cmd)
+			      (funcall assignments-cmd params))))))
+    (org-edit-src-code
+     nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
+
+(defun org-babel-edit-distance (s1 s2)
+  "Return the edit (levenshtein) distance between strings S1 S2."
+  (let* ((l1 (length s1))
+	 (l2 (length s2))
+	 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
+				(number-sequence 1 (1+ l1)))))
+	 (in (lambda (i j) (aref (aref dist i) j))))
+    (setf (aref (aref dist 0) 0) 0)
+    (dolist (j (number-sequence 1 l2))
+      (setf (aref (aref dist 0) j) j))
+    (dolist (i (number-sequence 1 l1))
+      (setf (aref (aref dist i) 0) i)
+      (dolist (j (number-sequence 1 l2))
+	(setf (aref (aref dist i) j)
+	      (min
+	       (1+ (funcall in (1- i) j))
+	       (1+ (funcall in i (1- j)))
+	       (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
+		  (funcall in (1- i) (1- j)))))))
+    (funcall in l1 l2)))
+
+(defun org-babel-combine-header-arg-lists (original &rest others)
+  "Combine a number of lists of header argument names and arguments."
+  (let ((results (copy-sequence original)))
+    (dolist (new-list others)
+      (dolist (arg-pair new-list)
+	(let ((header (car arg-pair))
+	      (args (cdr arg-pair)))
+	  (setq results
+		(cons arg-pair (org-remove-if
+				(lambda (pair) (equal header (car pair)))
+				results))))))
+    results))
+
+;;;###autoload
+(defun org-babel-check-src-block ()
+  "Check for misspelled header arguments in the current code block."
+  (interactive)
+  ;; TODO: report malformed code block
+  ;; TODO: report incompatible combinations of header arguments
+  ;; TODO: report uninitialized variables
+  (let ((too-close 2) ;; <- control closeness to report potential match
+	(names (mapcar #'symbol-name org-babel-header-arg-names)))
+    (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
+			    (and (org-babel-where-is-src-block-head)
+				 (org-babel-parse-header-arguments
+				  (org-no-properties
+				   (match-string 4))))))
+      (dolist (name names)
+	(when (and (not (string= header name))
+		   (<= (org-babel-edit-distance header name) too-close)
+		   (not (member header names)))
+	  (error "Supplied header \"%S\" is suspiciously close to \"%S\""
+		 header name))))
+    (message "No suspicious header arguments found.")))
+
+;;;###autoload
+(defun org-babel-insert-header-arg ()
+  "Insert a header argument selecting from lists of common args and values."
+  (interactive)
+  (let* ((lang (car (org-babel-get-src-block-info 'light)))
+	 (lang-headers (intern (concat "org-babel-header-args:" lang)))
+	 (headers (org-babel-combine-header-arg-lists
+		   org-babel-common-header-args-w-values
+		   (if (boundp lang-headers) (eval lang-headers) nil)))
+	 (arg (org-icompleting-read
+	       "Header Arg: "
+	       (mapcar
+		(lambda (header-spec) (symbol-name (car header-spec)))
+		headers))))
+    (insert ":" arg)
+    (let ((vals (cdr (assoc (intern arg) headers))))
+      (when vals
+	(insert
+	 " "
+	 (cond
+	  ((eq vals :any)
+	   (read-from-minibuffer "value: "))
+	  ((listp vals)
+	   (mapconcat
+	    (lambda (group)
+	      (let ((arg (org-icompleting-read
+			  "value: "
+			  (cons "default" (mapcar #'symbol-name group)))))
+		(if (and arg (not (string= "default" arg)))
+		    (concat arg " ")
+		  "")))
+	    vals ""))))))))
+
+;; Add support for completing-read insertion of header arguments after ":"
+(defun org-babel-header-arg-expand ()
+  "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
+  (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
+    (org-babel-enter-header-arg-w-completion (match-string 2))))
+
+(defun org-babel-enter-header-arg-w-completion (&optional lang)
+  "Insert header argument appropriate for LANG with completion."
+  (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
+         (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
+	 (headers-w-values (org-babel-combine-header-arg-lists
+			    org-babel-common-header-args-w-values lang-headers))
+         (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
+         (header (org-completing-read "Header Arg: " headers))
+         (args (cdr (assoc (intern header) headers-w-values)))
+         (arg (when (and args (listp args))
+                (org-completing-read
+                 (format "%s: " header)
+                 (mapcar #'symbol-name (apply #'append args))))))
+    (insert (concat header " " (or arg "")))
+    (cons header arg)))
+
+(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
+
+;;;###autoload
+(defun org-babel-load-in-session (&optional arg info)
+  "Load the body of the current source-code block.
+Evaluate the header arguments for the source block before
+entering the session.  After loading the body this pops open the
+session."
+  (interactive)
+  (let* ((info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (params (nth 2 info))
+         (body (setf (nth 1 info)
+		     (if (org-babel-noweb-p params :eval)
+                         (org-babel-expand-noweb-references info)
+		       (nth 1 info))))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (cmd (intern (concat "org-babel-load-session:" lang))))
+    (unless (fboundp cmd)
+      (error "No org-babel-load-session function for %s!" lang))
+    (pop-to-buffer (funcall cmd session body params))
+    (end-of-line 1)))
+
+;;;###autoload
+(defun org-babel-initiate-session (&optional arg info)
+  "Initiate session for current code block.
+If called with a prefix argument then resolve any variable
+references in the header arguments and assign these variables in
+the session.  Copy the body of the code block to the kill ring."
+  (interactive "P")
+  (let* ((info (or info (org-babel-get-src-block-info (not arg))))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+         (params (nth 2 info))
+         (session (cdr (assoc :session params)))
+	 (dir (cdr (assoc :dir params)))
+	 (default-directory
+	   (or (and dir (file-name-as-directory dir)) default-directory))
+	 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
+	 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
+    (if (and (stringp session) (string= session "none"))
+	(error "This block is not using a session!"))
+    (unless (fboundp init-cmd)
+      (error "No org-babel-initiate-session function for %s!" lang))
+    (with-temp-buffer (insert (org-babel-trim body))
+                      (copy-region-as-kill (point-min) (point-max)))
+    (when arg
+      (unless (fboundp prep-cmd)
+	(error "No org-babel-prep-session function for %s!" lang))
+      (funcall prep-cmd session params))
+    (funcall init-cmd session params)))
+
+;;;###autoload
+(defun org-babel-switch-to-session (&optional arg info)
+  "Switch to the session of the current code block.
+Uses `org-babel-initiate-session' to start the session.  If called
+with a prefix argument then this is passed on to
+`org-babel-initiate-session'."
+  (interactive "P")
+  (pop-to-buffer (org-babel-initiate-session arg info))
+  (end-of-line 1))
+
+(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
+
+;;;###autoload
+(defun org-babel-switch-to-session-with-code (&optional arg info)
+  "Switch to code buffer and display session."
+  (interactive "P")
+  (let ((swap-windows
+	 (lambda ()
+	   (let ((other-window-buffer (window-buffer (next-window))))
+	     (set-window-buffer (next-window) (current-buffer))
+	     (set-window-buffer (selected-window) other-window-buffer))
+	   (other-window 1)))
+	(info (org-babel-get-src-block-info))
+	(org-src-window-setup 'reorganize-frame))
+    (save-excursion
+      (org-babel-switch-to-session arg info))
+    (org-edit-src-code)
+    (funcall swap-windows)))
+
+(defmacro org-babel-do-in-edit-buffer (&rest body)
+  "Evaluate BODY in edit buffer if there is a code block at point.
+Return t if a code block was found at point, nil otherwise."
+  `(let ((org-src-window-setup 'switch-invisibly))
+     (when (and (org-babel-where-is-src-block-head)
+		(org-edit-src-code nil nil nil))
+       (unwind-protect (progn ,@body)
+	 (if (org-bound-and-true-p org-edit-src-from-org-mode)
+	     (org-edit-src-exit)))
+       t)))
+(def-edebug-spec org-babel-do-in-edit-buffer (body))
+
+(defun org-babel-do-key-sequence-in-edit-buffer (key)
+  "Read key sequence and execute the command in edit buffer.
+Enter a key sequence to be executed in the language major-mode
+edit buffer.  For example, TAB will alter the contents of the
+Org-mode code block according to the effect of TAB in the
+language major-mode buffer.  For languages that support
+interactive sessions, this can be used to send code from the Org
+buffer to the session for evaluation using the native major-mode
+evaluation mechanisms."
+  (interactive "kEnter key-sequence to execute in edit buffer: ")
+  (org-babel-do-in-edit-buffer
+   (call-interactively
+    (key-binding (or key (read-key-sequence nil))))))
+
+(defvar org-bracket-link-regexp)
+
+;;;###autoload
+(defun org-babel-open-src-block-result (&optional re-run)
+  "If `point' is on a src block then open the results of the
+source code block, otherwise return nil.  With optional prefix
+argument RE-RUN the source-code block is evaluated even if
+results already exist."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info)))
+    (when info
+      (save-excursion
+	;; go to the results, if there aren't any then run the block
+	(goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
+		       (progn (org-babel-execute-src-block)
+			      (org-babel-where-is-src-block-result))))
+	(end-of-line 1)
+	(while (looking-at "[\n\r\t\f ]") (forward-char 1))
+	;; open the results
+	(if (looking-at org-bracket-link-regexp)
+	    ;; file results
+	    (org-open-at-point)
+	  (let ((r (org-babel-format-result
+		    (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
+	    (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
+	    (delete-region (point-min) (point-max))
+	    (insert r)))
+	t))))
+
+;;;###autoload
+(defmacro org-babel-map-src-blocks (file &rest body)
+  "Evaluate BODY forms on each source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer.  During evaluation of BODY the following local variables
+are set relative to the currently matched code block.
+
+full-block ------- string holding the entirety of the code block
+beg-block -------- point at the beginning of the code block
+end-block -------- point at the end of the matched code block
+lang ------------- string holding the language of the code block
+beg-lang --------- point at the beginning of the lang
+end-lang --------- point at the end of the lang
+switches --------- string holding the switches
+beg-switches ----- point at the beginning of the switches
+end-switches ----- point at the end of the switches
+header-args ------ string holding the header-args
+beg-header-args -- point at the beginning of the header-args
+end-header-args -- point at the end of the header-args
+body ------------- string holding the body of the code block
+beg-body --------- point at the beginning of the body
+end-body --------- point at the end of the body"
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-src-block-regexp nil t)
+	   (goto-char (match-beginning 0))
+	   (let ((full-block (match-string 0))
+		 (beg-block (match-beginning 0))
+		 (end-block (match-end 0))
+		 (lang (match-string 2))
+		 (beg-lang (match-beginning 2))
+		 (end-lang (match-end 2))
+		 (switches (match-string 3))
+		 (beg-switches (match-beginning 3))
+		 (end-switches (match-end 3))
+		 (header-args (match-string 4))
+		 (beg-header-args (match-beginning 4))
+		 (end-header-args (match-end 4))
+		 (body (match-string 5))
+		 (beg-body (match-beginning 5))
+		 (end-body (match-end 5)))
+	     ,@body
+	     (goto-char end-block))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-src-blocks (form body))
+
+;;;###autoload
+(defmacro org-babel-map-inline-src-blocks (file &rest body)
+  "Evaluate BODY forms on each inline source-block in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-inline-src-blocks (form body))
+
+(defvar org-babel-lob-one-liner-regexp)
+
+;;;###autoload
+(defmacro org-babel-map-call-lines (file &rest body)
+  "Evaluate BODY forms on each call line in FILE.
+If FILE is nil evaluate BODY forms on source blocks in current
+buffer."
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file")))
+    `(let* ((,tempvar ,file)
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
+	   (goto-char (match-beginning 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-call-lines (form body))
+
+;;;###autoload
+(defmacro org-babel-map-executables (file &rest body)
+  (declare (indent 1))
+  (let ((tempvar (make-symbol "file"))
+	(rx (make-symbol "rx")))
+    `(let* ((,tempvar ,file)
+	    (,rx (concat "\\(" org-babel-src-block-regexp
+			 "\\|" org-babel-inline-src-block-regexp
+			 "\\|" org-babel-lob-one-liner-regexp "\\)"))
+	    (visited-p (or (null ,tempvar)
+			   (get-file-buffer (expand-file-name ,tempvar))))
+	    (point (point)) to-be-removed)
+       (save-window-excursion
+	 (when ,tempvar (find-file ,tempvar))
+	 (setq to-be-removed (current-buffer))
+	 (goto-char (point-min))
+	 (while (re-search-forward ,rx nil t)
+	   (goto-char (match-beginning 1))
+	   (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
+	   (save-match-data ,@body)
+	   (goto-char (match-end 0))))
+       (unless visited-p (kill-buffer to-be-removed))
+       (goto-char point))))
+(def-edebug-spec org-babel-map-executables (form body))
+
+;;;###autoload
+(defun org-babel-execute-buffer (&optional arg)
+  "Execute source code blocks in a buffer.
+Call `org-babel-execute-src-block' on every source block in
+the current buffer."
+  (interactive "P")
+  (org-babel-eval-wipe-error-buffer)
+  (org-save-outline-visibility t
+    (org-babel-map-executables nil
+      (if (looking-at org-babel-lob-one-liner-regexp)
+          (org-babel-lob-execute-maybe)
+        (org-babel-execute-src-block arg)))))
+
+;;;###autoload
+(defun org-babel-execute-subtree (&optional arg)
+  "Execute source code blocks in a subtree.
+Call `org-babel-execute-src-block' on every source block in
+the current subtree."
+  (interactive "P")
+  (save-restriction
+    (save-excursion
+      (org-narrow-to-subtree)
+      (org-babel-execute-buffer arg)
+      (widen))))
+
+;;;###autoload
+(defun org-babel-sha1-hash (&optional info)
+  "Generate an sha1 hash based on the value of info."
+  (interactive)
+  (let ((print-level nil)
+	(info (or info (org-babel-get-src-block-info))))
+    (setf (nth 2 info)
+	  (sort (copy-sequence (nth 2 info))
+		(lambda (a b) (string< (car a) (car b)))))
+    (let* ((rm (lambda (lst)
+		 (dolist (p '("replace" "silent" "none"
+			      "append" "prepend"))
+		   (setq lst (remove p lst)))
+		 lst))
+	   (norm (lambda (arg)
+		   (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
+				(copy-sequence (cdr arg))
+			      (cdr arg))))
+		     (when (and v (not (and (sequencep v)
+					    (not (consp v))
+					    (= (length v) 0))))
+		       (cond
+			((and (listp v) ; lists are sorted
+			      (member (car arg) '(:result-params)))
+			 (sort (funcall rm v) #'string<))
+			((and (stringp v) ; strings are sorted
+			      (member (car arg) '(:results :exports)))
+			 (mapconcat #'identity (sort (funcall rm (split-string v))
+						     #'string<) " "))
+			(t v)))))))
+      ((lambda (hash)
+	 (when (org-called-interactively-p 'interactive) (message hash)) hash)
+       (let ((it (format "%s-%s"
+			 (mapconcat
+			  #'identity
+			  (delq nil (mapcar (lambda (arg)
+					      (let ((normalized (funcall norm arg)))
+						(when normalized
+						  (format "%S" normalized))))
+					    (nth 2 info))) ":")
+			 (nth 1 info))))
+	 (sha1 it))))))
+
+(defun org-babel-current-result-hash ()
+  "Return the current in-buffer hash."
+  (org-babel-where-is-src-block-result)
+  (org-no-properties (match-string 3)))
+
+(defun org-babel-set-current-result-hash (hash)
+  "Set the current in-buffer hash to HASH."
+  (org-babel-where-is-src-block-result)
+  (save-excursion (goto-char (match-beginning 3))
