From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 810 invoked from network); 5 Sep 2005 21:43:32 -0000 Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88) by ns1.primenet.com.au with SMTP; 5 Sep 2005 21:43:32 -0000 Received: (qmail 49399 invoked from network); 5 Sep 2005 21:43:26 -0000 Received: from sunsite.dk (130.225.247.90) by a.mx.sunsite.dk with SMTP; 5 Sep 2005 21:43:26 -0000 Received: (qmail 9850 invoked by alias); 5 Sep 2005 21:43:18 -0000 Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 21700 Received: (qmail 9837 invoked from network); 5 Sep 2005 21:43:17 -0000 Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88) by sunsite.dk with SMTP; 5 Sep 2005 21:43:17 -0000 Received: (qmail 48709 invoked from network); 5 Sep 2005 21:43:17 -0000 Received: from vms042pub.verizon.net (206.46.252.42) by a.mx.sunsite.dk with SMTP; 5 Sep 2005 21:43:09 -0000 Received: from candle.brasslantern.com ([71.116.79.190]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IMD00CLC5NM3M44@vms042.mailsrvcs.net> for zsh-workers@sunsite.dk; Mon, 05 Sep 2005 16:42:58 -0500 (CDT) Received: from candle.brasslantern.com (IDENT:schaefer@localhost [127.0.0.1]) by candle.brasslantern.com (8.12.11/8.12.11) with ESMTP id j85LguPY009177 for ; Mon, 05 Sep 2005 14:42:57 -0700 Received: (from schaefer@localhost) by candle.brasslantern.com (8.12.11/8.12.11/Submit) id j85LgutN009176 for zsh-workers@sunsite.dk; Mon, 05 Sep 2005 14:42:56 -0700 Date: Mon, 05 Sep 2005 21:42:55 +0000 From: Bart Schaefer Subject: Re: Obscure [not UTF-8] bug in parameter expansion? In-reply-to: <1050905192523.ZM8819@candle.brasslantern.com> To: zsh-workers@sunsite.dk Message-id: <1050905214256.ZM9173@candle.brasslantern.com> MIME-version: 1.0 X-Mailer: Z-Mail (5.0.0 30July97) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable References: <1050905192523.ZM8819@candle.brasslantern.com> Comments: In reply to Bart Schaefer "Obscure UTF-8 bug in parameter expansion?" (Sep 5, 7:25pm) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.0.4 On Sep 5, 7:25pm, Bart Schaefer wrote: } = } [...] } : zargs:233; s=3D20480 = } : zargs:234; l=3D=FF = } [...] I've narrowed this down to a test case: foo() { typeset -a l; echo X${${l##*}[-1]}X } It looks like some recent change has broken negative indexing on an empty match result (it happens with a match result on either an array or a string, but not on a plain empty string). This is broken in 4.2.5 and 4.2.3 as well, but not in 4.2.0. I don't have 4.2.1, 4.2.2 or 4.2.4 handy to test against.