[Bug-AUCTeX] Re: 11.82; extra commented \begin{document} suppresses preview-latex

[Ralf Angeli]

* Richard Lewis (2006-01-12) writes:

> Ralf Angeli <address@hidden> writes:
>
>> (setq LaTeX-header-end "^[ \t]*\\\\begin *{document}"
>>       LaTeX-trailer-start "^[ \t]*\\\\end *{document}")
>>
>> before latex.el is loaded.
>>
>> I'll have to check if using these values as default has any negative
>> side effects.
>
> I've been using
>
> (setq-default LaTeX-header-end "[^%]\\\\begin *{document}") ; for mylatex.ltx
>
> for ages without problems

Why the `setq-default'?  `LaTeX-header-end' is not buffer-local.

Anyway, your suggestion does not cover the testcase Patrick gave.
We'd probably need something like "^[^%\n]*\\\\begin *{document}".

It is not able to cope with \% but I guess this is less likely to
occur than a comment starter.  And it is quite expensive because it
uses a complemented character alternative with an indefinite number of
matches.

-- 
Ralf