Module rdf_serializers 

RDF Format Serializers for QualiaDB

Serializes NQuin data to standard RDF formats: N-Triples, Turtle, N-Quads, TriG, N3, JSON-LD.

Terms are resolved through the shared resolver primitives (write_iri_term / write_object_term), so subjects/predicates render as <iri> and objects render as <iri> or a typed literal ("42"^^<…#integer>) exactly as in the N-Triples path. The grouped formats (Turtle/TriG/N3) additionally produce valid surface syntax — subject joined to its predicate–object list with ; separators and a single trailing ., not the previous malformed “subject .” per line.

Known boundary (shared by every path here, including N-Triples): a plain or language-tagged string literal that was interned into the lexicon at ingest is indistinguishable from an IRI at this layer and renders as <…>. Inline-typed literals (integer/decimal/boolean/float) are distinguished and render correctly. Resolving interned string literals to "…"@lang output is an ingest-layer concern (the term must carry its literal flag) tracked separately; it is not silently faked here.

Functions

serialize_to_cborld

Serialize Quins to CBOR-LD: a CBOR array of JSON-LD-shaped node maps ({"@id": <subject>, <predicate>: <object>}), one map per triple.

serialize_to_jsonld

Serialize Quins to JSON-LD (expanded node objects, grouped by subject).

serialize_to_n3

Serialize Quins to N3 format.

serialize_to_nquads

Serialize Quins to N-Quads format (zero-heap via resolver).

serialize_to_ntriples

Serialize Quins to N-Triples format (zero-heap via resolver).

serialize_to_trig

Serialize Quins to TriG format (named graphs of Turtle blocks).

serialize_to_turtle

Serialize Quins to Turtle format.