These tools translate RDF files into ordinary Eyepl and queried rdf/4
facts back into RDF 1.2 N-Quads. Input formats are selected automatically from
the file extension. Supported inputs include RDF 1.2 Turtle, TriG, N-Triples,
N-Quads and RDF/XML, plus JSON-LD, RDFa, Microdata, Notation3 and SHACL Compact
Syntax. Eyepl remains RDF-agnostic.
node tools/rdf-to-eyepl.mjs --rules rules.pl data.nq -o program.pl
node bin/eyepl.js program.pl > derived.pl
node tools/eyepl-to-rdf.mjs derived.pl -o derived.nq
For standard input, specify an extension or media type with --format:
node tools/rdf-to-eyepl.mjs --format turtle --base https://example/ -o program.pl
Use --include-source when the result should contain input and derived quads.
Without it, the pipeline emits only derived quads. The lossless encoding uses
iri/1, scoped bnode/2, literal/2, triple/3, and default_graph.
Language annotations use lang/1; directional language annotations use
lang/2, with ltr or rtl as the second argument.
Triple terms may be nested. The reader accepts the RDF 1.2 VERSION "1.2"
directive and directional language strings while remaining compatible with
RDF 1.1 N-Triples and N-Quads.