How to Parse TCP header Post: 81685

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html::headparser

HTML::HeadParser(3)					User Contributed Perl Documentation				       HTML::HeadParser(3)

NAME

       HTML::HeadParser - Parse <HEAD> section of a HTML document

SYNOPSIS

	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="...">

DESCRIPTION

       The HTML::HeadParser is a specialized (and lightweight) HTML::Parser that will only parse the <HEAD>...</HEAD> section of an HTML document.
       The parse() method will return a FALSE value as soon as some <BODY> element or body text are found, and should not be called again after
       this.

       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:

       Content-Base:
	   The Content-Base header is initialized from the <base href="..."> element.

       Title:
	   The Title header is initialized from the <title>...</title> element.

       Isindex:
	   The Isindex header will be added if there is a <isindex> element in the <head>.  The header value is initialized from the prompt
	   attribute if it is present.	If no prompt attribute is given it will have '?' as the value.

       X-Meta-Foo:
	   All <meta> elements will initialize headers with the prefix ""X-Meta-"" on the name.  If the <meta> element contains a "http-equiv"
	   attribute, then it will be honored as the header name.

METHODS

       The following methods (in addition to those provided by the superclass) are available:

       $hp = HTML::HeadParser->new( [$header] )
	   The object constructor.  The optional $header argument should be a reference to an object that implement the header() and push_header()
	   methods as defined by the HTTP::Headers class.  Normally it will be of some class that isa or delegates to the HTTP::Headers class.

	   If no $header is given HTML::HeadParser will create an HTTP::Header object by itself (initially empty).

       $hp->header;
	   Returns a reference to the header object.

       $hp->header( $key )
	   Returns a header value.  It is just a shorter way to write "$hp->header->header($key)".

EXAMPLE

	$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"

SEE ALSO

       HTML::Parser, HTTP::Headers

       The HTTP::Headers class is distributed as part of the libwww-perl package.

COPYRIGHT

       Copyright 1996-2001 Gisle Aas. All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.8.0							    2002-03-11						       HTML::HeadParser(3)