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Date: Wed, 2 Nov 2011 12:06:49 +0000
From: Stephane Chazelas <stephane_chazelas@yahoo.fr>
To: Mikael Magnusson <mikachu@gmail.com>
Cc: zsh-workers@zsh.org
Subject: Re: Array as parameter
Message-ID: <20111102120649.GB6375@yahoo.fr>
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User-Agent: Mutt/1.5.21 (2010-09-15)

2011-11-02 11:14:38 +0100, Mikael Magnusson:
> On 2 November 2011 10:10, Stephane CHAZELAS <stephane_chazelas@yahoo.fr> wrote:
> > 2011-11-1, 22:00(-07), Wayne Davison:
> >> However, if you need to be able to keep the array
> >> parameter separate from other parameters, you could instead refer to the
> >> variable whose name you passed in using ${(P)1} in your function in place
> >> of the $1.
> >
> > Except that it doesn't work for arrays. You'd need to  use eval
> > here.
> 
> (P) works perfectly fine with arrays.
[...]

Indeed, though it seems you have to write it as "${${(@P)1}[@]}", I'm not too sure why.

~/install/cvs/pixz$ zsh -c 'a=("" "a b" c d); b=a; print -l "${${(P)b}[@]}"'
 a b c d
~/install/cvs/pixz$ zsh -c 'a=("" "a b" c d); b=a; print -l "${${(@P)b}[@]}"'

a b
c
d

-- 
Stephane