From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#11073: 24.0.94; BIDI-related crash in redisplay with certain byte sequences Date: Tue, 03 Apr 2012 21:17:16 -0400 Message-ID: References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1333502271 28665 80.91.229.3 (4 Apr 2012 01:17:51 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 4 Apr 2012 01:17:51 +0000 (UTC) Cc: 11073@debbugs.gnu.org To: Kenichi Handa Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Apr 04 03:17:50 2012 Return-path: Envelope-to: geb-bug-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 1SFEr5-0002aI-8i for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Apr 2012 03:17:47 +0200 Original-Received: from localhost ([::1]:38571 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFEr1-0006AT-Bl for geb-bug-gnu-emacs@m.gmane.org; Tue, 03 Apr 2012 21:17:43 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:46026) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFEqy-0006A6-EP for bug-gnu-emacs@gnu.org; Tue, 03 Apr 2012 21:17:41 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SFEqv-0007Vd-Lr for bug-gnu-emacs@gnu.org; Tue, 03 Apr 2012 21:17:39 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:42100) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SFEqv-0007VZ-Ig for bug-gnu-emacs@gnu.org; Tue, 03 Apr 2012 21:17:37 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1SFErJ-0001Hu-NO for bug-gnu-emacs@gnu.org; Tue, 03 Apr 2012 21:18:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 04 Apr 2012 01:18:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 11073 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 11073-submit@debbugs.gnu.org id=B11073.13335022674928 (code B ref 11073); Wed, 04 Apr 2012 01:18:01 +0000 Original-Received: (at 11073) by debbugs.gnu.org; 4 Apr 2012 01:17:47 +0000 Original-Received: from localhost ([127.0.0.1]:38638 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SFEr5-0001HR-Fh for submit@debbugs.gnu.org; Tue, 03 Apr 2012 21:17:47 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.183]:44112) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1SFEr0-0001HH-KO for 11073@debbugs.gnu.org; Tue, 03 Apr 2012 21:17:46 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AicFAKU/KE9FpZV7/2dsb2JhbACBX5x7eYhwnhmGGQSbGYQJ X-IronPort-AV: E=Sophos;i="4.73,1,1325480400"; d="scan'208";a="171906012" Original-Received: from 69-165-149-123.dsl.teksavvy.com (HELO pastel.home) ([69.165.149.123]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 03 Apr 2012 21:17:17 -0400 Original-Received: by pastel.home (Postfix, from userid 20848) id E129959388; Tue, 3 Apr 2012 21:17:16 -0400 (EDT) In-Reply-To: (Kenichi Handa's message of "Wed, 04 Apr 2012 09:07:02 +0900") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.94 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) 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:58497 Archived-At: >> But isn't this (unify-charset 'big5 "MyBig5.map") performed in the .emacs? > Usually yes. But, in that case, if .emacs is encoded in > Big5 and it contains some Big5 PUA chars, they are not > unified while loading .emacs. Hmm... that doesn't sound like it would be a very common problem, but it's not completely hypothetical either. Would this problem also come up in a BIG5 locale? If not, then I think we can ignore this problem. >> Is it really important to support adding unification rules >> after decoding took place? If so, why? > As I wrote, I can't tell how important it is. It may be very > important for those (but I guess very few) who need the above > operation, but not important for the majority. > I'm ok to remove such a feature if the maintainers decide that. The problem with it is that it costs all the time for everyone, and it makes the behavior of some macros subtly more complex/different and hence adds a nasty complexity. So if at all possible, I'd rather find a way to remove it (not for 24.1, obviously). >> And also, what about removing unification rules after decoding? > When one tells Emacs to unify some chars, and then reads a file > containing those chars, there's no way to dis-unify them. But I guess this problem is even much less common. Stefan