{ 
    my $HEX    = qr/ [0-9A-F]  /xi;
    my $HEX_X  = qr/ [0-9A-FX] /xi;

    my $H_opt  = qr/ [h]?      /xi;

    my $INT    = qr/ \b INT \s? $HEX{2} [hH]? /x;   # is longer $H_opt better ???


    our $hyperlinkpattern = qr~
      ...
      $INT
      ...
    ~x;
}