From: Zefram <A.Main@dcs.warwick.ac.uk>
To: guillaum@clipper.ens.fr (Florent Guillaume)
Cc: zsh-workers@math.gatech.edu
Subject: Re: IFS problem
Date: Tue, 30 Apr 1996 18:19:07 +0100 (BST) [thread overview]
Message-ID: <21648.199604301719@stone.dcs.warwick.ac.uk> (raw)
In-Reply-To: <199604301551.RAA19638@clipper.ens.fr> from "Florent Guillaume" at Apr 30, 96 05:51:07 pm
> var="a%b%c"
> OIFS=$IFS
> IFS='%'; set - $var; IFS=$OIFS
> echo $#
>
>returns 3 under sh, ksh, bash 1.14.3
>but 1 under zsh 2.6.beta15
>
>Is it a known bug ?
No, it's a known feature. It's discussed in the FAQ.
By default, zsh does not perform field splitting (which IFS is used
for). To get standard Bourne/Korn/POSIX shell behaviour, use `setopt
sh_word_split`. (That option, by the way, is misnamed -- word
splitting is something else entirely.) To get field splitting on a
case-by-case basis, use "$=var" instead of "$var". "$==var" can also
be used to *dis*able field splitting for one substitution only.
For example:
var="a%b%c"
OIFS=$IFS
IFS='%'; set - $=var; IFS=$OIFS
echo $#
-zefram
prev parent reply other threads:[~1996-04-30 17:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-04-30 15:51 Florent Guillaume
1996-04-30 17:19 ` Zefram [this message]
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