Perhaps I'm misunderstanding your issue's description, but it sounds like the following: given a set of characters and a hash key, return (chars in key / 5) * $hash{key}. If this is the case, perhaps the following will work for you:

use Modern::Perl;

my %hash = (
    ABCDE => 12,
    FGHIJ => 7,
    KLMNO => 2
);

say getMatchResult( 'AC', 'ABCDE' );

sub getMatchResult {
    my ( $find, $key ) = @_;
    my $matches = () = $key =~ /[$find]/ig;

    ( $matches / 5 ) * $hash{$key};
}

[download]

Output:

4.8

[download]

Hope this helps!

Update: Thanks to hmb for suggesting the goatse operator (and character class). It timed faster than my iterative solution w/regex.

In reply to Re: Perl hash comparison by Kenosis
in thread Perl hash comparison by robertw

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