From: Alan Mackenzie <acm@muc.de>
To: Chong Yidong <cyd@stupidchicken.com>
Cc: martin rudalics <rudalics@gmx.at>,
Stefan Monnier <monnier@iro.umontreal.ca>,
emacs-devel@gnu.org
Subject: Re: Emacs 22.2 release plans - request for a slight delay.
Date: Fri, 7 Mar 2008 23:24:50 +0000 [thread overview]
Message-ID: <20080307232450.GB4570@muc.de> (raw)
In-Reply-To: <87lk4vv3s5.fsf@stupidchicken.com>
Hi,!
On Thu, Mar 06, 2008 at 06:19:54PM -0500, Chong Yidong wrote:
> > I'm asking for a slight delay (perhaps over the weekend?) to fix a
> > serious bug in C mode, namely:
> > Visit lisp.h, go to the end of the buffer, and do
> > M-x RET c-beginning-of-defun RET
> > This is horrendously slow (~30 seconds).
> > I've just had a look at c-beginning-of-defun, and I've narrowed the
> > fault down to `c-in-knr-argdecl', where the code laboriously trundles
> > back one paren pair at a time until it finds a "}" (or BOB). This is
> > clearly suboptimal in a region with several hundred consecutive
> > declarations without brace-blocks. There are ~900 consecutive
> > paren-pairs in the tail of lisp.h.
> > So perhaps if I put the limit at 32, this will be safe for any
> > function not appearing in the Obfuscated C competition or
> > deliberately written to break editors. :-)
> > This will probably be a "quick and easy" change, taking, perhaps, an
> > hour. However, it's probably worth while doing it calmly and carefully.
> > ;-)
> [Alan later sent a patch to me off-list.]
> First off, could you check the patch into the trunk? Thanks.
Done, including a patch to cc-mode.texi.
--
Alan Mackenzie (Nuremberg, Germany).
prev parent reply other threads:[~2008-03-07 23:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-25 19:53 Emacs 22.2 release plans Chong Yidong
2008-03-05 17:25 ` Chong Yidong
2008-03-05 23:58 ` Kim F. Storm
2008-03-06 0:38 ` Glenn Morris
2008-03-06 11:19 ` Kim F. Storm
2008-03-06 15:16 ` Dan Nicolaescu
2008-03-06 15:51 ` Jason Rumney
2008-03-06 16:12 ` Dan Nicolaescu
2008-03-06 17:32 ` Stefan Monnier
2008-03-06 17:31 ` Stefan Monnier
2008-03-06 18:56 ` Chong Yidong
2008-03-07 10:55 ` Kim F. Storm
2008-03-06 22:38 ` Emacs 22.2 release plans - request for a slight delay Alan Mackenzie
2008-03-06 23:19 ` Chong Yidong
2008-03-07 7:25 ` Alan Mackenzie
2008-03-07 16:17 ` Chong Yidong
2008-03-07 23:15 ` Alan Mackenzie
2008-03-07 23:04 ` Chong Yidong
2008-03-07 23:33 ` Nick Roberts
2008-03-07 23:24 ` Alan Mackenzie [this message]
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