GNU bug report logs - #13452
24.1; Macro Playback Fails When Buffer Scrolls

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Message #20 received at 13452-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: abbott <at> dima.unige.it, Markus Triska <triska <at> metalevel.at>,
 Raymond Zeitler <rzeitler <at> phonon.com>
Cc: 13452-done <at> debbugs.gnu.org
Subject: Re: bug#23551: 24.5; beginning-of-line wrong in repeated kbd macro
Date: Sat, 28 May 2016 18:38:53 +0300

> Date: Mon, 16 May 2016 20:30:29 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 23551 <at> debbugs.gnu.org
> 
> > Date: Mon, 16 May 2016 16:30:32 +0000
> > From: abbott <at> dima.unige.it
> > Cc: Abbott John <abbott <at> dima.unige.it>
> > 
> > Open the attached file in Emacs, and move point to the first position.
> > Define a keyboard macro: (I want to put each line inside double-quotes)
> > "			;; self-insert-command
> > C-e			;; move-end-of-line
> > "			;; self-insert-command
> > C-a			;; message-beginning-of-line
> > <down>			;; next-line
> > 
> > Now ask Emacs to repeat this macro 49 times.
> > The result is wrong: at around line 35, the first double-quote
> > is no longer at the start of the line; then on successive lines
> > the position of the first inserted double-quote walks to the right.
> 
> Thanks.
> 
> This is a duplicate of the (old, but unsolved) bug #13452.  The
> problem is not in beginning-of-line, it's in next-line: when the
> window needs to scroll as result of next-line, point ends up in
> columns 1, 2, 3, ... (i.e. gains one column per line moved down),
> instead of sticking to column zero.
> 
> To work around, set line-move-visual to nil before running the macro
> (or as part of the macro), then the problem goes away.
> 
> I'll try to debug this one of these days.

Should be fixed now, please test the latest Emacs master branch.

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