From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#5977: 24.0.50; Lao HELLO is incorrectly displayed Date: Tue, 20 Apr 2010 12:06:33 +0300 Message-ID: <83fx2q5w86.fsf@gnu.org> References: <3A521851-F7CC-45DB-A2ED-8348EF96D5CF@Freenet.DE> Reply-To: Eli Zaretskii NNTP-Posting-Host: lo.gmane.org X-Trace: dough.gmane.org 1271755910 27024 80.91.229.12 (20 Apr 2010 09:31:50 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 20 Apr 2010 09:31:50 +0000 (UTC) Cc: 5977@debbugs.gnu.org To: Peter Dyballa Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Apr 20 11:31:48 2010 connect(): No such file or directory Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1O49nz-0000cJ-IU for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Apr 2010 11:31:43 +0200 Original-Received: from localhost ([127.0.0.1]:38198 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O49ny-00046A-NY for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Apr 2010 05:31:42 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O49lm-0002sb-KK for bug-gnu-emacs@gnu.org; Tue, 20 Apr 2010 05:29:26 -0400 Original-Received: from [140.186.70.92] (port=39532 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O49ll-0002ro-3k for bug-gnu-emacs@gnu.org; Tue, 20 Apr 2010 05:29:26 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O49lh-00033I-7j for bug-gnu-emacs@gnu.org; Tue, 20 Apr 2010 05:29:25 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:60740) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O49lh-00033E-5j for bug-gnu-emacs@gnu.org; Tue, 20 Apr 2010 05:29:21 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1O49Q6-0002r6-Cb; Tue, 20 Apr 2010 05:07:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: owner@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 20 Apr 2010 09:07:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 5977 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 5977-submit@debbugs.gnu.org id=B5977.127175440210969 (code B ref 5977); Tue, 20 Apr 2010 09:07:02 +0000 Original-Received: (at 5977) by debbugs.gnu.org; 20 Apr 2010 09:06:42 +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 1O49Pl-0002qs-Fc for submit@debbugs.gnu.org; Tue, 20 Apr 2010 05:06:41 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O49Pj-0002qn-5e for 5977@debbugs.gnu.org; Tue, 20 Apr 2010 05:06:40 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0L1600G002QT1A00@a-mtaout22.012.net.il> for 5977@debbugs.gnu.org; Tue, 20 Apr 2010 12:06:27 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([77.127.69.249]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0L1600DWP3YQ7M90@a-mtaout22.012.net.il>; Tue, 20 Apr 2010 12:06:27 +0300 (IDT) In-reply-to: <3A521851-F7CC-45DB-A2ED-8348EF96D5CF@Freenet.DE> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Tue, 20 Apr 2010 05:07:02 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) 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: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:36344 Archived-At: > From: Peter Dyballa > Date: Mon, 19 Apr 2010 22:50:11 +0200 > Cc: > > The Lao greetings are incorrectly rendered: Does the problem go away if you type M-: (setq bidi-display-reordering nil) RET ? > When I go forward or backward with the cursor keys in the greetings > (also in the header) the direction of cursor movement is reversed at > two or three spots. I don't see cursor movement reversal on MS-Windows. Can you tell what characters are those where it happens, e.g., by counting the number of C-f keystrokes from the beginning of the line? Anyway, the problem is known: Lao (as well as quite a few other scripts and display features in Emacs) use character compositions, and the bidi display does not yet handle composed characters correctly. I need Handa-san's help in figuring out how to make compositions work with bidi display, because I lack the necessary knowledge of how support for character compositions is designed and implemented, and the code is not documented enough, at least not for me, to figure that out on my own.