From: storm@cua.dk (Kim F. Storm)
Cc: emacs-devel@gnu.org
Subject: Re: New undo element (fun . args)
Date: Tue, 08 Feb 2005 13:53:58 +0100 [thread overview]
Message-ID: <m3u0onus9l.fsf@kfs-l.imdomain.dk> (raw)
In-Reply-To: <E1CyTpB-000056-UR@fencepost.gnu.org> (Richard Stallman's message of "Tue, 08 Feb 2005 06:46:33 -0500")
Richard Stallman <rms@gnu.org> writes:
> It turned out to be quite tricky to get the usage right as an apply
> function need to install a proper _redo_ entry which may not really do
> anything but re-install the original _undo_ entry etc.
>
> Ifr the extensible undo entry does some other nontrivial job,
> surely its redo entry should redo that nontrivial job, right?
> So how can it be that the redo entry only reinstalls the undo entry?
That was the tricky part :-)
It actually took me some time and deep thought to realize what
was (not) needed.
The cua undo stuff only deals with rectangle highlighting, so it only
makes sense to highlight anything when the rectangle data is actually
present/restored.
--
Kim F. Storm <storm@cua.dk> http://www.cua.dk
next prev parent reply other threads:[~2005-02-08 12:53 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-30 0:47 New undo element (fun . args) Kim F. Storm
2005-01-30 1:24 ` Miles Bader
2005-01-30 15:07 ` Stefan Monnier
2005-01-30 17:22 ` Kim F. Storm
2005-01-30 18:11 ` Kim F. Storm
2005-01-31 12:01 ` Richard Stallman
2005-01-31 13:02 ` Kim F. Storm
2005-01-31 22:53 ` Kim F. Storm
2005-02-02 7:28 ` Richard Stallman
2005-02-02 7:28 ` Richard Stallman
2005-02-02 14:35 ` Stefan Monnier
2005-02-02 15:41 ` Kim F. Storm
2005-02-03 19:13 ` Richard Stallman
2005-02-04 15:40 ` Kim F. Storm
2005-02-05 17:39 ` Richard Stallman
2005-02-07 8:23 ` Kim F. Storm
2005-02-07 20:51 ` Richard Stallman
2005-02-09 21:50 ` Kim F. Storm
2005-02-07 11:51 ` Kim F. Storm
2005-02-07 12:25 ` David Kastrup
2005-02-07 14:14 ` Stefan Monnier
2005-02-08 11:47 ` Richard Stallman
2005-02-08 11:46 ` Richard Stallman
2005-02-08 12:53 ` Kim F. Storm [this message]
2005-02-03 19:13 ` Richard Stallman
2005-01-31 0:19 ` Richard Stallman
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