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#20173: 24.4; Rendering misallocates combining marks on ligatures Date: Mon, 23 Mar 2015 17:38:52 +0200 Message-ID: <83wq27raer.fsf@gnu.org> References: <20150323010626.530d3395@JRWUBU2> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Trace: ger.gmane.org 1427125288 5714 80.91.229.3 (23 Mar 2015 15:41:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 23 Mar 2015 15:41:28 +0000 (UTC) Cc: 20173@debbugs.gnu.org To: Richard Wordingham Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 23 16:41:16 2015 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 1Ya4TY-00079M-H2 for geb-bug-gnu-emacs@m.gmane.org; Mon, 23 Mar 2015 16:41:12 +0100 Original-Received: from localhost ([::1]:56687 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ya4TX-0006y7-To for geb-bug-gnu-emacs@m.gmane.org; Mon, 23 Mar 2015 11:41:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:58584) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ya4TT-0006ua-Dd for bug-gnu-emacs@gnu.org; Mon, 23 Mar 2015 11:41:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ya4TP-0004Z7-EU for bug-gnu-emacs@gnu.org; Mon, 23 Mar 2015 11:41:07 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:44206) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ya4TP-0004Z3-Bd for bug-gnu-emacs@gnu.org; Mon, 23 Mar 2015 11:41:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Ya4TO-0002Qv-Nm for bug-gnu-emacs@gnu.org; Mon, 23 Mar 2015 11:41:03 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 23 Mar 2015 15:41:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20173 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20173-submit@debbugs.gnu.org id=B20173.14271252079282 (code B ref 20173); Mon, 23 Mar 2015 15:41:02 +0000 Original-Received: (at 20173) by debbugs.gnu.org; 23 Mar 2015 15:40:07 +0000 Original-Received: from localhost ([127.0.0.1]:33982 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Ya4SU-0002Pd-J4 for submit@debbugs.gnu.org; Mon, 23 Mar 2015 11:40:07 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:43746) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Ya4SR-0002P4-Q1 for 20173@debbugs.gnu.org; Mon, 23 Mar 2015 11:40:04 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0NLO004008LYWO00@a-mtaout20.012.net.il> for 20173@debbugs.gnu.org; Mon, 23 Mar 2015 17:39:06 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NLO0045V8T5VC20@a-mtaout20.012.net.il>; Mon, 23 Mar 2015 17:39:06 +0200 (IST) In-reply-to: <20150323010626.530d3395@JRWUBU2> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x 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:100838 Archived-At: > Date: Mon, 23 Mar 2015 01:06:26 +0000 > From: Richard Wordingham > > When a ligature of two base characters has two combining marks on the > first component but none on the second, the second combining mark is > rendered as though it applied to the second component. A good example > is the Arabic sequence لَّا (lam, shadda, fatha, alef - U+064E, U+0627), where the shadda is rendered on the lam part of > lam-alif ligature and the fatha on the alif part. This problem is not > restricted to right-to-left scripts; I encountered the problem when > debugging left-to-right rendering. Lam-alif is one of the most > reliably generated ligatures bearing marks on different components. Is it possible that some rule(s) are missing from the end of lisp/language/misc-lang.el? Could you please take a look and see if something needs to be fixed/added in how we set up the compositions for Arabic? Thanks.