pub fn sort(dataset: &Dataset) -> Vec<Quad>
Expand description
Sort each quad from the canonicalized dataset into code point order.
§Examples
use oxrdf::{Dataset, Quad};
use oxttl::NQuadsParser;
use rdf_canon::{relabel, sort};
use std::collections::HashMap;
use std::io::Cursor;
let input = r#"
_:e0 <http://example.org/vocab#next> _:e1 _:g .
_:e0 <http://example.org/vocab#prev> _:e2 _:g .
_:e1 <http://example.org/vocab#next> _:e2 _:g .
_:e1 <http://example.org/vocab#prev> _:e0 _:g .
_:e2 <http://example.org/vocab#next> _:e0 _:g .
_:e2 <http://example.org/vocab#prev> _:e1 _:g .
"#;
let issued_identifiers_map = HashMap::from([
("g".to_string(), "c14n0".to_string()),
("e0".to_string(), "c14n1".to_string()),
("e1".to_string(), "c14n2".to_string()),
("e2".to_string(), "c14n3".to_string()),
]);
let expected = r#"
_:c14n1 <http://example.org/vocab#next> _:c14n2 _:c14n0 .
_:c14n1 <http://example.org/vocab#prev> _:c14n3 _:c14n0 .
_:c14n2 <http://example.org/vocab#next> _:c14n3 _:c14n0 .
_:c14n2 <http://example.org/vocab#prev> _:c14n1 _:c14n0 .
_:c14n3 <http://example.org/vocab#next> _:c14n1 _:c14n0 .
_:c14n3 <http://example.org/vocab#prev> _:c14n2 _:c14n0 .
"#;
let input_quads = NQuadsParser::new()
.parse_read(Cursor::new(input))
.map(|x| x.unwrap());
let input_dataset = Dataset::from_iter(input_quads);
let labeled_dataset = relabel(&input_dataset, &issued_identifiers_map).unwrap();
let canonicalized_quads = sort(&labeled_dataset);
let expected_quads: Vec<Quad> = NQuadsParser::new()
.parse_read(Cursor::new(expected))
.map(|x| x.unwrap())
.collect();
assert_eq!(canonicalized_quads, expected_quads);