GNU bug report logs - #77607
31.0.50; replace-region-contents moves point

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Message #11 received at 77607 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 77607 <at> debbugs.gnu.org, "Paul D. Nelson" <ultrono <at> gmail.com>
Subject: Re: bug#77607: 31.0.50; replace-region-contents moves point
Date: Mon, 07 Apr 2025 11:11:44 -0400

>> The info docs for replace-region-contents say that it attempts to
>> preserve point.  With the latest update, it fails to preserve point in
>> cases where it did before.  I fixed my use case with save-excursion, and
>> the docs are vague enough that this issue might not qualify as a bug,
>> but I figured I'd report it just in case it was unintentional, or in
>> case others come across it.
>>
>> For example:
>>
>> (with-temp-buffer
>>   (insert "abc")
>>   (replace-region-contents (- (point) 3) (- (point) 2) (lambda () "A"))
>>   (char-to-string (char-before)))
>>
>> now returns "A", but I believe that it previously returned "c".
>
> Stefan, any comments?

Indeed that's a bug.


        Stefan

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