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|
=head1 NAME
HTML::Microformats::Format::RelEnclosure - the rel-enclosure microformat
=head1 SYNOPSIS
my @enclosures = HTML::Microformats::Format::RelEnclosure->extract_all(
$doc->documentElement, $context);
foreach my $e (@enclosures)
{
my $type = $l->get_type || 'unknown';
printf("%s (%s)\n"), $l->get_href, $type);
}
=head1 DESCRIPTION
HTML::Microformats::Format::RelEnclosure inherits from HTML::Microformats::Format_Rel. See the
base class definition for a description of property getter/setter methods,
constructors, etc.
=head2 Additional Method
=over 4
=item C<< $relenc->get_type() >>
Returns the media type (Content-Type) of the resource being linked to. This
is taken from the HTML 'type' attribute, so if that's not present, returns undef.
=back
=cut
package HTML::Microformats::Format::RelEnclosure;
use base qw(HTML::Microformats::Format_Rel);
use strict qw(subs vars); no warnings;
use 5.010;
use HTML::Microformats::Datatype::String qw(isms);
use Object::AUTHORITY;
BEGIN {
$HTML::Microformats::Format::RelEnclosure::AUTHORITY = 'cpan:TOBYINK';
$HTML::Microformats::Format::RelEnclosure::VERSION = '0.105';
}
sub new
{
my $class = shift;
my $self = $class->SUPER::new(@_);
$self->{'DATA'}->{'type'} = $self->{'element'}->getAttribute('type')
if $self->{'element'}->hasAttribute('type');
return $self;
}
sub format_signature
{
return {
'rel' => 'enclosure' ,
'classes' => [
['type', '?#'] ,
['href', '1#'] ,
['label', '1#'] ,
['title', '1#'] ,
] ,
'rdf:type' => [] ,
'rdf:property' => {} ,
}
}
sub profiles
{
return qw(http://purl.org/uF/rel-enclosure/0.1/);
}
sub add_to_model
{
my $self = shift;
my $model = shift;
my $enc = 'http://purl.oclc.org/net/rss_2.0/enc#';
$model->add_statement(RDF::Trine::Statement->new(
RDF::Trine::Node::Resource->new($self->context->document_uri),
RDF::Trine::Node::Resource->new("${enc}enclosure"),
RDF::Trine::Node::Resource->new($self->data->{'href'}),
));
$model->add_statement(RDF::Trine::Statement->new(
RDF::Trine::Node::Resource->new($self->data->{'href'}),
RDF::Trine::Node::Resource->new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
RDF::Trine::Node::Resource->new("${enc}Enclosure"),
));
$model->add_statement(RDF::Trine::Statement->new(
RDF::Trine::Node::Resource->new($self->data->{'href'}),
RDF::Trine::Node::Resource->new("${enc}type"),
RDF::Trine::Node::Literal->new(''.$self->data->{'type'}),
))
if defined $self->data->{'type'};
$model->add_statement(RDF::Trine::Statement->new(
RDF::Trine::Node::Resource->new($self->data->{'href'}),
RDF::Trine::Node::Resource->new("http://www.w3.org/2000/01/rdf-schema#label"),
$self->_make_literal($self->data->{'label'}),
));
$model->add_statement(RDF::Trine::Statement->new(
RDF::Trine::Node::Resource->new($self->data->{'href'}),
RDF::Trine::Node::Resource->new("http://purl.org/dc/terms/title"),
$self->_make_literal($self->data->{'title'}),
));
return $self;
}
1;
=head1 MICROFORMAT
HTML::Microformats::Format::RelEnclosure supports rel-enclosure as described at
L<http://microformats.org/wiki/rel-enclosure>.
The "title" attribute on the link, and the linked text are taken to be significant.
=head1 RDF OUTPUT
Data is returned using the RSS Enclosures vocabulary
(L<http://purl.oclc.org/net/rss_2.0/enc#>) and occasional other terms.
=head1 BUGS
Please report any bugs to L<http://rt.cpan.org/>.
=head1 SEE ALSO
L<HTML::Microformats::Format_Rel>,
L<HTML::Microformats>,
L<HTML::Microformats::Format::hAtom>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
Copyright 2008-2012 Toby Inkster
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=head1 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.
=cut
|
