you can use Sort::Key to generate fast multikey sorting functions: 
# Create a keysort function that uses two strings as keys:

use Sort::Key::Maker ss_keysort => qw(string string);


# And then use it.
# The first argument passed is the subroutine 
# to extract the keys from the data:

my @sorted_by_type_and_author =
  ss_keysort {
                /^name=.*? type=(.*?) author=(.*?)$/;
                ($1, $2)
             } @lines;

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In reply to Re: Sorting with multiple keys by salva
in thread Sorting with multiple keys by Mandrake

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