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From: "Bart Schaefer" <schaefer@candle.brasslantern.com>
Message-Id: <960723185206.ZM4298@candle.brasslantern.com>
Date: Tue, 23 Jul 1996 18:52:06 -0700
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To: zsh-workers@math.gatech.edu
Subject: Array values and parameter expansion specs
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There isn't much documentation in zshexpn.man concerning which of the SPEC
forms can be used with array expressions.  For example, ${#NAME} describes
what happens if NAME is an array, and there are a few mentions of NAME[@],
but otherwise there's silence.  The stuff in zshparam.man (and the "Array
parameters" section of zsh.info) is no more helpful.

Consider:

zsh% foo=(1 2 3)
zsh% echo ${foo[2]:+whee}
whee
zsh% echo ${foo[2]:-whee}
2
zsh% echo ${foo[2]:=whee}
zsh: closing brace expected
zsh%

What's the distinction?

-- 
Bart Schaefer                             Brass Lantern Enterprises
http://www.well.com/user/barts            http://www.nbn.com/people/lantern

New male in /home/schaefer:
>N  2 Justin William Schaefer  Sat May 11 03:43  53/4040  "Happy Birthday"