'rdf_db:rdf_file

Documentation
- Reference manual
- Packages
  - SWI-Prolog Semantic Web Library 3.0
    - Plugin modules for rdf_db
      - Hooks into the RDF library
        
        rdf_db:rdf_open_hook/3
        
        rdf_db:rdf_load_stream/3
        
        rdf_db:rdf_input_info/3
        
        rdf_db:rdf_file_type/2
        
        rdf_db:url_protocol/1

rdf_db:rdf_file_type(?Extension, ?Format)

True if Format is the default RDF file format for files with the given extension. Extension is lowercase and without a’.’. E.g. owl. Format is either a built-in format (xml or triples) or a format understood by the rdf_load_stream/3 hook.

Availability::- use_module(library(semweb/rdf_ntriples)).

[multifile]rdf_db:rdf_file_type(+Extension, -Format)

Bind the ntriples reader to files with the extensions nt, ntriples and nquads.