require HTML::HeadParser; $p = HTML::HeadParser->new; $p->parse($text) and print "not finished"; $p->header('Title') # to access <title>....</title> $p->header('Content-Base') # to access <base href="http://..."> $p->header('Foo') # to access <meta http-equiv="Foo" content="..."> $p->header('X-Meta-Author') # to access <meta name="author" content="..."> $p->header('X-Meta-Charset') # to access <meta charset="...">
Note that the "HTML::HeadParser" might get confused if raw undecoded UTF-8 is passed to the parse() method. Make sure the strings are properly decoded before passing them on.
The "HTML::HeadParser" keeps a reference to a header object, and the parser will update this header object as the various elements of the <HEAD> section of the HTML document are recognized. The following header fields are affected:
<meta> elements containing a "http-equiv" attribute will result in headers as in above, but without the "X-Meta-" prefix in the header name.
<meta> elements containing a "charset" attribute will result in an "X-Meta-Charset" header, using the value of the "charset" attribute as the pushed header value.
The ':' character can't be represented in header field names, so if the meta element contains this char it's substituted with '-' before forming the field name.
If no $header is given "HTML::HeadParser" will create an "HTTP::Headers" object by itself (initially empty).
$h = HTTP::Headers->new; $p = HTML::HeadParser->new($h); $p->parse(<<EOT); <title>Stupid example</title> <base href="http://www.linpro.no/lwp/"> Normal text starts here. EOT undef $p; print $h->title; # should print "Stupid example"
The "HTTP::Headers" class is distributed as part of the libwww-perl package. If you don't have that distribution installed you need to provide the $header argument to the "HTML::HeadParser" constructor with your own object that implements the documented protocol.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.