bug#43209: closed (27.1; rectangle-mark-mode does not activate region if transient mark mode disabled)

[GNU bug Tracking System]

Your message dated Wed, 23 Jun 2021 05:33:10 +0000
with message-id 
<CADbSrJxsBzEGXF9SvAJZhdnUQ6u9vQxc_=SSZc+DGQEmawY-mA@mail.gmail.com>
and subject line Re: bug#43209: 27.1; rectangle-mark-mode does not activate 
region if transient mark mode disabled
has caused the debbugs.gnu.org bug report #43209,
regarding 27.1; rectangle-mark-mode does not activate region if transient mark 
mode disabled
to be marked as done.

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43209: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=43209
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> --- Begin Message ---
>
>
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> Subject: 
>
> 27.1; rectangle-mark-mode does not activate region if transient mark mode disabled
>
>
>
>
> Date: 
>
> Fri, 04 Sep 2020 20:04:06 -0700
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>
>
>
> 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
>
>
>
>
> --- End Message ---

--- Begin Message --- Subject: Re: bug#43209: 27.1; rectangle-mark-mode does not activate region if transient mark mode disabled Date: Wed, 23 Jun 2021 05:33:10 +0000

On Sat, Jun 19, 2021 at 12:21 PM Lars Ingebrigtsen <larsi@gnus.org> wrote:

Allen Li <darkfeline@felesatra.moe> writes:

>  I'm not quite sure I fully understand the suggestion -- do you mean that
>  `C-x SPC' should switch transient-mark-mode on if it isn't already?
>  (And then switch it off again in `deactivate-mark-hook'?)
>
> Behavior-wise, it should work the same as `C-SPC C-SPC` when
> transient-mark-mode is off,
> (temporarily enable transient-mark-mode and active region).
> I don't remember how that is implemented off the top of my head.

We don't normally switch transient mark mode on (even temporarily)
unless the user has requested so (with `C-SPC C-SPC', for instance).  So
I still don't understand why this rectangle command should do so.

`C-x SPC' seems to work fine both with transient mode on or off, as far
as I can tell?

I suppose it does.  I guess I originally did not appreciate how one could use rectangle-mark-mode

with a non-active region, but it seems to work as the me today expects, so I'll close this bug.

 

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

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