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From: Juanma Barranquero <lektu@terra.es>
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Subject: Re: file-expand-wildcards should use `save-match-data'
Date: Tue, 26 Mar 2002 10:08:56 +0100
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On Mon, 25 Mar 2002 17:27:33 -0500, Michael Ernst <mernst@alum.mit.edu> wrote:

> In Emacs 21.2, file-expand-wildcards can cause problems in code that calls
> it, because it changes the match-data.  This patch corrects the problem.

Please, see the thread starting on:

http://mail.gnu.org/pipermail/emacs-devel/2002-February/006028.html

Consensus seems to be that user code shouldn't trust the save-match-data
to be consistent across function invocations, unless they're basic
primitives or "functions that have the spirit of a general-purpose
facility". (FWIW, I don't know if file-expand-wildcards matchs that
definition :)


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