GNU bug report logs - #44486
27.1; C-@ chars corrupt elisp buffer

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Thierry Volpiatto <thievol <at> posteo.net>
Subject: bug#44486: closed (Re: bug#44486: 27.1; C-@ chars corrupt elisp
 buffer)
Date: Sat, 14 Nov 2020 12:44:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#44486: 27.1; C-@ chars corrupt elisp buffer

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 44486 <at> debbugs.gnu.org.

-- 
44486: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=44486
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: handa <at> gnu.org
Cc: thievol <at> posteo.net, schwab <at> linux-m68k.org, 44486-done <at> debbugs.gnu.org
Subject: Re: bug#44486: 27.1; C-@ chars corrupt elisp buffer
Date: Sat, 14 Nov 2020 14:43:30 +0200

> Date: Fri, 06 Nov 2020 22:07:10 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: thievol <at> posteo.net, schwab <at> linux-m68k.org, 44486 <at> debbugs.gnu.org
> 
> We don't specify that prefer-utf-8, which is used by default for *.el
> files, should heed this variable.  Since prefer-utf-8 is a variant of
> 'undecided', i.e. it performs detection of encoding, I think this is a
> bug, because 'undecided' does pay attention to
> inhibit-null-byte-detection.
> 
> So I propose the change below (for master).  Any objections?

No objections, so I have now installed this on the master branch, and
I'm closing this bug report.

[Message part 3 (message/rfc822, inline)]

From: Thierry Volpiatto <thievol <at> posteo.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.1; C-@ chars corrupt elisp buffer
Date: Fri, 06 Nov 2020 16:11:28 +0100

1) emacs -Q
2) M-x find-file test.el
3) insert this in test.el buffer:
;; ààààà
(foo "^@")
4) save buffer
5) M-x revert-buffer

You should see now the line ;; ààààà corrupted:

NOTE: in 3) Write "^@" with C-q C-@.




In GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30, cairo version 1.15.10)
 of 2020-08-31 built on IPadS340
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Linux Mint 19.3

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-- 
Thierry

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