NAME
       Tie::Hash::RegexKeys - Match hash keys using Regular Expressions

SYNOPSIS
               use Tie::Hash::RegexKeys;
               use Data::Dumper;

               my %h;

               tie %h, 'Tie::Hash::RegexKeys';

               my $a = '.1.2.3.4.5.6.2';
               my $b = '.1.2.3.4.5.7';
               my $c = '.1.2.3.4.5.6.1';
               my $d = '.1.2.3.4.5.6.1.6';

               $h{$a}="key1";
               $h{$b}="key2";
               $h{$c}="subkey1";
               $h{$d}="subkey2";

               my $pat = '^\.1\.2\.3\.4\.5\.6.*';
               my @res = tied(%h)->FETCH_KEYS(qr/$pat/);
               print Dumper(@res);

       Return this:

               $VAR1 = '.1.2.3.4.5.6.1';
               $VAR2 = '.1.2.3.4.5.6.1.6';
               $VAR3 = '.1.2.3.4.5.6.2'

DESCRIPTION
       Extend Tie::Hash::Regex to retrieve the KEYS in place of values

METHODS
       FETCH_KEYS
      Get KEY(S) from the hash. If there isn't an exact match try a regex match.

AUTHOR
       Fabrice DULAUNOY <fabrice@dulaunoy.com>

COPYRIGHT
       Copyright (C) 2005, Fabrice DULAUNOY.  All Rights Reserved.

       This script is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

SEE ALSO
       perl(1).

       perltie(1).

       Tie::RegexHash(1)

       Tie::Hash::Regex(1)


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