From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/41508 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: Arabic with LuaTeX vs. XeTeX Date: Tue, 10 Jun 2008 10:09:47 +0200 Message-ID: <484E36CB.4090100@wxs.nl> References: Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1213085488 26535 80.91.229.12 (10 Jun 2008 08:11:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 10 Jun 2008 08:11:28 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Tue Jun 10 10:12:10 2008 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by lo.gmane.org with esmtp (Exim 4.50) id 1K5yxd-0005Zl-E9 for gctc-ntg-context-518@m.gmane.org; Tue, 10 Jun 2008 10:12:09 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 6F4661FD16; Tue, 10 Jun 2008 10:11:11 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 13681-02-3; Tue, 10 Jun 2008 10:10:24 +0200 (CEST) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id A663D1FC7A; Tue, 10 Jun 2008 10:10:24 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 9A2AB1FC7A for ; Tue, 10 Jun 2008 10:10:22 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 13681-02-2 for ; Tue, 10 Jun 2008 10:09:47 +0200 (CEST) Original-Received: from mail.pragma-ade.net (dsl-083-247-100-017.solcon.nl [83.247.100.17]) by ronja.ntg.nl (Postfix) with ESMTP id 7BEBC1FC44 for ; Tue, 10 Jun 2008 10:09:47 +0200 (CEST) Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by controller-1 (SurgeMail 3.9e) with ESMTP id 11729-1840426 for ; Tue, 10 Jun 2008 10:09:47 +0200 User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) In-Reply-To: X-Originating-IP: 10.100.1.100 X-Authenticated-User: hagen@controller-1 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.9 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:41508 Archived-At: Idris Samawi Hamid wrote: > But at this stage of development, only pure OpenType fonts will be > supported out of the box. For example: Traditional Arabic, which comes > with XP, has OpenType tables but depends on Uniscribe instead of OpenType > for, eg, making marks exceptions to the contextual analysis. Since the > mark exception was not added to the GSUB table, voweled text appears > unjoined in Trad. Arabic processed by luaTeX. one problem there is that the open type spec is not always clear which in turn can mean that apps do things different or maybe even know how to deal with certain fonts; another problem is that there is no prescribed behaviour ... ok, some dtp app can claim that version n+3 supports this or that feature, or adapts automatically to this or that situations but if that's then the 'standard' there is no reason why version n+1 should not have supported it (or should have been tagged as bugged) > I suppose we (=Hans) could add some "spell-checking" to the otf analyzer, > but that's dangerous and needs some careful thought. Maybe we can come up > with various "spell-checking" options that could be turned on and off, so > that old-technology (Nadeem is 1998), platform-dependent (like Nadeem and > Trad. Ar.) fonts can be used. we can add all kind of checking and compensation and make them pseudo features and then have them enabled based on info that we keep in a font database (like .. this font lacks this or that and therefore we need to enable such or so; of this feature in font foo is bugged so we disable it) > In any case, we want to stay as platform-independent as possible. So for > AAT, we may need to wait at least till someone (maybe one of you?) can > come up with a spec so that we can implement a cross-platform solution for > AAT. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________