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bug#13452: 24.1; Macro Playback Fails When Buffer Scrolls
From: |
Eli Zaretskii |
Subject: |
bug#13452: 24.1; Macro Playback Fails When Buffer Scrolls |
Date: |
Tue, 15 Jan 2013 21:15:38 +0200 |
> From: Raymond Zeitler <rzeitler@phonon.com>
> Date: Tue, 15 Jan 2013 18:01:13 +0000
> Cc: "r.zeitler@ieee.org" <r.zeitler@ieee.org>
>
> Create a file with many more lines than the buffer can display at once.
> In my test, the buffer has about 500 identical lines like this:
>
> 123456789 0123456789 01234567890
>
> Then place Point at line 1 column 1.
>
> I recorded the keyboard macro that you see in Recent Input, which merely
> moves point just past the first 9, then deletes it and puts an "x" in
> its place for the first three lines. Then it puts a "y" for the next
> three. Point is then moved to the start of the next line before the
> macro is finished recording.
>
> Play back the macro a few dozen times.
>
> As Point keeps moving down, the buffer will need to scroll. When it
> does scroll, Point will not return to the start of the next line.
Set line-move-visual to nil, and Bob's your uncle.
> I'm amazed that I've been using Emacs (with macros) for 12.5 years and
> never noticed this before!
line-move-visual didn't exist before Emacs 23. So most of those 12.5
years, the bug didn't exist, because the only behavior available was
the one you see when you set line-move-visual to a nil value.