From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <zsh-workers-return-19383-mason-zsh=primenet.com.au@sunsite.dk>
Received: (qmail 27332 invoked from network); 18 Jan 2004 02:59:53 -0000
Received: from sunsite.dk (130.225.247.90)
  by ns1.primenet.com.au with SMTP; 18 Jan 2004 02:59:53 -0000
Received: (qmail 16942 invoked by alias); 18 Jan 2004 02:59:46 -0000
Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm
Precedence: bulk
X-No-Archive: yes
X-Seq: 19383
Received: (qmail 16803 invoked from network); 18 Jan 2004 02:59:45 -0000
Received: from localhost (HELO sunsite.dk) (127.0.0.1)
  by localhost with SMTP; 18 Jan 2004 02:59:45 -0000
X-MessageWall-Score: 0 (sunsite.dk)
Received: from [204.127.202.55] by sunsite.dk (MessageWall 1.0.8) with SMTP; 18 Jan 2004 2:59:45 -0000
Received: from naz.lickey.com (12-228-204-188.client.attbi.com[12.228.204.188])
          by comcast.net (sccrmhc11) with ESMTP
          id <2004011802594401100jhvr4e>; Sun, 18 Jan 2004 02:59:44 +0000
Received: by naz.lickey.com (Postfix, from userid 1000)
	id AFF8C189CC; Sat, 17 Jan 2004 18:59:43 -0800 (PST)
To: zsh-workers@sunsite.dk
Subject: Re: Is there an idiom for converting an array to an associative
 array?
References: <87vfndnnwe.fsf@naz.lickey.com>
	<1040116042310.ZM28857@candle.brasslantern.com>
From: Matt Armstrong <matt@lickey.com>
Date: Sat, 17 Jan 2004 18:59:43 -0800
In-Reply-To: <1040116042310.ZM28857@candle.brasslantern.com> (Bart
 Schaefer's message of "Fri, 16 Jan 2004 04:23:10 +0000")
Message-ID: <87oet2neqo.fsf@naz.lickey.com>
User-Agent: Gnus/5.110002 (No Gnus v0.2) Emacs/21.3 (gnu/linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

Bart Schaefer <schaefer@brasslantern.com> writes:

> On Jan 15,  9:05am, Matt Armstrong wrote:
> }
> } I'm looking for an idiom that will convert the array (a b c) into
> } (a "" b "" c "") so I can assign it easily to an associative array.
>
> As it happens ...
>
>     typeset "assoc[${^array[@]}]=''"
>
> should do that particular thing quite effectively, provided that none
> of the values of $array is * or @.

Thanks, I'll give it a whirl, and then study it for a couple of hours
to figure out how it works.  :-)


> } Right now I've got ugliness like this:
> } 
> }     array=(a b c)
> }     set -A assoc
>
> That should be "typeset -A assoc".  "set -A" means something entirely
> different.

I jumped to "To create an empty array (including associative arrays)"
in the text below:

       Associative arrays must be declared before assignment, by using:

              typeset -A name

       When name refers to an associative array, the list in an assignment  is
       interpreted as alternating keys and values:

              set -A name key value ...
              name=(key value ...)

       Every  key  must  have a value in this case.  Note that this assigns to
       the entire array, deleting any elements that do not appear in the list.

       To create an empty array (including associative arrays), use one of:

              set -A name
              name=()

This is from Debian Linux's packaging of zsh 4.0.8


-- 
matt