QM's solution is clever. Here is a prosaic method that works for a known maximum number of keys: 
my ($key, $val) = split /=/;
my @keys = split /:/, $key;

if (@keys == 1) {
   $hash{ $key[0] } = $value;
}
elsif (@keys == 2) {
   $hash{ $key[0] }{ $key[1] } = $value;
}
# etc.

[download]

-Mark

In reply to Re: List Values As Multidimensional Hash Keys by kvale
in thread List Values As Multidimensional Hash Keys by joule

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