htmlcopy(1p) [debian man page]

HTMLCOPY(1p)						User Contributed Perl Documentation					      HTMLCOPY(1p)

NAME

       htmlcopy -- Copy a HTML file without breaking links.

SYNOPSIS

	htmlcopy [OPTION] {SOURCE | -} [DESTINATION]

DESCRIPTION

       htmlcopy a source HTML file into DESTINATION. If the HTML file have links to images, other HTML files, javascripts and cascading style
       sheets, htmlcopy changing link path in the HTML file to keep the link destination.

       When DESTINATION is omitted, the modified HTML is written in the standard output. Also it is assumed that output location is the current
       working directory.

       SOURCE and DESTINATION should be cleanuped pathes. For example, a verbose path like '/aa/bb/../cc' may cause converting links wrongly. This
       is a limitaion of the URI module's rel method. To cleanup pathes, Cwd::realpath is useful.

OPTIONS

       -h, --help
	   Print a brief help message and exits.

       -m, --man
	   Prints the manual page and exits.

AUTHOR

       Tetsuro KURITA <tkurita@mac.com>

perl v5.8.8							    2008-03-16							      HTMLCOPY(1p)

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

NAME

       HTML::LinkExtor - Extract links from an HTML document

SYNOPSIS

	require HTML::LinkExtor;
	$p = HTML::LinkExtor->new(&cb, "http://www.perl.org/");
	sub cb {
	    my($tag, %links) = @_;
	    print "$tag @{[%links]}
";
	}
	$p->parse_file("index.html");

DESCRIPTION

       HTML::LinkExtor is an HTML parser that extracts links from an HTML document.  The HTML::LinkExtor is a subclass of HTML::Parser. This means
       that the document should be given to the parser by calling the $p->parse() or $p->parse_file() methods.

       $p = HTML::LinkExtor->new
       $p = HTML::LinkExtor->new( $callback )
       $p = HTML::LinkExtor->new( $callback, $base )
	   The constructor takes two optional arguments. The first is a reference to a callback routine. It will be called as links are found. If
	   a callback is not provided, then links are just accumulated internally and can be retrieved by calling the $p->links() method.

	   The $base argument is an optional base URL used to absolutize all URLs found.  You need to have the URI module installed if you provide
	   $base.

	   The callback is called with the lowercase tag name as first argument, and then all link attributes as separate key/value pairs.  All
	   non-link attributes are removed.

       $p->links
	   Returns a list of all links found in the document.  The returned values will be anonymous arrays with the following elements:

	     [$tag, $attr => $url1, $attr2 => $url2,...]

	   The $p->links method will also truncate the internal link list.  This means that if the method is called twice without any parsing
	   between them the second call will return an empty list.

	   Also note that $p->links will always be empty if a callback routine was provided when the HTML::LinkExtor was created.

EXAMPLE

       This is an example showing how you can extract links from a document received using LWP:

	 use LWP::UserAgent;
	 use HTML::LinkExtor;
	 use URI::URL;

	 $url = "http://www.perl.org/";  # for instance
	 $ua = LWP::UserAgent->new;

	 # Set up a callback that collect image links
	 my @imgs = ();
	 sub callback {
	    my($tag, %attr) = @_;
	    return if $tag ne 'img';  # we only look closer at <img ...>
	    push(@imgs, values %attr);
	 }

	 # Make the parser.  Unfortunately, we don't know the base yet
	 # (it might be different from $url)
	 $p = HTML::LinkExtor->new(&callback);

	 # Request document and parse it as it arrives
	 $res = $ua->request(HTTP::Request->new(GET => $url),
			     sub {$p->parse($_[0])});

	 # Expand all image URLs to absolute ones
	 my $base = $res->base;
	 @imgs = map { $_ = url($_, $base)->abs; } @imgs;

	 # Print them out
	 print join("
", @imgs), "
";

SEE ALSO

       HTML::Parser, HTML::Tagset, LWP, URI::URL

COPYRIGHT

       Copyright 1996-2001 Gisle Aas.

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

perl v5.18.2							    2013-03-25							HTML::LinkExtor(3)