From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Schulte <eric.schulte@gmx.com>
Subject: Re: [bug] Problem when tangling into LaTeX
Date: Mon, 30 Jan 2012 18:40:58 -0700
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In-Reply-To: <80wr88zyv8.fsf@somewhere.org> (Sebastien Vauban's message of
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To: Sebastien Vauban <wxhgmqzgwmuf@spammotel.com>
Cc: emacs-orgmode@gnu.org

"Sebastien Vauban" <wxhgmqzgwmuf@spammotel.com> writes:

> #+TITLE:     Noweb references in LaTeX document
> #+DATE:      2012-01-30
>
> * Summary
>
> ** Problem
>
> I use 3 chunks of LaTeX code which I wanna insert in a LaTeX document.
>
> While 1 of them is correctly tangled into the LaTeX document, the 2 others
> generate errors when C-c C-v C-t'ing:
>
>     "if: reference '<<who' not found in this buffer"
>
> and, if I temporarily replace `<<who()>>' by `<<who>>', I get the next error:
>
>     "if: reference '    <<solde' not found in this buffer"
>
> What I don't understand is that there is no -- sorry, I mean: I don't see --
> the difference between the 3 noweb references. They all seem correctly
> written...
>
> ** Note
>
> Remember that, up to now, such a document *must be first tangled* and then
> post-processed via =PDFLaTeX=. It can not be exported directly to PDF/HTML (=args
> out of range= error).
>
> * Example
>
> ** Part 1
> #+name: who
> #+begin_src org :results latex
> 1111ToMe
> #+end_src
>
> ** Part 2
> #+name: before
> #+begin_src org :results latex
> 2222BeforeDate
> #+end_src
>
> ** Part 3
> #+name: solde
> #+begin_src org :results latex
> 3333Rest
> #+end_src
>
> ** Composed letter
> #+begin_src latex :noweb yes :tangle yes
> \documentclass{article}
> \usepackage[utf8x]{inputenc}
> \usepackage[T1]{fontenc}
>
> \begin{document}
>
> \begin{textblock}{85}(98,35)
> \titlebox{9.4cm}{Foo}{% HERE 1111 <<<<
> <<who()>>
> }
> \end{textblock}
>
> \begin{textblock}{110}(25,195)
>     Some sentence
>     <<before()>> \hfill{}% HERE 2222 <<<<
>     <<solde()>> EUR% HERE 3333 <<<<
> \end{textblock}
>
> \end{document}
> #+end_src
>
> Best regards,
>   Seb

Currently newlines are allowed in noweb reference names causing the
problems you noticed above.  I've just pushed up a change which
disallows newline characters in noweb references and fixes the odd
behavior you describe.

Best,

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