From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: new exporter, conditional options according to backend
Date: Fri, 25 Jan 2013 14:23:41 +0100
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In-Reply-To: <87pq0uqq2z.fsf@med.uni-goettingen.de> (Andreas Leha's message of
	"Thu, 24 Jan 2013 21:32:52 +0100")
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To: Andreas Leha <andreas.leha@med.uni-goettingen.de>
Cc: emacs-orgmode@gnu.org

Hello,

Andreas Leha <andreas.leha@med.uni-goettingen.de> writes:

> Sorry for hijacking this thread.  But I am also interested in backend
> specific options.  Could you give an example of how to achieve something
> like this with the new exporter:
>
> #+begin_src R :results graphics :file (if (and (boundp 'org-export-current-backend) (eq org-export-current-backend 'e-latex)) "foo.pdf" "foo.png")
>   plot(1:10)
> #+end_src

You need to process the buffer being exported before Babel blocks are
expanded. You could use `org-export-before-processing-hook' for that.

For example, you could define a specific extension for :file values,
like "foo.xxx", process the buffer and and replace "xxx" with an
appropriate extension according to the current back-end (the argument of
the function).


Regards,

-- 
Nicolas Goaziou