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Catmandu::RDF(3pm) User Contributed Perl Documentation Catmandu::RDF(3pm)


Catmandu::RDF - Modules for handling RDF data within the Catmandu framework


Command line client "catmandu":

  catmandu convert RDF --url
                       --fix 'aref_query(dct_title,title)' to YAML
  catmandu convert RDF --file rdfdump.ttl to RDF --type turtle
  # For big file the only efficient option to convert RDF is by
  # transforming the input stream into triples and writing to NTriples
  # in the output
  catmandu convert convert RDF --triples 1 --type ttl to RDF --type NTriples < rdfdump.ttl

See documentation of modules for more examples.


Catmandu::RDF contains modules for handling RDF data within the Catmandu framework. RDF data is encoded/decoded in aREF <> as implemented with RDF::aREF. Please keep in mind that RDF is a graph-based data structuring format with specialized technologies such as SPARQL and triple stores. Using Catmandu::RDF to transform RDF to RDF (e.g. conversion from one RDF serialization to another) is possible but probably less performant than decent RDF tools. Catmandu::RDF, however, is more conventient to convert between RDF and other data formats.


Serialize RDF data (as RDF/XML, RDF/JSON, Turtle, NTriples, RDFa...)
Parse RDF data (RDF/XML, RDF/JSON, Turtle, NTriples...) or import from a SPARQL endpoint
Copy values of RDF data in aREF format to a new field


This module is based on Catmandu, RDF::aREF, RDF::Trine, and RDF::NS.


Copyright Jakob Voss, 2014-

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.


Jakob Voss, Patrick Hochstenbach

2019-02-19 perl v5.28.1