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From: Zoltan Hidvegi <hzoli@cs.elte.hu>
Message-Id: <199605201836.UAA05688@bolyai.cs.elte.hu>
Subject: Re: 8-bit patch for zle_tricky.c
To: schaefer@nbn.com
Date: Mon, 20 May 1996 20:36:16 +0200 (MET DST)
Cc: A.Main@dcs.warwick.ac.uk, zsh-workers@math.gatech.edu
In-Reply-To: <960520100350.ZM22705@candle.brasslantern.com> from Bart Schaefer at "May 20, 96 10:03:49 am"
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> } > Adding it to $IFS has no effect in this matter, because zsh does not do
> } > field splitting on normal words.  (It should, at least if SH_WORD_SPLIT
> } > is set.)
> } 
> } I do not think so.  Neither bash nor ksh93 does this.  Look:
> } 
> } % ksh
> } $ count () { echo $# ; }
> } $ IFS=/
> } $ count as/df/gh
> } 1
> } 
> } SH_WORD_SPLIT only changes the result of substitutions.
> 
> zsh% /bin/sh
> $ IFS=/
> $ echo/bar
> bar
> $ exit/1
> zsh% echo $?
> 1
> zsh%

Yes, the original Bourne Shell used IFS in the lexer to separate words but
I think that this does not conform the POSIX Shell and Utilities standard.
Also it may be a security hole if IFS is exported.  That's why bash and
ksh does not use IFS here, and zsh should not use it either.

Zoltan