Re: `save-excursion' defeated by `set-buffer'

[Andreas Röhler]

Am 11.03.2011 10:54, schrieb David Kastrup:
> Andreas Röhler<andreas.roehler@easy-emacs.de>  writes:
>
> > Maybe let's put the question another way:
> >
> > is there an example, where save-excursion will fail, ie not restore
> > the buffer due to a set-buffer afterwards?
>
> No.  It will restore buffer, point and mark, in that order.  It is never
> defeated.  What _may_ be defeated is an excursion happening within the
> scope of `set-buffer' because restoring buffer will in some instances
> restore to the same buffer before restoring point and mark.

Hmm, isn't it just the task of save-excursion to defeat an inner set-buffer?

A legal defeat so to say...

Or with other words: save-excursion must not restore if no danger buffer 
being set otherwise meanwhile.

So the warning is just nonsense?

Andreas