From: Luc Teirlinck <teirllm@dms.auburn.edu>
Subject: timers and undo
Date: Fri, 24 Dec 2004 16:32:15 -0600 (CST) [thread overview]
Message-ID: <200412242232.iBOMWFd16657@raven.dms.auburn.edu> (raw)
The way timers treat undo is really peculiar.
Do `emacs -q'. Then:
M-: (run-at-time 5 5 (lambda () (with-current-buffer "*scratch*"
(insert "aaaaaaa\n"))))
Wait till enough lines are inserted. C-/. The entire block of
inserted lines gets deleted all at once. This apparently causes
problems with undo-outer-limit as I pointed out before.
But there is more.
Wait until once more a bunch of lines are inserted. I now expected
that C-/ would get rid of these inserted lines once more. But no.
It deletes the introductory comment lines. The "aaaaaaa" lines
stay and they are impossible to undo after repaeting C-/
undo-more: No further undo information
It seems hard to consider this a deliberate "feature".
Sincerely,
Luc.
next reply other threads:[~2004-12-24 22:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-24 22:32 Luc Teirlinck [this message]
2004-12-27 4:09 ` timers and undo Richard Stallman
2004-12-27 22:33 ` Stefan Monnier
2004-12-29 4:04 ` Luc Teirlinck
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