Good use of a "seen" hash,
asarih, but i have to say that
i would rather use this:
my ($value,$key) = $_ =~ /^([^\|]+)\|(.*)/;
than explicitly "spell out" $1 and $2. But if all
you want to do is split at the first pipe, just use
split:
my ($key,$value) = split(/\|/,$_,2);
next if $seen{$value};
print "$key: $value\n";
$seen{$value}++;
I don't have time for some benchmarking right now, but
substr and
index are fast:
my $index = index($_,'|');
my $key = substr($_,0,$index);
my $value = substr($_,$index);
Just some more ways to do it. ;)
jeffa
L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)