RDF::aREF - Another RDF Encoding Form
use RDF::aREF; my $rdf = { _id => 'http://example.com/people#alice', foaf_name => 'Alice Smith', foaf_age => '42^xsd_integer', foaf_homepage => [ { _id => 'http://personal.example.org/', dct_modified => '2010-05-29^xsd_date', }, 'http://work.example.com/asmith/', ], foaf_knows => { dct_description => 'a nice guy@en', }, }; decode_aref( $rdf, callback => sub { my ($subject, $predicate, $object, $language, $datatype) = @_; ... } ); my @lastmod = aref_query $rdf, 'foaf_homepage.dct_modified^'; my $model = RDF::Trine::Model->new; decode_aref( $rdf, callback => $model ); print RDF::Trine::Serializer->new('Turtle')->serialize_model_to_string($model); my $model = RDF::Trine::Model->new; RDF::Trine::Parser->parse_url_into_model($url, $model); my $aref = encode_aref $model;
aREF (another RDF Encoding Form) is an encoding of RDF graphs in form of arrays, hashes, and Unicode strings. This module provides methods for decoding from aREF data to RDF triples (RDF::aREF::Decoder), for encoding RDF data in aREF (RDF::aREF::Encoder), and for querying parts of an RDF graph (RDF::aREF::Query).
The following functions are exported by default.
Decodes an aREF document given as hash reference with RDF::aREF::Decoder. Equivalent to RDF::aREF::Decoder->new(%options)->decode($aref).
RDF::aREF::Decoder->new(%options)->decode($aref)
Construct an aREF subject mapfrom an RDF graph. The RDF::aREF::Encoder for possible options. The $graph can be supplied as:
$graph
instance of RDF::Trine::Model
instance of RDF::Trine::Model::Iterator
an URL or a filename (only if RDF::Trine is installed)
instance of Attean::API::TripleIterator (experimental)
instance of Attean::API::TripleStore (experimental)
hash reference with RDF/JSON format (as returned by method as_hashref in RDF::Trine::Model)
as_hashref
Query parts of an aREF data structure by aREF query expressions and return a list. See RDF::aREF::Query for details.
Map parts of an aREF data structure to a flat key-value structure.
aREF is specified at http://github.com/gbv/aREF.
See Catmandu::RDF for an application of this module.
Usee RDF::Trine for more elaborated handling of RDF data in Perl.
See RDF::YAML for a similar (outdated) RDF encoding in YAML.
Copyright Jakob Voss, 2014-
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install RDF::aREF, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RDF::aREF
CPAN shell
perl -MCPAN -e shell install RDF::aREF
For more information on module installation, please visit the detailed CPAN module installation guide.