RDFtk: Names

This crate provides a set of modules that contain the IRIs and QName strings for commonly used vocabularies. It also provides macro support for defining new namespaces in the same style as this library.

Vocabularies

Te following table shows the set of namespaces supported, those with "TBD" in the module column are yet to be encoded.

Module	Vocabulary	Namespace
dt::dcam	DCMI Abstract Model	http://purl.org/dc/dcam/
dt::dcmi_types	DCMI Type Vocabulary	http://purl.org/dc/dcmitype/
dt::elements'	DCMI Terms	http://purl.org/dc/elements/1.1/
dt::terms	DCMI Terms legacy elements	http://purl.org/dc/terms/
foaf	Friend of a Friend	http://xmlns.com/foaf/0.1/
geo	Basic Geo Vocabulary	http://www.w3.org/2003/01/geo/wgs84_pos#
owl	Web Ontology Language	http://www.w3.org/2002/07/owl#
rdf	RDF Syntax	http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs	RDF Schema	http://www.w3.org/2000/01/rdf-schema#
xsd	XML Schema data types	http://www.w3.org/2001/XMLSchema#
TBD	Simple Knowledge Organization System (SKOS)	http://www.w3.org/2004/02/skos/core#
TBD	PROV	http://www.w3.org/ns/prov#
TBD	RDF in Attributes (RDFa)	http://www.w3.org/ns/rdfa#
TBD	RDF Calendar	http://www.w3.org/2002/12/cal#
TBD	vCard Ontology	http://www.w3.org/2006/vcard/ns#
TBD	The Organization Ontology	http://www.w3.org/ns/org#
TBD	Creative Commons Rights Expression Language	http://creativecommons.org/ns#

The namespace Macro

The namespace! macro takes three parameters:

• The common prefix for the module,
• The namespace IRI for the module,
• A list of pairs where the first is the name of the function to return the IRI for the name, and the second is the string name of the vocabulary element.

Note that as this macro uses paste::item the client will need to have a dependency on the paste crate.

Example

The following example replicates the geo module using the namespace! macro.

#[macro_use]
extern crate rdftk_names;

use rdftk_names::Vocabulary;

namespace! {
    GeoSpatialVocabulary,
    "geo",
    "http://www.w3.org/2003/01/geo/wgs84_pos#",
    {
        spatial_thing, "SpatialThing",
        temporal_thing, "TemporalThing",
        event, "Event",
        point, "Point",
        lat, "lat",
        location, "location",
        long, "long",
        alt, "alt",
        lat_long, "lat_long"
    }
}

Changes

Version 0.2.4

• Fix: add comments to skos module members to remove build warnings.

Version 0.2.4

• Feature: add skos namespaces.

Version 0.2.3

• Feature: added missing date and hex_binary names in xsd namespace.

Version 0.2.2

• Feature: rename namespace_uri to simply namespace.
• Feature: new version of the iri package requires validation of names.
• Feature: add new $name _str function for namespace members.

Version 0.2.1

• Build: cargo audit/outdated/udeps

Version 0.2.0

• Feature: moved to new rdftk_iri package which uses the url::Url and is more efficient.
• Feature: performance improvements in the namespace and nsname macros.
• Feature: removed need for any use statements in either macro or client.
• Build: updated Rust edition from 2018 to 2021.
• Docs: run markuplint on README.md.

Version 0.1.9

• Build: rdftk_iri dependency reset to only major/minor.

Version 0.1.8

• Style:
  • applied a lot more warnings in lib.rs,
  • applied resulting warnings and Clippy suggestions,
  • reformatted macro layout.

Version 0.1.7

• Feature: added missing names in rdfs vocabulary.

Version 0.1.6

• Build: updated paste package dependency.

Version 0.1.5

• Build: explicit version management.

Version 0.1.3

• Feature: namespace macro now creates a local cache of Arc<IRI> instances to reduce memory consumption.

Version 0.1.2

• Feature: added rdf:li.

Version 0.1.1

• Feature: made nsname macro public.

Version 0.1.0

• First release.