From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Jason Rumney Newsgroups: gmane.emacs.bugs Subject: bug#10895: Quirky behaviours with Arabic text Date: Wed, 29 Feb 2012 22:54:41 +0800 Message-ID: <874nu9zo3y.fsf@gnu.org> References: <834nuckunm.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1330527423 15973 80.91.229.3 (29 Feb 2012 14:57:03 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 29 Feb 2012 14:57:03 +0000 (UTC) Cc: 10895@debbugs.gnu.org To: sergei karhof Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Feb 29 15:57:02 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 1S2kxd-0002BQ-4k for geb-bug-gnu-emacs@m.gmane.org; Wed, 29 Feb 2012 15:56:57 +0100 Original-Received: from localhost ([::1]:44443 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S2kxc-0003dm-Jw for geb-bug-gnu-emacs@m.gmane.org; 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Wed, 29 Feb 2012 06:54:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=sender:from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-type:content-transfer-encoding; bh=z7TyNiR69dhC7ZrVNr/0OouBMiPMVXskjxZqZW+xT2c=; b=H01bAcDy5eclqUwBD5ttHzjXuEoWx+B9V11tDPDILsXnwIvJZS6LbbqAh2wBx+mAS8 mp+NOLwclRnYv3pcKfH0c6O7usVTzMhOsfS7h6crsyqnBUBrpbGQ+DIaC4WxTIwNX/1d lc2LieW+zYEDE7tzX9lA1TrrImL7A/fYZ9W14= Original-Received: by 10.68.239.6 with SMTP id vo6mr5960284pbc.61.1330527289366; Wed, 29 Feb 2012 06:54:49 -0800 (PST) Original-Received: from home.jasonrumney.net ([180.75.243.43]) by mx.google.com with ESMTPS id z1sm18862095pbc.38.2012.02.29.06.54.45 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 29 Feb 2012 06:54:48 -0800 (PST) Original-Received: by home.jasonrumney.net (Postfix, from userid 1000) id BC78C256B; Wed, 29 Feb 2012 22:54:41 +0800 (MYT) In-Reply-To: (sergei karhof's message of "Tue, 28 Feb 2012 17:26:45 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.93 (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:57397 Archived-At: sergei karhof writes: > On Mon, Feb 27, 2012 at 7:17 PM, Eli Zaretskii wrote: > >> Sergei, could you please try invoking Emacs with the >> `-xrm Emacs.fontBackend:gdi' command-line argument, and see if the >> problem persists with the GDI backend? =C2=A0That's assuming that GDI at >> all supports Arabic shaping; I don't know enough about this to tell, >> sorry. > > I have just tried this, but it totally messes up the text, as you can > see from screenshot #5 here attached. I would expect that. The GDI font backend has no support for font shaping, which is definitely required for proper Arabic support. What I suspect is that Emacs is doing more in terms of supporting Arabic than the uniscribe shaping engine expects.