Perl module used to tokenize HTML documents

 HTML::TokeParser::Simple is a subclass of HTML::TokeParser that uses
 easy-to-remember method calls to work with tokens. For instance,
 rather than writing code like this:
 .
    $token->[0] eq 'S' and $token->[1] eq 'form' .
 .
 you can instead write something simpler like this:
 .
    $token->is_start_tag( 'form' )