From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15068 invoked from network); 4 Sep 2003 09:29:25 -0000 Received: from sunsite.dk (130.225.247.90) by ns1.primenet.com.au with SMTP; 4 Sep 2003 09:29:25 -0000 Received: (qmail 24119 invoked by alias); 4 Sep 2003 09:29:12 -0000 Mailing-List: contact zsh-users-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 6523 Received: (qmail 24108 invoked from network); 4 Sep 2003 09:29:12 -0000 Received: from localhost (HELO sunsite.dk) (127.0.0.1) by localhost with SMTP; 4 Sep 2003 09:29:12 -0000 X-MessageWall-Score: 0 (sunsite.dk) Received: from [62.189.183.235] by sunsite.dk (MessageWall 1.0.8) with SMTP; 4 Sep 2003 9:29:12 -0000 Received: from EXCHANGE02.csr.com (unverified) by MAILSWEEPER01.cambridgesiliconradio.com (Content Technologies SMTPRS 4.3.10) with ESMTP id for ; Thu, 4 Sep 2003 10:27:23 +0100 Received: from csr.com ([192.168.144.127]) by EXCHANGE02.csr.com with Microsoft SMTPSVC(5.0.2195.5329); Thu, 4 Sep 2003 10:30:14 +0100 To: zsh-users@sunsite.dk Subject: Re: Behavior change in ${...//...} In-reply-to: "Danek Duvall"'s message of "Wed, 03 Sep 2003 13:29:53 PDT." <20030903202953.GB19734@lorien.emufarm.org> Date: Thu, 04 Sep 2003 10:28:12 +0100 Message-ID: <6728.1062667692@csr.com> From: Peter Stephenson X-OriginalArrivalTime: 04 Sep 2003 09:30:14.0000 (UTC) FILETIME=[24EBD700:01C372C7] Danek Duvall wrote: > Between 4.0.x and 4.1.1, the requirements to quote a "/" in the > replacement part of a ${name//pattern/repl} expression changed from two > backslashes to one. The new syntax doesn't work in the old versions and > vice versa. See the README file for 4.0.7. A change between 4.0.6 and 4.0.7 affects substitutions of the form ${foo/src/rep} and ${foo//src/rep}. In 4.0.6, a literal `/' was quoted in the `src' text with two backslashes. This was documented, but inconsistent with normal quoting conventions and poorly implemented. The `/' now requires only one backslash to quote it whether or not the expresion occurs in double quotes. For example: % foo=word/bird % print ${foo/\//-} "${foo/\//+}" word-bird word+bird Note also the following workaround which is valid in all versions of the shell that support this syntax: % slash=/ % foo=word/bird % print ${foo/$slash/-} "${foo/$slash/+}" -- Peter Stephenson Software Engineer CSR Ltd., Science Park, Milton Road, Cambridge, CB4 0WH, UK Tel: +44 (0)1223 692070 ********************************************************************** The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. **********************************************************************