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

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Message #44 received at 27391 <at> debbugs.gnu.org (full text, mbox):

From: vincent.belaiche <at> gmail.com (Vincent Belaïche)
To: Eli Zaretskii <eliz <at> gnu.org>, 27391 <at> debbugs.gnu.org
Cc: Vincent Belaïche <vincent.belaiche <at> gmail.com>
Subject: Re: bug#27391: 25.2.50;
 utf-8 coding cookie is not applied on some specific markdown file
Date: Sat, 17 Jun 2017 00:09:56 +0200

Le 16/06/2017 à 21:37, Vincent Belaïche a écrit :
>
>
> Le 16/06/2017 à 21:15, Vincent Belaïche a écrit :
>>

[...]

>>
>>
> 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. 

I have located the bug.

After some more investigation, in the end the find-auto-coding of
mule.el is what is called to detect the coding.

This function evaluates this expression to find the local variables:

 (re-search-forward
	       "[\r\n]\\([^[\r\n]*\\)[ \t]*Local Variables:[ \t]*\\([^\r\n]*\\)[\r\n]"
	       tail-end t)

This expression evaluates to nil over file CONTRIBUTING.md

I can make a simple fix if you tell me on which branch to do it.

However I think that the root of the problem is poor code factorization
of local variable parsing between mule.el and file.el. A better, more
futureproof fix would be some unique local variable parser with some
input constrain telling what sort of setting are sought. The output of
the parse could be used in file.el and mule.el.

  Vincent.


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