From: Toby Cubitt <toby-undo-tree-dated-1342530392.127d50@dr-qubit.org>
To: Martin Pohlack <mp26@os.inf.tu-dresden.de>
Cc: Bastien <bzg@gnu.org>, 11774@debbugs.gnu.org
Subject: bug#11774: [O] bug#11774: org-mode causes undo boundaries to be lost
Date: Tue, 3 Jul 2012 11:57:29 +0200 [thread overview]
Message-ID: <20120703095729.GA6651@c3po> (raw)
In-Reply-To: <4FF14504.10609@os.inf.tu-dresden.de>
On Mon, Jul 02, 2012 at 08:51:48AM +0200, Martin Pohlack wrote:
> > I'm still not entirely convinced that the boundary discarding logic in
> > org-self-insert-command is correct. For example, if I do the following:
> >
> > 1. Type some text at some location in an org-mode buffer
> > 2. Move to another location very far away
> > (without invoking any commands other than point motion)
> > 3. Type some more text
> >
> > then org-self-insert-cluster-for-undo collapses the undo changesets for
> > these two changes into one. Undoing then reverts both sets of changes at
> > once, even though those changes might be so far apart that they aren't
> > both visible at the same time in the buffer.
> >
> > That seems very undesirable to me.
>
> Having been involved in org-mode's collapsing code I am interested in
> this, but I cannot reproduce your problem. I used a very large org-mode
> file, inserted some text, moved down some pages and inserted some text
> again (3 chars each). Undoing was split between both parts, exactly as
> desired. Could you provide more details please?
Sure. The following steps produce the effect I described, at least for
me. This is on a fairly recent (a couple of weeks old) bzr build of
Emacs, and a similarly recent git build of org-mode:
1. $ emacs -Q
2. C-x C-f test.org
3. M-x org-mode [not really necessary since already in org-mode]
5. C-u 50 M-x newline
6. M-<
7. type "a"
8. M->
9. type "bc"
buffer-undo-list now contains:
(nil (52 . 54) (1 . 2) nil (1 . 51) (t . -1))
Note the lack of undo boundary between (52 . 54) and (1 . 2), which means
that undoing once (C-/) deletes both "bc" *and* "a" in one step.
HTH,
Toby
--
Dr T. S. Cubitt
Mathematics and Quantum Information group
Department of Mathematics
Complutense University
Madrid, Spain
email: tsc25@cantab.net
web: www.dr-qubit.org
next prev parent reply other threads:[~2012-07-03 9:57 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-24 21:27 bug#11774: org-mode causes undo boundaries to be lost Toby Cubitt
2012-06-24 21:39 ` Bastien
2012-06-24 21:52 ` Toby Cubitt
2012-06-25 11:35 ` Toby Cubitt
2012-07-02 6:51 ` bug#11774: [O] " Martin Pohlack
2012-07-03 9:57 ` Toby Cubitt [this message]
2012-07-03 15:18 ` Martin Pohlack
2012-07-03 17:29 ` Stefan Monnier
[not found] ` <jwvpq8coitq.fsf-monnier+emacs@gnu.org>
2012-07-03 18:13 ` bug#11774: [O] bug#11774: " Samuel Wales
2012-07-03 22:57 ` Stefan Monnier
2012-07-04 0:18 ` Samuel Wales
2012-07-04 0:24 ` bug#11774: [O] bug#11774: " Samuel Wales
2012-07-04 9:40 ` bug#11774: [O] " Toby Cubitt
2012-07-18 13:21 ` Stefan Monnier
[not found] ` <jwvpq7t1a4t.fsf-monnier+emacs@gnu.org>
2012-08-01 14:26 ` bug#11774: " Bastien
[not found] ` <CAJcAo8ux9Dw5Nu6x0jm59mWFaLWFG6SSeMs9dju-Jgy5nWkUcA@mail.gmail.com>
2014-11-03 14:35 ` bug#11774: [O] " Stefan Monnier
2012-07-03 18:33 ` bug#11774: [O] " Martin Pohlack
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