Function rdf_canon::api::issue_quads_with
source · pub fn issue_quads_with<D: Digest>(
input_quads: &[Quad],
options: &CanonicalizationOptions
) -> Result<HashMap<String, String>, CanonicalizationError>
Expand description
Given some options (e.g., call limit), assigns deterministic identifiers to any blank nodes in the input quads and returns the assignment result as a map.
§Examples
use oxrdf::Quad;
use oxttl::NQuadsParser;
use rdf_canon::{issue_quads_with, CanonicalizationOptions};
use sha2::Sha256;
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 expected_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 input_quads: Vec<Quad> = NQuadsParser::new()
.parse_read(Cursor::new(input))
.map(|x| x.unwrap())
.collect();
let options = CanonicalizationOptions {
hndq_call_limit: Some(10000),
};
let issued_identifiers_map = issue_quads_with::<Sha256>(&input_quads, &options).unwrap();
assert_eq!(issued_identifiers_map, expected_map);