Lightning fast, asynchronous, streaming Turtle / N3 / RDF
Notation3 or N3 is a superset of RDF, the Semantic Web language. This library will provide a high-performance N3 store, parser, and generator (when finished).
Currently implemented:
- streaming Turtle parser, fully compliant with the latest candidate recommendation
- high-performance N3 store
Parsing Turtle
The node-n3 library features a streaming Turtle parser, processing Turtle documents as they grow.
var parser = new n3.Parser();
parser.parse('@prefix c: <http://example.org/cartoons#>.\n' +
'c:Tom a c:Cat.\n' +
'c:Jerry a c:Mouse;\n' +
' c:smarterThan c:Tom.',
function (error, triple) {
if (triple)
console.log(triple.subject, triple.predicate, triple.object, '.');
else
console.log("# That's it, folks!")
});Storing and finding items
In this example below, we create a new store and add the triples :Pluto a :Dog. and :Mickey a :Mouse.
Then, we find a triple with :Mickey as subject.
var n3 = require('n3');
var store = new n3.Store();
store.add(':Pluto', 'a', ':Dog');
store.add(':Mickey', 'a', ':Mouse');
var mickey = store.find(':Mickey', null, null)[0];
console.log(mickey.subject, mickey.predicate, mickey.object, '.');
// :Mickey a :Mouse .Installation
You can install the n3 library as an npm package.
$ npm install n3Learn more
The Bringing reasoning to the Web page explains the origins of this project and provides pointers to related resources.
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