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Re: C and Emacs Lisp code parts

From: Alan Mackenzie
Subject: Re: C and Emacs Lisp code parts
Date: Fri, 1 Jul 2016 18:57:04 +0000
User-agent: Mutt/1.5.24 (2015-08-30)

Hello, Andreas.

On Fri, Jul 01, 2016 at 08:31:11PM +0200, Andreas Röhler wrote:

> On 01.07.2016 19:55, Alan Mackenzie wrote:
> > On Fri, Jul 01, 2016 at 07:36:23PM +0200, Andreas Röhler wrote:

> > My own feeling is that font-lock.el works fast enough

> That was only an example for displayed-related stuff in Emacs Lisp.

> If there is no problem with font-lock and updating buffers after change 
> etc., the better.
> So my impression, a remarkable amount of reports deal with slowness of 
> display/re-display were wrong.

There have been quite a lot of (justified) complaints about the slowness
of C Mode's redisplay.  These wouldn't be helped by rewriting
font-lock.el as font-lock.c.  They might be helped by rewriting parts of
CC Mode in C.  This has already been suggested (by Eli), but hasn't been
explored in any great detail, as yet.

Alan Mackenzie (Nuremberg, Germany).

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