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: Sun, 14 Dec 2014 06:06:42 +0100 Message-ID: <87tx0y2525.fsf@web.de> References: <681ec09d-d836-48c9-af1f-fb19bd8bae03@googlegroups.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1418533655 1862 80.91.229.3 (14 Dec 2014 05:07:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 14 Dec 2014 05:07:35 +0000 (UTC) Cc: gtr289@gmail.com To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Dec 14 06:07:28 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 1Y01Ox-0006Ti-K3 for geh-help-gnu-emacs@m.gmane.org; Sun, 14 Dec 2014 06:07:27 +0100 Original-Received: from localhost ([::1]:35032 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y01Ox-0005cJ-11 for geh-help-gnu-emacs@m.gmane.org; Sun, 14 Dec 2014 00:07:27 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:38913) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y01Of-0005c7-AN for help-gnu-emacs@gnu.org; Sun, 14 Dec 2014 00:07:16 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Y01OX-0003LT-S1 for help-gnu-emacs@gnu.org; Sun, 14 Dec 2014 00:07:09 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:36777) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y01OX-0003LM-LO for help-gnu-emacs@gnu.org; Sun, 14 Dec 2014 00:07:01 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Y01OT-0005a8-Rd for help-gnu-emacs@gnu.org; Sun, 14 Dec 2014 06:06:57 +0100 Original-Received: from ip-90-186-71-65.web.vodafone.de ([90.186.71.65]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 14 Dec 2014 06:06:57 +0100 Original-Received: from michael_heerdegen by ip-90-186-71-65.web.vodafone.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 14 Dec 2014 06:06:57 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 16 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: ip-90-186-71-65.web.vodafone.de User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) Cancel-Lock: sha1:5/AFA3N0hcsdWHr5sFjmJmBCd0I= 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:101560 Archived-At: Hello, > (add-hook 'post-command-hook > (function > (lambda () > (do-syntax)))) With this code, after you undo, `do-syntax' is called immediately and may add the text properties anew where the undo may have had removed them, so it is no surprise if you encounter a "loop" sometimes, I guess. BTW, what is the purpose of your code, and why is font-lock-mode not sufficient for your needs? Michael.