Re: org-babel-tangle-lang-exts must be initialized? how to get syntax coloring?

["Eric Schulte" <schulte.eric@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1359 bytes --]

Hi Nicholas,

There are a couple of problems.  The first was a missing autoload in
org.el which I've now inserted (thanks for helping this issue come to
light).  The second has to do with your config.  I believe you are
loading an old version of Org-mode.  Be sure to that the first
instance of Org-mode on your load path is the newest version, you can
run M-x org-version to see what version you are currently running,
when I run that command the output starts with

  Org-mode version 6.36trans

If yours starts with the same then you should be fine.

I'm attaching a modified version of your init which worked for me
against the latest Org-mode from git.  A couple of differences worth
noting in my modified version are

- I'm putting the path to the org-mode git repository on my load path

- I removed the calls to font-lock mode which shouldn't be necessary
  with current versions of Emacs

- I fixed the call to `org-babel-do-load-languages' so that it's
  second argument is the org-babel-load-languages variable

- I'm not loading ruby (which I just did to simplify my test of a
  minimal Emacs config -- you should be able to replace it)

Please do a git pull on the Org-mode repo, re-run make clean && make,
and then give this new config file a try (with the org-mode load path
adjusted to your system) and let me know how it goes.

Best -- Eric


[-- Attachment #2: minimal.el --]
[-- Type: application/emacs-lisp, Size: 478 bytes --]

[-- Attachment #3: Type: text/plain, Size: 4464 bytes --]


Nicholas Putnam <nputnam@gmail.com> writes:

> re: org-export-htmlize , "Symbol's value as variable is void"
>
> Here's my .emacs file.  The line that sets org-babel-tangle-lang-exts is
> commented out.  Further down, is the debugging output when emacs is
> started.  Requiring ob-R doesn't generate an error, by either ob-ruby or
> ob-python will, unless org-babel-tangle-lang-exts is set.  The call to
> ob-ruby that generates the error, at the bottom of .emacs, is definitely
> coming after 'org-install.
>
> Thanks again,
>
> Nik
>
>
> (setq load-path
>        (append (list nil
> "/usr/local/share/emacs/site-lisp"
> "/Users/nputnam/elisp/ruby-mode"
>          )
> load-path))
>
> (require 'org-install)
>
> (add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
> (global-set-key "\C-cl" 'org-store-link)
> (global-set-key "\C-ca" 'org-agenda)
> (global-set-key "\C-cb" 'org-iswitchb)
>
> (global-font-lock-mode 1)                     ; for all buffers
> (add-hook 'org-mode-hook 'turn-on-font-lock)  ; Org buffers only
> (transient-mark-mode 1)
>
> ;(setq org-babel-tangle-lang-exts '("fortran" . "f"))
> ;(setq org-babel-tangle-lang-exts '())
>
> (setq org-babel-do-load-languages
>  '((R . t)
>          (ditaa . nil)
>          (dot . nil)
>          (emacs-lisp . t)
>          (gnuplot . t)
>          (haskell . nil)
>          (ocaml . nil)
>          (python . t)
>          (ruby . t)
>          (screen . nil)
>          (sh . t)
>          (sql . nil)
>          (sqlite . nil)))
>
>
>
> (require 'ob-R)
> ;(require 'ob-python)
> (require 'ob-ruby)
>
>
>
> Here is the emacs debugging output:
> Debugger entered--Lisp error: (void-variable org-babel-tangle-lang-exts)
>   add-to-list(org-babel-tangle-lang-exts ("ruby" . "rb"))
>
> byte-code("\301\302!\210\301\303!\210\301\304!\210\301\305!\210\306\307\310\"\210\311^HB^P\312\311!\204$^@\313\311\314\"\210\314\207"
> [current-load-list$
>   require(ob-ruby)
>   eval-buffer(#<buffer  *load*> nil "/Users/nputnam/.emacs" nil t)  ;
> Reading at buffer position 958
>   load-with-code-conversion("/Users/nputnam/.emacs" "/Users/nputnam/.emacs"
> t t)
>   load("~/.emacs" t t)
>   #[nil "^H\205\276^@   \306=\203^Q^@\307^H\310Q\202A^@
> \311=\2033^@\312\307\313\314#\203#^@\315\202A^@\312\307\313\316#\203/^@\317\202A^@\315\202A^@
> \3$
>   command-line()
>   normal-top-level()
>
>
>
>
>
> On Wed, Jul 7, 2010 at 10:29 PM, Eric Schulte <schulte.eric@gmail.com>wrote:
>
>> Hi Nicholas,
>>
>> I'm happy that you're enjoying Org-mode.
>>
>> Nicholas Putnam <nputnam@gmail.com> writes:
>>
>> > I'm new to, but loving playing with org-mode.  Thanks for this excellent
>> > code!
>> >
>> > I followed the directions for checking out the latest version with git,
>> so
>> > have been trying to catch up to the new configuration for babel, at the
>> same
>> > time that I'm learning the ropes of org-mode.
>> >
>> > I am finding that babel will not work unless org-babel-tangle-lang-exts
>> is
>> > set -- else I get the following error:
>> >
>> > "Symbol's value as variable is void: org-babel-tangle-lang-exts"
>> >
>> > Adding "(setq org-babel-tangle-lang-exts '("fortran" . "f"))" to my
>> > .emacs file (even though I'm not using fortran for anything) fixes
>> > this problem.
>> >
>>
>> I'm having trouble reproducing this problem.  As far as I can tell
>> `org-babel-tangle-lang-exts' is only called from language specific files
>> which should be required after that variable has been defined.
>>
>> Is it possible that your configuration is loading language-specific
>> files or touching org-babel-load-languages before you are calling
>> (require 'org-install)?
>>
>> >
>> > Also, I'm trying to get syntax highlighting of source code elements in
>> > HTML export.  Export looks great, but the code snippets are being
>> > exported inside <pre class="example"> tags, without any other markup.
>> > Can anyone point me in the right direction?
>> >
>>
>> Is the `org-export-htmlize' set to a non-nil value on your system?  If
>> so then that could be the cause of the problem.  If it is set to a
>> truthy value, and htmlize-region is defined in your Emacs, then I'm not
>> sure what the problem could be.
>>
>> Best -- Eric
>>
>> >
>> > Cheers,
>> >
>> > Nik Putnam
>> > _______________________________________________
>> > Emacs-orgmode mailing list
>> > Please use `Reply All' to send replies to the list.
>> > Emacs-orgmode@gnu.org
>> > http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>

[-- Attachment #4: Type: text/plain, Size: 201 bytes --]

_______________________________________________
Emacs-orgmode mailing list
Please use `Reply All' to send replies to the list.
Emacs-orgmode@gnu.org
http://lists.gnu.org/mailman/listinfo/emacs-orgmode