%title = ( value => 'Welcome to my website!',
           char_ct => 22,
           word_ct => 4,
           repeat_ct => 1 );

%keywords = ( value => 'candy, food, pop, candy cane, soda, caffeine',
              char_ct => 31,
              word_ct => 5,
              repeat_ct => 2 );
etc...

##</code><code>##

%tags = ( title    => { value => 'Welcome to my website!',
                        char_ct => 22,
                        word_ct => 4,
                        repeat_ct => 1 },
          keywords => { value => 'candy, food, pop, candy cane, soda, caffeine',
                        char_ct => 31,
                        word_ct => 5,
                        repeat_ct => 2 } );

##</code><code>##

$title{value} = 'Welcome to my website!';

##</code><code>##

$tags{title}{value} = 'Welcome to my website!';

##</code><code>##

( $num_chars, $num_words ) = count_chars_words( $tags{title} );

sub count_chars_words
{
    my ( $hashref ) = @_;
    my $value = ${ $hashref }{value};
    # count stuff and return
}

##</code><code>##

$tags{keywords}{val_list} = [ ( split( ', ', $tags{keywords}{value} ) ) ];
print ${ $tags{keywords}{val_list} }[2]; # pop