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 p03M9CrS013777 for ; Mon, 3 Jan 2011 23:09:13 +0100 Received: (qmail 6718 invoked by alias); 3 Jan 2011 22:09:07 -0000 Delivered-To: GMX delivery to rainer.schoepf@gmx.net Received: (qmail invoked by alias); 03 Jan 2011 22:09:06 -0000 Received: from relay2.uni-heidelberg.de (EHLO relay2.uni-heidelberg.de) [129.206.210.211] by mx0.gmx.net (mx092) with SMTP; 03 Jan 2011 23:09:06 +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 p03M6tUH022330 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 3 Jan 2011 23:06:56 +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 p03ImIHm013754; Mon, 3 Jan 2011 23:06:49 +0100 Received: by LISTSERV.UNI-HEIDELBERG.DE (LISTSERV-TCP/IP release 16.0) with spool id 818938 for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Mon, 3 Jan 2011 23:06:48 +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 p03M6mGY029316 for ; Mon, 3 Jan 2011 23:06:48 +0100 Received: from lon1-post-1.mail.demon.net (lon1-post-1.mail.demon.net [195.173.77.148]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id p03M6eJn031921 for ; Mon, 3 Jan 2011 23:06:43 +0100 Received: from cremornelane.demon.co.uk ([80.177.25.195] helo=palladium.local) by lon1-post-1.mail.demon.net with esmtp (Exim 4.69) id 1PZsY4-0001Ii-We for LATEX-L@LISTSERV.UNI-HEIDELBERG.DE; Mon, 03 Jan 2011 22:06:40 +0000 User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-GB; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <4D22486F.5000506@morningstar2.co.uk> Date: Mon, 3 Jan 2011 22:06:39 +0000 Reply-To: Mailing list for the LaTeX3 project Sender: Mailing list for the LaTeX3 project From: Joseph Wright Subject: \box_if_empty:N(TF) To: LATEX-L@listserv.uni-heidelberg.de Precedence: list List-Help: , List-Unsubscribe: List-Subscribe: List-Owner: List-Archive: X-GMX-Antispam: 0 (Mail was not recognized as spam); Detail=5D7Q89H36p77e5KAPs1l6v/Sb97LojnDtMgfETrECMLUO9erHzOJe+OynZRhvlGqb5A0X bbiCt2rAnnct/NAlbHMvoAL6GY+23tB3khNK7bnSLVW+CwI5D12EFi8O0kjG6WQoWUyJZa/tsAeZ e++4A==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: 6516 Hello all, Working on the galley (see the latest SVN checkin), I find that \box_if_empty:NTF is misleading. The test is for a void box, not an empty one: \box_new:N \l_my_box \hbox_set:Nn \l_my_box {} \box_if_empty:NTF \l_my_box { NOPE } { OOPS } I think it should be \box_if_void:NTF - any objections? -- Joseph Wright