Can I use map instead of the foreach in this bit of code? i have two lists. One has the keys (@keys) I'd like to look for in the other list (@records). The records that have the key are passed through to a @result list. If the result list is non-empty, it goes to the final list as the @result list may be overwritten in the next iteration. Or, is there a totally better alforithm to do this? I have googled and looked on this site before posting but nothing stood out and hit me in the face but I'm sure a more elegant perl way of doing it exists ;) 
my @keys = ( qw|a e i o u| );
my @records = ();
push @records, '1|2|3|d|4';
push @records, '1|2|3|a|4';
push @records, '1|2|3|d|4';
push @records, '1|2|3|o|4';

my @final = ();
my @result = ();
my $re = '';
foreach my $key ( @keys ) {
    @result  = grep{ m/^\d\|\d\|\d\|$key\|\d$/ } @records;
    push @final, [ @result ] if @result;
}
print map{ "@{ $final[$_] }\n" } 0..$#final;

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Merci bien, Perl Monkers!!

In reply to Using map and grep to Sort one list using another list by AntsPants

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