* How to set a default language for source blocks?
@ 2015-02-17 19:44 Grant Rettke
2015-02-17 19:51 ` Rasmus
2015-02-17 20:09 ` Jorge A. Alfaro-Murillo
0 siblings, 2 replies; 4+ messages in thread
From: Grant Rettke @ 2015-02-17 19:44 UTC (permalink / raw)
To: emacs-orgmode@gnu.org
Good afternoon,
Just read [this] question. It is interesting. We always want to optimize
our documents. Re-use reduces errors. Defining `:header-args:foo:
:session *bar*' is a great example. Rather than having to type it 100
times all over, just do it once. It never occurred to be that we might
want to default the language for a source block. It should have. It
would be simpler to say "this whole document will be R source blocks,
unless I specify other wise". I looked at [the spec]. I wanted to obtain
this behavior. I couldn't figure out how. Is it possible? I didn't look
at the parser, is that the right place to look to answer questions like
this?
[this]
https://emacs.stackexchange.com/questions/8314/set-default-language-for-code-blocks-in-orgmode/9316#9316
[the spec]
http://orgmode.org/manual/Structure-of-code-blocks.html#Structure-of-code-blocks
--
Grant Rettke
gcr@wisdomandwonder.com | http://www.wisdomandwonder.com/
“Wisdom begins in wonder.” --Socrates
((λ (x) (x x)) (λ (x) (x x)))
“Life has become immeasurably better since I have been forced to stop
taking it seriously.” --Thompson
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: How to set a default language for source blocks?
2015-02-17 19:44 How to set a default language for source blocks? Grant Rettke
@ 2015-02-17 19:51 ` Rasmus
2015-02-17 20:09 ` Jorge A. Alfaro-Murillo
1 sibling, 0 replies; 4+ messages in thread
From: Rasmus @ 2015-02-17 19:51 UTC (permalink / raw)
To: emacs-orgmode
Grant Rettke <gcr@wisdomandwonder.com> writes:
> Just read [this] question. It is interesting. We always want to optimize
> our documents. Re-use reduces errors. Defining `:header-args:foo:
> :session *bar*' is a great example. Rather than having to type it 100
> times all over, just do it once. It never occurred to be that we might
> want to default the language for a source block. It should have. It
> would be simpler to say "this whole document will be R source blocks,
> unless I specify other wise". I looked at [the spec]. I wanted to obtain
> this behavior. I couldn't figure out how. Is it possible? I didn't look
> at the parser, is that the right place to look to answer questions like
> this?
You don't have to check the implementation, you can simply check the Org
syntax¹.
Blocks
Like greater blocks, pattern for blocks is:
#+BEGIN_NAME DATA
CONTENTS
#+END_NAME
NAME cannot contain any whitespace character.
[...] If it is “SRC”, it will be a “source block” [...]
DATA can contain any character but a new line. It can be ommitted,
unless the block is a “source block”. In this case, it must follow the
pattern “LANGUAGE SWITCHES ARGUMENTS”, where SWITCHES and ARGUMENTS
are optional.
—Rasmus
Footnotes:
¹ http://orgmode.org/worg/dev/org-syntax.html
--
The right to be left alone is a human right
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: How to set a default language for source blocks?
2015-02-17 19:44 How to set a default language for source blocks? Grant Rettke
2015-02-17 19:51 ` Rasmus
@ 2015-02-17 20:09 ` Jorge A. Alfaro-Murillo
2015-02-18 2:26 ` Grant Rettke
1 sibling, 1 reply; 4+ messages in thread
From: Jorge A. Alfaro-Murillo @ 2015-02-17 20:09 UTC (permalink / raw)
To: emacs-orgmode
Hi, Grant.
Grant Rettke writes:
> It would be simpler to say "this whole document will be R source
> blocks, unless I specify other wise". I looked at [the spec]. I
> wanted to obtain this behavior. I couldn't figure out how. Is it
> possible?
The problem is that if there is nothing after #+BEGIN_SRC, then
org-babel-get-src-block-info returns nil. Probably you would have
to modify org-babel-get-src-block-info so that it returns a
default when there is nothing after #+BEGIN_SRC. But isn't it
easier to set org-structure-template-alist as a local buffer
variable, say in the first line of your file something like:
#+BEGIN_EXAMPLE
# -*- org-structure-template-alist: '(("s" "#+BEGIN_SRC
python\n?\n#+END_SRC")) -*-
#+END_EXAMPLE
Then <s followed by TAB, would always get you python for that
file, for example.
Best,
--
Jorge.
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: How to set a default language for source blocks?
2015-02-17 20:09 ` Jorge A. Alfaro-Murillo
@ 2015-02-18 2:26 ` Grant Rettke
0 siblings, 0 replies; 4+ messages in thread
From: Grant Rettke @ 2015-02-18 2:26 UTC (permalink / raw)
To: Jorge A. Alfaro-Murillo; +Cc: emacs-orgmode@gnu.org
Rasmus: Thanks
Jorge: Yes probably
On Tue, Feb 17, 2015 at 2:09 PM, Jorge A. Alfaro-Murillo
<jorge.alfaro-murillo@yale.edu> wrote:
> Hi, Grant.
>
> Grant Rettke writes:
>
>> It would be simpler to say "this whole document will be R source blocks,
>> unless I specify other wise". I looked at [the spec]. I wanted to obtain
>> this behavior. I couldn't figure out how. Is it possible?
>
>
> The problem is that if there is nothing after #+BEGIN_SRC, then
> org-babel-get-src-block-info returns nil. Probably you would have to modify
> org-babel-get-src-block-info so that it returns a default when there is
> nothing after #+BEGIN_SRC. But isn't it easier to set
> org-structure-template-alist as a local buffer variable, say in the first
> line of your file something like:
>
> #+BEGIN_EXAMPLE
> # -*- org-structure-template-alist: '(("s" "#+BEGIN_SRC
> python\n?\n#+END_SRC")) -*-
> #+END_EXAMPLE
>
> Then <s followed by TAB, would always get you python for that file, for
> example.
>
> Best,
>
> --
> Jorge.
>
>
--
Grant Rettke
gcr@wisdomandwonder.com | http://www.wisdomandwonder.com/
“Wisdom begins in wonder.” --Socrates
((λ (x) (x x)) (λ (x) (x x)))
“Life has become immeasurably better since I have been forced to stop
taking it seriously.” --Thompson
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-02-17 19:44 How to set a default language for source blocks? Grant Rettke
2015-02-17 19:51 ` Rasmus
2015-02-17 20:09 ` Jorge A. Alfaro-Murillo
2015-02-18 2:26 ` Grant Rettke
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