+		  ;; (mapc #'delete-overlay (overlays-at (point)))
+		  (replace-match hash nil nil nil 3)
+		  (org-babel-hide-hash)))
+
+(defun org-babel-hide-hash ()
+  "Hide the hash in the current results line.
+Only the initial `org-babel-hash-show' characters of the hash
+will remain visible."
+  (add-to-invisibility-spec '(org-babel-hide-hash . t))
+  (save-excursion
+    (when (and (re-search-forward org-babel-result-regexp nil t)
+               (match-string 3))
+      (let* ((start (match-beginning 3))
+             (hide-start (+ org-babel-hash-show start))
+             (end (match-end 3))
+             (hash (match-string 3))
+             ov1 ov2)
+        (setq ov1 (make-overlay start hide-start))
+        (setq ov2 (make-overlay hide-start end))
+        (overlay-put ov2 'invisible 'org-babel-hide-hash)
+        (overlay-put ov1 'babel-hash hash)))))
+
+(defun org-babel-hide-all-hashes ()
+  "Hide the hash in the current buffer.
+Only the initial `org-babel-hash-show' characters of each hash
+will remain visible.  This function should be called as part of
+the `org-mode-hook'."
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (goto-char (match-beginning 0))
+      (org-babel-hide-hash)
+      (goto-char (match-end 0)))))
+(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
+
+(defun org-babel-hash-at-point (&optional point)
+  "Return the value of the hash at POINT.
+The hash is also added as the last element of the kill ring.
+This can be called with C-c C-c."
+  (interactive)
+  (let ((hash (car (delq nil (mapcar
+			      (lambda (ol) (overlay-get ol 'babel-hash))
+                              (overlays-at (or point (point))))))))
+    (when hash (kill-new hash) (message hash))))
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
+
+(defun org-babel-result-hide-spec ()
+  "Hide portions of results lines.
+Add `org-babel-hide-result' as an invisibility spec for hiding
+portions of results lines."
+  (add-to-invisibility-spec '(org-babel-hide-result . t)))
+(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
+
+(defvar org-babel-hide-result-overlays nil
+  "Overlays hiding results.")
+
+(defun org-babel-result-hide-all ()
+  "Fold all results in the current buffer."
+  (interactive)
+  (org-babel-show-result-all)
+  (save-excursion
+    (while (re-search-forward org-babel-result-regexp nil t)
+      (save-excursion (goto-char (match-beginning 0))
+                      (org-babel-hide-result-toggle-maybe)))))
+
+(defun org-babel-show-result-all ()
+  "Unfold all results in the current buffer."
+  (mapc 'delete-overlay org-babel-hide-result-overlays)
+  (setq org-babel-hide-result-overlays nil))
+
+;;;###autoload
+(defun org-babel-hide-result-toggle-maybe ()
+  "Toggle visibility of result at point."
+  (interactive)
+  (let ((case-fold-search t))
+    (if (save-excursion
+          (beginning-of-line 1)
+          (looking-at org-babel-result-regexp))
+        (progn (org-babel-hide-result-toggle)
+               t) ;; to signal that we took action
+      nil))) ;; to signal that we did not
+
+(defun org-babel-hide-result-toggle (&optional force)
+  "Toggle the visibility of the current result."
+  (interactive)
+  (save-excursion
+    (beginning-of-line)
+    (if (re-search-forward org-babel-result-regexp nil t)
+        (let ((start (progn (beginning-of-line 2) (- (point) 1)))
+	      (end (progn
+		     (while (looking-at org-babel-multi-line-header-regexp)
+		       (forward-line 1))
+		     (goto-char (- (org-babel-result-end) 1)) (point)))
+	      ov)
+          (if (memq t (mapcar (lambda (overlay)
+                                (eq (overlay-get overlay 'invisible)
+				    'org-babel-hide-result))
+                              (overlays-at start)))
+              (if (or (not force) (eq force 'off))
+                  (mapc (lambda (ov)
+                          (when (member ov org-babel-hide-result-overlays)
+                            (setq org-babel-hide-result-overlays
+                                  (delq ov org-babel-hide-result-overlays)))
+                          (when (eq (overlay-get ov 'invisible)
+                                    'org-babel-hide-result)
+                            (delete-overlay ov)))
+                        (overlays-at start)))
+            (setq ov (make-overlay start end))
+            (overlay-put ov 'invisible 'org-babel-hide-result)
+            ;; make the block accessible to isearch
+            (overlay-put
+             ov 'isearch-open-invisible
+             (lambda (ov)
+               (when (member ov org-babel-hide-result-overlays)
+                 (setq org-babel-hide-result-overlays
+                       (delq ov org-babel-hide-result-overlays)))
+               (when (eq (overlay-get ov 'invisible)
+                         'org-babel-hide-result)
+                 (delete-overlay ov))))
+            (push ov org-babel-hide-result-overlays)))
+      (error "Not looking at a result line"))))
+
+;; org-tab-after-check-for-cycling-hook
+(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
+;; Remove overlays when changing major mode
+(add-hook 'org-mode-hook
+	  (lambda () (org-add-hook 'change-major-mode-hook
+				   'org-babel-show-result-all 'append 'local)))
+
+(defvar org-file-properties)
+(defun org-babel-params-from-properties (&optional lang)
+  "Retrieve parameters specified as properties.
+Return an association list of any source block params which
+may be specified in the properties of the current outline entry."
+  (save-match-data
+    (let (val sym)
+      (org-babel-parse-multiple-vars
+       (delq nil
+	     (mapcar
+	      (lambda (header-arg)
+		(and (setq val (org-entry-get (point) header-arg t))
+		     (cons (intern (concat ":" header-arg))
+			   (org-babel-read val))))
+	      (mapcar
+	       #'symbol-name
+	       (mapcar
+		#'car
+		(org-babel-combine-header-arg-lists
+		 org-babel-common-header-args-w-values
+		 (progn
+		   (setq sym (intern (concat "org-babel-header-args:" lang)))
+		   (and (boundp sym) (eval sym))))))))))))
+
+(defvar org-src-preserve-indentation)
+(defun org-babel-parse-src-block-match ()
+  "Parse the results from a match of the `org-babel-src-block-regexp'."
+  (let* ((block-indentation (length (match-string 1)))
+	 (lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
+	 (switches (match-string 3))
+         (body (org-no-properties
+		(let* ((body (match-string 5))
+		       (sub-length (- (length body) 1)))
+		  (if (and (> sub-length 0)
+			   (string= "\n" (substring body sub-length)))
+		      (substring body 0 sub-length)
+		    (or body "")))))
+	 (preserve-indentation (or org-src-preserve-indentation
+				   (save-match-data
+				     (string-match "-i\\>" switches)))))
+    (list lang
+          ;; get block body less properties, protective commas, and indentation
+          (with-temp-buffer
+            (save-match-data
+              (insert (org-unescape-code-in-string body))
+	      (unless preserve-indentation (org-do-remove-indentation))
+              (buffer-string)))
+	  (org-babel-merge-params
+	   org-babel-default-header-args
+           (org-babel-params-from-properties lang)
+	   (if (boundp lang-headers) (eval lang-headers) nil)
+	   (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) ""))))
+	  switches
+	  block-indentation)))
+
+(defun org-babel-parse-inline-src-block-match ()
+  "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
+  (let* ((lang (org-no-properties (match-string 2)))
+         (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
+    (list lang
+          (org-unescape-code-in-string (org-no-properties (match-string 5)))
+          (org-babel-merge-params
+           org-babel-default-inline-header-args
+           (org-babel-params-from-properties lang)
+           (if (boundp lang-headers) (eval lang-headers) nil)
+           (org-babel-parse-header-arguments
+            (org-no-properties (or (match-string 4) "")))))))
+
+(defun org-babel-balanced-split (string alts)
+  "Split STRING on instances of ALTS.
+ALTS is a cons of two character options where each option may be
+either the numeric code of a single character or a list of
+character alternatives.  For example to split on balanced
+instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
+  (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
+	 (matched (lambda (ch last)
+		    (if (consp alts)
+			(and (funcall matches ch (cdr alts))
+			     (funcall matches last (car alts)))
+		      (funcall matches ch alts))))
+	 (balance 0) (last 0)
+	 quote partial lst)
+    (mapc (lambda (ch)  ; split on [], (), "" balanced instances of [ \t]:
+	    (setq balance (+ balance
+			     (cond ((or (equal 91 ch) (equal 40 ch)) 1)
+				   ((or (equal 93 ch) (equal 41 ch)) -1)
+				   (t 0))))
+	    (when (and (equal 34 ch) (not (equal 92 last)))
+	      (setq quote (not quote)))
+	    (setq partial (cons ch partial))
+	    (when (and (= balance 0) (not quote) (funcall matched ch last))
+	      (setq lst (cons (apply #'string (nreverse
+					       (if (consp alts)
+						   (cddr partial)
+						 (cdr partial))))
+			      lst))
+	      (setq partial nil))
+	    (setq last ch))
+	  (string-to-list string))
+    (nreverse (cons (apply #'string (nreverse partial)) lst))))
+
+(defun org-babel-join-splits-near-ch (ch list)
+  "Join splits where \"=\" is on either end of the split."
+  (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
+	(first= (lambda (str) (= ch (aref str 0)))))
+    (reverse
+     (org-reduce (lambda (acc el)
+		   (let ((head (car acc)))
+		     (if (and head (or (funcall last= head) (funcall first= el)))
+			 (cons (concat head el) (cdr acc))
+		       (cons el acc))))
+		 list :initial-value nil))))
+
+(defun org-babel-parse-header-arguments (arg-string)
+  "Parse a string of header arguments returning an alist."
+  (when (> (length arg-string) 0)
+    (org-babel-parse-multiple-vars
+     (delq nil
+	   (mapcar
+	    (lambda (arg)
+	      (if (string-match
+		   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
+		   arg)
+		  (cons (intern (match-string 1 arg))
+			(org-babel-read (org-babel-chomp (match-string 2 arg))))
+		(cons (intern (org-babel-chomp arg)) nil)))
+	    ((lambda (raw)
+	       (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
+	     (org-babel-balanced-split arg-string '((32 9) . 58))))))))
+
+(defun org-babel-parse-multiple-vars (header-arguments)
+  "Expand multiple variable assignments behind a single :var keyword.
+
+This allows expression of multiple variables with one :var as
+shown below.
+
+#+PROPERTY: var foo=1, bar=2"
+  (let (results)
+    (mapc (lambda (pair)
+	    (if (eq (car pair) :var)
+		(mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
+			(org-babel-join-splits-near-ch
+			 61 (org-babel-balanced-split (cdr pair) 32)))
+	      (push pair results)))
+	  header-arguments)
+    (nreverse results)))
+
+(defun org-babel-process-params (params)
+  "Expand variables in PARAMS and add summary parameters."
+  (let* ((processed-vars (mapcar (lambda (el)
+				   (if (consp (cdr el))
+				       (cdr el)
+				     (org-babel-ref-parse (cdr el))))
+				 (org-babel-get-header params :var)))
+	 (vars-and-names (if (and (assoc :colname-names params)
+				  (assoc :rowname-names params))
+			     (list processed-vars)
+			   (org-babel-disassemble-tables
+			    processed-vars
+			    (cdr (assoc :hlines params))
+			    (cdr (assoc :colnames params))
+			    (cdr (assoc :rownames params)))))
+	 (raw-result (or (cdr (assoc :results params)) ""))
+	 (result-params (append
+			 (split-string (if (stringp raw-result)
+					   raw-result
+					 (eval raw-result)))
+			 (cdr (assoc :result-params params)))))
+    (append
+     (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
+     (list
+      (cons :colname-names (or (cdr (assoc :colname-names params))
+			       (cadr  vars-and-names)))
+      (cons :rowname-names (or (cdr (assoc :rowname-names params))
+			       (caddr vars-and-names)))
+      (cons :result-params result-params)
+      (cons :result-type  (cond ((member "output" result-params) 'output)
+				((member "value" result-params) 'value)
+				(t 'value))))
+     (org-babel-get-header params :var 'other))))
+
+;; row and column names
+(defun org-babel-del-hlines (table)
+  "Remove all 'hlines from TABLE."
+  (remove 'hline table))
+
+(defun org-babel-get-colnames (table)
+  "Return the column names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names."
+  (if (equal 'hline (nth 1 table))
+      (cons (cddr table) (car table))
+    (cons (cdr table) (car table))))
+
+(defun org-babel-get-rownames (table)
+  "Return the row names of TABLE.
+Return a cons cell, the `car' of which contains the TABLE less
+colnames, and the `cdr' of which contains a list of the column
+names.  Note: this function removes any hlines in TABLE."
+  (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
+	 (width (apply 'max
+		       (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
+	 (table (funcall trans (mapcar (lambda (row)
+					 (if (not (equal row 'hline))
+					     row
+					   (setq row '())
+					   (dotimes (n width)
+					     (setq row (cons 'hline row)))
+					   row))
+				       table))))
+    (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
+		  (funcall trans (cdr table)))
+	  (remove 'hline (car table)))))
+
+(defun org-babel-put-colnames (table colnames)
+  "Add COLNAMES to TABLE if they exist."
+  (if colnames (apply 'list colnames 'hline table) table))
+
+(defun org-babel-put-rownames (table rownames)
+  "Add ROWNAMES to TABLE if they exist."
+  (if rownames
+      (mapcar (lambda (row)
+                (if (listp row)
+                    (cons (or (pop rownames) "") row)
+                  row)) table)
+    table))
+
+(defun org-babel-pick-name (names selector)
+  "Select one out of an alist of row or column names.
+SELECTOR can be either a list of names in which case those names
+will be returned directly, or an index into the list NAMES in
+which case the indexed names will be return."
+  (if (listp selector)
+      selector
+    (when names
+      (if (and selector (symbolp selector) (not (equal t selector)))
+	  (cdr (assoc selector names))
+	(if (integerp selector)
+	    (nth (- selector 1) names)
+	  (cdr (car (last names))))))))
+
+(defun org-babel-disassemble-tables (vars hlines colnames rownames)
+  "Parse tables for further processing.
+Process the variables in VARS according to the HLINES,
+ROWNAMES and COLNAMES header arguments.  Return a list consisting
+of the vars, cnames and rnames."
+  (let (cnames rnames)
+    (list
+     (mapcar
+      (lambda (var)
+        (when (listp (cdr var))
+          (when (and (not (equal colnames "no"))
+                     (or colnames (and (equal (nth 1 (cdr var)) 'hline)
+                                       (not (member 'hline (cddr (cdr var)))))))
+            (let ((both (org-babel-get-colnames (cdr var))))
+              (setq cnames (cons (cons (car var) (cdr both))
+                                 cnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and rownames (not (equal rownames "no")))
+            (let ((both (org-babel-get-rownames (cdr var))))
+              (setq rnames (cons (cons (car var) (cdr both))
+                                 rnames))
+              (setq var (cons (car var) (car both)))))
+          (when (and hlines (not (equal hlines "yes")))
+            (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
+        var)
+      vars)
+     (reverse cnames) (reverse rnames))))
+
+(defun org-babel-reassemble-table (table colnames rownames)
+  "Add column and row names to a table.
+Given a TABLE and set of COLNAMES and ROWNAMES add the names
+to the table for reinsertion to org-mode."
+  (if (listp table)
+      ((lambda (table)
+         (if (and colnames (listp (car table)) (= (length (car table))
+                                                  (length colnames)))
+             (org-babel-put-colnames table colnames) table))
+       (if (and rownames (= (length table) (length rownames)))
