GNU bug report logs - #73284
[PATCH] Add option to push mark after delete-pair

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From: Juri Linkov <juri <at> linkov.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 73284 <at> debbugs.gnu.org, Paul Nelson <ultrono <at> gmail.com>
Subject: bug#73284: [PATCH] Add option to push mark after delete-pair
Date: Tue, 17 Sep 2024 09:56:00 +0300

>> The delete-pair command from lisp.el deletes a matched pair of
>> delimiters.  After using this command, I often want to operate on the
>> region enclosed by the deleted delimiters.  As far as I know, there's
>> currently no quick way to access the end of that region.
>>
>> This patch introduces a custom option, delete-pair-push-mark.  When
>> enabled, it causes delete-pair to push a mark at the end of the
>> enclosed region.
>>
>> This opens up various workflows.  For instance, after deleting a pair,
>> we can use C-x C-x to highlight the region and act on it further.
>
> Shouldn't this activate the region, instead of forcing users to do
> that manually?  Users that have transient-mark-mode enabled (which is
> ON by default), will expect that, I think.

Please don't activate the region since this command is not related
to region selection.

>> To err on the side of caution, I hid the new behavior behind a user
>> option, disabled by default.  I could just as well see it being turned
>> on by default (or getting rid of the user option, making the new
>> behavior "mandatory"), and am open to suggestions/feedback.
>
> I don't think doing this by default is a good idea.  Such significant
> changes in behavior are better off starting disabled.
>
> Let's see what others think about such optional behavior.

I use delete-pair all the time, and sometimes indeed occurs the need
to operate on the boundaries of the deleted delimiters afterwards.
A workaround was to select the region before using delete-pair,
and for example reindent it.  But adding an easy way to do the same
after using delete-pair by pushing the mark for 'C-x C-x' would be nice.

This command doesn't use the region and I don't remember a need
to use the mark immediately before or after executing this command,
so it seems safe to push the mark without an option.

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