[babel] Meta-LaTeX-Python-Environment

From: Dan Davison <davison@stats.ox.ac.uk>
To: Torsten Wagner <torsten.wagner@gmail.com>
Cc: Emacs-orgmode@gnu.org
Subject: [babel] Meta-LaTeX-Python-Environment
Date: Thu, 29 Oct 2009 11:52:25 -0400	[thread overview]
Message-ID: <87y6mudwp2.fsf_-_@stats.ox.ac.uk> (raw)
In-Reply-To: <4edb2bbc0910270629q23323792r4d15bd952c81d376@mail.gmail.com> (Torsten Wagner's message of "Tue, 27 Oct 2009 22:29:39 +0900")

Hi Torsten,

Torsten Wagner <torsten.wagner@gmail.com> writes:

<...>
> I used the following simple example:

<...>
> #+srcname: test()
> #+begin_src python  :results latex

<...>

> As you can see, the result is wrapped now in LaTeX source code blocks.
> However, if I export the file by
> M-x org-export l
> the resulting LaTeX file still contains the source code itself (the part in the 
> verbatim environment.

Yes, you need ':exports results' as well as ':results latex'. The
':results latex' is necessary to specify that the *result* of the block
is latex code. The ':exports results' is necessary in order to tell it
only to include the result in the export product.

<...>
> Wished export-result (trimmed to relevant part):
> ...
> \usepackage{color}
> \definecolor{gray}{gray}{0.95}
> ...
> \section{Simple Test of org-babel}
> \label{sec-1}
> \colorbox{gray}{
> This is a Test: if a =1 and b = 2 then a + b = 3 right ?!
> }
> ...
>

> As you can see, I like to indicate the source block results resp. the LaTeX 
> source code blocks in a way which indicate clearly that they belong to the 
> "official" output. E.g. by adding a slight gray background.

OK, so I think what you want is that the results are

(a) latex code, and
(b) in a box, set apart as different from the main text

Well, org-babel doesn't do anything like that with latex results by
default, so you'd have to do it yourself. How about defining a source
block function which does the job of putting your latex results in a
box, and calling it with #+lob ? The following exports to latex with the
results in a red box. (Please pull the latest org-mode as this required
a change that I've just made.)

--8<---------------cut here---------------start------------->8---
#+LATEX_HEADER: \usepackage{color}

* Simple Test of org-babel
#+srcname: test()
#+begin_src python :exports none
  a = 1
  b = 2
  c = a+b
  "This is a Test: if a =" + str(a) + " and b = " + str(b) + " then a + b = " + str(c) + " right ?!" 
#+end_src

#+lob: putinbox(body=test()) :results latex :exports results

* Library code
  This could go in a separate file, as long as the file is added to the
  Library of Babel.
#+srcname: putinbox(body)
#+begin_src latex :exports none
\colorbox{red}{
body
}
#+end_src
--8<---------------cut here---------------end--------------->8---

>
> As mentioned before, I like to have mainly three ways of export 
> 1. Export everything

:exports both

> 2. Export everything except the source codes itself

:exports results

> 3. Export a particular LaTeX source code session (e.g. by using the tangle 
> function)

tangle

Hth,

Dan

>
> Nevertheless, I will try the other very good ideas in this thread. Maybe this 
> works for me already.
>
> Best regards and thanks again 
>
> Torsten
>
>
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