GNU bug report logs - #4511
23.1; flyspell-mode slow editing near end of big html file

Previous Next

Package: emacs;

Reported by: Kevin Ryde <user42 <at> zip.com.au>

Date: Mon, 21 Sep 2009 22:35:10 UTC

Severity: normal

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

Full log

View this message in rfc822 format

From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Kevin Ryde <user42 <at> zip.com.au>
Cc: 4511 <at> debbugs.gnu.org, bug-gnu-emacs <at> gnu.org
Subject: bug#4511: 23.1; flyspell-mode slow editing near end of big html file
Date: Tue, 22 Sep 2009 17:40:03 -0400

> I track the slowness to where `sgml-mode-flyspell-verify' does

>     (looking-back "<[^>\n]*")

> I take it this func is asking whether point is within a <tag> or not.
> Does that regexp end up asking re-search-backward to consider every "<"
> in the buffer or something, before deciding no match is possible?

Yes, looking-back is a dog.  You need to pass it a `limit' argument.
I think the `limit' argument should be mandatory.


        Stefan
This bug report was last modified 15 years and 185 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.