From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/43873 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: first steps with \dosingleempty Date: Thu, 11 Sep 2008 09:21:41 +0200 Message-ID: <48C8C705.5090100@wxs.nl> References: Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1221117781 8964 80.91.229.12 (11 Sep 2008 07:23:01 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 11 Sep 2008 07:23:01 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Thu Sep 11 09:23:55 2008 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by lo.gmane.org with esmtp (Exim 4.50) id 1KdgWx-00076v-7w for gctc-ntg-context-518@m.gmane.org; Thu, 11 Sep 2008 09:23:55 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id B21041FDF2; Thu, 11 Sep 2008 09:22:48 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 23072-06-11; Thu, 11 Sep 2008 09:22:26 +0200 (CEST) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 1E9791FDEE; Thu, 11 Sep 2008 09:22:26 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id A9F861FBF1 for ; Thu, 11 Sep 2008 09:22:24 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 23072-06-10 for ; Thu, 11 Sep 2008 09:21:46 +0200 (CEST) Original-Received: from mail.pragma-ade.net (dsl-083-247-100-017.solcon.nl [83.247.100.17]) by ronja.ntg.nl (Postfix) with ESMTP id C64391FDF2 for ; Thu, 11 Sep 2008 09:21:46 +0200 (CEST) Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by controller-1 (SurgeMail 3.9e) with ESMTP id 18307-1840426 for ; Thu, 11 Sep 2008 09:21:46 +0200 User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) In-Reply-To: X-Originating-IP: 10.100.1.100 X-Authenticated-User: hagen@controller-1 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.9 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 X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:43873 Archived-At: Goebel, Juergen wrote: > Hi, > > Regarding the following example I've got two questions. > > (1) Why don't I ever see the argument #2 in the output? > (2) What do I have to do to suppress the unwanted space > after the end of the output of this macro (as can be seen > in the result before the following comma)? > > Regards, > > Juergen > > > \def\Geb{\dosingleempty\doMyGeb} > \def\doMyGeb[#1]#2#3{, x % > \iffirstargument% > Aha > \else > \ifsecondargument% > #2 > \else% > ... %C% > \fi > \fi > \ifthirdargument% > #3% > \else% > ...% > \fi} > > \starttext > > \Geb{Ulm}{11. 9. 2008} % should deliver x Ulm 11. 9. 2008 > \Geb[Ulm]{Ulm}{11. 9. 2008} % should deliver x Aha Ulm 11. 9. 2008 > \Geb{}{11. 9. 2008} % should deliver x ... 11. 9. 2008 > \Geb{Ulm}{} % should deliver x Ulm ... > \Geb{}{} % should deliver x ... > > \stoptext \unexpanded\def\Geb{\dosingleempty\doMyGeb} \def\doMyGeb[#1]#2#3% {, x \iffirstargument Aha \fi \doifsomethingelse{#2}{#2}{...}\space \doifsomethingelse{#3}{#3}{...}% \par} ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 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 : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________