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)
Check Out this Related Man Page
HTTP::Request(3) User Contributed Perl Documentation HTTP::Request(3)NAME
HTTP::Request - HTTP style request message
SYNOPSIS
require HTTP::Request;
$request = HTTP::Request->new(GET => 'http://www.example.com/');
and usually used like this:
$ua = LWP::UserAgent->new;
$response = $ua->request($request);
DESCRIPTION
"HTTP::Request" is a class encapsulating HTTP style requests, consisting of a request line, some headers, and a content body. Note that the
LWP library uses HTTP style requests even for non-HTTP protocols. Instances of this class are usually passed to the request() method of an
"LWP::UserAgent" object.
"HTTP::Request" is a subclass of "HTTP::Message" and therefore inherits its methods. The following additional methods are available:
$r = HTTP::Request->new( $method, $uri )
$r = HTTP::Request->new( $method, $uri, $header )
$r = HTTP::Request->new( $method, $uri, $header, $content )
Constructs a new "HTTP::Request" object describing a request on the object $uri using method $method. The $method argument must be a
string. The $uri argument can be either a string, or a reference to a "URI" object. The optional $header argument should be a
reference to an "HTTP::Headers" object or a plain array reference of key/value pairs. The optional $content argument should be a
string of bytes.
$r = HTTP::Request->parse( $str )
This constructs a new request object by parsing the given string.
$r->method
$r->method( $val )
This is used to get/set the method attribute. The method should be a short string like "GET", "HEAD", "PUT" or "POST".
$r->uri
$r->uri( $val )
This is used to get/set the uri attribute. The $val can be a reference to a URI object or a plain string. If a string is given, then
it should be parseable as an absolute URI.
$r->header( $field )
$r->header( $field => $value )
This is used to get/set header values and it is inherited from "HTTP::Headers" via "HTTP::Message". See HTTP::Headers for details and
other similar methods that can be used to access the headers.
$r->accept_decodable
This will set the "Accept-Encoding" header to the list of encodings that decoded_content() can decode.
$r->content
$r->content( $bytes )
This is used to get/set the content and it is inherited from the "HTTP::Message" base class. See HTTP::Message for details and other
methods that can be used to access the content.
Note that the content should be a string of bytes. Strings in perl can contain characters outside the range of a byte. The "Encode"
module can be used to turn such strings into a string of bytes.
$r->as_string
$r->as_string( $eol )
Method returning a textual representation of the request.
SEE ALSO
HTTP::Headers, HTTP::Message, HTTP::Request::Common, HTTP::Response
COPYRIGHT
Copyright 1995-2004 Gisle Aas.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2009-06-15 HTTP::Request(3)