Re: bash: Initialisation of an associative array using a compound assignment

From	Francis Moreau <francis.moro@gmail.com>
Newsgroups	comp.unix.shell
Subject	Re: bash: Initialisation of an associative array using a compound assignment
Date	2012-05-08 00:57 -0700
Organization	http://groups.google.com
Message-ID	<28536388.3425.1336463865455.JavaMail.geo-discussion-forums@vbyb13> (permalink)
References	<0d56e766-9a3f-45ec-a8e9-b212375cf035@gn8g2000vbb.googlegroups.com> <3gjd79-lha.ln1@cjlocal.com> <barmar-46664D.19154504052012@news.eternal-september.org>

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On Saturday, May 5, 2012 1:15:46 AM UTC+2, Barry Margolin wrote:
> In article <3gjd79-lha.ln1@cjlocal.com>,
>  "Chris F.A. Johnson" <cfajohnson@gmail.com> wrote:
> 
> > On 2012-05-04, Francis Moreau wrote:
> > > Hello,
> > >
> > > I don't understand why initialising an associative array like the
> > > following doesn't work:
> > >
> > >   $ declare -A a
> > >   $ a=($(echo '[key]=val')
> > >   bash: a: [key]=val: must use subscript when assigning associative
> > > array
> > >
> > > Could anybody enlight me ?
> > 
> > a=( [key]=val )
> > 
> >   Or:
> > 
> > eval "a=( $(echo '[key]=val') )"
> 
> He asked *why*.
> 
> The answer is presumably due to the order that the shell does its 
> parsing.  It looks for [subscript] *before* expanding process 
> substutions. 

BTW, could anybody tell me where this is described in the bash documentation ?

Thanks

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bash: Initialisation of an associative array using a compound assignment Francis Moreau <francis.moro@gmail.com> - 2012-05-04 01:43 -0700
  Re: bash: Initialisation of an associative array using a compound assignment "Chris F.A. Johnson" <cfajohnson@gmail.com> - 2012-05-04 14:24 -0400
    Re: bash: Initialisation of an associative array using a compound assignment Barry Margolin <barmar@alum.mit.edu> - 2012-05-04 19:15 -0400
      Re: bash: Initialisation of an associative array using a compound assignment Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-05 09:42 +0200
        Re: bash: Initialisation of an associative array using a compound assignment Barry Margolin <barmar@alum.mit.edu> - 2012-05-05 17:43 -0400
          Re: bash: Initialisation of an associative array using a compound assignment Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-06 03:41 +0200
            Re: bash: Initialisation of an associative array using a compound assignment Barry Margolin <barmar@alum.mit.edu> - 2012-05-05 22:34 -0400
        Re: bash: Initialisation of an associative array using a compound assignment Francis Moreau <francis.moro@gmail.com> - 2012-05-06 07:30 -0700
      Re: bash: Initialisation of an associative array using a compound assignment Francis Moreau <francis.moro@gmail.com> - 2012-05-06 07:35 -0700
      Re: bash: Initialisation of an associative array using a compound assignment Francis Moreau <francis.moro@gmail.com> - 2012-05-08 00:57 -0700
  Re: bash: Initialisation of an associative array using a compound assignment Stephane Chazelas <stephane.chazelas@gmail.com> - 2012-05-06 17:16 +0100
    Re: bash: Initialisation of an associative array using a compound assignment Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-07 02:06 +0200

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