+           (org-babel-put-rownames table rownames) table))
+    table))
+
+(defun org-babel-where-is-src-block-head ()
+  "Find where the current source block begins.
+Return the point at the beginning of the current source
+block.  Specifically at the beginning of the #+BEGIN_SRC line.
+If the point is not on a source block then return nil."
+  (let ((initial (point)) (case-fold-search t) top bottom)
+    (or
+     (save-excursion ;; on a source name line or a #+header line
+       (beginning-of-line 1)
+       (and (or (looking-at org-babel-src-name-regexp)
+		(looking-at org-babel-multi-line-header-regexp))
+	    (progn
+	      (while (and (forward-line 1)
+			  (or (looking-at org-babel-src-name-regexp)
+			      (looking-at org-babel-multi-line-header-regexp))))
+	      (looking-at org-babel-src-block-regexp))
+            (point)))
+     (save-excursion ;; on a #+begin_src line
+       (beginning-of-line 1)
+       (and (looking-at org-babel-src-block-regexp)
+            (point)))
+     (save-excursion ;; inside a src block
+       (and
+        (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
+        (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
+        (< top initial) (< initial bottom)
+        (progn (goto-char top) (beginning-of-line 1)
+	       (looking-at org-babel-src-block-regexp))
+        (point))))))
+
+;;;###autoload
+(defun org-babel-goto-src-block-head ()
+  "Go to the beginning of the current code block."
+  (interactive)
+  ((lambda (head)
+     (if head (goto-char head) (error "Not currently in a code block")))
+   (org-babel-where-is-src-block-head)))
+
+;;;###autoload
+(defun org-babel-goto-named-src-block (name)
+  "Go to a named source-code block."
+  (interactive
+   (let ((completion-ignore-case t)
+	 (case-fold-search t)
+	 (under-point (thing-at-point 'line)))
+     (list (org-icompleting-read
+	    "source-block name: " (org-babel-src-block-names) nil t
+	    (cond
+	     ;; noweb
+	     ((string-match (org-babel-noweb-wrap) under-point)
+	      (let ((block-name (match-string 1 under-point)))
+		(string-match "[^(]*" block-name)
+		(match-string 0 block-name)))
+	     ;; #+call:
+	     ((string-match org-babel-lob-one-liner-regexp under-point)
+	      (let ((source-info (car (org-babel-lob-get-info))))
+		(if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
+		    (let ((source-name (match-string 1 source-info)))
+		      source-name))))
+	     ;; #+results:
+	     ((string-match (concat "#\\+" org-babel-results-keyword
+				    "\\:\s+\\([^\\(]*\\)") under-point)
+	      (match-string 1 under-point))
+	     ;; symbol-at-point
+	     ((and (thing-at-point 'symbol))
+	      (org-babel-find-named-block (thing-at-point 'symbol))
+	      (thing-at-point 'symbol))
+	     (""))))))
+  (let ((point (org-babel-find-named-block name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (org-mark-ring-push) (goto-char point) (org-show-context))
+      (message "source-code block '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-block (name)
+  "Find a named source-code block.
+Return the location of the source block identified by source
+NAME, or nil if no such block exists.  Set match data according to
+org-babel-named-src-block-regexp."
+  (save-excursion
+    (let ((case-fold-search t)
+	  (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
+      (goto-char (point-min))
+      (when (or (re-search-forward regexp nil t)
+		(re-search-backward regexp nil t))
+        (match-beginning 0)))))
+
+(defun org-babel-src-block-names (&optional file)
+  "Returns the names of source blocks in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
+	(setq names (cons (match-string 3) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-goto-named-result (name)
+  "Go to a named result."
+  (interactive
+   (let ((completion-ignore-case t))
+     (list (org-icompleting-read "source-block name: "
+				 (org-babel-result-names) nil t))))
+  (let ((point (org-babel-find-named-result name)))
+    (if point
+        ;; taken from `org-open-at-point'
+        (progn (goto-char point) (org-show-context))
+      (message "result '%s' not found in this buffer" name))))
+
+(defun org-babel-find-named-result (name &optional point)
+  "Find a named result.
+Return the location of the result named NAME in the current
+buffer or nil if no such result exists."
+  (save-excursion
+    (let ((case-fold-search t))
+      (goto-char (or point (point-min)))
+      (catch 'is-a-code-block
+	(when (re-search-forward
+	       (concat org-babel-result-regexp
+		       "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
+	  (when (and (string= "name" (downcase (match-string 1)))
+		     (or (beginning-of-line 1)
+			 (looking-at org-babel-src-block-regexp)
+			 (looking-at org-babel-multi-line-header-regexp)))
+	    (throw 'is-a-code-block (org-babel-find-named-result name (point))))
+	  (beginning-of-line 0) (point))))))
+
+(defun org-babel-result-names (&optional file)
+  "Returns the names of results in FILE or the current buffer."
+  (save-excursion
+    (when file (find-file file)) (goto-char (point-min))
+    (let ((case-fold-search t) names)
+      (while (re-search-forward org-babel-result-w-name-regexp nil t)
+	(setq names (cons (match-string 4) names)))
+      names)))
+
+;;;###autoload
+(defun org-babel-next-src-block (&optional arg)
+  "Jump to the next source block.
+With optional prefix argument ARG, jump forward ARG many source blocks."
+  (interactive "P")
+  (when (looking-at org-babel-src-block-regexp) (forward-char 1))
+  (condition-case nil
+      (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No further code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+;;;###autoload
+(defun org-babel-previous-src-block (&optional arg)
+  "Jump to the previous source block.
+With optional prefix argument ARG, jump backward ARG many source blocks."
+  (interactive "P")
+  (condition-case nil
+      (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
+    (error (error "No previous code blocks")))
+  (goto-char (match-beginning 0)) (org-show-context))
+
+(defvar org-babel-load-languages)
+
+;;;###autoload
+(defun org-babel-mark-block ()
+  "Mark current src block."
+  (interactive)
+  ((lambda (head)
+     (when head
+       (save-excursion
+	 (goto-char head)
+	 (looking-at org-babel-src-block-regexp))
+       (push-mark (match-end 5) nil t)
+       (goto-char (match-beginning 5))))
+   (org-babel-where-is-src-block-head)))
+
+(defun org-babel-demarcate-block (&optional arg)
+  "Wrap or split the code in the region or on the point.
+When called from inside of a code block the current block is
+split.  When called from outside of a code block a new code block
+is created.  In both cases if the region is demarcated and if the
+region is not active then the point is demarcated."
+  (interactive "P")
+  (let ((info (org-babel-get-src-block-info 'light))
+	(headers (progn (org-babel-where-is-src-block-head)
+			(match-string 4)))
+	(stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
+    (if info
+        (mapc
+         (lambda (place)
+           (save-excursion
+             (goto-char place)
+             (let ((lang (nth 0 info))
+                   (indent (make-string (nth 5 info) ? )))
+	       (when (string-match "^[[:space:]]*$"
+				   (buffer-substring (point-at-bol)
+						     (point-at-eol)))
+		 (delete-region (point-at-bol) (point-at-eol)))
+               (insert (concat
+			(if (looking-at "^") "" "\n")
+			indent "#+end_src\n"
+			(if arg stars indent) "\n"
+			indent "#+begin_src " lang
+			(if (> (length headers) 1)
+			    (concat " " headers) headers)
+			(if (looking-at "[\n\r]")
+			    ""
+			  (concat "\n" (make-string (current-column) ? )))))))
+	   (move-end-of-line 2))
+         (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
+      (let ((start (point))
+	    (lang (org-icompleting-read "Lang: "
+					(mapcar (lambda (el) (symbol-name (car el)))
+						org-babel-load-languages)))
+	    (body (delete-and-extract-region
+		   (if (org-region-active-p) (mark) (point)) (point))))
+	(insert (concat (if (looking-at "^") "" "\n")
+			(if arg (concat stars "\n") "")
+			"#+begin_src " lang "\n"
+			body
+			(if (or (= (length body) 0)
+				(string-match "[\r\n]$" body)) "" "\n")
+			"#+end_src\n"))
+	(goto-char start) (move-end-of-line 1)))))
+
+(defvar org-babel-lob-one-liner-regexp)
+(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
+  "Find where the current source block results begin.
+Return the point at the beginning of the result of the current
+source block.  Specifically at the beginning of the results line.
+If no result exists for this block then create a results line
+following the source block."
+  (save-excursion
+    (let* ((case-fold-search t)
+	   (on-lob-line (save-excursion
+			  (beginning-of-line 1)
+			  (looking-at org-babel-lob-one-liner-regexp)))
+	   (inlinep (when (org-babel-get-inline-src-block-matches)
+		      (match-end 0)))
+	   (name (if on-lob-line
+		     (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
+		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
+	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
+	   found beg end)
+      (when head (goto-char head))
+      (org-with-wide-buffer
+       (setq
+	found ;; was there a result (before we potentially insert one)
+	(or
+	 inlinep
+	 (and
+	  ;; named results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it does not need to be rebuilt, then don't set end
+	  ;; - if it does need to be rebuilt then do set end
+	  name (setq beg (org-babel-find-named-result name))
+	  (prog1 beg
+	    (when (and hash (not (string= hash (match-string 3))))
+	      (goto-char beg) (setq end beg) ;; beginning of result
+	      (forward-line 1)
+	      (delete-region end (org-babel-result-end)) nil)))
+	 (and
+	  ;; unnamed results:
+	  ;; - return t if it is found, else return nil
+	  ;; - if it is found, and the hash doesn't match, delete and set end
+	  (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
+	  (progn (end-of-line 1)
+		 (if (eobp) (insert "\n") (forward-char 1))
+		 (setq end (point))
+		 (or (and (not name)
+			  (progn ;; unnamed results line already exists
+			    (re-search-forward "[^ \f\t\n\r\v]" nil t)
+			    (beginning-of-line 1)
+			    (looking-at
+			     (concat org-babel-result-regexp "\n")))
+			  (prog1 (point)
+			    ;; must remove and rebuild if hash!=old-hash
+			    (if (and hash (not (string= hash (match-string 3))))
+				(prog1 nil
+				  (forward-line 1)
+				  (delete-region
+				   end (org-babel-result-end)))
+			      (setq end nil))))))))))
+      (if (not (and insert end)) found
+	(goto-char end)
+	(unless beg
+	  (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
+	(insert (concat
+		 (when (wholenump indent) (make-string indent ? ))
+		 "#+" org-babel-results-keyword
+		 (when hash (concat "["hash"]"))
+		 ":"
+		 (when name (concat " " name)) "\n"))
+	(unless beg (insert "\n") (backward-char))
+	(beginning-of-line 0)
+	(if hash (org-babel-hide-hash))
+	(point)))))
+
+(defvar org-block-regexp)
+(defun org-babel-read-result ()
+  "Read the result at `point' into emacs-lisp."
+  (let ((case-fold-search t) result-string)
+    (cond
+     ((org-at-table-p) (org-babel-read-table))
+     ((org-at-item-p) (org-babel-read-list))
+     ((looking-at org-bracket-link-regexp) (org-babel-read-link))
+     ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
+     ((looking-at "^[ \t]*: ")
+      (setq result-string
+	    (org-babel-trim
+	     (mapconcat (lambda (line)
+                          (if (and (> (length line) 1)
+                                   (string-match "^[ \t]*: \\(.+\\)" line))
+                              (match-string 1 line)
+                            line))
+			(split-string
+			 (buffer-substring
+                          (point) (org-babel-result-end)) "[\r\n]+")
+			"\n")))
+      (or (org-babel-number-p result-string) result-string))
+     ((looking-at org-babel-result-regexp)
+      (save-excursion (forward-line 1) (org-babel-read-result))))))
+
+(defun org-babel-read-table ()
+  "Read the table at `point' into emacs-lisp."
+  (mapcar (lambda (row)
+            (if (and (symbolp row) (equal row 'hline)) row
+              (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
+          (org-table-to-lisp)))
+
+(defun org-babel-read-list ()
+  "Read the list at `point' into emacs-lisp."
+  (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
+	  (mapcar #'cadr (cdr (org-list-parse-list)))))
+
+(defvar org-link-types-re)
+(defun org-babel-read-link ()
+  "Read the link at `point' into emacs-lisp.
+If the path of the link is a file path it is expanded using
+`expand-file-name'."
+  (let* ((case-fold-search t)
+         (raw (and (looking-at org-bracket-link-regexp)
+                   (org-no-properties (match-string 1))))
+         (type (and (string-match org-link-types-re raw)
+                    (match-string 1 raw))))
+    (cond
+     ((not type) (expand-file-name raw))
+     ((string= type "file")
+      (and (string-match "file\\(.*\\):\\(.+\\)" raw)
+           (expand-file-name (match-string 2 raw))))
+     (t raw))))
+
+(defun org-babel-format-result (result &optional sep)
+  "Format RESULT for writing to file."
+  (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
+    (if (listp result)
+	;; table result
+	(orgtbl-to-generic
+	 result (list :sep (or sep "\t") :fmt echo-res))
+      ;; scalar result
+      (funcall echo-res result))))
+
+(defun org-babel-insert-result
+  (result &optional result-params info hash indent lang)
+  "Insert RESULT into the current buffer.
+By default RESULT is inserted after the end of the
+current source block.  With optional argument RESULT-PARAMS
+controls insertion of results in the org-mode file.
+RESULT-PARAMS can take the following values:
+
+replace - (default option) insert results after the source block
+          replacing any previously inserted results
+
+silent -- no results are inserted into the Org-mode buffer but
+          the results are echoed to the minibuffer and are
+          ingested by Emacs (a potentially time consuming
+          process)
+
+file ---- the results are interpreted as a file path, and are
+          inserted into the buffer using the Org-mode file syntax
+
+list ---- the results are interpreted as an Org-mode list.
+
+raw ----- results are added directly to the Org-mode file.  This
+          is a good option if you code block will output org-mode
+          formatted text.
+
+drawer -- results are added directly to the Org-mode file as with
+          \"raw\", but are wrapped in a RESULTS drawer, allowing
+          them to later be replaced or removed automatically.
+
+org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
+          They are not comma-escaped when inserted, but Org syntax
+          here will be discarded when exporting the file.
+
+html ---- results are added inside of a #+BEGIN_HTML block.  This
+          is a good option if you code block will output html
+          formatted text.
+
+latex --- results are added inside of a #+BEGIN_LATEX block.
+          This is a good option if you code block will output
+          latex formatted text.
+
+code ---- the results are extracted in the syntax of the source
+          code of the language being evaluated and are added
+          inside of a #+BEGIN_SRC block with the source-code
+          language set appropriately.  Note this relies on the
+          optional LANG argument."
+  (if (stringp result)
+      (progn
+        (setq result (org-no-properties result))
+        (when (member "file" result-params)
+	  (setq result (org-babel-result-to-file
+			result (when (assoc :file-desc (nth 2 info))
+				 (or (cdr (assoc :file-desc (nth 2 info)))
+				     result))))))
+    (unless (listp result) (setq result (format "%S" result))))
+  (if (and result-params (member "silent" result-params))
+      (progn
+	(message (replace-regexp-in-string "%" "%%" (format "%S" result)))
+	result)
+    (save-excursion
