GNU bug report logs - #7153
24.0.50; ediff-clone-buffer-for-region-comparison

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

From: Stephen Berman <stephen.berman <at> gmx.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50; ediff-clone-buffer-for-region-comparison
Date: Sun, 03 Oct 2010 17:41:45 +0200

1. emacs -Q
2. M-x ediff-regions-linewise, type RET twice to use *scratch* for both
   Ediff buffers (it doesn't matter which buffers are used).
3. Try to select a region with the mouse
=> Emacs beeps and announces the error "mouse-drag-track: The mark is
not set now, so there is no region" 

This happens on any click of the mouse in the buffer.  Nevertheless, it
is possible to select a region by dragging the mouse with mouse-1
pressed.  Subsequently, further mouse clicks do not raise an error any
more.  The bug also happens if I visit a file and call
ediff-regions-linewise on it.

If I comment out the line
    (ediff-activate-mark)
in ediff-clone-buffer-for-region-comparison (in ediff-util.el), then
eval that function, visit a file and call ediff-regions-linewise, then
clicking with mouse-1 does not raise an error.

I observe this bug since r101737, which fixed bug#7044.  That bug
prevented even trying step 3 in the above recipe, so I don't know if the
fix introduced the mouse-drag-track bug or revealed it.


In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.18.6)
 of 2010-10-03 on escher
Windowing system distributor `The X.Org Foundation', version 11.0.10605000
configured using `configure  '--without-toolkit-scroll-bars''

Message #8 received at 7153 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 7153 <at> debbugs.gnu.org
Subject: Re: bug#7153: 24.0.50; ediff-clone-buffer-for-region-comparison
Date: Tue, 10 May 2022 04:12:42 +0200

Stephen Berman <stephen.berman <at> gmx.net> writes:

> 1. emacs -Q
> 2. M-x ediff-regions-linewise, type RET twice to use *scratch* for both
>    Ediff buffers (it doesn't matter which buffers are used).
> 3. Try to select a region with the mouse
> => Emacs beeps and announces the error "mouse-drag-track: The mark is
> not set now, so there is no region" 

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I'm unable to reproduce this problem in Emacs 29.  Are you still seeing
this problem in recent Emacs versions?

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

Message #13 received at 7153 <at> debbugs.gnu.org (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 7153 <at> debbugs.gnu.org
Subject: Re: bug#7153: 24.0.50; ediff-clone-buffer-for-region-comparison
Date: Tue, 10 May 2022 09:23:33 +0200

On Tue, 10 May 2022 04:12:42 +0200 Lars Ingebrigtsen <larsi <at> gnus.org> wrote:

> Stephen Berman <stephen.berman <at> gmx.net> writes:
>
>> 1. emacs -Q
>> 2. M-x ediff-regions-linewise, type RET twice to use *scratch* for both
>>    Ediff buffers (it doesn't matter which buffers are used).
>> 3. Try to select a region with the mouse
>> => Emacs beeps and announces the error "mouse-drag-track: The mark is
>> not set now, so there is no region"
>
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
>
> I'm unable to reproduce this problem in Emacs 29.  Are you still seeing
> this problem in recent Emacs versions?

No, I can't reproduce it now either.

Steve Berman

Message #16 received at 7153 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: 7153 <at> debbugs.gnu.org
Subject: Re: bug#7153: 24.0.50; ediff-clone-buffer-for-region-comparison
Date: Tue, 10 May 2022 13:46:14 +0200

Stephen Berman <stephen.berman <at> gmx.net> writes:

> No, I can't reproduce it now either.

Thanks for checking; I'm closing this bug report, then.

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

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