From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/71987 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: xml and lua again Date: Fri, 28 Oct 2011 13:42:08 +0200 Message-ID: <4EAA9510.6000000@wxs.nl> References: <4EA2F34E.6080202@uni-bonn.de> <4EA53B44.1040105@wxs.nl> <4EA55792.9090408@uni-bonn.de> <4EA5598A.4060109@wxs.nl> <4EA599BE.2050304@uni-bonn.de> <4EA5B2F2.2050700@wxs.nl> <4EA684D9.2040702@uni-bonn.de> <4EA68CB4.30809@wxs.nl> <4EA68F04.4090706@uni-bonn.de> <4EA9231F.6080001@uni-bonn.de> <4EA93348.6030308@uni-bonn.de> <4EA93AE0.2000805@wxs.nl> <4EAA4A61.4090707@uni-bonn.de> <83BD5F74-4BB7-41D2-9C1E-F5F31084E6AC@gundla.ch> <4EAA51D6.3050909@uni-bonn.de> <4EAA6E5A.8010606@wxs.nl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1319802151 12754 80.91.229.12 (28 Oct 2011 11:42:31 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 28 Oct 2011 11:42:31 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Fri Oct 28 13:42:27 2011 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RJkpN-0007wI-6N for gctc-ntg-context-518@m.gmane.org; Fri, 28 Oct 2011 13:42:25 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 66948CB0BB; Fri, 28 Oct 2011 13:42:24 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id BuFqVKBC2TYR; Fri, 28 Oct 2011 13:42:20 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id A351DCB0B2; Fri, 28 Oct 2011 13:42:20 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 5819DCB0B2 for ; Fri, 28 Oct 2011 13:42:19 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id cZm3UpSa9UEP for ; Fri, 28 Oct 2011 13:42:17 +0200 (CEST) Original-Received: from filter2-ams.mf.surf.net (filter2-ams.mf.surf.net [192.87.102.70]) by balder.ntg.nl (Postfix) with ESMTP id 6258DCB0AF for ; Fri, 28 Oct 2011 13:42:17 +0200 (CEST) Original-Received: from smtp.ziggozakelijk.nl (D57D1DA2.static.ziggozakelijk.nl [213.125.29.162]) by filter2-ams.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id p9SBgEK4031463 for ; Fri, 28 Oct 2011 13:42:17 +0200 X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=10.100.1.100; Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by pragma-net.nl (SurgeMail 5.3h2) with ESMTP (TLS) id 2125-1713362 for multiple; Fri, 28 Oct 2011 13:42:12 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 In-Reply-To: X-Authenticated-User: hagen@controller-9 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=213.125.29.162; country=NL; region=11; city=Den Haag; latitude=52.0833; longitude=4.3000; http://maps.google.com/maps?q=52.0833,4.3000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0rFObGepP - 793c3812c776 - 20111028 X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.70 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 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 Xref: news.gmane.org gmane.comp.tex.context:71987 Archived-At: > i.e it's a Lua number -- a floating point. > So a kind of conversion can happen between a floating point and a sp > number (which has a limited range) > Of course Lua has its routines, but probably they differs from TeX > If I recall correctly, both use 32 bits, but if you extend to lets say > 48 bit then the TeX routines are not good anymore. > > Well, I'm not sure it's right, of course. The lua numbers have enough precision to cast on the tex numbers (with rounding) but in practice I don't care too much. As we have standardized floats the behaviour is predictable. We could probably go completely float at the tex end but too many datastructures expect an integer so it's not worth the trouble. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________