+      (let* ((inlinep
+	      (save-excursion
+		(when (or (org-babel-get-inline-src-block-matches)
+			  (org-babel-get-lob-one-liner-matches))
+		  (goto-char (match-end 0))
+		  (insert (if (listp result) "\n" " "))
+		  (point))))
+	     (existing-result (unless inlinep
+				(org-babel-where-is-src-block-result
+				 t info hash indent)))
+	     (results-switches
+	      (cdr (assoc :results_switches (nth 2 info))))
+	     (visible-beg (copy-marker (point-min)))
+	     (visible-end (copy-marker (point-max)))
+	     ;; When results exist outside of the current visible
+	     ;; region of the buffer, be sure to widen buffer to
+	     ;; update them.
+	     (outside-scope-p (and existing-result
+				   (or (> visible-beg existing-result)
+				       (<= visible-end existing-result))))
+	     beg end)
+	(when (and (stringp result)  ; ensure results end in a newline
+		   (not inlinep)
+		   (> (length result) 0)
+		   (not (or (string-equal (substring result -1) "\n")
+			    (string-equal (substring result -1) "\r"))))
+	  (setq result (concat result "\n")))
+	(unwind-protect
+	    (progn
+	      (when outside-scope-p (widen))
+	      (if (not existing-result)
+		  (setq beg (or inlinep (point)))
+		(goto-char existing-result)
+		(save-excursion
+		  (re-search-forward "#" nil t)
+		  (setq indent (- (current-column) 1)))
+		(forward-line 1)
+		(setq beg (point))
+		(cond
+		 ((member "replace" result-params)
+		  (delete-region (point) (org-babel-result-end)))
+		 ((member "append" result-params)
+		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
+		 ((member "prepend" result-params)))) ; already there
+	      (setq results-switches
+		    (if results-switches (concat " " results-switches) ""))
+	      (let ((wrap (lambda (start finish &optional no-escape)
+			    (goto-char end) (insert (concat finish "\n"))
+			    (goto-char beg) (insert (concat start "\n"))
+			    (unless no-escape
+			      (org-escape-code-in-region (point) end))
+			    (goto-char end) (goto-char (point-at-eol))
+			    (setq end (point-marker))))
+		    (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
+		;; insert results based on type
+		(cond
+		 ;; do nothing for an empty result
+		 ((null result))
+		 ;; insert a list if preferred
+		 ((member "list" result-params)
+		  (insert
+		   (org-babel-trim
+		    (org-list-to-generic
+		     (cons 'unordered
+			   (mapcar
+			    (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
+			    (if (listp result) result (list result))))
+		     '(:splicep nil :istart "- " :iend "\n")))
+		   "\n"))
+		 ;; assume the result is a table if it's not a string
+		 ((funcall proper-list-p result)
+		  (goto-char beg)
+		  (insert (concat (orgtbl-to-orgtbl
+				   (if (or (eq 'hline (car result))
+					   (and (listp (car result))
+						(listp (cdr (car result)))))
+				       result (list result))
+				   '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
+		  (goto-char beg) (when (org-at-table-p) (org-table-align)))
+		 ((and (listp result) (not (funcall proper-list-p result)))
+		  (insert (format "%s\n" result)))
+		 ((member "file" result-params)
+		  (when inlinep (goto-char inlinep))
+		  (insert result))
+		 (t (goto-char beg) (insert result)))
+		(when (funcall proper-list-p result) (goto-char (org-table-end)))
+		(setq end (point-marker))
+		;; possibly wrap result
+		(cond
+		 ((assoc :wrap (nth 2 info))
+		  (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
+		    (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
+		 ((member "html" result-params)
+		  (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
+		 ((member "latex" result-params)
+		  (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
+		 ((member "org" result-params)
+		  (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
+		 ((member "code" result-params)
+		  (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
+			   "#+END_SRC"))
+		 ((member "raw" result-params)
+		  (goto-char beg) (if (org-at-table-p) (org-cycle)))
+		 ((or (member "drawer" result-params)
+		      ;; Stay backward compatible with <7.9.2
+		      (member "wrap" result-params))
+		  (funcall wrap ":RESULTS:" ":END:" 'no-escape))
+		 ((and (not (funcall proper-list-p result))
+		       (not (member "file" result-params)))
+		  (org-babel-examplize-region beg end results-switches)
+		  (setq end (point)))))
+	      ;; possibly indent the results to match the #+results line
+	      (when (and (not inlinep) (numberp indent) indent (> indent 0)
+			 ;; in this case `table-align' does the work for us
+			 (not (and (listp result)
+				   (member "append" result-params))))
+		(indent-rigidly beg end indent))
+	      (if (null result)
+		  (if (member "value" result-params)
+		      (message "Code block returned no value.")
+		    (message "Code block produced no output."))
+		(message "Code block evaluation complete.")))
+	  (when outside-scope-p (narrow-to-region visible-beg visible-end))
+	  (set-marker visible-beg nil)
+	  (set-marker visible-end nil))))))
+
+(defun org-babel-remove-result (&optional info)
+  "Remove the result of the current source block."
+  (interactive)
+  (let ((location (org-babel-where-is-src-block-result nil info)) start)
+    (when location
+      (setq start (- location 1))
+      (save-excursion
+        (goto-char location) (forward-line 1)
+        (delete-region start (org-babel-result-end))))))
+
+(defun org-babel-result-end ()
+  "Return the point at the end of the current set of results."
+  (save-excursion
+    (cond
+     ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
+     ((org-at-item-p) (let* ((struct (org-list-struct))
+			     (prvs (org-list-prevs-alist struct)))
+			(org-list-get-list-end (point-at-bol) struct prvs)))
+     ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
+      (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
+	     (forward-char 1) (point)))
+     (t
+      (let ((case-fold-search t))
+	(if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
+	    (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
+				      nil t)
+		   (forward-char 1))
+	  (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
+	    (forward-line 1))))
+      (point)))))
+
+(defun org-babel-result-to-file (result &optional description)
+  "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
+If the `default-directory' is different from the containing
+file's directory then expand relative links."
+  (when (stringp result)
+    (format "[[file:%s]%s]"
+	    (if (and default-directory
+		     buffer-file-name
+		     (not (string= (expand-file-name default-directory)
+				   (expand-file-name
+				    (file-name-directory buffer-file-name)))))
+		(expand-file-name result default-directory)
+	      result)
+	    (if description (concat "[" description "]") ""))))
+
+(defvar org-babel-capitalize-examplize-region-markers nil
+  "Make true to capitalize begin/end example markers inserted by code blocks.")
+
+(defun org-babel-examplize-region (beg end &optional results-switches)
+  "Comment out region using the inline '==' or ': ' org example quote."
+  (interactive "*r")
+  (let ((chars-between (lambda (b e)
+			 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
+	(maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
+				     (upcase str) str))))
+    (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
+	    (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
+	(save-excursion
+	  (goto-char beg)
+	  (insert (format "=%s=" (prog1 (buffer-substring beg end)
+				   (delete-region beg end)))))
+      (let ((size (count-lines beg end)))
+	(save-excursion
+	  (cond ((= size 0))	      ; do nothing for an empty result
+		((< size org-babel-min-lines-for-block-output)
+		 (goto-char beg)
+		 (dotimes (n size)
+		   (beginning-of-line 1) (insert ": ") (forward-line 1)))
+		(t
+		 (goto-char beg)
+		 (insert (if results-switches
+			     (format "%s%s\n"
+				     (funcall maybe-cap "#+begin_example")
+				     results-switches)
+			   (funcall maybe-cap "#+begin_example\n")))
+		 (if (markerp end) (goto-char end) (forward-char (- end beg)))
+		 (insert (funcall maybe-cap "#+end_example\n")))))))))
+
+(defun org-babel-update-block-body (new-body)
+  "Update the body of the current code block to NEW-BODY."
+  (if (not (org-babel-where-is-src-block-head))
+      (error "Not in a source block")
+    (save-match-data
+      (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
+    (indent-rigidly (match-beginning 5) (match-end 5) 2)))
+
+(defun org-babel-merge-params (&rest plists)
+  "Combine all parameter association lists in PLISTS.
+Later elements of PLISTS override the values of previous elements.
+This takes into account some special considerations for certain
+parameters when merging lists."
+  (let* ((results-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'results org-babel-common-header-args-w-values))))
+	 (exports-exclusive-groups
+	  (mapcar (lambda (group) (mapcar #'symbol-name group))
+		  (cdr (assoc 'exports org-babel-common-header-args-w-values))))
+	 (variable-index 0)
+	 (e-merge (lambda (exclusive-groups &rest result-params)
+		    ;; maintain exclusivity of mutually exclusive parameters
+		    (let (output)
+		      (mapc (lambda (new-params)
+			      (mapc (lambda (new-param)
+				      (mapc (lambda (exclusive-group)
+					      (when (member new-param exclusive-group)
+						(mapcar (lambda (excluded-param)
+							  (setq output
+								(delete
+								 excluded-param
+								 output)))
+							exclusive-group)))
+					    exclusive-groups)
+				      (setq output (org-uniquify
+						    (cons new-param output))))
+				    new-params))
+			    result-params)
+		      output)))
+	 params results exports tangle noweb cache vars shebang comments padline)
+
+    (mapc
+     (lambda (plist)
+       (mapc
+	(lambda (pair)
+	  (case (car pair)
+	    (:var
+	     (let ((name (if (listp (cdr pair))
+			     (cadr pair)
+			   (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
+					      (cdr pair))
+				(intern (match-string 1 (cdr pair)))))))
+	       (if name
+		   (setq vars
+			 (append
+			  (if (member name (mapcar #'car vars))
+			      (delq nil
+				    (mapcar
+				     (lambda (p)
+				       (unless (equal (car p) name) p))
+				     vars))
+			    vars)
+			  (list (cons name pair))))
+		 ;; if no name is given and we already have named variables
+		 ;; then assign to named variables in order
+		 (if (and vars (nth variable-index vars))
+		     (prog1 (setf (cddr (nth variable-index vars))
+				  (concat (symbol-name
+					   (car (nth variable-index vars)))
+					  "=" (cdr pair)))
+		       (incf variable-index))
+		   (error "Variable \"%s\" must be assigned a default value"
+			  (cdr pair))))))
+	    (:results
+	     (setq results (funcall e-merge results-exclusive-groups
+				    results
+				    (split-string
+				     (let ((r (cdr pair)))
+				       (if (stringp r) r (eval r)))))))
+	    (:file
+	     (when (cdr pair)
+	       (setq results (funcall e-merge results-exclusive-groups
+				      results '("file")))
+	       (unless (or (member "both" exports)
+			   (member "none" exports)
+			   (member "code" exports))
+		 (setq exports (funcall e-merge exports-exclusive-groups
+					exports '("results"))))
+	       (setq params (cons pair (assq-delete-all (car pair) params)))))
+	    (:exports
+	     (setq exports (funcall e-merge exports-exclusive-groups
+				    exports (split-string (cdr pair)))))
+	    (:tangle ;; take the latest -- always overwrite
+	     (setq tangle (or (list (cdr pair)) tangle)))
+	    (:noweb
+	     (setq noweb (funcall e-merge
+				  '(("yes" "no" "tangle" "no-export"
+				     "strip-export" "eval"))
+				  noweb
+				  (split-string (or (cdr pair) "")))))
+	    (:cache
+	     (setq cache (funcall e-merge '(("yes" "no")) cache
+				  (split-string (or (cdr pair) "")))))
+	    (:padline
+	     (setq padline (funcall e-merge '(("yes" "no")) padline
+				    (split-string (or (cdr pair) "")))))
+	    (:shebang ;; take the latest -- always overwrite
+	     (setq shebang (or (list (cdr pair)) shebang)))
+	    (:comments
+	     (setq comments (funcall e-merge '(("yes" "no")) comments
+				     (split-string (or (cdr pair) "")))))
+	    (t ;; replace: this covers e.g. :session
+	     (setq params (cons pair (assq-delete-all (car pair) params))))))
+	plist))
+     plists)
+    (setq vars (reverse vars))
+    (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
+    (mapc
+     (lambda (hd)
+       (let ((key (intern (concat ":" (symbol-name hd))))
+	     (val (eval hd)))
+	 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
+     '(results exports tangle noweb padline cache shebang comments))
+    params))
+
+(defvar org-babel-use-quick-and-dirty-noweb-expansion nil
+  "Set to true to use regular expressions to expand noweb references.
+This results in much faster noweb reference expansion but does
+not properly allow code blocks to inherit the \":noweb-ref\"
+header argument from buffer or subtree wide properties.")
+
+(defun org-babel-noweb-p (params context)
+  "Check if PARAMS require expansion in CONTEXT.
+CONTEXT may be one of :tangle, :export or :eval."
+  (let* (intersect
+	 (intersect (lambda (as bs)
+		      (when as
+			(if (member (car as) bs)
+			    (car as)
+			  (funcall intersect (cdr as) bs))))))
+    (funcall intersect (case context
+			 (:tangle '("yes" "tangle" "no-export" "strip-export"))
+			 (:eval   '("yes" "no-export" "strip-export" "eval"))
+			 (:export '("yes")))
+	     (split-string (or (cdr (assoc :noweb params)) "")))))
+
+(defun org-babel-expand-noweb-references (&optional info parent-buffer)
+  "Expand Noweb references in the body of the current source code block.
+
+For example the following reference would be replaced with the
+body of the source-code block named 'example-block'.
+
+<<example-block>>
+
+Note that any text preceding the <<foo>> construct on a line will
+be interposed between the lines of the replacement text.  So for
+example if <<foo>> is placed behind a comment, then the entire
+replacement text will also be commented.
+
+This function must be called from inside of the buffer containing
+the source-code block which holds BODY.
+
+In addition the following syntax can be used to insert the
+results of evaluating the source-code block named 'example-block'.
+
+<<example-block()>>
+
+Any optional arguments can be passed to example-block by placing
+the arguments inside the parenthesis following the convention
+defined by `org-babel-lob'.  For example
+
+<<example-block(a=9)>>
+
+would set the value of argument \"a\" equal to \"9\".  Note that
+these arguments are not evaluated in the current source-code
+block but are passed literally to the \"example-block\"."
+  (let* ((parent-buffer (or parent-buffer (current-buffer)))
+         (info (or info (org-babel-get-src-block-info)))
+         (lang (nth 0 info))
+         (body (nth 1 info))
+	 (ob-nww-start org-babel-noweb-wrap-start)
+	 (ob-nww-end org-babel-noweb-wrap-end)
+	 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
+	 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
+			    ":noweb-ref[ \t]+" "\\)"))
+         (new-body "")
+	 (nb-add (lambda (text) (setq new-body (concat new-body text))))
+	 (c-wrap (lambda (text)
+		   (with-temp-buffer
+		     (funcall (intern (concat lang "-mode")))
+		     (comment-region (point) (progn (insert text) (point)))
+		     (org-babel-trim (buffer-string)))))
+	 index source-name evaluate prefix blocks-in-buffer)
+    (with-temp-buffer
+      (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
+      (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
+      (insert body) (goto-char (point-min))
+      (setq index (point))
+      (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
+	(save-match-data (setf source-name (match-string 1)))
+	(save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
+	(save-match-data
+	  (setq prefix
+		(buffer-substring (match-beginning 0)
+				  (save-excursion
