http://www.perlmonks.org?node_id=179444


in reply to Complex Sort - using varying numbers of parameters

Following code seems to work for me: 
my @arr = map {[split /\s+/]} <DATA>;

sub criteria {
  my $r = 0;
  $r ||= (($a->[$_]||0) <=> ($b->[$_]||0)) for 0..5;
  $r;
}

@arr = sort {criteria} @arr;
print join "\n", map {join " ", @$_} @arr;
__DATA__

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This could be optimized to return from 0..5 loop earlier, and sub could be inlined, but let's do this another time.

Courage, the Cowardly Dog

In Section Seekers of Perl Wisdom