From: Barry OReilly <gundaetiapo@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 16818@debbugs.gnu.org
Subject: bug#16818: Acknowledgement (Undo in region after markers in undo history relocated)
Date: Wed, 12 Mar 2014 21:59:55 -0400 [thread overview]
Message-ID: <CAFM41H3gjuKz4joOw3eLRoNkbJ43Dh37Kvfhocv-zpkLO8BjHg@mail.gmail.com> (raw)
In-Reply-To: <jwvtxb39fia.fsf-monnier+emacsbugs@gnu.org>
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> Thinking more about this, I think this is fixing the symptom, but
> not the cause. The cause is that primitive-undo shouldn't blindly
> obey a (MARKER . OFFSET) entry. Instead it should only obey it if
> the marker still points at the corresponding place.
From what I can tell, the root cause is relocating markers to
unrelated locations in the buffer while another part of Emacs still
has a reference to it.
Your counter proposal is a step from the root. For instance, the
markers within the mark rings will not adjust correctly, whilst with
my patch they will.
I think your proposal sounds good nonetheless. I don't doubt there are
other markers that could get swept up into the undo history, become
relocated, and then annoy users of undo in region.
> (creating new markers each time instead)
My patch actually results in fewer markers created.
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next prev parent reply other threads:[~2014-03-13 1:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-19 22:15 bug#16818: Undo in region after markers in undo history relocated Barry OReilly
[not found] ` <handler.16818.B.13928481719895.ack@debbugs.gnu.org>
2014-02-19 23:07 ` bug#16818: Acknowledgement (Undo in region after markers in undo history relocated) Barry OReilly
2014-02-20 4:53 ` Stefan Monnier
2014-02-20 14:38 ` Barry OReilly
2014-02-24 22:46 ` Barry OReilly
2014-02-25 21:43 ` Stefan Monnier
2014-02-26 15:18 ` Barry OReilly
2014-03-11 21:24 ` Barry OReilly
2014-03-12 23:24 ` Stefan Monnier
2014-03-13 1:59 ` Barry OReilly [this message]
2014-03-13 13:24 ` Stefan Monnier
2014-03-13 14:35 ` Stefan Monnier
2014-03-13 16:55 ` Barry OReilly
2014-03-17 23:05 ` Barry OReilly
2014-03-18 0:02 ` Stefan
2014-03-19 13:36 ` Barry OReilly
2014-03-19 18:52 ` Stefan
2014-03-19 13:45 ` Barry OReilly
2014-03-19 18:56 ` Stefan
2014-03-23 22:49 ` Barry OReilly
2014-03-24 13:03 ` Stefan
2014-03-24 22:10 ` Barry OReilly
2014-03-25 1:28 ` Stefan
2014-03-25 2:32 ` Barry OReilly
2020-09-09 12:25 ` Lars Ingebrigtsen
2020-12-06 15:57 ` bug#16818: Undo in region after markers in undo history relocated Lars Ingebrigtsen
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