Crate rdftk_io 

This crate provides traits for reading and writing Statements and Graphs as well as implementations of these for common representations.

The following are some well-known formats (see Wikipedia for a description of different serializations), support is indicated in the final column with an R for read support and W for write support. One additional module, dot allows for the creation of GraphViz dot files for a visualization of a graph’s structure.

Module	Name	MIME Type	R/W
nt	RDF 1.1 N-Triples; A line-based syntax for an RDF graph	application/n-triples	R+W
nq	RDF 1.1 N-Quads; A line-based syntax for RDF datasets	application/n-quads	W
turtle	RDF 1.1 Turtle; Terse RDF Triple Language	text/turtle	W
trig	RDF 1.1 TriG; RDF Dataset Language	application/trig
xml	RDF 1.1 XML Syntax	application/rdf+xml	W
json	RDF 1.1 JSON Alternate Serialization	application/rdf+json	W
n3	Notation3 (N3): A readable RDF syntax	text/rdf+n3	W
TBD	Binary RDF Representation for Publication and Exchange (HDT)	N/A
TBD	RDF Binary using Apache Thrift	application/x-binary-rdf
TBD	JSON-LD 1.1; A JSON-based Serialization for Linked Data	application/ld+json
TBD	RDFa Core 1.1 - Third Edition	text/html

Each module will also provide public constants NAME, FILE_EXTENSION, and MIME_TYPE.

Modules

dot

Provides for writing a Graph instance in the GraphViz dot file format.

json

Provides for writing a Graph instance in the W3C RDF 1.1 JSON Alternate Serialization (RDF/JSON) format.

n3

Provides for reading and writing a Graph instance in the proposed W3C Notation3 (N3), a readable RDF syntax, format.

nq

Provides for reading and writing a NamedGraph instance in the W3C RDF 1.1 N-Quads, a line-based syntax for RDF datasets, format.

nt

Provides for reading and writing a Graph instance in the W3C RDF 1.1 N-Triples, a line-based syntax for an RDF graph format.

trig

Provides for reading and writing a Graph instance in the W3C RDF 1.1 TriG, RDF Dataset Language format.

turtle

Provides for reading and writing a Graph instance in the RDF 1.1 Turtle, Terse RDF Triple Language, format.

xml

Provides for writing out in the RDF 1.1 XML Syntax format.

Macros

make_factory_options

Traits

DataSetWriter

GraphWriter

HasOptions

This trait is implemented by reader or writer types to attach option instances for configuration.

ObjectWriter

The trait implemented by types which write instances of T.