From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16153 invoked from network); 10 Jul 2009 09:14:46 -0000 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.2.5 Received: from new-brage.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.254.104) by ns1.primenet.com.au with SMTP; 10 Jul 2009 09:14:46 -0000 Received-SPF: none (ns1.primenet.com.au: domain at sunsite.dk does not designate permitted sender hosts) Received: (qmail 7383 invoked from network); 10 Jul 2009 09:07:22 -0000 Received: from sunsite.dk (130.225.247.90) by a.mx.sunsite.dk with SMTP; 10 Jul 2009 09:07:22 -0000 Received: (qmail 5306 invoked by alias); 10 Jul 2009 09:07:15 -0000 Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 27120 Received: (qmail 5282 invoked from network); 10 Jul 2009 09:07:14 -0000 Received: from bifrost.dotsrc.org (130.225.254.106) by sunsite.dk with SMTP; 10 Jul 2009 09:07:14 -0000 Received: from cluster-d.mailcontrol.com (cluster-d.mailcontrol.com [85.115.60.190]) by bifrost.dotsrc.org (Postfix) with ESMTPS id DE26080307FA for ; Fri, 10 Jul 2009 11:07:11 +0200 (CEST) Received: from cameurexb01.EUROPE.ROOT.PRI ([193.128.72.68]) by rly24d.srv.mailcontrol.com (MailControl) with ESMTP id n6A9727p026662 for ; Fri, 10 Jul 2009 10:07:09 +0100 Received: from news01 ([10.99.50.25]) by cameurexb01.EUROPE.ROOT.PRI with Microsoft SMTPSVC(6.0.3790.3959); Fri, 10 Jul 2009 10:02:28 +0100 Date: Fri, 10 Jul 2009 10:02:28 +0100 From: Peter Stephenson To: zsh-workers@sunsite.dk Subject: Re: bug: $? after empty command Message-ID: <20090710100228.783de399@news01> In-Reply-To: References: <20090709154124.2cd2a227@news01> Organization: CSR X-Mailer: Claws Mail 3.5.0 (GTK+ 2.12.8; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 10 Jul 2009 09:02:28.0054 (UTC) FILETIME=[264AA760:01CA013D] X-Scanned-By: MailControl A-09-20-00 (www.mailcontrol.com) on 10.68.0.134 X-Virus-Scanned: ClamAV 0.94.2/9551/Thu Jul 9 15:22:08 2009 on bifrost X-Virus-Status: Clean On Thu, 9 Jul 2009 21:41:51 +0000 (UTC) Eric Blake wrote: > Eric Blake byu.net> writes: > > > But just from inspection, > > it looks like it does not cover these related issues, which are both required > > by POSIX to output 0: > > > > $ zsh -c 'false; . /dev/null; echo $?' > > 1 > > $ zsh -c 'false; ``; echo $?' > > 1 > > And another one that POSIX requires to output 0: > > $ zsh -c 'false; sleep& echo $?' > 1 These still need fixing. Also, I don't think it affects POSIX, because empty functions aren't required to work, but in zsh, "fn() { }" is valid, and I suspect "fn" logically ought to reset the status, too---basically anywhere where you've run a complex command with an empty list of commands in it. -- Peter Stephenson Software Engineer CSR PLC, Churchill House, Cambridge Business Park, Cowley Road Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070