GNU bug report logs - #43209
27.1; rectangle-mark-mode does not activate region if transient mark mode disabled

Previous Next

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Allen Li <darkfeline <at> felesatra.moe>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.1; rectangle-mark-mode does not activate region if transient
 mark mode disabled
Date: Fri, 04 Sep 2020 20:04:06 -0700

rectangle-mark-mode does not activate region if transient mark mode is
disabled.

Steps:

1. emacs -Q
2. M-x transient-mark-mode RET
3. C-x SPC

Expected:

Region is activated temporarily.

Actual:

Region is not activated.  Note that rectagle-mark-mode is still
partially enabled.  For example, C-x C-x moves point according to the
rectangular region, but you cannot move point beyond the end of the
line.

I propose making rectangle-mark-mode activate the region even if
transient-mark-mode is disabled for a number of reasons.

I think it's a reasonable interpretation of the docstring:

Activates the region if needed.  Only lasts until the region is
deactivated.

rectangle-mark-mode is transient like having an active region and unlike
having a mark.  That is to say, someone who uses the mark with
transient-mark-mode off may not want to operate on the region and thus
not want to activate the region (e.g., when using the mark to jump to
later), but there is no use case for rectangle-mark-mode that does not
involve operating on the region.

Also since rectangle-mark-mode is transient, it makes sense to couple it
with region activation as the active region is also transient with the
same lifespan.

In GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.22)
 of 2020-08-13 built on juergen
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Arch Linux

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.