Received: from mx0.gmx.net (mx0.gmx.net [213.165.64.100]) by h1439878.stratoserver.net (8.14.2/8.14.2/Debian-2build1) with SMTP id o1AFgjMd015780 for ; Wed, 10 Feb 2010 16:42:46 +0100 Received: (qmail 17878 invoked by alias); 10 Feb 2010 15:42:40 -0000 Delivered-To: GMX delivery to rainer.schoepf@gmx.net Received: (qmail invoked by alias); 10 Feb 2010 15:42:39 -0000 Received: from relay2.uni-heidelberg.de (EHLO relay2.uni-heidelberg.de) [129.206.210.211] by mx0.gmx.net (mx052) with SMTP; 10 Feb 2010 16:42:39 +0100 Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id o1AFdhWX011741 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 10 Feb 2010 16:39:43 +0100 Received: from listserv.uni-heidelberg.de (localhost.localdomain [127.0.0.1]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id o1A9akRW013381; Wed, 10 Feb 2010 16:39:41 +0100 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 16.0) with spool id 398513 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Wed, 10 Feb 2010 16:39:41 +0100 Received: from relay.uni-heidelberg.de (relay.uni-heidelberg.de [129.206.100.212]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id o1AFdf8K021584 for ; Wed, 10 Feb 2010 16:39:41 +0100 Received: from ueamailgate02.uea.ac.uk (ueamailgate02.uea.ac.uk [139.222.131.185]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id o1AFdWZo029850 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 10 Feb 2010 16:39:36 +0100 Received: from ueams01.uea.ac.uk (ueams01.uea.ac.uk [139.222.131.78]) by ueamailgate02.uea.ac.uk (8.13.1/8.13.1) with ESMTP id o1AFdVhs032277 for ; Wed, 10 Feb 2010 15:39:31 GMT Received: from [139.222.202.115] by ueams01.uea.ac.uk with esmtp (Exim 4.69) (envelope-from ) id 1NfEf5-00066H-OV for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Wed, 10 Feb 2010 15:39:31 +0000 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 MIME-Version: 1.0 References: <4B727378.8060704@morningstar2.co.uk> <20100210100943.GA3759@oberdiek.my-fqdn.de> <4B7298D6.7080206@morningstar2.co.uk> <20100210145258.GA18188@oberdiek.my-fqdn.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Canit-CHI2: 0.00 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN, outgoing) X-CanItPRO-Stream: UEA:outgoing (inherits from UEA:default,base:default) X-Canit-Stats-ID: 42323234 - 1f354e55f979 X-Scanned-By: MIMEDefang 2.63 on 85.214.41.38 X-Scanned-By: CanIt (www . roaringpenguin . com) on 139.222.131.185 Message-ID: <4B72D339.5080104@morningstar2.co.uk> Date: Wed, 10 Feb 2010 15:39:37 +0000 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Joseph Wright Subject: Re: String module To: LATEX-L@listserv.uni-heidelberg.de In-Reply-To: <20100210145258.GA18188@oberdiek.my-fqdn.de> Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: X-GMX-Antispam: 0 (Mail was not recognized as spam); Detail=5D7Q89H36p4WX0t+AtsdW2ORvUlAfcdSq7Ahyg4C/fk7uuW7VuLVQU/9lW10ossSgiooH lxSHbEnX0oJ57xI6MWoyO+U9X92yZOpkaZBGwux19dyx28hhIBPaGBT3JMH+WjPiOw1JwWxORN4h 5n0fQ==V1; X-Resent-By: Forwarder X-Resent-For: rainer.schoepf@gmx.net X-Resent-To: rainer@rainer-schoepf.de Status: R X-Status: X-Keywords: X-UID: 6237 On 10/02/2010 14:52, Heiko Oberdiek wrote: > If an expandable version is not an issue, then \pdfstrcmp > can be implemented in virgin TeX. If the input of \pdfstrcmp > consists of `other' and perhaps `space' tokens, then > even an expandable version can be simulated. The main problem > is AFAIK the conversion of a general token list to the string > representation in an expandable way (that means without > having \edef). What happens at present is more or less that: \tl_if_eq:nn(TF) uses \pdfstrcmp if available and a non-expandable version otherwise. -- Joseph Wright