+				    (beginning-of-line 1) (point)))))
+	;; add interval to new-body (removing noweb reference)
+	(goto-char (match-beginning 0))
+	(funcall nb-add (buffer-substring index (point)))
+	(goto-char (match-end 0))
+	(setq index (point))
+	(funcall nb-add
+		 (with-current-buffer parent-buffer
+		   (save-restriction
+		     (widen)
+		     (mapconcat ;; interpose PREFIX between every line
+		      #'identity
+		      (split-string
+		       (if evaluate
+			   (let ((raw (org-babel-ref-resolve source-name)))
+			     (if (stringp raw) raw (format "%S" raw)))
+			 (or
+			  ;; retrieve from the library of babel
+			  (nth 2 (assoc (intern source-name)
+					org-babel-library-of-babel))
+			  ;; return the contents of headlines literally
+			  (save-excursion
+			    (when (org-babel-ref-goto-headline-id source-name)
+			      (org-babel-ref-headline-body)))
+			  ;; find the expansion of reference in this buffer
+			  (let ((rx (concat rx-prefix source-name "[ \t\n]"))
+				expansion)
+			    (save-excursion
+			      (goto-char (point-min))
+			      (if org-babel-use-quick-and-dirty-noweb-expansion
+				  (while (re-search-forward rx nil t)
+				    (let* ((i (org-babel-get-src-block-info 'light))
+					   (body (org-babel-expand-noweb-references i))
+					   (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						    "\n"))
+					   (full (if comment
+						     ((lambda (cs)
+							(concat (funcall c-wrap (car cs)) "\n"
+								body "\n"
+								(funcall c-wrap (cadr cs))))
+						      (org-babel-tangle-comment-links i))
+						   body)))
+				      (setq expansion (cons sep (cons full expansion)))))
+				(org-babel-map-src-blocks nil
+				  (let ((i (org-babel-get-src-block-info 'light)))
+				    (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
+						     (nth 4 i))
+						 source-name)
+				      (let* ((body (org-babel-expand-noweb-references i))
+					     (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
+						      "\n"))
+					     (full (if comment
+						       ((lambda (cs)
+							  (concat (funcall c-wrap (car cs)) "\n"
+								  body "\n"
+								  (funcall c-wrap (cadr cs))))
+							(org-babel-tangle-comment-links i))
+						     body)))
+					(setq expansion
+					      (cons sep (cons full expansion)))))))))
+			    (and expansion
+				 (mapconcat #'identity (nreverse (cdr expansion)) "")))
+			  ;; possibly raise an error if named block doesn't exist
+			  (if (member lang org-babel-noweb-error-langs)
+			      (error "%s" (concat
+					   (org-babel-noweb-wrap source-name)
+					   "could not be resolved (see "
+					   "`org-babel-noweb-error-langs')"))
+			    "")))
+		       "[\n\r]") (concat "\n" prefix))))))
+      (funcall nb-add (buffer-substring index (point-max))))
+    new-body))
+
+(defun org-babel-script-escape (str &optional force)
+  "Safely convert tables into elisp lists."
+  (let (in-single in-double out)
+    ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
+     (if (or force
+	     (and (stringp str)
+		  (> (length str) 2)
+		  (or (and (string-equal "[" (substring str 0 1))
+			   (string-equal "]" (substring str -1)))
+		      (and (string-equal "{" (substring str 0 1))
+			   (string-equal "}" (substring str -1)))
+		      (and (string-equal "(" (substring str 0 1))
+			   (string-equal ")" (substring str -1))))))
+	 (org-babel-read
+	  (concat
+	   "'"
+	   (progn
+	     (mapc
+	      (lambda (ch)
+		(setq
+		 out
+		 (case ch
+		   (91 (if (or in-double in-single) ; [
+			   (cons 91 out)
+			 (cons 40 out)))
+		   (93 (if (or in-double in-single) ; ]
+			   (cons 93 out)
+			 (cons 41 out)))
+		   (123 (if (or in-double in-single) ; {
+			    (cons 123 out)
+			  (cons 40 out)))
+		   (125 (if (or in-double in-single) ; }
+			    (cons 125 out)
+			  (cons 41 out)))
+		   (44 (if (or in-double in-single) ; ,
+			   (cons 44 out) (cons 32 out)))
+		   (39 (if in-double	; '
+			   (cons 39 out)
+			 (setq in-single (not in-single)) (cons 34 out)))
+		   (34 (if in-single	; "
+			   (append (list 34 32) out)
+			 (setq in-double (not in-double)) (cons 34 out)))
+		   (t  (cons ch out)))))
+	      (string-to-list str))
+	     (apply #'string (reverse out)))))
+       str))))
+
+(defun org-babel-read (cell &optional inhibit-lisp-eval)
+  "Convert the string value of CELL to a number if appropriate.
+Otherwise if cell looks like lisp (meaning it starts with a
+\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
+return it unmodified as a string.  Optional argument NO-LISP-EVAL
+inhibits lisp evaluation for situations in which is it not
+appropriate."
+  (if (and (stringp cell) (not (equal cell "")))
+      (or (org-babel-number-p cell)
+          (if (and (not inhibit-lisp-eval)
+		   (member (substring cell 0 1) '("(" "'" "`" "[")))
+              (eval (read cell))
+            (if (string= (substring cell 0 1) "\"")
+		(read cell)
+	      (progn (set-text-properties 0 (length cell) nil cell) cell))))
+    cell))
+
+(defun org-babel-number-p (string)
+  "If STRING represents a number return its value."
+  (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
+           (= (length (substring string (match-beginning 0)
+				 (match-end 0)))
+	      (length string)))
+      (string-to-number string)))
+
+(defun org-babel-import-elisp-from-file (file-name &optional separator)
+  "Read the results located at FILE-NAME into an elisp table.
+If the table is trivial, then return it as a scalar."
+  (let (result)
+    (save-window-excursion
+      (with-temp-buffer
+	(condition-case err
+	    (progn
+	      (org-table-import file-name separator)
+	      (delete-file file-name)
+	      (setq result (mapcar (lambda (row)
+				     (mapcar #'org-babel-string-read row))
+				   (org-table-to-lisp))))
+	  (error (message "Error reading results: %s" err) nil)))
+      (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
+	  (if (consp (car result))
+	      (if (null (cdr (car result)))
+		  (caar result)
+		result)
+	    (car result))
+	result))))
+
+(defun org-babel-string-read (cell)
+  "Strip nested \"s from around strings."
+  (org-babel-read (or (and (stringp cell)
+                           (string-match "\\\"\\(.+\\)\\\"" cell)
+                           (match-string 1 cell))
+                      cell) t))
+
+(defun org-babel-reverse-string (string)
+  "Return the reverse of STRING."
+  (apply 'string (reverse (string-to-list string))))
+
+(defun org-babel-chomp (string &optional regexp)
+  "Strip trailing spaces and carriage returns from STRING.
+Default regexp used is \"[ \f\t\n\r\v]\" but can be
+overwritten by specifying a regexp as a second argument."
+  (let ((regexp (or regexp "[ \f\t\n\r\v]")))
+    (while (and (> (length string) 0)
+                (string-match regexp (substring string -1)))
+      (setq string (substring string 0 -1)))
+    string))
+
+(defun org-babel-trim (string &optional regexp)
+  "Strip leading and trailing spaces and carriage returns from STRING.
+Like `org-babel-chomp' only it runs on both the front and back
+of the string."
+  (org-babel-chomp (org-babel-reverse-string
+                    (org-babel-chomp (org-babel-reverse-string string) regexp))
+                   regexp))
+
+(defvar org-babel-org-babel-call-process-region-original nil)
+(defun org-babel-tramp-handle-call-process-region
+  (start end program &optional delete buffer display &rest args)
+  "Use Tramp to handle `call-process-region'.
+Fixes a bug in `tramp-handle-call-process-region'."
+  (if (and (featurep 'tramp) (file-remote-p default-directory))
+      (let ((tmpfile (tramp-compat-make-temp-file "")))
+	(write-region start end tmpfile)
+	(when delete (delete-region start end))
+	(unwind-protect
+	    ;;	(apply 'call-process program tmpfile buffer display args)
+            ;; bug in tramp
+	    (apply 'process-file program tmpfile buffer display args)
+	  (delete-file tmpfile)))
+    ;; org-babel-call-process-region-original is the original emacs
+    ;; definition.  It is in scope from the let binding in
+    ;; org-babel-execute-src-block
+    (apply org-babel-call-process-region-original
+           start end program delete buffer display args)))
+
+(defun org-babel-local-file-name (file)
+  "Return the local name component of FILE."
+  (if (file-remote-p file)
+      (let (localname)
+	(with-parsed-tramp-file-name file nil
+				     localname))
+    file))
+
+(defun org-babel-process-file-name (name &optional no-quote-p)
+  "Prepare NAME to be used in an external process.
+If NAME specifies a remote location, the remote portion of the
+name is removed, since in that case the process will be executing
+remotely.  The file name is then processed by `expand-file-name'.
+Unless second argument NO-QUOTE-P is non-nil, the file name is
+additionally processed by `shell-quote-argument'"
+  ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
+   (expand-file-name (org-babel-local-file-name name))))
+
+(defvar org-babel-temporary-directory)
+(unless (or noninteractive (boundp 'org-babel-temporary-directory))
+  (defvar org-babel-temporary-directory
+    (or (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory)
+	     org-babel-temporary-directory)
+	(make-temp-file "babel-" t))
+    "Directory to hold temporary files created to execute code blocks.
+Used by `org-babel-temp-file'.  This directory will be removed on
+Emacs shutdown."))
+
+(defmacro org-babel-result-cond (result-params scalar-form &rest table-forms)
+  "Call the code to parse raw string results according to RESULT-PARAMS."
+  (declare (indent 1))
+  `(unless (member "none" ,result-params)
+     (if (or (member "scalar" ,result-params)
+	     (member "verbatim" ,result-params)
+	     (member "html" ,result-params)
+	     (member "code" ,result-params)
+	     (member "pp" ,result-params)
+	     (and (member "output" ,result-params)
+		  (not (member "table" ,result-params))))
+	 ,scalar-form
+       ,@table-forms)))
+
+(defun org-babel-temp-file (prefix &optional suffix)
+  "Create a temporary file in the `org-babel-temporary-directory'.
+Passes PREFIX and SUFFIX directly to `make-temp-file' with the
+value of `temporary-file-directory' temporarily set to the value
+of `org-babel-temporary-directory'."
+  (if (file-remote-p default-directory)
+      (make-temp-file
+       (concat (file-remote-p default-directory)
+	       (expand-file-name
+		prefix temporary-file-directory)
+	       nil suffix))
+    (let ((temporary-file-directory
+	   (or (and (boundp 'org-babel-temporary-directory)
+		    (file-exists-p org-babel-temporary-directory)
+		    org-babel-temporary-directory)
+	       temporary-file-directory)))
+      (make-temp-file prefix nil suffix))))
+
+(defun org-babel-remove-temporary-directory ()
+  "Remove `org-babel-temporary-directory' on Emacs shutdown."
+  (when (and (boundp 'org-babel-temporary-directory)
+	     (file-exists-p org-babel-temporary-directory))
+    ;; taken from `delete-directory' in files.el
+    (condition-case nil
+	(progn
+	  (mapc (lambda (file)
+		  ;; This test is equivalent to
+		  ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
+		  ;; but more efficient
+		  (if (eq t (car (file-attributes file)))
+		      (delete-directory file)
+		    (delete-file file)))
+		;; We do not want to delete "." and "..".
+		(directory-files org-babel-temporary-directory 'full
+				 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
+	  (delete-directory org-babel-temporary-directory))
+      (error
+       (message "Failed to remove temporary Org-babel directory %s"
+		(if (boundp 'org-babel-temporary-directory)
+		    org-babel-temporary-directory
+		  "[directory not defined]"))))))
+
+(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
+
+;;; ob-lob
+
+(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
+
+(defvar org-babel-library-of-babel nil
+  "Library of source-code blocks.
+This is an association list.  Populate the library by adding
+files to `org-babel-lob-files'.")
+
+(defcustom org-babel-lob-files '()
+  "Files used to populate the `org-babel-library-of-babel'.
+To add files to this list use the `org-babel-lob-ingest' command."
+  :group 'org-babel
+  :version "24.1"
+  :type 'list)
+
+(defvar org-babel-default-lob-header-args '((:exports . "results"))
+  "Default header arguments to use when exporting #+lob/call lines.")
+
+(defun org-babel-lob-ingest (&optional file)
+  "Add all named source-blocks defined in FILE to
+`org-babel-library-of-babel'."
+  (interactive "fFile: ")
+  (let ((lob-ingest-count 0))
+    (org-babel-map-src-blocks file
+      (let* ((info (org-babel-get-src-block-info 'light))
+	     (source-name (nth 4 info)))
+	(when source-name
+	  (setq source-name (intern source-name)
+		org-babel-library-of-babel
+		(cons (cons source-name info)
+		      (assq-delete-all source-name org-babel-library-of-babel))
+		lob-ingest-count (1+ lob-ingest-count)))))
+    (message "%d src block%s added to Library of Babel"
+	     lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
+    lob-ingest-count))
+
+(defconst org-babel-block-lob-one-liner-regexp
+  (concat
+   "^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
+  "Regexp to match non-inline calls to predefined source block functions.")
+
+(defconst org-babel-inline-lob-one-liner-regexp
+  (concat
+   "\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
+   "\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
+  "Regexp to match inline calls to predefined source block functions.")
+
+(defconst org-babel-lob-one-liner-regexp
+  (concat "\\(" org-babel-block-lob-one-liner-regexp
+	  "\\|" org-babel-inline-lob-one-liner-regexp "\\)")
+  "Regexp to match calls to predefined source block functions.")
+
+;; functions for executing lob one-liners
+
+;;;###autoload
+(defun org-babel-lob-execute-maybe ()
+  "Execute a Library of Babel source block, if appropriate.
+Detect if this is context for a Library Of Babel source block and
+if so then run the appropriate source block from the Library."
+  (interactive)
+  (let ((info (org-babel-lob-get-info)))
+    (if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
+	(progn (org-babel-lob-execute info) t)
+      nil)))
+
+;;;###autoload
+(defun org-babel-lob-get-info ()
+  "Return a Library of Babel function call as a string."
+  (let ((case-fold-search t)
+	(nonempty (lambda (a b)
+		    (let ((it (match-string a)))
+		      (if (= (length it) 0) (match-string b) it)))))
+    (save-excursion
+      (beginning-of-line 1)
+      (when (looking-at org-babel-lob-one-liner-regexp)
+	(append
+	 (mapcar #'org-no-properties
+		 (list
+		  (format "%s%s(%s)%s"
+			  (funcall nonempty 3 12)
+			  (if (not (= 0 (length (funcall nonempty 5 14))))
+			      (concat "[" (funcall nonempty 5 14) "]") "")
+			  (or (funcall nonempty 7 16) "")
+			  (or (funcall nonempty 8 19) ""))
+		  (funcall nonempty 9 18)))
+	 (list (length (if (= (length (match-string 12)) 0)
+			   (match-string 2) (match-string 11)))))))))
+
+(defun org-babel-lob-execute (info)
+  "Execute the lob call specified by INFO."
+  (let* ((mkinfo (lambda (p) (list "emacs-lisp" "results" p nil nil (nth 2 info))))
+	 (pre-params (org-babel-merge-params
+		      org-babel-default-header-args
+		      (org-babel-params-from-properties)
+		      (org-babel-parse-header-arguments
+		       (org-no-properties
+			(concat ":var results="
+				(mapconcat #'identity (butlast info) " "))))))
+	 (pre-info (funcall mkinfo pre-params))
+	 (cache? (and (cdr (assoc :cache pre-params))
+		      (string= "yes" (cdr (assoc :cache pre-params)))))
+	 (new-hash (when cache? (org-babel-sha1-hash pre-info)))
+	 (old-hash (when cache? (org-babel-current-result-hash))))
+    (if (and cache? (equal new-hash old-hash))
+	(save-excursion (goto-char (org-babel-where-is-src-block-result))
+			(forward-line 1)
+			(message "%S" (org-babel-read-result)))
+      (prog1 (org-babel-execute-src-block
+	      nil (funcall mkinfo (org-babel-process-params pre-params)))
+	;; update the hash
+	(when new-hash (org-babel-set-current-result-hash new-hash))))))
+
+(declare-function org-link-escape "org" (text &optional table))
