/usr/share/perl5/RDF/Trine/Serializer/Notation3.pm is in librdf-trin3-perl 0.206-2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | package RDF::Trine::Serializer::Notation3;
use 5.010;
use strict;
use warnings;
use parent qw(RDF::Trine::Serializer::NTriples);
######################################################################
our ($VERSION);
BEGIN {
$VERSION = '0.206';
$RDF::Trine::Serializer::serializer_names{ 'notation3' } = __PACKAGE__;
$RDF::Trine::Serializer::serializer_names{ 'notation 3' } = __PACKAGE__;
foreach my $type (qw(text/n3)) {
$RDF::Trine::Serializer::media_types{ $type } = __PACKAGE__;
}
}
######################################################################
# these are inherited from RDF::Trine::Serializer::NTriples.
sub _node_as_string {
my $self = shift;
my $node = shift;
return $self->_formula_as_string($node)
if $node->isa('RDF::Trine::Node::Formula');
return $node->as_string
if $node->is_variable;
return $node->as_ntriples;
}
sub _statement_as_string {
my $self = shift;
my $st = shift;
return join(' ', map { $self->_node_as_string($_) } @{[$st->nodes]}[0..2]) . " .\n";
}
sub _formula_as_string {
my $self = shift;
my $node = shift;
my $rv = '';
if ($node->forAll) {
$rv .= "\t";
$rv .= '@forAll ' . join ', ', map {$self->_node_as_string($_) } $node->forAll;
$rv .= " .\n";
}
if ($node->forSome) {
$rv .= "\t";
$rv .= '@forSome ' . join ', ', map {$self->_node_as_string($_) } $node->forSome;
$rv .= " .\n";
}
foreach my $st ($node->pattern->triples) {
my $x = $self->_statement_as_string($st);
$x =~ s/^/\t/mg; # pretty
$rv .= $x;
}
return "{\n$rv}";
}
1;
__END__
=head1 NAME
RDF::Trine::Serializer::Notation3 - Notation 3 Serializer
=head1 SYNOPSIS
use RDF::Trine::Serializer::Notation3;
my $serializer = RDF::Trine::Serializer::Notation3->new();
=head1 DESCRIPTION
The RDF::Trine::Serializer::Notation3 class provides an API for serializing RDF
graphs to the Notation 3 syntax.
The output of this class is not optimised for human-readability; it's a data dump.
The only minor concession it makes to human readers is that it will nicely indent
formulae. I do have plans to port cwm's Notation 3 output to Perl, but this is likely
to be distributed separately due to licensing concerns.
I<Caveat scriptor:> while RDF::Trine::Node::Formula understands quantification
(@forAll, @forSome), RDF::Trine::Model does not. This means that @forAll and
@forSome defined in the top-level graph are not-round-tripped between the
Notation 3 parser and serialiser (the parser will give you warnings about this).
@forAll and @forSome within formulae will work fine.
=head2 Constructor
=over
=item C<< new >>
Returns a new Notation 3 serializer object.
=back
=head2 Methods
=over
=item C<< serialize_model_to_file ( $fh, $model ) >>
Serializes the C<$model> to Notation 3, printing the results to the supplied
filehandle C<<$fh>>.
=item C<< serialize_model_to_string ( $model ) >>
Serializes the C<$model> to Notation 3, returning the result as a string.
=item C<< serialize_iterator_to_file ( $file, $iter ) >>
Serializes the iterator to Notation 3, printing the results to the supplied
filehandle C<<$fh>>.
=item C<< serialize_iterator_to_string ( $iter ) >>
Serializes the iterator to Notation 3, returning the result as a string.
=back
=head1 BUGS
Please report any bugs to
L<http://rt.cpan.org/Dist/Display.html?Queue=RDF-TriN3>.
=head1 SEE ALSO
L<RDF::Trine::Serializer::NTriples>,
L<RDF::Trine::Serializer::Turtle>.
=head1 AUTHOR
Toby Inkster C<< <tobyink@cpan.org> >>
=head1 COPYRIGHT AND LICENCE
Copyright (c) 2010-2012 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
|