From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: Problem Undoing Text Properties In Gnu Emacs 24, Is this a bug? Date: Tue, 16 Dec 2014 13:51:42 +0100 Message-ID: <87zjanrc4h.fsf@web.de> References: <681ec09d-d836-48c9-af1f-fb19bd8bae03@googlegroups.com> <524e52f9-4022-4bb0-bc1e-bf672dd1e9ff@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1418734355 4016 80.91.229.3 (16 Dec 2014 12:52:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 16 Dec 2014 12:52:35 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Dec 16 13:52:28 2014 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Y0rc3-0000q2-T5 for geh-help-gnu-emacs@m.gmane.org; Tue, 16 Dec 2014 13:52:28 +0100 Original-Received: from localhost ([::1]:44446 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y0rc3-0002eR-HN for geh-help-gnu-emacs@m.gmane.org; Tue, 16 Dec 2014 07:52:27 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:45137) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y0rbi-0002eB-Tp for help-gnu-emacs@gnu.org; Tue, 16 Dec 2014 07:52:14 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Y0rba-00079c-Pm for help-gnu-emacs@gnu.org; Tue, 16 Dec 2014 07:52:06 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:43611) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y0rba-00079G-IS for help-gnu-emacs@gnu.org; Tue, 16 Dec 2014 07:51:58 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Y0rbZ-0000Yg-21 for help-gnu-emacs@gnu.org; Tue, 16 Dec 2014 13:51:57 +0100 Original-Received: from ip-90-187-247-9.web.vodafone.de ([90.187.247.9]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 16 Dec 2014 13:51:57 +0100 Original-Received: from michael_heerdegen by ip-90-187-247-9.web.vodafone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 16 Dec 2014 13:51:57 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 23 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip-90-187-247-9.web.vodafone.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:xFdQ1Ymz5HMq1vADkB3O/LYB+7E= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:101601 Archived-At: gtr289@gmail.com writes: > The reason I use it is because I've noticed performance issues with > font-lock-mode on large C/C++ files (which I have some huge > ones). I don't use C or C++. Maybe the issues have been fixed in the meantime. If performance is still a problem and you can reproduce it with some files, maybe file a bug report. > Perhaps I will re-visit font-lock-mode again when I have some time. If > it can be configured to highlight only comments with good performance, > I would want to head in that directions.. You would probably need to redefine `font-lock-defaults' variable to do that. Have a look at the `c-font-lock-keywords' related stuff in "cc-fonts.el". Regards, Michael.