creating associative arrays

creating associative arrays

[Akos Szalkai]

Hello,

I am trying to fill an associative array from a file.  If the name of
the file is fixed, e.g. array.txt then the following works:

: ${(AA)dict::=$(<array.txt)}

However, if the filename is given in a parameter then the command:
: ${(AA)dict::=$(<${filename})}
gives the error
zsh: bad set of key/value pairs for associative array.

I guess I am mixing up some kind of expansion order, so could somebody
help?

Thanks in advance,
Akos

Re: creating associative arrays

[Peter Stephenson]

"Akos Szalkai" wrote:
> I am trying to fill an associative array from a file.  If the name of
> the file is fixed, e.g. array.txt then the following works:
> 
> : ${(AA)dict::=$(<array.txt)}
> 
> However, if the filename is given in a parameter then the command:
> : ${(AA)dict::=$(<${filename})}
> gives the error
> zsh: bad set of key/value pairs for associative array.

There's not much that can go wrong there, if filename is set to array.txt
and that contains an even number of words.  Are you sure it is and does?
Sorry, I don't think this is very helpful...

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 392070


**********************************************************************
The information transmitted is intended only for the person or
entity to which it is addressed and may contain confidential 
and/or privileged material. 
Any review, retransmission, dissemination or other use of, or
taking of any action in reliance upon, this information by 
persons or entities other than the intended recipient is 
prohibited.  
If you received this in error, please contact the sender and 
delete the material from any computer.
**********************************************************************

Re: creating associative arrays

[Akos Szalkai]

> There's not much that can go wrong there, if filename is set to array.txt
> and that contains an even number of words.  Are you sure it is and does?

Yes to both.  I am using zsh 4.0.4, and I can reproduce this by simply
putting key<TAB>value into array.txt.  (The same happens on 3.1.6 and
with the stock 4.0.1pre3 on SuSE 7.2.)

The options set are the following (even though they do not seem to be
related):
autocd nobeep nobgnice completeinword correct cshnullglob extendedglob
histexpiredupsfirst histignoredups histignorespace histnostore
histverify nohup ignoreeof interactive login longlistjobs nonotify

Can anybody reproduce this?

Akos

-- 
Akos Szalkai <szalkai@2f.hu>
IT Consultant
2F 2000 Szamitastechnikai es Szolgaltato Kft.
Tel: (+36-1)-4887700  Fax: (+36-1)-4887709  WWW: http://www.2f.hu/

Re: creating associative arrays

[Akos Szalkai]

On Tue, Dec 11, 2001 at 07:45:22PM +0100, Akos Szalkai wrote:
> I am trying to fill an associative array from a file.  If the name of
> the file is fixed, e.g. array.txt then the following works:
> 
> : ${(AA)dict::=$(<array.txt)}
> 
> However, if the filename is given in a parameter then the command:
> : ${(AA)dict::=$(<${filename})}
> gives the error
> zsh: bad set of key/value pairs for associative array.

Sorry for having a conversation with myself here, but I realized that it
has to do with splitting.  If in the second case I use
: ${(AA)=dict::=$(<${filename})}
or anything similar, like
: ${(AA)dict::=${(z)$(<${filename})}}
it all works.  Thinking about it (hopefully with a clearer head than last
night) the error message seemed to be the correct behavior.

However, the question remains: why did the first case (with the filename
given directly instead of by a parameter) work then?

Akos

-- 
Akos Szalkai <szalkai@2f.hu>
IT Consultant
2F 2000 Szamitastechnikai es Szolgaltato Kft.
Tel: (+36-1)-4887700  Fax: (+36-1)-4887709  WWW: http://www.2f.hu/

Re: creating associative arrays

[Bart Schaefer]

On Dec 11,  7:45pm, Akos Szalkai wrote:
} 
} I am trying to fill an associative array from a file.  If the name of
} the file is fixed, e.g. array.txt then the following works:
} 
} : ${(AA)dict::=$(<array.txt)}
} 
} However, if the filename is given in a parameter then the command:
} : ${(AA)dict::=$(<${filename})}
} gives the error
} zsh: bad set of key/value pairs for associative array.

This is a side-effect of the bug that was fixed in zsh-workers/16215.
That was about a week after the 4.0.4 release; the above works in the
latest 4.1.0-dev.  I haven't committed that patch on the 4.0 branch yet.


[Unrelated admin note:  My ISP is playing games with me again, so any
mail directed to schaefer@candle.brasslantern.com or to any other third-
or greater-level domain in brasslantern.com, will bounce.  Mail sent to
schaefer@brasslantern.com will get through.]

-- 
Bart Schaefer                                 Brass Lantern Enterprises
http://www.well.com/user/barts              http://www.brasslantern.com

Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net