From: Stefan Monnier <monnier@iro.umontreal.ca>
Subject: Re: undo an undo
Date: Wed, 26 May 2004 18:26:38 GMT [thread overview]
Message-ID: <jwv4qq3ujy5.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: mailman.7092.1085432180.1061.help-gnu-emacs@gnu.org
> It might be better to point out that the undo history is not a stack;
Indeed, it's more like a tree, in the sense that when you undo something you
go back towards the root and future changes will be recorded as a new
branch. But since the undo itself is a change, it is also recorded in the
tree at the tip of the current branch. So you really get a big ugly
directed acyclic graph.
Stefan
next prev parent reply other threads:[~2004-05-26 18:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.7092.1085432180.1061.help-gnu-emacs@gnu.org>
2004-05-25 9:58 ` undo an undo Mathias Dahl
2004-05-26 18:26 ` Stefan Monnier [this message]
2004-05-24 16:23 Joel Smith
2004-05-24 16:48 ` David Kastrup
2004-05-24 17:03 ` Paul D. Smith
2004-05-24 18:04 ` Peter Gjefle
2004-05-24 18:24 ` Drew Adams
2004-05-24 20:21 ` Micha Feigin
[not found] ` <mailman.7135.1085440202.1061.help-gnu-emacs@gnu.org>
2004-05-26 18:21 ` Stefan Monnier
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