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Re: Check existence of an element of an array (a FAQ?)

X-seq: zsh-users 12887
From: Stephane Chazelas <Stephane_Chazelas@xxxxxxxx>
To: Helmut Jarausch <jarausch@xxxxxxxxxxxxxxxxxxx>
Subject: Re: Check existence of an element of an array (a FAQ?)
Date: Fri, 30 May 2008 09:53:08 +0100
Cc: zsh-users@xxxxxxxxxx
In-reply-to: <tkrat.6fc8d798a167c9eb@xxxxxxxxxxxxxxxxxxx>
Mail-followup-to: Helmut Jarausch <jarausch@xxxxxxxxxxxxxxxxxxx>, zsh-users@xxxxxxxxxx
Mailing-list: contact zsh-users-help@xxxxxxxxxx; run by ezmlm
References: <tkrat.6fc8d798a167c9eb@xxxxxxxxxxxxxxxxxxx>

On Fri, May 30, 2008 at 10:40:30AM +0200, Helmut Jarausch wrote:
[...]
> Is there an elegant way (i.e. without a loop) to
> get the following action
> 
> Special_Users=('you','me',......)
> 
> U='nobody'
> 
> if  $U in $Special_Users
>   # do something
> fi
[...]

if (($Special_Users[(Ie)$U])); then
  # do something
fi

Note that the (e) flag is a recent addition to zsh. You can
ommit it, but then $U is taken as a pattern.

-- 
Stéphane

References:
- Check existence of an element of an array (a FAQ?)
  - From: Helmut Jarausch

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