bug#27391: 25.2.50; utf-8 coding cookie is not applied on some specific markdown file

["Vincent Belaïche" <vincent.belaiche@gmail.com>]

Le 16/06/2017 à 21:15, Vincent Belaïche a écrit :
>
>
> Le 16/06/2017 à 20:38, Eli Zaretskii a écrit :
>>> From: vincent.belaiche@gmail.com (Vincent Belaïche)
>>> Cc: Vincent Belaïche <vincent.belaiche@gmail.com>
>>> Date: Fri, 16 Jun 2017 16:08:09 +0200
>>>
>>> Attached is the file causing the issue. Recipe is just to visit the 
>>> file
>>> with emacs -q, and you see that the encoding is not taken.
>> Your fancy comment causes this: remove the leading '[' and the problem
>> goes away.  Looks like regex-quoting that somehow misfires.
>
> After some investigation, it seems that the bug is in regexp-quote:
>
> (regexp-quote "[comment]: # (")
>
> outputs
>
> "^\\[comment]: # ( "
>
> instead of
>
> "^\\[comment\\]: # ( "
>
>
>   Vincent.
>
>
After some more investigation, I think that the bug is in function
insert-file-contents of fileio.c which is the one that decide and sets
the coding system well before the other local variables are looked into.

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