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Re: Slow fontification in C mode buffers

From: Geoff Gole
Subject: Re: Slow fontification in C mode buffers
Date: Thu, 22 Dec 2011 00:48:53 +0800

> If you're running GNU Emacs, an optimisation was introduced in Emacs
> 23.3 which gave a considerable speed-up to such code.  This optimisation
> found its way into the XEmacs CC Mode package in September.  I _hope_
> your version of Emacs is prior to one of these, in which case upgrading
> will give you this benefit.
> Otherwise, I'll be asking you if you're prepared to give me some
> timings.

Well, M-x version gives me GNU Emacs (i686-pc-linux-gnu,
GTK+ Version 2.12.12) of 2011-11-18, and cc-defs.el has c-version at

I'd be happy to produce timings. What do you need?

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