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normalize-rml

This Node.js module normalizes an set of RML rules. It rewrites the following shortcuts:

  • rr:class
  • rr:object
  • rr:predicate

The rewritten version uses the appropriate Predicate Object, Predicate, and Object Maps.

Example

Consider the following triples.

ex:TM a rr:TriplesMap;
  rr:subjectMap ex:SM.
  
ex:SM a rr:SubjectMap;
  rr:class ex:Test.

The result of normalizing them gives

ex:TM a rr:TriplesMap;
  rr:subjectMap ex:SM;
  rr:predicateObjectMap ex:POM.
  
ex:SM a rr:SubjectMap.

ex:POM a rr:PredicateObjectMap;
  rr:predicateMap ex:PM;
  rr:objectMap ex:OM.
  
ex:PM a rr:PredicateMap;
  rr:constant rdf:type.
  
ex:OM a rr:ObjectMap;
  rr:constant ex:Test;
  rr:termType rr:IRI.

Usage

You can find an example in index.test.js.

Author

Ben De Meester