GNU bug report logs - #12925
24.1; string-make-unibyte instead of string-as-unibyte

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Package: emacs;

Reported by: Ethan Glasser-Camp <ethan.glasser.camp <at> gmail.com>

Date: Sun, 18 Nov 2012 17:47:01 UTC

Severity: minor

Found in version 24.1

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Message #11 received at 12925 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 12925 <at> debbugs.gnu.org, Ethan Glasser-Camp <ethan.glasser.camp <at> gmail.com>
Subject: Re: bug#12925: 24.1; string-make-unibyte instead of string-as-unibyte
Date: Tue, 01 Jun 2021 09:02:13 +0200
Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> Why does inserting multibyte text into a unibyte buffer corrupt it
>> like this?
>
> Because the right thing (i.e. signaling an error) was not backward
> compatible with broken code that assumed that chars can be presented
> with 8bit (i.e. code written in the glory days of latin-N, koi-8, ...).
>
> We could/should probably try to do the right thing now, since such
> broken code is probably much less common.

(Now eight years later.)

So the suggestion is to make inserting multibyte strings into a unibyte
buffer signal an error (instead of inserting the lower byte of
characters).

Has anybody experimented with doing this and seeing whether this signals
a lot of errors in daily usage?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no




This bug report was last modified 4 years and 11 days ago.

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