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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.pretest.bugs,gmane.emacs.gnus.general
Subject: Re: Slow operations on buffers of tens of megabytes
Date: Mon, 20 Nov 2006 07:59:32 -0500
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Original-To: Elias Oltmanns <oltmanns@uni-bonn.de>
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Archived-At: <http://permalink.gmane.org/gmane.emacs.gnus.general/64007>

    Without really knowing anything
    about emacs 23, I'm just curious to know if something like a generic
    mechanism to restrict pattern matching for heavily used functions like
    re-search-forward to some limitted case tables, e.g., the ASCII table,
    will be provided (if applicable, that is) by emacs.

Why would we why we want such a feature?  It is not needed to deal
with this problem, or any other problem I can recall.

Of course, you can always install your own case table.