Racket Package rdf-io

A more complete set of RDF I/O procedures than the rdf-core package.

Status

Pri.	Representation	Writer	Reader	Comments
1	N-Triples	Complete	Complete	Line-Oriented, triples only.
1	Turtle	Started	Not Started	Probably the most common syntax in common use.
2	RDF/XML	Complete	Started	Part of the RDF core specifications.
2	N-Quads	Complete	Complete	Effectively N-Triples + Graphs.
2	TriG	Started	Not Started	Effectively Turtle + Graphs.
3	RDF/JSON	Complete	Complete	Graph/Statement oriented, tree structured.
3	TriX	Complete	Complete	Dataset oriented, very direct mapping.
4	Tabular	Complete	N/A	Just for output/test/debug.
4	JSON-LD	Not Started	Not Started	Complex, a super-set of RDF.
4	Notation-3	Not Started	Not Started	Superset of Turtle with non-RDF features.

Example

TBD

(define int-42 (make-typed-literal "42" (string->url "http://www.w3.org/2001/XMLSchema#integer")))

(define *test-graph*
  (named-graph
   (string->url "http://example.com/peeps")
   (statement-list "http://example.com/p/me"
                   (list (list "http://example.com/v/people#hasFirstName" (list (make-lang-string-literal "Me" "en")))
                         (list "http://example.com/v/people#hasLastName" (list "!"))
                         (list "http://example.com/v/people#hasScores" (list 2 4 int-42))))))

(define (display-graph-as graph repr)
  (let* ((representation (get-representation repr))
         (graph-writer (representation-graph-writer representation)))
    (graph-writer graph)))

(display-graph-as *test-graph* 'trix)

Changes

Version 0.1.1

Initial release.

Representation	Writer	Reader
N-Triples	Complete	Complete
N-Quads	Complete	Complete
TriX	Complete	Complete
RDF/XML	Complete	Started
Tabular	Complete	N/A
Turtle	Started	Not Started
TriG	Started	Not Started

Version 0.1.0

Initial release.

Representation	Writer	Reader
N-Triples	Complete	Complete
N-Quads	Complete	Started
RDF/XML	Complete	Not Started
RDF/JSON	Complete	Not Started
TriX	Complete	Not Started
Turtle	Started	Not Started
TriG	Started	Not Started