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+.\" ========================================================================
+.\"
+.IX Title "HTML::HeadParser 3"
+.TH HTML::HeadParser 3 "2009-08-13" "perl v5.8.7" "User Contributed Perl Documentation"
+.SH "NAME"
+HTML::HeadParser \- Parse <HEAD> section of a HTML document
+.SH "SYNOPSIS"
+.IX Header "SYNOPSIS"
+.Vb 3
+\& require HTML::HeadParser;
+\& $p = HTML::HeadParser\->new;
+\& $p\->parse($text) and print "not finished";
+.Ve
+.PP
+.Vb 5
+\& $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="...">
+.Ve
+.SH "DESCRIPTION"
+.IX Header "DESCRIPTION"
+The \f(CW\*(C`HTML::HeadParser\*(C'\fR is a specialized (and lightweight)
+\&\f(CW\*(C`HTML::Parser\*(C'\fR that will only parse the <\s-1HEAD\s0>...</HEAD>
+section of an \s-1HTML\s0 document. The \fIparse()\fR method
+will return a \s-1FALSE\s0 value as soon as some <\s-1BODY\s0> element or body
+text are found, and should not be called again after this.
+.PP
+Note that the \f(CW\*(C`HTML::HeadParser\*(C'\fR might get confused if raw undecoded
+\&\s-1UTF\-8\s0 is passed to the \fIparse()\fR method. Make sure the strings are
+properly decoded before passing them on.
+.PP
+The \f(CW\*(C`HTML::HeadParser\*(C'\fR keeps a reference to a header object, and the
+parser will update this header object as the various elements of the
+<\s-1HEAD\s0> section of the \s-1HTML\s0 document are recognized. The following
+header fields are affected:
+.IP "Content\-Base:" 4
+.IX Item "Content-Base:"
+The \fIContent-Base\fR header is initialized from the <base
+href=\*(L"...\*(R"> element.
+.IP "Title:" 4
+.IX Item "Title:"
+The \fITitle\fR header is initialized from the <title>...</title>
+element.
+.IP "Isindex:" 4
+.IX Item "Isindex:"
+The \fIIsindex\fR header will be added if there is a <isindex>
+element in the <head>. The header value is initialized from the
+\&\fIprompt\fR attribute if it is present. If no \fIprompt\fR attribute is
+given it will have '?' as the value.
+.IP "X\-Meta\-Foo:" 4
+.IX Item "X-Meta-Foo:"
+All <meta> elements containing a \f(CW\*(C`name\*(C'\fR attribute will result in
+headers using the prefix \f(CW\*(C`X\-Meta\-\*(C'\fR appended with the value of the
+\&\f(CW\*(C`name\*(C'\fR attribute as the name of the header, and the value of the
+\&\f(CW\*(C`content\*(C'\fR attribute as the pushed header value.
+.Sp
+<meta> elements containing a \f(CW\*(C`http\-equiv\*(C'\fR attribute will result
+in headers as in above, but without the \f(CW\*(C`X\-Meta\-\*(C'\fR prefix in the
+header name.
+.Sp
+<meta> elements containing a \f(CW\*(C`charset\*(C'\fR attribute will result in
+an \f(CW\*(C`X\-Meta\-Charset\*(C'\fR header, using the value of the \f(CW\*(C`charset\*(C'\fR
+attribute as the pushed header value.
+.SH "METHODS"
+.IX Header "METHODS"
+The following methods (in addition to those provided by the
+superclass) are available:
+.IP "$hp = HTML::HeadParser\->new" 4
+.IX Item "$hp = HTML::HeadParser->new"
+.PD 0
+.ie n .IP "$hp = HTML::HeadParser\->new( $header )" 4
+.el .IP "$hp = HTML::HeadParser\->new( \f(CW$header\fR )" 4
+.IX Item "$hp = HTML::HeadParser->new( $header )"
+.PD
+The object constructor. The optional \f(CW$header\fR argument should be a
+reference to an object that implement the \fIheader()\fR and \fIpush_header()\fR
+methods as defined by the \f(CW\*(C`HTTP::Headers\*(C'\fR class. Normally it will be
+of some class that is a or delegates to the \f(CW\*(C`HTTP::Headers\*(C'\fR class.
+.Sp
+If no \f(CW$header\fR is given \f(CW\*(C`HTML::HeadParser\*(C'\fR will create an
+\&\f(CW\*(C`HTTP::Headers\*(C'\fR object by itself (initially empty).
+.IP "$hp\->header;" 4
+.IX Item "$hp->header;"
+Returns a reference to the header object.
+.ie n .IP "$hp\->header( $key )" 4
+.el .IP "$hp\->header( \f(CW$key\fR )" 4
+.IX Item "$hp->header( $key )"
+Returns a header value. It is just a shorter way to write
+\&\f(CW\*(C`$hp\->header\->header($key)\*(C'\fR.
+.SH "EXAMPLE"
+.IX Header "EXAMPLE"
+.Vb 9
+\& $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 $h\->title; # should print "Stupid example"
+.Ve
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+HTML::Parser, HTTP::Headers
+.PP
+The \f(CW\*(C`HTTP::Headers\*(C'\fR class is distributed as part of the
+\&\fIlibwww-perl\fR package. If you don't have that distribution installed
+you need to provide the \f(CW$header\fR argument to the \f(CW\*(C`HTML::HeadParser\*(C'\fR
+constructor with your own object that implements the documented
+protocol.
+.SH "COPYRIGHT"
+.IX Header "COPYRIGHT"
+Copyright 1996\-2001 Gisle Aas. All rights reserved.
+.PP
+This library is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.