jshock schreef:
> For example:
>
> my %weekdays = (
> 0 => "SUN",
> 1 => "MON",
> 2 => "TUE",
> 3 => "WED",
> 4 => "THU",
> 5 => "FRI",
> 6 => "SAT",
> );
> $weekdays{2}; # gives "TUE"
>
> But what if I know "TUE" and want to find out what the key is? Is
> there a construct like $weekdays{"TUE"} that gives 2"
The data structure that you show, belongs in an array.
perl -le'
#!/usr/bin/perl
use strict;
use warnings;
my @n2d = qw( SUN MON TUE WED THU FRI SAT );
my %d2n; @d2n{ @n2d } = ( 0 .. $#n2d );
print $d2n{ WED };
'
3
--
Affijn, Ruud
"Gewoon is een tijger."
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