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Re: undoing changes automatically

From: Roland Winkler
Subject: Re: undoing changes automatically
Date: Wed, 9 Jan 2008 11:11:47 +0100

On Wed Jan 9 2008 Roland Winkler wrote:
> On Wed Jan 9 2008 Stefan Monnier wrote:
> > I guess the message means that cancel-change-group couldn't find the
> > path (through undo entries) going from the current state to the
> > original state.  More specifically, it means that the current undo-log
> > does not contains as one of its nthcdr the head of the original
> > undo logs.  That might be the case if the changes to undo are too
> > numerous and the undo-log has been truncated to the point where the
> > undo-info needed to revert the change are not present any more.
> I thought of something like this, though I couldn't phrase it as
> nicely and accurately as you did it  :-)

If all this is true, and it is necessary to keep the error message
of cancel-chance-group in the code, then I'd be glad if this error
message could be replaced by something that is more transparent for
the average emacs user. I do not know what I could do with it except
for bringing it up here.


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