From mboxrd@z Thu Jan  1 00:00:00 1970
From: Juan Pechiar <juan@pechiar.com>
Subject: Re: conditional export based on target
Date: Sat, 23 Oct 2010 21:46:08 -0200
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References: <m3ocb6d403.fsf@david.espiga4.com.ar>
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To: Ezequiel Birman <stormwatch@espiga4.com.ar>
Cc: emacs-orgmode@gnu.org

On Thu, Oct 07, 2010 at 01:24:28AM -0300, Ezequiel Birman wrote:
> Is there something like conditional export? I'd like to use tikz when
> exporting to latex but my own hand-made ascii drawing when exporting to
> ascii/latin1/utf8.

Hi,

I've been thinking on your request, and today this appeared on the
list which is quite similar:

http://lists.gnu.org/archive/html/emacs-orgmode/2010-10/msg01106.html

It seems as if block settings can be lisp function calls rather than a
fixed string.

So, for example:

//------------------------------------------------------------
** Test conditional export

#+source: test_output
#+begin_src octave :results value vector :exports (if (and (boundp 'htmlp) htmlp) "none" "results" )
rand(2)
#+end_src

#+results: test_output
| 0.3982018019389448 | 0.3879818701032038 |
| 0.8053847746148466 | 0.3333630867175288 |
------------------------------------------------------------

Will export nothing to HTML, and the resulting output to other
formats.

Values for 'exports' can be 'both', 'none', 'code' or 'results'; and
there are export flags latexp, htmlp, asciip, docbookp.

I tested the above example, and it "mostly" works. Sometimes not, and
I don't yet know why.

BR
.j.