+(declare-function org-heading-components "org" ())
+(declare-function org-back-to-heading "org" (invisible-ok))
+(declare-function org-fill-template "org" (template alist))
+(declare-function org-babel-update-block-body "org" (new-body))
+(declare-function make-directory "files" (dir &optional parents))
+
+(defcustom org-babel-tangle-lang-exts
+  '(("emacs-lisp" . "el"))
+  "Alist mapping languages to their file extensions.
+The key is the language name, the value is the string that should
+be inserted as the extension commonly used to identify files
+written in this language.  If no entry is found in this list,
+then the name of the language is used."
+  :group 'org-babel-tangle
+  :version "24.1"
+  :type '(repeat
+	  (cons
+	   (string "Language name")
+	   (string "File Extension"))))
+
+(defcustom org-babel-post-tangle-hook nil
+  "Hook run in code files tangled by `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-pre-tangle-hook '(save-buffer)
+  "Hook run at the beginning of `org-babel-tangle'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-body-hook nil
+  "Hook run over the contents of each code block body."
+  :group 'org-babel
+  :version "24.1"
+  :type 'hook)
+
+(defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-tangle-comment-format-end "%source-name ends here"
+  "Format of inserted comments in tangled code files.
+The following format strings can be used to insert special
+information into the output using `org-fill-template'.
+%start-line --- the line number at the start of the code block
+%file --------- the file from which the code block was tangled
+%link --------- Org-mode style link to the code block
+%source-name -- name of the code block
+
+Whether or not comments are inserted during tangling is
+controlled by the :comments header argument."
+  :group 'org-babel
+  :version "24.1"
+  :type 'string)
+
+(defcustom org-babel-process-comment-text #'org-babel-trim
+  "Function called to process raw Org-mode text collected to be
+inserted as comments in tangled source-code files.  The function
+should take a single string argument and return a string
+result.  The default value is `org-babel-trim'."
+  :group 'org-babel
+  :version "24.1"
+  :type 'function)
+
+(defun org-babel-find-file-noselect-refresh (file)
+  "Find file ensuring that the latest changes on disk are
+represented in the file."
+  (find-file-noselect file)
+  (with-current-buffer (get-file-buffer file)
+    (revert-buffer t t t)))
+
+(defmacro org-babel-with-temp-filebuffer (file &rest body)
+  "Open FILE into a temporary buffer execute BODY there like
+`progn', then kill the FILE buffer returning the result of
+evaluating BODY."
+  (declare (indent 1))
+  (let ((temp-path (make-symbol "temp-path"))
+	(temp-result (make-symbol "temp-result"))
+	(temp-file (make-symbol "temp-file"))
+	(visited-p (make-symbol "visited-p")))
+    `(let* ((,temp-path ,file)
+	    (,visited-p (get-file-buffer ,temp-path))
+	    ,temp-result ,temp-file)
+       (org-babel-find-file-noselect-refresh ,temp-path)
+       (setf ,temp-file (get-file-buffer ,temp-path))
+       (with-current-buffer ,temp-file
+	 (setf ,temp-result (progn ,@body)))
+       (unless ,visited-p (kill-buffer ,temp-file))
+       ,temp-result)))
+(def-edebug-spec org-babel-with-temp-filebuffer (form body))
+
+;;;###autoload
+(defun org-babel-load-file (file &optional compile)
+  "Load Emacs Lisp source code blocks in the Org-mode FILE.
+This function exports the source code using `org-babel-tangle'
+and then loads the resulting file using `load-file'.  With prefix
+arg (noninteractively: 2nd arg) COMPILE the tangled Emacs Lisp
+file to byte-code before it is loaded."
+  (interactive "fFile to load: \nP")
+  (let* ((age (lambda (file)
+		(float-time
+		 (time-subtract (current-time)
+				(nth 5 (or (file-attributes (file-truename file))
+					   (file-attributes file)))))))
+	 (base-name (file-name-sans-extension file))
+	 (exported-file (concat base-name ".el")))
+    ;; tangle if the org-mode file is newer than the elisp file
+    (unless (and (file-exists-p exported-file)
+		 (> (funcall age file) (funcall age exported-file)))
+      (org-babel-tangle-file file exported-file "emacs-lisp"))
+    (message "%s %s"
+	     (if compile
+		 (progn (byte-compile-file exported-file 'load)
+			"Compiled and loaded")
+	       (progn (load-file exported-file) "Loaded"))
+	     exported-file)))
+
+;;;###autoload
+(defun org-babel-tangle-file (file &optional target-file lang)
+  "Extract the bodies of source code blocks in FILE.
+Source code blocks are extracted with `org-babel-tangle'.
+Optional argument TARGET-FILE can be used to specify a default
+export file for all source blocks.  Optional argument LANG can be
+used to limit the exported source code blocks by language."
+  (interactive "fFile to tangle: \nP")
+  (let ((visited-p (get-file-buffer (expand-file-name file)))
+	to-be-removed)
+    (save-window-excursion
+      (find-file file)
+      (setq to-be-removed (current-buffer))
+      (org-babel-tangle nil target-file lang))
+    (unless visited-p
+      (kill-buffer to-be-removed))))
+
+(defun org-babel-tangle-publish (_ filename pub-dir)
+  "Tangle FILENAME and place the results in PUB-DIR."
+  (mapc (lambda (el) (copy-file el pub-dir t)) (org-babel-tangle-file filename)))
+
+;;;###autoload
+(defun org-babel-tangle (&optional only-this-block target-file lang)
+  "Write code blocks to source-specific files.
+Extract the bodies of all source code blocks from the current
+file into their own source-specific files.  Optional argument
+TARGET-FILE can be used to specify a default export file for all
+source blocks.  Optional argument LANG can be used to limit the
+exported source code blocks by language."
+  (interactive "P")
+  (run-hooks 'org-babel-pre-tangle-hook)
+  ;; possibly restrict the buffer to the current code block
+  (save-restriction
+    (when only-this-block
+      (unless (org-babel-where-is-src-block-head)
+	(error "Point is not currently inside of a code block"))
+      (save-match-data
+	(unless (or (cdr (assoc :tangle (nth 2 (org-babel-get-src-block-info))))
+		    target-file)
+	  (setq target-file
+		(read-from-minibuffer "Tangle to: " (buffer-file-name)))))
+      (narrow-to-region (match-beginning 0) (match-end 0)))
+    (save-excursion
+      (let ((block-counter 0)
+	    (org-babel-default-header-args
+	     (if target-file
+		 (org-babel-merge-params org-babel-default-header-args
+					 (list (cons :tangle target-file)))
+	       org-babel-default-header-args))
+	    path-collector)
+	(mapc ;; map over all languages
+	 (lambda (by-lang)
+	   (let* ((lang (car by-lang))
+		  (specs (cdr by-lang))
+		  (ext (or (cdr (assoc lang org-babel-tangle-lang-exts)) lang))
+		  (lang-f (intern
+			   (concat
+			    (or (and (cdr (assoc lang org-src-lang-modes))
+				     (symbol-name
+				      (cdr (assoc lang org-src-lang-modes))))
+				lang)
+			    "-mode")))
+		  she-banged)
+	     (mapc
+	      (lambda (spec)
+		(let ((get-spec (lambda (name) (cdr (assoc name (nth 4 spec))))))
+		  (let* ((tangle (funcall get-spec :tangle))
+			 (she-bang ((lambda (sheb) (when (> (length sheb) 0) sheb))
+				    (funcall get-spec :shebang)))
+			 (base-name (cond
+				     ((string= "yes" tangle)
+				      (file-name-sans-extension
+				       (buffer-file-name)))
+				     ((string= "no" tangle) nil)
+				     ((> (length tangle) 0) tangle)))
+			 (file-name (when base-name
+				      ;; decide if we want to add ext to base-name
+				      (if (and ext (string= "yes" tangle))
+					  (concat base-name "." ext) base-name))))
+		    (when file-name
+		      ;; possibly create the parent directories for file
+		      (when ((lambda (m) (and m (not (string= m "no"))))
+			     (funcall get-spec :mkdirp))
+			(make-directory (file-name-directory file-name) 'parents))
+		      ;; delete any old versions of file
+		      (when (and (file-exists-p file-name)
+				 (not (member file-name path-collector)))
+			(delete-file file-name))
+		      ;; drop source-block to file
+		      (with-temp-buffer
+			(when (fboundp lang-f) (ignore-errors (funcall lang-f)))
+			(when (and she-bang (not (member file-name she-banged)))
+			  (insert (concat she-bang "\n"))
+			  (setq she-banged (cons file-name she-banged)))
+			(org-babel-spec-to-string spec)
+			;; We avoid append-to-file as it does not work with tramp.
+			(let ((content (buffer-string)))
+			  (with-temp-buffer
+			    (if (file-exists-p file-name)
+				(insert-file-contents file-name))
+			    (goto-char (point-max))
+			    (insert content)
+			    (write-region nil nil file-name))))
+		      (set-file-modes
+		       file-name
+		       ;; never writable (don't accidentally edit tangled files)
+		       (if she-bang
+			   #o555 ;; files with she-bangs should be executable
+			 #o444)) ;; those without should not
+		      ;; update counter
+		      (setq block-counter (+ 1 block-counter))
+		      (add-to-list 'path-collector file-name)))))
+	      specs)))
+	 (org-babel-tangle-collect-blocks lang))
+	(message "Tangled %d code block%s from %s" block-counter
+		 (if (= block-counter 1) "" "s")
+		 (file-name-nondirectory
+		  (buffer-file-name (or (buffer-base-buffer) (current-buffer)))))
+	;; run `org-babel-post-tangle-hook' in all tangled files
+	(when org-babel-post-tangle-hook
+	  (mapc
+	   (lambda (file)
+	     (org-babel-with-temp-filebuffer file
+	       (run-hooks 'org-babel-post-tangle-hook)))
+	   path-collector))
+	path-collector))))
+
+(defun org-babel-tangle-clean ()
+  "Remove comments inserted by `org-babel-tangle'.
+Call this function inside of a source-code file generated by
+`org-babel-tangle' to remove all comments inserted automatically
+by `org-babel-tangle'.  Warning, this comment removes any lines
+containing constructs which resemble org-mode file links or noweb
+references."
+  (interactive)
+  (goto-char (point-min))
+  (while (or (re-search-forward "\\[\\[file:.*\\]\\[.*\\]\\]" nil t)
+             (re-search-forward (org-babel-noweb-wrap) nil t))
+    (delete-region (save-excursion (beginning-of-line 1) (point))
+                   (save-excursion (end-of-line 1) (forward-char 1) (point)))))
+
+(defvar org-stored-links)
+(defvar org-bracket-link-regexp)
+(defun org-babel-spec-to-string (spec)
+  "Insert SPEC into the current file.
+Insert the source-code specified by SPEC into the current
+source code file.  This function uses `comment-region' which
+assumes that the appropriate major-mode is set.  SPEC has the
+form
+
+  (start-line file link source-name params body comment)"
+  (let* ((start-line (nth 0 spec))
+	 (file (nth 1 spec))
+	 (link (nth 2 spec))
+	 (source-name (nth 3 spec))
+	 (body (nth 5 spec))
+	 (comment (nth 6 spec))
+	 (comments (cdr (assoc :comments (nth 4 spec))))
+	 (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec))))))
+	 (link-p (or (string= comments "both") (string= comments "link")
+		     (string= comments "yes") (string= comments "noweb")))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name)))
+	 (insert-comment (lambda (text)
+			   (when (and comments (not (string= comments "no"))
+				      (> (length text) 0))
+			     (when padline (insert "\n"))
+			     (comment-region (point) (progn (insert text) (point)))
+			     (end-of-line nil) (insert "\n")))))
+    (when comment (funcall insert-comment comment))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-beg link-data)))
+    (when padline (insert "\n"))
+    (insert
+     (format
+      "%s\n"
+      (replace-regexp-in-string
+       "^," ""
+       (org-babel-trim body (if org-src-preserve-indentation "[\f\n\r\v]")))))
+    (when link-p
+      (funcall
+       insert-comment
+       (org-fill-template org-babel-tangle-comment-format-end link-data)))))
+
+(defun org-babel-tangle-collect-blocks (&optional language)
+  "Collect source blocks in the current Org-mode file.
+Return an association list of source-code block specifications of
+the form used by `org-babel-spec-to-string' grouped by language.
+Optional argument LANG can be used to limit the collected source
+code blocks by language."
+  (let ((block-counter 1) (current-heading "") blocks)
+    (org-babel-map-src-blocks (buffer-file-name)
+      ((lambda (new-heading)
+	 (if (not (string= new-heading current-heading))
+	     (progn
+	       (setq block-counter 1)
+	       (setq current-heading new-heading))
+	   (setq block-counter (+ 1 block-counter))))
+       (replace-regexp-in-string "[ \t]" "-"
+				 (condition-case nil
+				     (or (nth 4 (org-heading-components))
+					 "(dummy for heading without text)")
+				   (error (buffer-file-name)))))
+      (let* ((start-line (save-restriction (widen)
+					   (+ 1 (line-number-at-pos (point)))))
+	     (file (buffer-file-name))
+	     (info (org-babel-get-src-block-info 'light))
+	     (src-lang (nth 0 info)))
+        (unless (string= (cdr (assoc :tangle (nth 2 info))) "no")
+          (unless (and language (not (string= language src-lang)))
+	    (let* ((info (org-babel-get-src-block-info))
+		   (params (nth 2 info))
+		   (link ((lambda (link)
+			    (and (string-match org-bracket-link-regexp link)
+				 (match-string 1 link)))
+			  (org-no-properties
+			   (org-store-link nil))))
+		   (source-name
+		    (intern (or (nth 4 info)
+				(format "%s:%d"
+					current-heading block-counter))))
+		   (expand-cmd
+		    (intern (concat "org-babel-expand-body:" src-lang)))
+		   (assignments-cmd
+		    (intern (concat "org-babel-variable-assignments:" src-lang)))
+		   (body
+		    ((lambda (body) ;; run the tangle-body-hook
+		       (with-temp-buffer
+			 (insert body)
+			 (run-hooks 'org-babel-tangle-body-hook)
+			 (buffer-string)))
+		     ((lambda (body) ;; expand the body in language specific manner
+			(if (assoc :no-expand params)
+			    body
+			  (if (fboundp expand-cmd)
+			      (funcall expand-cmd body params)
+			    (org-babel-expand-body:generic
+			     body params
+			     (and (fboundp assignments-cmd)
+				  (funcall assignments-cmd params))))))
+		      (if (org-babel-noweb-p params :tangle)
+			  (org-babel-expand-noweb-references info)
+			(nth 1 info)))))
+		   (comment
+		    (when (or (string= "both" (cdr (assoc :comments params)))
+			      (string= "org" (cdr (assoc :comments params))))
+		      ;; from the previous heading or code-block end
+		      (funcall
+		       org-babel-process-comment-text
+		       (buffer-substring
+			(max (condition-case nil
+				 (save-excursion
+				   (org-back-to-heading t)  ; sets match data
+				   (match-end 0))
+			       (error (point-min)))
+			     (save-excursion
+			       (if (re-search-backward
+				    org-babel-src-block-regexp nil t)
+				   (match-end 0)
+				 (point-min))))
+			(point)))))
+		   by-lang)
+	      ;; add the spec for this block to blocks under it's language
+	      (setq by-lang (cdr (assoc src-lang blocks)))
+	      (setq blocks (delq (assoc src-lang blocks) blocks))
+	      (setq blocks (cons
+			    (cons src-lang
+				  (cons (list start-line file link
+					      source-name params body comment)
+					by-lang)) blocks)))))))
+    ;; ensure blocks in the correct order
+    (setq blocks
+          (mapcar
+	   (lambda (by-lang) (cons (car by-lang) (reverse (cdr by-lang))))
+	   blocks))
+    blocks))
+
+(defun org-babel-tangle-comment-links ( &optional info)
+  "Return a list of begin and end link comments for the code block at point."
+  (let* ((start-line (org-babel-where-is-src-block-head))
+	 (file (buffer-file-name))
+	 (link (org-link-escape (progn (call-interactively 'org-store-link)
+				       (org-no-properties
+					(car (pop org-stored-links))))))
+	 (source-name (nth 4 (or info (org-babel-get-src-block-info 'light))))
+	 (link-data (mapcar (lambda (el)
+			      (cons (symbol-name el)
+				    ((lambda (le)
+				       (if (stringp le) le (format "%S" le)))
+				     (eval el))))
+			    '(start-line file link source-name))))
+    (list (org-fill-template org-babel-tangle-comment-format-beg link-data)
