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Re: undo boundaries


From: Johan Bockgård
Subject: Re: undo boundaries
Date: Sat, 15 Mar 2008 13:25:20 +0100
User-agent: Gnus/5.110007 (No Gnus v0.7) Emacs/23.0.60 (gnu/linux)

Nikolaj Schumacher <n_schumacher@web.de> writes:

> I'm trying to use undo boundaries, but I'm unable to explain its
> behavior.
>
> For example:
>
> (defun test ()
>   (interactive)
>   (insert "a")
>   (undo-boundary)
>   (insert "b"))
>
> If I do M-x test, I get:
> ab
>   ^
>
> But if I undo once, I get:
> a
> ^
>
> What I was expecting:
> a
>  ^
>
> Is this a bug or is there a reason for this behavior?

A bug, IMO.  Emacs 21 does what you expect.

-- 
Johan Bockgård


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