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bug#23785: Emacs 25: "Undo" overdoes things.
From: |
Alan Mackenzie |
Subject: |
bug#23785: Emacs 25: "Undo" overdoes things. |
Date: |
Sat, 18 Jun 2016 17:41:36 +0000 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
Hello, Phil.
On Fri, Jun 17, 2016 at 10:23:51PM +0100, Phillip Lord wrote:
> Alan Mackenzie <acm@muc.de> writes:
> > I don't think it's all that minor an issue. `undo' can no longer be
> > depended upon to restore a buffer to its unchanged state.
> > I've suffered several similar annoyances with `undo' in the emacs-25
> > branch.
> If you report them, then I will look at them, and I would appreciate if
> you do report them.
For example, at times I've deleted a character, moved point, then deleted
another character. Undo has undone both deletions as a single operation,
despite the point movement between them.
> I changed undo in a way that *was* supposed to change its semantics,
> and this may have had negative side effects. Or my changes may have
> caused unexpected changes in semantics that I did not intend.
The lack of configurability seems to be a problem. There have been
times, testing times, when I've felt that each deletion of a character is
its own atomic operation. Yet I can't configure undo to respect this
wish.
[ .... ]
> I will investigate.
> Phil
--
Alan Mackenzie (Nuremberg, Germany).
- bug#23785: Emacs 25: 'Undo' overdoes things., (continued)
- bug#23785: Emacs 25: 'Undo' overdoes things., Stefan Monnier, 2016/06/21
- bug#23785: Emacs 25: 'Undo' overdoes things., Phillip Lord, 2016/06/21
- bug#23785: Emacs 25: 'Undo' overdoes things., Eli Zaretskii, 2016/06/21
- bug#23785: Emacs 25: 'Undo' overdoes things., Phillip Lord, 2016/06/21
- bug#23785: Emacs 25: 'Undo' overdoes things., Eli Zaretskii, 2016/06/21
- bug#23785: Emacs 25: "Undo" overdoes things., Phillip Lord, 2016/06/17
- bug#23785: Emacs 25: "Undo" overdoes things.,
Alan Mackenzie <=
- bug#23785: Emacs 25: "Undo" overdoes things., Óscar Fuentes, 2016/06/17
- bug#23785: Emacs 25: "Undo" overdoes things., Phillip Lord, 2016/06/20