my $old_text = new MUCParser;
$old_text->parse("old_file.html");

print "before\n"
print $old_text->num_of_tags()."\n";

my $new_text = new MUCParser;
$new_text->parse("new_file.html");

print "after\n";
print $old_text->num_of_tags()."\n";
print $new_text->num_of_tags()."\n";

##</code><code>##

before
602
after
397
397