From: Andreas Politz <politza@fh-trier.de>
To: help-gnu-emacs@gnu.org
Subject: 2 questions about undo-list
Date: Sat, 24 Jan 2009 18:45:22 +0100 [thread overview]
Message-ID: <1232819186.176293@arno.fh-trier.de> (raw)
Hello !
1. I want to transparently remove whitespace
from the end of the lines before saving a buffer.
By `transparently' I mean without it disturbing
the undo mechanism.
I tried
(let (buffer-undo-list)
(replace-regexp ...))
in a before-save-hook, but it _does_ mess up the
undo history. How should I do this ? (Too much to ask ?)
2. self-insert-commands enter the undo-list in packs a 20
chars or so (=> (info "(elisp)Undo") ). Is this kind of
grouping possible for other commands as well ? Kind of
like the opposite of undo-boundary.
Thanks,
-ap
next reply other threads:[~2009-01-24 17:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-24 17:45 Andreas Politz [this message]
2009-01-24 20:54 ` 2 questions about undo-list Peter Dyballa
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