A very humble attempt: 
sub tune {
    my $l = "";
    map {$l=$_ if ($_ eq reverse $_)&&(length $l<length $_)} split /\s
++/, $_[0];
    return $l;
}

[download]

--
tune

In reply to Re: Finding longest palindrome from a string by tune
in thread Finding longest palindrome from a string by BUU

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