Received: from mail.proteosys.com ([213.139.130.197]) by nummer-3.proteosys with Microsoft SMTPSVC(6.0.3790.1830); Tue, 15 Nov 2005 10:33:43 +0100 Received: by mail.proteosys.com (8.12.10/8.12.2) with ESMTP id jAF9Xe5g017800 for ; Tue, 15 Nov 2005 10:33:41 +0100 Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94]) by relay.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id jAF9T323005586 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 15 Nov 2005 10:29:04 +0100 Received: from listserv.uni-heidelberg.de (listserv.uni-heidelberg.de [129.206.100.94]) by listserv.uni-heidelberg.de (8.13.1/8.13.1) with ESMTP id jAF303Vq028447; Tue, 15 Nov 2005 10:28:26 +0100 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 14.3) with spool id 841832 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Tue, 15 Nov 2005 10:28:26 +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 jAF9SQ3s028663 for ; Tue, 15 Nov 2005 10:28:26 +0100 Received: from leia.fdn.fr (ns0.fdn.org [80.67.169.12]) by relay.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id jAF9SKPo005404 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Tue, 15 Nov 2005 10:28:23 +0100 Received: from leia.fdn.fr (uucp@localhost [127.0.0.1]) by leia.fdn.fr (8.13.3/8.13.3/FDN) with ESMTP id jAF9SDxY031557 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Tue, 15 Nov 2005 10:28:13 +0100 Received: (from uucp@localhost) by leia.fdn.fr (8.13.3/8.13.3/Submit) with UUCP id jAF9SDvm031548 for latex-l@listserv.uni-heidelberg.de; Tue, 15 Nov 2005 10:28:13 +0100 Received: from localhost (edgard.fdn.fr [127.0.0.1]) by edgard.edgard.dyn.fdn.fr (Postfix) with ESMTP id F371D1FC022 for ; Tue, 15 Nov 2005 10:23:15 +0100 (CET) Received: from edgard.edgard.dyn.fdn.fr ([127.0.0.1]) by localhost (edgard [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 03146-04 for ; Tue, 15 Nov 2005 10:23:11 +0100 (CET) Received: by edgard.edgard.dyn.fdn.fr (Postfix, from userid 501) id 9E6FB89814D; Tue, 15 Nov 2005 10:23:11 +0100 (CET) References: <88ED1D30-FF25-423D-B73B-485982A3CB69@guerilla.net.au> <5.1.0.14.0.20051110085835.024b6700@pop3.web.de> <20051110100945.GA3265@m0A023274.vpn.uni-freiburg.de> <17267.14888.849329.473348@isostar.informatik.uni-stuttgart.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.11 X-Virus-Scanned: by amavisd-new-20030616-p10 at edgard.fdn.fr Message-ID: <20051115092311.GB6119@edgard.fdn.fr> Date: Tue, 15 Nov 2005 10:23:11 +0100 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Benjamin BAYART Subject: Re: LaTeX3 access, pdfTeX extensions, &c. To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE In-Reply-To: Precedence: list X-ProteoSys-SPAM-Score: 0 () X-Scanned-By: MIMEDefang at proteosys.com Return-Path: owner-latex-l@LISTSERV.UNI-HEIDELBERG.DE X-OriginalArrivalTime: 15 Nov 2005 09:33:47.0392 (UTC) FILETIME=[ADD22000:01C5E9C7] Status: R X-Status: X-Keywords: X-UID: 4896 Le Tue, Nov 15, 2005 at 10:51:30AM +1030, Will Robertson: > > So we get ... (other "1") (cseq "\previouslet") (cseq "\test") > and end up with the equivalent of \let\test=1 . > > Ohhh, but I think I get it now. This is no more useful than actually > looking at nodes, since anything that survives to be \previouslet > will be turned into a node anyway. Yes. It's more clearly seen with: \hbox{a}\previouslet\test What is \test? The right brace? The box? The box is not a token any more. So we have to keep on that: - look ahead for tokens - look backward for nodes. Regards, Benjamin.