/usr/share/perl5/RDF/Query/Node/Resource.pm is in librdf-query-perl 2.918-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | # RDF::Query::Node::Resource
# -----------------------------------------------------------------------------
=head1 NAME
RDF::Query::Node::Resource - RDF Node class for resources
=head1 VERSION
This document describes RDF::Query::Node::Resource version 2.918.
=cut
package RDF::Query::Node::Resource;
use strict;
use warnings;
no warnings 'redefine';
use base qw(RDF::Query::Node RDF::Trine::Node::Resource);
use URI;
use Encode;
use Data::Dumper;
use RDF::Query::Parser::SPARQL;
use Scalar::Util qw(blessed reftype);
use Carp qw(carp croak confess);
######################################################################
our ($VERSION);
BEGIN {
$VERSION = '2.918';
}
######################################################################
=head1 METHODS
Beyond the methods documented below, this class inherits methods from the
L<RDF::Query::Node> and L<RDF::Trine::Node::Resource> classes.
=over 4
=cut
use overload '<=>' => \&_cmp,
'cmp' => \&_cmp,
'<' => sub { _cmp(@_) == -1 },
'>' => sub { _cmp(@_) == 1 },
'!=' => sub { _cmp(@_) != 0 },
'==' => sub { _cmp(@_) == 0 },
'+' => sub { $_[0] },
'""' => sub { $_[0]->sse },
;
sub _cmp {
my $a = shift;
my $b = shift;
return 1 unless blessed($b);
return -1 if ($b->isa('RDF::Query::Node::Literal'));
return -1 if ($b->isa('RDF::Trine::Node::Nil'));
return 1 if ($b->isa('RDF::Query::Node::Blank'));
return 0 unless ($b->isa('RDF::Query::Node::Resource'));
my $cmp = $a->uri_value cmp $b->uri_value;
return $cmp;
}
=item C<< as_sparql >>
Returns the SPARQL string for this node.
=cut
sub as_sparql {
my $self = shift;
my $PNLOCAL = $RDF::Query::Parser::SPARQL::r_PN_LOCAL;
my $context = shift || {};
if ($context) {
my $uri = $self->uri_value;
my $ns = $context->{namespaces} || {};
my %ns = %$ns;
foreach my $k (keys %ns) {
no warnings 'uninitialized';
if ($k eq '__DEFAULT__') {
$k = '';
}
my $v = $ns{ $k };
if (index($uri, $v) == 0) {
my $local = substr($uri, length($v));
if ($local =~ /^(?:$PNLOCAL)$/) {
my $qname = join(':', $k, $local);
return $qname;
}
}
}
}
my $string = URI->new( encode_utf8($self->uri_value) )->canonical;
my $sparql = '<' . $string . '>';
return $sparql;
}
=item C<< as_hash >>
Returns the query as a nested set of plain data structures (no objects).
=cut
sub as_hash {
my $self = shift;
my $context = shift;
return {
type => 'node',
iri => $self->uri_value,
};
}
1;
__END__
=back
=head1 AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>
=cut
|