Crate rio_turtle

Implementation of N-Triples, N-Quads, Turtle and TriG parsers.

All the provided parsers work in streaming from a BufRead implementation. They do not rely on any dependencies outside of Rust standard library. The parsers are not protected against memory overflows. For example if the parsed content contains a literal string of 16GB, 16GB of memory will be allocated.

How to read a file foo.ttl and count the number of rdf:type triples:

use rio_turtle::{TurtleParser, TurtleError};
use rio_api::parser::TriplesParser;
use rio_api::model::NamedNode;
use std::io::BufReader;
use std::fs::File;

let rdf_type = NamedNode { iri: "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" };
let mut count = 0;
TurtleParser::new(BufReader::new(File::open("foo.ttl").unwrap()), "file:foo.ttl").unwrap().parse_all(&mut |t| {
    if t.predicate == rdf_type {
        count += 1;
    }
    Ok(()) as Result<(), TurtleError>
}).unwrap();

Replace TurtleParser by NTriplesParser, NQuadsParser or TriGParser to read a N-Triples, N-Quads or TriG file instead.

NTriplesParser and NQuadsParser do not use the second argument of the new function that is the IRI of the file.

Structs

NQuadsFormatter	A N-Quads formatter.
NQuadsParser	A N-Quads streaming parser.
NTriplesFormatter	A Canonical N-Triples formatter.
NTriplesParser	A N-Triples streaming parser.
TriGFormatter	A TriG formatter.
TriGParser	A TriG streaming parser.
TurtleError	Error that might be returned during parsing.
TurtleFormatter	A Turtle formatter.
TurtleParser	A Turtle streaming parser.