in reply to Re: Data Structures wanted; apply within.
in thread Data Structures wanted; apply within.

Sure: 
@sorted = sort{ substr($a,$pos,$length) 
    cmp substr($b,$pos,$length)}
    @list;

[download]
It's no module, but it works...

Hope this helps,

Jeroen
"We are not alone"(FZ)

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Re: Re: Re: Data Structures wanted; apply within.
by DeaconBlues (Monk) on Mar 09, 2001 at 22:39 UTC

    Thanks, but the power of the module is that it allows your to sort on any number of columns. For example:
    first sort on substr($string, $foo0, $bar0), then
    then sort on substr($string, $foo1, $bar1) , then
    then sort on substr($string, $foo2, $bar2) , ... and so on.

[reply]
[d/l]
[select]
      If you take a look at sort, you see that you can do something like 
      sub deepsort {
  substr( $_[0], $p[0], $l[0]) cmp substr( $_[1], $p[0], $l[0] )
            ||
  substr( $_[0], $p[1], $l[1]) cmp substr( $_[1], $p[1], $l[1] )
            ||
....ad nauseum
}
@sorted = sort 'deepsort', @list;

      [download]
      Of course it's better to build the deepsort from an eval and map.....

      Jeroen
      "We are not alone"(FZ)

[reply]
[d/l]

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