From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13458 invoked from network); 28 Nov 2001 10:31:00 -0000 Received: from sunsite.dk (130.225.247.90) by ns1.primenet.com.au with SMTP; 28 Nov 2001 10:31:00 -0000 Received: (qmail 4554 invoked by alias); 28 Nov 2001 10:30:39 -0000 Mailing-List: contact zsh-users-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 4513 Received: (qmail 4542 invoked from network); 28 Nov 2001 10:30:38 -0000 To: zsh-users@sunsite.dk (Zsh users list) Subject: Re: field splitting behavior In-reply-to: "Zefram"'s message of "Tue, 27 Nov 2001 19:21:34 GMT." <20011127192134.I8299@fysh.org> Date: Wed, 28 Nov 2001 10:30:06 +0000 Message-ID: <28922.1006943406@csr.com> From: Peter Stephenson Zefram wrote: > Paul Lew wrote: > >> var='foobar' > >> echo ${(@)${(s/:/)var}[1]} > >f > > > >So why it did field splitting on each character when there is no > >separator ':' found? I would expect 'foobar' on the output. > > The result of the splitting is a single word "foobar", as you expect. > This is then treated as a scalar, not an array, and so the [1] extracts > the first character, instead of the first element. The (@) doesn't do > what you think it does (it only has an effect where double quotes are > used). I don't see any easy way to force the result of a ${(s...)...} > to be treated as an array, so I'll have to leave that to the expansion > wizards. I can only think of the gross hack print ${${(s/:/):-${var}:rubbish}[1]} which extends the string to make sure it produces an array. It's somewhat inconsistent that you sometimes get a scalar and sometimes an array. -- Peter Stephenson Software Engineer CSR Ltd., Science Park, Milton Road, Cambridge, CB4 0WH, UK Tel: +44 (0)1223 392070 ********************************************************************** 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. **********************************************************************