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

From: Davis Herring
Subject: Re: `save-excursion' defeated by `set-buffer'
Date: Mon, 4 Jan 2010 09:08:53 -0800 (PST)
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> save-excursion only saves point in the current buffer, so
>    (save-excursion (set-buffer foo) (goto-char (point-min)))
> will move point in foo and the point-saving done by save-excursion is
> useless.  So either you want to use

If we know that (eq foo (current-buffer)), we should drop the
`set-buffer'.  If we know that not to be the case, we should use
`with-current-buffer' (or perhaps `save-current-buffer').  But what if it
could but needn't be?


This product is sold by volume, not by mass.  If it appears too dense or
too sparse, it is because mass-energy conversion has occurred during

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