From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Schulte <schulte.eric@gmail.com>
Subject: Re: [ANN] BREAKING CHANGE -- removing #+BABEL file-wide property
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Date: Tue, 25 Oct 2011 08:13:49 -0600
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To: Sebastien Vauban <wxhgmqzgwmuf@spammotel.com>
Cc: emacs-orgmode@gnu.org

> I think that makes sense.
>
> While thinking about all of this, and working in real-life documents, I just
> came back to a suggestion which I made some time ago. It goes about this
> enhancement:
>
>     Would it be possible to specify "buffer-wide language specific" header
>     arguments?
>

Yes, this is already possible.  You can customize the
org-babel-default-header-args:lang variable (where "lang" is the source
name) as a file local variable.

>
> That is, be able to say:
>
>     "In this document, I want to:
>     - tangle all my .sql chunks, but no other;
>     - eval all the elisp chunks with query, but no other."
>
> Something we could write quite easily along the lines:
>
>     #+PROPERTY:               tangle no
>     #+PROPERTY:               eval never
>     #+PROPERTY[SQL]:          tangle yes
>     #+PROPERTY[EMACS-LISP]:   eval query
>
>     (the syntax used here is just a draft sample!)
>

I do not think we can customize the PROPERTY syntax as is exists outside
of Babel.  The goal here was to piggy-back on top of rather than co-opt
regular Org-mode syntax.

Best -- Eric

>
> What do you think about this feature? If you feel it can be something
> interesting to have, this is surely to incorporate in the current syntax
> debate. If not... never mind.
>
> Best regards,
>   Seb

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