/usr/share/perl5/RDF/Trine/Parser/RDFa.pm is in librdf-trine-perl 1.019-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# -----------------------------------------------------------------------------
=head1 NAME
RDF::Trine::Parser::RDFa - RDFa Parser
=head1 VERSION
This document describes RDF::Trine::Parser::RDFa version 1.019
=head1 SYNOPSIS
use RDF::Trine::Parser;
my $parser = RDF::Trine::Parser->new( 'rdfa' );
$parser->parse_into_model( $base_uri, $data, $model );
=head1 DESCRIPTION
...
=head1 METHODS
Beyond the methods documented below, this class inherits methods from the
L<RDF::Trine::Parser> class.
=over 4
=cut
package RDF::Trine::Parser::RDFa;
use strict;
use warnings;
use base qw(RDF::Trine::Parser);
use Carp;
use Data::Dumper;
use Log::Log4perl;
use Scalar::Util qw(blessed reftype);
use Module::Load::Conditional qw[can_load];
use RDF::Trine qw(literal);
use RDF::Trine::Node;
use RDF::Trine::Statement;
use RDF::Trine::Error qw(:try);
######################################################################
our ($VERSION, $HAVE_RDFA_PARSER);
BEGIN {
$VERSION = '1.019';
if (can_load( modules => { 'RDF::RDFa::Parser' => 0.30 })) {
$HAVE_RDFA_PARSER = 1;
$RDF::Trine::Parser::parser_names{ 'rdfa' } = __PACKAGE__;
foreach my $ext (qw(html xhtml htm)) {
$RDF::Trine::Parser::file_extensions{ $ext } = __PACKAGE__;
}
my $class = __PACKAGE__;
$RDF::Trine::Parser::canonical_media_types{ $class } = 'application/xhtml+xml';
foreach my $type (qw(application/xhtml+xml text/html)) {
$RDF::Trine::Parser::media_types{ $type } = __PACKAGE__;
}
$RDF::Trine::Parser::format_uris{ 'http://www.w3.org/ns/formats/RDFa' } = __PACKAGE__;
}
}
######################################################################
=item C<< new ( options => \%options ) >>
Returns a new RDFa parser object with the supplied options.
=cut
sub new {
my $class = shift;
my %args = @_;
unless ($HAVE_RDFA_PARSER) {
throw RDF::Trine::Error -text => "Failed to load RDF::RDFa::Parser >= 0.30";
}
my $self = bless( { %args }, $class);
return $self;
}
=item C<< parse_into_model ( $base_uri, $data, $model [, context => $context] ) >>
Parses the bytes in C<< $data >>, using the given C<< $base_uri >>. For each RDF
statement parsed, will call C<< $model->add_statement( $statement ) >>.
=cut
=item C<< parse ( $base_uri, $rdf, \&handler ) >>
=cut
sub parse {
my $self = shift;
my $base = shift;
my $string = shift;
my $handler = shift;
my $parser = RDF::RDFa::Parser->new($string, $base, $self->{'options'});
$parser->set_callbacks({
ontriple => sub {
my ($p, $el, $st) = @_;
if (reftype($handler) eq 'CODE') {
if ($self->{canonicalize}) {
my $o = $st->object;
if ($o->isa('RDF::Trine::Node::Literal') and $o->has_datatype) {
my $value = $o->literal_value;
my $dt = $o->literal_datatype;
my $canon = RDF::Trine::Node::Literal->canonicalize_literal_value( $value, $dt, 1 );
$o = literal( $canon, undef, $dt );
$st->object( $o );
}
}
$handler->( $st );
}
return 1;
}
});
$parser->consume;
}
1;
__END__
=back
=head1 BUGS
Please report any bugs or feature requests to through the GitHub web interface
at L<https://github.com/kasei/perlrdf/issues>.
=head1 AUTHOR
Gregory Todd Williams C<< <gwilliams@cpan.org> >>
=head1 COPYRIGHT
Copyright (c) 2006-2012 Gregory Todd Williams. This
program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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