02-23-2007
I can use head -23 file to strip out my header, but how do I then step line by line through the rest of the file?
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LEARN ABOUT OSX
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="...">
$p->header('X-Meta-Author') # to access <meta name="author" content="...">
$p->header('X-Meta-Charset') # to access <meta charset="...">
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.
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:
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 containing a "name" attribute will result in headers using the prefix "X-Meta-" appended with the value of the
"name" attribute as the name of the header, and the value of the "content" attribute as the pushed header value.
<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.
METHODS
The following methods (in addition to those provided by the superclass) are available:
$hp = HTML::HeadParser->new
$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 is a or delegates to the "HTTP::Headers"
class.
If no $header is given "HTML::HeadParser" will create an "HTTP::Headers" 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. 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.
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 v5.16.2 2011-10-15 HTML::HeadParser(3)