From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Chong Yidong Newsgroups: gmane.emacs.bugs Subject: bug#5984: Crash displaying composed characters Date: Sun, 07 Aug 2011 15:45:29 -0400 Message-ID: <874o1t80py.fsf@stupidchicken.com> References: <831vea5fjh.fsf@gnu.org> <83vdbm3udi.fsf@gnu.org> <83vdbi34u2.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1312746376 30188 80.91.229.12 (7 Aug 2011 19:46:16 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 7 Aug 2011 19:46:16 +0000 (UTC) Cc: 5984@debbugs.gnu.org, Andreas Schwab To: Juanma Barranquero Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Aug 07 21:46:10 2011 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([140.186.70.17]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Qq9IY-0008Jy-1I for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Aug 2011 21:46:10 +0200 Original-Received: from localhost ([::1]:46781 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qq9IX-00032B-Ky for geb-bug-gnu-emacs@m.gmane.org; Sun, 07 Aug 2011 15:46:09 -0400 Original-Received: from eggs.gnu.org ([140.186.70.92]:34832) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qq9IU-00030r-JP for bug-gnu-emacs@gnu.org; Sun, 07 Aug 2011 15:46:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qq9IT-0004f0-FO for bug-gnu-emacs@gnu.org; Sun, 07 Aug 2011 15:46:06 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:40463) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qq9IT-0004ev-83 for bug-gnu-emacs@gnu.org; Sun, 07 Aug 2011 15:46:05 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1Qq9JO-0001V3-It; Sun, 07 Aug 2011 15:47:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Chong Yidong Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Aug 2011 19:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 5984 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 5984-submit@debbugs.gnu.org id=B5984.13127463925719 (code B ref 5984); Sun, 07 Aug 2011 19:47:02 +0000 Original-Received: (at 5984) by debbugs.gnu.org; 7 Aug 2011 19:46:32 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Qq9Iu-0001UC-5l for submit@debbugs.gnu.org; Sun, 07 Aug 2011 15:46:32 -0400 Original-Received: from vm-emlprdomr-05.its.yale.edu ([130.132.50.146]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Qq9Ir-0001U4-Ry for 5984@debbugs.gnu.org; Sun, 07 Aug 2011 15:46:30 -0400 Original-Received: from furball (c-71-192-165-84.hsd1.ct.comcast.net [71.192.165.84]) (authenticated bits=0) by vm-emlprdomr-05.its.yale.edu (8.14.4/8.14.4) with ESMTP id p77JjTav022019 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Sun, 7 Aug 2011 15:45:30 -0400 In-Reply-To: (Juanma Barranquero's message of "Wed, 6 Jul 2011 04:28:38 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) X-Scanned-By: MIMEDefang 2.71 on 130.132.50.146 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Sun, 07 Aug 2011 15:47:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 1) X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:49941 Archived-At: Juanma Barranquero writes: > (Just pinging; the workaround was installed in 23.X, I think, but the > crash still happens in 24.0.50.) A change to autocmp_chars in the trunk undid the workaround. I've fixed that. As to the larger question of how to handle composition or redisplay functions that modify the buffer, I still don't see any good solution. Forbidding them from modifying buffers entirely is no good, because fontification functions need to be able to change text properties. I will, however, install a few additional ad-hoc fixes on the trunk to inhibit crashes like (put-text-property 1 10 'display '(height (progn (delete-region 1 10))))