+	  (org-fill-template org-babel-tangle-comment-format-end link-data))))
+
+;; de-tangling functions
+(defvar org-bracket-link-analytic-regexp)
+(defun org-babel-detangle (&optional source-code-file)
+  "Propagate changes in source file back original to Org-mode file.
+This requires that code blocks were tangled with link comments
+which enable the original code blocks to be found."
+  (interactive)
+  (save-excursion
+    (when source-code-file (find-file source-code-file))
+    (goto-char (point-min))
+    (let ((counter 0) new-body end)
+      (while (re-search-forward org-bracket-link-analytic-regexp nil t)
+        (when (re-search-forward
+	       (concat " " (regexp-quote (match-string 5)) " ends here"))
+          (setq end (match-end 0))
+          (forward-line -1)
+          (save-excursion
+	    (when (setq new-body (org-babel-tangle-jump-to-org))
+	      (org-babel-update-block-body new-body)))
+          (setq counter (+ 1 counter)))
+        (goto-char end))
+      (prog1 counter (message "Detangled %d code blocks" counter)))))
+
+(defun org-babel-tangle-jump-to-org ()
+  "Jump from a tangled code file to the related Org-mode file."
+  (interactive)
+  (let ((mid (point))
+	start end done
+        target-buffer target-char link path block-name body)
+    (save-window-excursion
+      (save-excursion
+	(while (and (re-search-backward org-bracket-link-analytic-regexp nil t)
+		    (not ; ever wider searches until matching block comments
+		     (and (setq start (point-at-eol))
+			  (setq link (match-string 0))
+			  (setq path (match-string 3))
+			  (setq block-name (match-string 5))
+			  (save-excursion
+			    (save-match-data
+			      (re-search-forward
+			       (concat " " (regexp-quote block-name)
+				       " ends here") nil t)
+			      (setq end (point-at-bol))))))))
+	(unless (and start (< start mid) (< mid end))
+	  (error "Not in tangled code"))
+        (setq body (org-babel-trim (buffer-substring start end))))
+      (when (string-match "::" path)
+        (setq path (substring path 0 (match-beginning 0))))
+      (find-file path) (setq target-buffer (current-buffer))
+      (goto-char start) (org-open-link-from-string link)
+      (if (string-match "[^ \t\n\r]:\\([[:digit:]]+\\)" block-name)
+          (org-babel-next-src-block
+           (string-to-number (match-string 1 block-name)))
+        (org-babel-goto-named-src-block block-name))
+      (setq target-char (point)))
+    (pop-to-buffer target-buffer)
+    (prog1 body (goto-char target-char))))
+
+;;; ob-comint
+
+(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
+(declare-function tramp-flush-directory-property "tramp" (vec directory))
+
+(defun org-babel-comint-buffer-livep (buffer)
+  "Check if BUFFER is a comint buffer with a live process."
+  (let ((buffer (if buffer (get-buffer buffer))))
+    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
+
+(defmacro org-babel-comint-in-buffer (buffer &rest body)
+  "Check BUFFER and execute BODY.
+BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
+executed inside the protection of `save-excursion' and
+`save-match-data'."
+  (declare (indent 1))
+  `(save-excursion
+     (save-match-data
+       (unless (org-babel-comint-buffer-livep ,buffer)
+         (error "Buffer %s does not exist or has no process" ,buffer))
+       (set-buffer ,buffer)
+       ,@body)))
+(def-edebug-spec org-babel-comint-in-buffer (form body))
+
+(defmacro org-babel-comint-with-output (meta &rest body)
+  "Evaluate BODY in BUFFER and return process output.
+Will wait until EOE-INDICATOR appears in the output, then return
+all process output.  If REMOVE-ECHO and FULL-BODY are present and
+non-nil, then strip echo'd body from the returned output.  META
+should be a list containing the following where the last two
+elements are optional.
+
+ (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
+
+This macro ensures that the filter is removed in case of an error
+or user `keyboard-quit' during execution of body."
+  (declare (indent 1))
+  (let ((buffer (car meta))
+	(eoe-indicator (cadr meta))
+	(remove-echo (cadr (cdr meta)))
+	(full-body (cadr (cdr (cdr meta)))))
+    `(org-babel-comint-in-buffer ,buffer
+       (let ((string-buffer "") dangling-text raw)
+	 ;; setup filter
+	 (setq comint-output-filter-functions
+	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
+		     comint-output-filter-functions))
+	 (unwind-protect
+	     (progn
+	       ;; got located, and save dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (let ((start (point))
+		     (end (point-max)))
+		 (setq dangling-text (buffer-substring start end))
+		 (delete-region start end))
+	       ;; pass FULL-BODY to process
+	       ,@body
+	       ;; wait for end-of-evaluation indicator
+	       (while (progn
+			(goto-char comint-last-input-end)
+			(not (save-excursion
+			       (and (re-search-forward
+				     (regexp-quote ,eoe-indicator) nil t)
+				    (re-search-forward
+				     comint-prompt-regexp nil t)))))
+		 (accept-process-output (get-buffer-process (current-buffer)))
+		 ;; thought the following this would allow async
+		 ;; background running, but I was wrong...
+		 ;; (run-with-timer .5 .5 'accept-process-output
+		 ;; 		 (get-buffer-process (current-buffer)))
+		 )
+	       ;; replace cut dangling text
+	       (goto-char (process-mark (get-buffer-process (current-buffer))))
+	       (insert dangling-text))
+	   ;; remove filter
+	   (setq comint-output-filter-functions
+		 (cdr comint-output-filter-functions)))
+	 ;; remove echo'd FULL-BODY from input
+	 (if (and ,remove-echo ,full-body
+		  (string-match
+		   (replace-regexp-in-string
+		    "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
+		   string-buffer))
+	     (setq raw (substring string-buffer (match-end 0))))
+	 (split-string string-buffer comint-prompt-regexp)))))
+(def-edebug-spec org-babel-comint-with-output (form body))
+
+(defun org-babel-comint-input-command (buffer cmd)
+  "Pass CMD to BUFFER.
+The input will not be echoed."
+  (org-babel-comint-in-buffer buffer
+    (goto-char (process-mark (get-buffer-process buffer)))
+    (insert cmd)
+    (comint-send-input)
+    (org-babel-comint-wait-for-output buffer)))
+
+(defun org-babel-comint-wait-for-output (buffer)
+  "Wait until output arrives from BUFFER.
+Note: this is only safe when waiting for the result of a single
+statement (not large blocks of code)."
+  (org-babel-comint-in-buffer buffer
+    (while (progn
+             (goto-char comint-last-input-end)
+             (not (and (re-search-forward comint-prompt-regexp nil t)
+                       (goto-char (match-beginning 0))
+                       (string= (face-name (face-at-point))
+                                "comint-highlight-prompt"))))
+      (accept-process-output (get-buffer-process buffer)))))
+
+(defun org-babel-comint-eval-invisibly-and-wait-for-file
+  (buffer file string &optional period)
+  "Evaluate STRING in BUFFER invisibly.
+Don't return until FILE exists.  Code in STRING must ensure that
+FILE exists at end of evaluation."
+  (unless (org-babel-comint-buffer-livep buffer)
+    (error "Buffer %s does not exist or has no process" buffer))
+  (if (file-exists-p file) (delete-file file))
+  (process-send-string
+   (get-buffer-process buffer)
+   (if (string-match "\n$" string) string (concat string "\n")))
+  ;; From Tramp 2.1.19 the following cache flush is not necessary
+  (if (file-remote-p default-directory)
+      (let (v)
+	(with-parsed-tramp-file-name default-directory nil
+				     (tramp-flush-directory-property v ""))))
+  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
+
+;;; ob-ref
+
+(declare-function org-remove-if-not "org" (predicate seq))
+(declare-function org-at-table-p "org" (&optional table-type))
+(declare-function org-count "org" (CL-ITEM CL-SEQ))
+(declare-function org-at-item-p "org-list" ())
+(declare-function org-narrow-to-subtree "org" ())
+(declare-function org-id-find-id-in-file "org-id" (id file &optional markerp))
+(declare-function org-id-find-id-file "org-id" (id))
+(declare-function org-show-context "org" (&optional key))
+(declare-function org-pop-to-buffer-same-window
+		  "org-compat" (&optional buffer-or-name norecord label))
+
+(defvar org-babel-ref-split-regexp
+  "[ \f\t\n\r\v]*\\(.+?\\)[ \f\t\n\r\v]*=[ \f\t\n\r\v]*\\(.+\\)[ \f\t\n\r\v]*")
+
+(defvar org-babel-update-intermediate nil
+  "Update the in-buffer results of code blocks executed to resolve references.")
+
+(defun org-babel-ref-parse (assignment)
+  "Parse a variable ASSIGNMENT in a header argument.
+If the right hand side of the assignment has a literal value
+return that value, otherwise interpret as a reference to an
+external resource and find its value using
+`org-babel-ref-resolve'.  Return a list with two elements.  The
+first element of the list will be the name of the variable, and
+the second will be an emacs-lisp representation of the value of
+the variable."
+  (when (string-match org-babel-ref-split-regexp assignment)
+    (let ((var (match-string 1 assignment))
+	  (ref (match-string 2 assignment)))
+      (cons (intern var)
+	    (let ((out (org-babel-read ref)))
+	      (if (equal out ref)
+		  (if (string-match "^\".*\"$" ref)
+		      (read ref)
+		    (org-babel-ref-resolve ref))
+		out))))))
+
+(defun org-babel-ref-goto-headline-id (id)
+  (goto-char (point-min))
+  (let ((rx (regexp-quote id)))
+    (or (re-search-forward
+	 (concat "^[ \t]*:CUSTOM_ID:[ \t]+" rx "[ \t]*$") nil t)
+	(let* ((file (org-id-find-id-file id))
+	       (m (when file (org-id-find-id-in-file id file 'marker))))
+	  (when (and file m)
+	    (message "file:%S" file)
+	    (org-pop-to-buffer-same-window (marker-buffer m))
+	    (goto-char m)
+	    (move-marker m nil)
+	    (org-show-context)
+	    t)))))
+
+(defun org-babel-ref-headline-body ()
+  (save-restriction
+    (org-narrow-to-subtree)
+    (buffer-substring
+     (save-excursion (goto-char (point-min))
+		     (forward-line 1)
+		     (when (looking-at "[ \t]*:PROPERTIES:")
+		       (re-search-forward ":END:" nil)
+		       (forward-char))
+		     (point))
+     (point-max))))
+
+(defvar org-babel-library-of-babel)
+(defun org-babel-ref-resolve (ref)
+  "Resolve the reference REF and return its value."
+  (save-window-excursion
+    (save-excursion
+      (let ((case-fold-search t)
+	    type args new-refere new-header-args new-referent result
+	    lob-info split-file split-ref index index-row index-col id)
+	;; if ref is indexed grab the indices -- beware nested indices
+	(when (and (string-match "\\[\\([^\\[]+\\)\\]$" ref)
+		   (let ((str (substring ref 0 (match-beginning 0))))
+		     (= (org-count ?( str) (org-count ?) str))))
+	  (setq index (match-string 1 ref))
+	  (setq ref (substring ref 0 (match-beginning 0))))
+	;; assign any arguments to pass to source block
+	(when (string-match
+	       "^\\(.+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)\(\\(.*\\)\)$" ref)
+	  (setq new-refere      (match-string 1 ref))
+	  (setq new-header-args (match-string 3 ref))
+	  (setq new-referent    (match-string 5 ref))
+	  (when (> (length new-refere) 0)
+	    (when (> (length new-referent) 0)
+	      (setq args (mapcar (lambda (ref) (cons :var ref))
+				 (org-babel-ref-split-args new-referent))))
+	    (when (> (length new-header-args) 0)
+	      (setq args (append (org-babel-parse-header-arguments
+				  new-header-args) args)))
+	    (setq ref new-refere)))
+	(when (string-match "^\\(.+\\):\\(.+\\)$" ref)
+	  (setq split-file (match-string 1 ref))
+	  (setq split-ref (match-string 2 ref))
+	  (find-file split-file) (setq ref split-ref))
+	(save-restriction
+	  (widen)
+	  (goto-char (point-min))
+	  (if (let ((src-rx (org-babel-named-src-block-regexp-for-name ref))
+		    (res-rx (org-babel-named-data-regexp-for-name ref)))
+		;; goto ref in the current buffer
+		(or
+		 ;; check for code blocks
+		 (re-search-forward src-rx nil t)
+		 ;; check for named data
+		 (re-search-forward res-rx nil t)
+		 ;; check for local or global headlines by id
+		 (setq id (org-babel-ref-goto-headline-id ref))
+		 ;; check the Library of Babel
+		 (setq lob-info (cdr (assoc (intern ref)
+					    org-babel-library-of-babel)))))
+	      (unless (or lob-info id) (goto-char (match-beginning 0)))
+	    ;; ;; TODO: allow searching for names in other buffers
+	    ;; (setq id-loc (org-id-find ref 'marker)
+	    ;;       buffer (marker-buffer id-loc)
+	    ;;       loc (marker-position id-loc))
+	    ;; (move-marker id-loc nil)
+	    (error "Reference '%s' not found in this buffer" ref))
+	  (cond
+	   (lob-info (setq type 'lob))
+	   (id (setq type 'id))
+	   ((and (looking-at org-babel-src-name-regexp)
+		 (save-excursion
+		   (forward-line 1)
+		   (or (looking-at org-babel-src-block-regexp)
+		       (looking-at org-babel-multi-line-header-regexp))))
+	    (setq type 'source-block))
+	   (t (while (not (setq type (org-babel-ref-at-ref-p)))
+		(forward-line 1)
+		(beginning-of-line)
+		(if (or (= (point) (point-min)) (= (point) (point-max)))
+		    (error "Reference not found")))))
+	  (let ((params (append args '((:results . "silent")))))
+	    (setq result
+		  (case type
+		    (results-line (org-babel-read-result))
+		    (table        (org-babel-read-table))
+		    (list         (org-babel-read-list))
+		    (file         (org-babel-read-link))
+		    (source-block (org-babel-execute-src-block
+				   nil nil (if org-babel-update-intermediate
+					       nil params)))
+		    (lob          (org-babel-execute-src-block
+				   nil lob-info params))
+		    (id           (org-babel-ref-headline-body)))))
+	  (if (symbolp result)
+	      (format "%S" result)
+	    (if (and index (listp result))
+		(org-babel-ref-index-list index result)
+	      result)))))))
+
+(defun org-babel-ref-index-list (index lis)
+  "Return the subset of LIS indexed by INDEX.
+
+Indices are 0 based and negative indices count from the end of
+LIS, so 0 references the first element of LIS and -1 references
+the last.  If INDEX is separated by \",\"s then each \"portion\"
+is assumed to index into the next deepest nesting or dimension.
+
+A valid \"portion\" can consist of either an integer index, two
+integers separated by a \":\" in which case the entire range is
+returned, or an empty string or \"*\" both of which are
+interpreted to mean the entire range and as such are equivalent
+to \"0:-1\"."
+  (if (and (> (length index) 0) (string-match "^\\([^,]*\\),?" index))
+      (let* ((ind-re "\\(\\([-[:digit:]]+\\):\\([-[:digit:]]+\\)\\|\*\\)")
+	     (lgth (length lis))
+	     (portion (match-string 1 index))
+	     (remainder (substring index (match-end 0)))
+	     (wrap (lambda (num) (if (< num 0) (+ lgth num) num)))
+	     (open (lambda (ls) (if (and (listp ls) (= (length ls) 1)) (car ls) ls))))
+	(funcall
+	 open
+	 (mapcar
+	  (lambda (sub-lis)
+	    (if (listp sub-lis)
+		(org-babel-ref-index-list remainder sub-lis)
+	      sub-lis))
+	  (if (or (= 0 (length portion)) (string-match ind-re portion))
+	      (mapcar
+	       (lambda (n) (nth n lis))
+	       (apply 'org-number-sequence
+		      (if (and (> (length portion) 0) (match-string 2 portion))
+			  (list
+			   (funcall wrap (string-to-number (match-string 2 portion)))
+			   (funcall wrap (string-to-number (match-string 3 portion))))
+			(list (funcall wrap 0) (funcall wrap -1)))))
+	    (list (nth (funcall wrap (string-to-number portion)) lis))))))
+    lis))
+
+(defun org-babel-ref-split-args (arg-string)
+  "Split ARG-STRING into top-level arguments of balanced parenthesis."
+  (mapcar #'org-babel-trim (org-babel-balanced-split arg-string 44)))
+
+(defvar org-bracket-link-regexp)
+(defun org-babel-ref-at-ref-p ()
+  "Return the type of reference located at point.
+Return nil if none of the supported reference types are found.
+Supported reference types are tables and source blocks."
+  (cond ((org-at-table-p) 'table)
+	((org-at-item-p) 'list)
+        ((looking-at "^[ \t]*#\\+BEGIN_SRC") 'source-block)
+        ((looking-at org-bracket-link-regexp) 'file)
+        ((looking-at org-babel-result-regexp) 'results-line)))
 
