NAME
HTML::Data::Parser - parses data embedded in HTML
SYNOPSIS
Be like Google! Google Rich Snippets supports RDFa, Microdata and
Microformats, so why shouldn't you?
use RDF::Trine;
use HTML::Data::Parser;
my $parser = HTML::Data::Parser->new(
parse_rdfa => 1,
parse_grddl => 0,
parse_microformats => undef,
parse_microdata => undef,
parse_n3 => undef,
parse_outline => 0,
);
my $model = RDF::Trine::Model->temporary_model;
my $writer = RDF::Trine::Serializer->new('RDFXML');
$parser->parse_into_model($base_uri, $markup, $model);
print $writer->serialize_model_to_string($model);
DESCRIPTION
This module parses data embedded in HTML. It understands the following
standards and patterns for embedding data:
* RDFa
* Microformats
* GRDDL
* Microdata
* N3-in-HTML
* HTML5 Document Outline
This module is just a wrapper around RDF::RDFa::Parser,
HTML::Microformats, XML::GRDDL, HTML::HTML5::Microdata::Parser,
HTML::Embedded::Turtle and HTML::HTML5::Outline. It is a subclass of
RDF::Trine::Parser so inherits the same interface as that.
Constructor
"new( %options )"
The options accepted are:
* dom_parser - set to 'xml' or 'html5' to determine which parser
to use on input strings. Defaults to 'html5'.
* named_graphs - boolean; whether to return quads to handler in
"parse" method. For advanced use only.
* on_error - what to do when an error occurs. (Currently only a
subset of all possible errors are covered by this option. Some
errors thrown by other modules won't be caught.) Set to 'warn',
'die', 'ignore' or a callback coderef (which is passed one
parameter - the error message as a string). Defaults to 'warn'.
* options_microdata - a hashref of options to pass through to
"HTML::HTML5::Microdata::Parser->new" if/when parsing microdata.
* options_outline - a hashref of options to pass through to
"HTML::HTML5::Outline->new" if/when parsing outlines.
* options_rdfa - an RDF::RDFa::Parser::Config object to use
if/when parsing RDFa.
* parse_grddl - a "troolean" (yes/no/maybe-so). Set to true to
indicate that you want GRDDL to be parsed. Set to false to
indicate that you want it to be ignored. Set to undef if you
don't really care: this will parse GRDDL if the required module
(XML::GRDDL) is installed and working, but won't complain if
it's not. Defaults to false.
* parse_microdata - another troolean. Defaults to undef.
* parse_microformats - another troolean. Defaults to undef.
* parse_n3 - another troolean. Defaults to undef.
* parse_outline - another troolean. Defaults to false.
* parse_rdfa - another troolean. Defaults to true.
Methods
"parse($base, $data, \&handler)"
Parses the data, given a base URI. The handler coderef is called for
each statement.
Other methods such as "parse_into_model", "parse_file" and
"parse_file_into_model" are inherited from RDF::Trine::Parser.
SEE ALSO
This module is just a wrapper around: RDF::RDFa::Parser,
HTML::Microformats, XML::GRDDL, HTML::HTML5::Microdata::Parser,
HTML::HTML5::Outline, HTML::Embedded::Turtle.
And around these DOM parsers: HTML::HTML5::Parser, XML::LibXML.
It sits on top of Trine: RDF::Trine, RDF::Trine::Parser,
RDF::TrineShortcuts.
For more information on processing web data in Perl:
.
AUTHOR
Toby Inkster .
COPYRIGHT
Copyright 2010-2011 Toby Inkster
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.