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In-Reply-To: <kru5ud$fse$1@ger.gmane.org>
References: <kru5ud$fse$1@ger.gmane.org>
Date: Sun, 14 Jul 2013 15:10:22 +0200
Message-ID: <CAHYJk3QF3Sk0PUjwr_j0OCeALhsWJM64MsB0aeeGhLkxC7osTg@mail.gmail.com>
Subject: Re: How to iterate over an array of associative arrays
From: Mikael Magnusson <mikachu@gmail.com>
To: Thorsten Kampe <thorsten@thorstenkampe.de>
Cc: Zsh Users <zsh-users@zsh.org>
Content-Type: text/plain; charset=UTF-8

On 14 July 2013 14:35, Thorsten Kampe <thorsten@thorstenkampe.de> wrote:
> Hi,
>
> I'd like to iterate over elements of an array. The elements are
> associative arrays. This is my code:
>
> """
> #! /usr/bin/env zsh
> emulate -R zsh
>
> setopt nounset
>
> declare -A elem AssocArr1 AssocArr2
>
> AssocArr1=(key value1)
> AssocArr2=(key value2)
>
> array=($AssocArr1 $AssocArr2)

Do you really want these $ here?

> for elem in $array
>     do echo $elem[key]
> done
> """
>
> ./test.zsh:14: elem[key]: parameter not set

You need to use the (P) flag to access a parameter indirectly.
% foo=(one two)
% bar=foo
% echo $bar[2]
o
% echo ${${bar}[2]}
o
% echo ${${(P)bar}[2]}
two

--
Mikael Magnusson