prefixmap

The prefixmap crate contains an RDF prefix map implementation, where a prefix map is a list of alias declarations associated with IRIs. For example, in Turtle syntax, a prefix map can be declared as follows:

@prefix schema: <https://schema.org/> .
@prefix : <https://example.org/> .

Usage

For example, we can create a prefix map:

#![allow(unused)]
fn main() {
use prefixmap::PrefixMap;
use std::collections::HashMap;

let mut prefix_map = PrefixMap::new();

let other_map: PrefixMap = HashMap::from([
    ("", "https://example.org/"),
    ("schema", "https://schema.org/")
]).try_into()?;
}

And then register some prefixes:

#![allow(unused)]
fn main() {
use rudof_iri::IriS;
use std::str::FromStr;

prefix_map.add_prefix("schema", IriS::new_unchecked("https://schema.org/"));
prefix_map.add_prefix("ex", IriS::new_unchecked("https://example.org/"));

// Also, we can register a prefix with the IriS type:
let default_iri = IriS::from_str("https://default.org/")?;
prefix_map.add_prefix("", default_iri);
}

This will allow use to qualify IRIs using the registered prefixes:

#![allow(unused)]
fn main() {
// This will return "schema:Person"
let person = IriS::from_str("https://schema.org/Person")?;
prefix_map.qualify(&person);
}

And, if you need it, you get a basic prefix map or the WikiData prefix map:

#![allow(unused)]
fn main() {
// Returns a basic prefix map
PrefixMap::basic();

// Returns the WikiData prefix map
PrefixMap::wikidata();
}

Dependents and dependencies

This create depends mostly on the rudof_iri and indexmap crates.

This create is also used by other rudof modules that needs IRIs functionality, such as:

• rudof_lib
• shacl
• shapes_converter
• shapes_comparator
• shex_ast
• shex_validation
• sparql_service
• rudof_rdf

Documentation

The crate documentation can be found here.