[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#33341: 27.0.50; Undo log merging and change groups
From: |
Lars Ingebrigtsen |
Subject: |
bug#33341: 27.0.50; Undo log merging and change groups |
Date: |
Thu, 26 Nov 2020 13:34:40 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Michael Heerdegen <michael_heerdegen@web.de> writes:
> I have been playing with the undo change group functions. I found
> `cancel-change-group' does not always work as expected. For example, if
> you define
>
> (defun my-test-change-groups ()
> (interactive)
> (insert "0\n")
> (let ((g (prepare-change-group)))
> (activate-change-group g)
> (insert "b\n")
> (insert "c\n")
> (cancel-change-group g)))
>
> and call that command in some random buffer, the final
> `cancel-change-group' has no effect (i.e. nothing is reverted). In
> other, similar examples, `cancel-change-group' seems to revert more than
> it should.
Hm... Well, after running this command, hitting "undo" removes all the
three lines, which is what I'd expect? Since you cancelled the change
group?
Or... Hm. Well, calling accept-change-group has exactly the same
effect, so it seems like I'm misunderstanding how this is supposed to
work.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- bug#33341: 27.0.50; Undo log merging and change groups,
Lars Ingebrigtsen <=
- bug#33341: 27.0.50; Undo log merging and change groups, Michael Heerdegen, 2020/11/26
- bug#33341: 27.0.50; Undo log merging and change groups, Michael Heerdegen, 2020/11/26
- bug#33341: 27.0.50; Undo log merging and change groups, Michael Heerdegen, 2020/11/26
- bug#33341: 27.0.50; Undo log merging and change groups, Stefan Monnier, 2020/11/26
- bug#33341: 27.0.50; Undo log merging and change groups, Michael Heerdegen, 2020/11/26
- bug#33341: 27.0.50; Undo log merging and change groups, Stefan Monnier, 2020/11/27
- bug#33341: 27.0.50; Undo log merging and change groups, Michael Heerdegen, 2020/11/27