 (provide 'ob)
 
-- 
1.8.0.1


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-- 
 Bastien

Re: babel perl issue

[Eric Schulte]

Bastien <bzg@altern.org> writes:

> Eric Schulte <schulte.eric@gmail.com> writes:
>
>> This patch is still broken
>
> (I don't know why ~$ git format-patch master did not produce an
> applicable patch.)
>
> These three ones are applicable against master/68d4de2.
>
> Bare in mind this is just meant as a proof it "works", we can
> rework the patches later on.

These applied and I now see what they are doing.  This is equivalent to
moving all of the core Babel libraries into a single massive ob.el.  I
explicitly like the separation of functional units of Babel into
separate files, and this sort of refactoring would make Babel harder to
maintain in the future.

What do you find so unappealing about the existence of ob-core.el to
justify such drastic proposals?

Perhaps it would be possible to take all of those functions which are
defined in ob-core *and* are required by other components of Babel, and
move them to an ob-util.el file.  Then we could move the remaining
public facing functions of Babel which are not used in any of it's
components (e.g., org-babel-execute-src-block) and move them into ob.el.

Would that feel cleaner to you?

Thanks,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

Re: babel perl issue

[Bastien]

Hi Eric,

Eric Schulte <schulte.eric@gmail.com> writes:

> Would that feel cleaner to you?

I "feel" so.  Please let me think more about it, and
thanks to be open to this possibility.  I'm confident
we can keep a good balance between conveniency (when
editing various ob* files) and maintainability (which
should be judged not only from the current maintainer
point of view but also /per se/.)

I'm busy all day tomorrow, I'll think about this back
on sunday.

Thanks!

-- 
 Bastien