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 o8KACERZ013605 for ; Mon, 20 Sep 2010 12:12:16 +0200 Received: (qmail 18567 invoked by alias); 20 Sep 2010 10:12:09 -0000 Delivered-To: GMX delivery to rainer.schoepf@gmx.net Received: (qmail invoked by alias); 20 Sep 2010 10:12:09 -0000 Received: from relay2.uni-heidelberg.de (EHLO relay2.uni-heidelberg.de) [129.206.210.211] by mx0.gmx.net (mx088) with SMTP; 20 Sep 2010 12:12:09 +0200 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 o8KABXEe021542 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 20 Sep 2010 12:11:33 +0200 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 o8KA1WCr012535; Mon, 20 Sep 2010 12:10:40 +0200 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 16.0) with spool id 456606 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Mon, 20 Sep 2010 12:10:40 +0200 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 o8KAAeOt021128 for ; Mon, 20 Sep 2010 12:10:40 +0200 Received: from oberon.open.ac.uk (oberon.open.ac.uk [137.108.141.46]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id o8KAASoD028343 for ; Mon, 20 Sep 2010 12:10:32 +0200 X-IronPort-AV: E=Sophos;i="4.56,392,1280703600"; d="scan'208";a="52770633" X-Disclaimed: 1 Importance: Normal X-Priority: 3 (Normal) References: <4C967C9B.5010706@gmx.de> <71ED7A5B-DE11-45D9-9785-95A1DC795080@gmail.com> <4C9724B4.3010301@residenset.net>, <4C972741.70502@morningstar2.co.uk> MIME-Version: 1.0 X-Mailer: Lotus Domino Web Server Release 8.5.2 HF16 August 30, 2010 X-MIMETrack: Serialize by HTTP Server on mcs-notes1/mcs/UK(Release 8.5.2 HF16|August 30, 2010) at 20/09/2010 11:10:27, Serialize complete at 20/09/2010 11:10:27, Itemize by HTTP Server on mcs-notes1/mcs/UK(Release 8.5.2 HF16|August 30, 2010) at 20/09/2010 11:10:27, Serialize by Router on mcs-notes1/mcs/UK(Release 8.5.2 HF16|August 30, 2010) at 20/09/2010 11:10:28, Serialize complete at 20/09/2010 11:10:28 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by listserv.uni-heidelberg.de id o8KAAeOt021129 Message-ID: Date: Mon, 20 Sep 2010 11:10:27 +0100 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Chris Rowley Subject: Re: boolean expressions in ExplSyntaxNames To: LATEX-L@listserv.uni-heidelberg.de In-Reply-To: <4C972741.70502@morningstar2.co.uk> Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: X-GMX-Antispam: 0 (Mail was not recognized as spam); Detail=5D7Q89H36p4WX0t+AtsdW7yLAyG7gjsvbuMBW1+iOcuX20PnIgZYSReJ2t5I3NmC6UiZ5 m/C4lwalEbbXLc0SQM9DzJc0PDB2SQR7IUhMTfMVOxsqmn1fI9E19lKlwNg+oc3IiIeD4kYFqcws Cjzmg==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: 6421 My intuition is to agree with Lars, for the designs reasons he gives and because one mission of this language is that it is reasonably human understandable and consistent. My prejudice is not to use things like ¦ & because _I_ have never used them elsewhere and, again as Lars says, they cannot be true operators (as they are in their source languages) in this language. chris --------------------------------------------------------------------------- The Open University is incorporated by Royal Charter (RC 000391), an exempt charity in England & Wales and a charity registered in Scotland (SC 038302)