GNU bug report logs - #22417
Self parsing bug

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Message #17 received at 22417 <at> debbugs.gnu.org (full text, mbox):

From: andreas.tjarnberg <at> fripost.org
To: Mosè Giordano <mose <at> gnu.org>
Cc: 22417 <at> debbugs.gnu.org
Subject: Re: bug#22417: Self parsing bug
Date: Wed, 20 Jan 2016 22:50:35 +0100

2016-01-20 22:44 skrev andreas.tjarnberg <at> fripost.org:
> 2016-01-20 22:29 skrev Mosè Giordano:
>> Hi Andrea,
>> 
>> 2016-01-20 22:09 GMT+01:00  <andreas.tjarnberg <at> fripost.org>:
>>> Hi,
>>> 
>>> I came across the following error when loading a tex file.
>>> It somehow seems to be connected to the latex package subfigure.
>>> 
>>> * Bug report in org-mode markup
>>> 
>>> Ubuntu 15.10
>>> Emacs version: GNU Emacs 25.1.50.2 (x86_64-pc-linux-gnu, GTK+ Version
>>> 3.16.7) of 2016-01-20
>>> Auctex version: auctex.git commit #4f618ec
>>> 
>>> I fetch =auctex= with =el-get= but later only start it with =-l 
>>> auctex.el=,
>>> either way produces the same error.
>>> 
>>> I start emacs
>>> #+begin_src sh
>>> emacs -q -l auctex.el
>>> #+end_src
>>> 
>>> I then load my TeX setting
>>> #+begin_src emacs-lisp
>>> (setq debug-on-error t)
>>> (setq TeX-parse-self t)
>>> #+end_src
>>> 
>>> I then proceed to load my latex file
>>> 
>>> #+name: tex-file
>>> #+begin_src sh :results output
>>> cat equations.tex
>>> #+end_src
>>> 
>>> #+RESULTS: tex-file
>>> #+begin_example
>>> \documentclass[12pt]{article}
>>> % \usepackage{graphicx}
>>> % \makeatletter
>>> % \g <at> addto <at> macro\@floatboxreset\centering
>>> % \makeatother
>>> \usepackage{subfigure}
>>> 
>>> \pagestyle{empty}
>>> \begin{document}
>>> 
>>> \begin{displaymath}
>>>   \textbf{G}: \textbf{P} \mapsto \textbf{Y}
>>> \end{displaymath}
>>> 
>>> \end{document}
>>> %%% Local Variables:
>>> %%% mode: latex
>>> %%% TeX-master: t
>>> %%% End:
>>> #+end_example
>>> 
>>> This produces an error as follows:
>>> Debugger entered--Lisp error: (wrong-number-of-arguments setq 3)
>>> signal(wrong-number-of-arguments (setq 3))
>>> 
>>> (for some reason I can't paste the whole traceback in the mail 
>>> client)
>>> 
>>> I noticed that when not using the =\usepackage{subfigure}= package, 
>>> the
>>> error does not appear.
>>> 
>>> I think this is a bug but can't figure out where exactly it's coming 
>>> from or
>>> how it appears.
>> 
>> Do you get the error every time you open that file?  I can't reproduce
>> this bug with Emacs 24.5, same version of AUCTeX.  I can open the file
>> and compile it without any problem.  Have you tried to check whether
>> you have something in your init file triggering this bug?
>> 
>> Bye,
>> Mosè
> 
> The only thing I load is auctex.el and the two lines
> (setq debug-on-error t)
> (setq TeX-parse-self t)
> so my init should be only that.
> 
> The original error prevents the file to open but on subsequent tries
> the files opens without error.
> I didn't triet with an older version of emacs as I don't have it 
> currently.
> I think it's a bit odd that it seems to be triggered by a latex 
> package.

I loaded a regular tex file and figured out that different latex packges 
have there own style file in auctex
subdirectory

looking in the file
auctex/style/subfigure.el i found the following setq command that fails 
when I try to execute it with the same error as i got before.

   ;; Install completion for labels:
   (setq TeX-complete-list
	 (append
	  '(("\\\\[Ss]ubref{\\([^{}\n\r\\%,]*\\)" 1 LaTeX-label-list "}")))
	  TeX-complete-list)

maybe this is what causes the error. I don't understand why the error 
only happens for me though.

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