use strict;
use HTML::TokeParser;
use Data::Dumper;

my %tokens;
my %tokencount;

my $p = HTML::TokeParser->new("test.html") or die "Can't open: $!";

while (my $token = $p->get_token)
{
    if ( $token->[0] eq "S" )
    {
        $tokens{$token->[1]}++
            unless $token->[1] =~ /meta/i;
    }
    elsif ( $token->[0] eq "E" )
    {
        $tokens{$token->[1]}--;
    }
    elsif ( $token->[0] eq "T" )
    {
        my @words = ( $token->[1] =~ /\b(\w+)/g );

        for ( keys %tokens )
        {
            $tokencount{$_} += @words
                if $tokens{$_} > 0;
        }
    }
}

print Dumper (\%tokencount);