From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/41611 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: Rendering of ZWNJ and ZWJ Date: Thu, 12 Jun 2008 16:06:33 +0200 Message-ID: <48512D69.1080408@wxs.nl> References: <20080609014253.GA8898@khaled-laptop> <484D5006.6060700@wxs.nl> <20080612135545.GB8400@khaled-laptop> 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 1213279700 30206 80.91.229.12 (12 Jun 2008 14:08:20 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 12 Jun 2008 14:08:20 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Thu Jun 12 16:09:03 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 1K6nTi-0000EM-Hy for gctc-ntg-context-518@m.gmane.org; Thu, 12 Jun 2008 16:08:38 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id EEE941FC43; Thu, 12 Jun 2008 16:07:48 +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 23557-03-24; Thu, 12 Jun 2008 16:07:12 +0200 (CEST) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 2ADEA1FCB7; Thu, 12 Jun 2008 16:07:12 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 8551A1FCB7 for ; Thu, 12 Jun 2008 16:07:10 +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 26359-01-11 for ; Thu, 12 Jun 2008 16:06:36 +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 D58E11FC66 for ; Thu, 12 Jun 2008 16:06:36 +0200 (CEST) Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by controller-1 (SurgeMail 3.9e) with ESMTP id 12317-1840426 for ; Thu, 12 Jun 2008 16:06:36 +0200 User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) In-Reply-To: <20080612135545.GB8400@khaled-laptop> 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:41611 Archived-At: Khaled Hosny wrote: > On Mon, Jun 09, 2008 at 06:32:13PM -0600, Idris Samawi Hamid wrote: >> Hi Hans, >> >> On Mon, 09 Jun 2008 09:45:10 -0600, Hans Hagen wrote: >> >>> Khaled Hosny wrote: >>>> Using Luatex engine, ZWNJ and ZWJ chars are rendered incorrectly. If the >>>> font has a glyph for it, it does the expected behaviour (force >>>> non-joining or joining respectively) but the glyph get rendered while it >>>> shouldn't. But if the font has no glyphs for it, it has no effect at >>>> all. See the attached example. >>> i uploaded a beta >>> >>> after analyzing i now remove the joiners >> Not sure if this is the best approach: >> >> Despite what MS Typography says, I think it's important to maintain the >> joiner info after analysis. If I select text from a pdf, the joiner info >> should be there. This is important for, eg, switching from Arabic-language >> to Farsi-language typography. So If I select some pdf text formatted >> according to Farsi rules, I should be able to save that text with the >> rules included. >> >> Can this be made an option, so fonts that contain zwj zwnj are not >> affected? > > Well, I've very little ConTeXt knowledge to actually understand this. My > main point was that non-printable formatting characters like ZWNJ, ZWJ > should be font independent i.e. when I insert a ZWNJ it inhibits the > joining of Arabic letters without being printed, the font having or not > having a glyph for it shouldn't affect this. In the other hand, it > should be their so that when I copy the text I get it (since it is part > of the input and has semantical value). > > Is this what we have here? i made them font independent in the sense that they need not be present in the font; however, the rendering is optional ----------------------------------------------------------------- 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 ___________________________________________________________________________________