* 2 questions about undo-list
@ 2009-01-24 17:45 Andreas Politz
2009-01-24 20:54 ` Peter Dyballa
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Politz @ 2009-01-24 17:45 UTC (permalink / raw)
To: help-gnu-emacs
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
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2009-01-24 17:45 2 questions about undo-list Andreas Politz
2009-01-24 20:54 ` Peter Dyballa
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