GNU bug report logs - #46171
27.1; buffer-file-coding-system

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Message #8 received at 46171 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Gordillo-Marquijano Daniel-Fabian <daniel-f.gordillo <at> inetum.world>
Cc: 46171 <at> debbugs.gnu.org
Subject: Re: bug#46171: 27.1; buffer-file-coding-system
Date: Fri, 29 Jan 2021 15:58:49 +0200

> Date: Fri, 29 Jan 2021 12:14:45 +0000
> From: daniel-f.gordillo--- via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> 
> In Emacs for Windows: I opened a SQL generated file with coding utf-8,
> but it's identified as iso-latin-1 (but it's not true). The same file,
> in Emacs for gnu/Linux, it's identified as utf-8.

It isn't always possible to identify the UTF-8 encoding, so when the
default of the locale is not UTF-8 (and it never is on MS-Windows),
Emacs sometimes guesses wrong.

To work around this, if you know the file is encoded in UTF-8, you can
tell Emacs about that:

  C-x RET c utf-8 RET C-x C-f <the-file> RET

OTOH, if SQL files are always encoded in UTF-8 (are they?), we can add
this knowledge to Emacs, assuming these files have some known
file-name extension, or have some telltale string at their beginning.

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