Package Exports

@frogcat/ttl2jsonld
@frogcat/ttl2jsonld/ttl2jsonld.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@frogcat/ttl2jsonld) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@frogcat/ttl2jsonld

Turtle to JSON-LD converter for node.js and browser, no library dependencies.

Demo

Online demo is available here.

With this converter, you can obtain Output JSON-LD from Input Turtle, as shown in JSON-LD 1.0 Specification .

Input Turtle

@prefix foaf: <http://xmlns.com/foaf/0.1/> .

<http://manu.sporny.org/about#manu> a foaf:Person;
  foaf:name "Manu Sporny";
  foaf:homepage <http://manu.sporny.org/> .

Output JSON-LD

{
  "@context": {
    "foaf": "http://xmlns.com/foaf/0.1/"
  },
  "@id": "http://manu.sporny.org/about#manu",
  "@type": "foaf:Person",
  "foaf:name": "Manu Sporny",
  "foaf:homepage": { "@id": "http://manu.sporny.org/" }
}

Install

node.js

$ npm install @frogcat/ttl2jsonld

browser

<script src="https://frogcat.github.io/ttl2jsonld/ttl2jsonld.js"></script>

Usage

node.js

You can write your own code.

const ttl2jsonld = require('@frogcat/ttl2jsonld').parse;

const ttl = `@prefix foaf: <http://xmlns.com/foaf/0.1/> .

<http://manu.sporny.org/about#manu> a foaf:Person;
  foaf:name "Manu Sporny";
  foaf:homepage <http://manu.sporny.org/> .
`;

const jsonld = ttl2jsonld(ttl);

console.log(JSON.stringify(jsonld,null,2));

Command line interface is also available.

$ npm install @frogcat/ttl2jsonld
$ ttl2jsonld {input_turtle} > {output_jsonld}
or
$ cat {input_turtle} | ttl2jsonld > {output_jsonld}

browser

This converter is exported to ttl2jsonld global object. Call ttl2jsonld.parse(ttl) to perform conversion.

<!-- include ttl2jsonld.js -->
<script src="https://frogcat.github.io/ttl2jsonld/ttl2jsonld.js"></script>

<!-- run script -->
<script>
const ttl = `@prefix foaf: <http://xmlns.com/foaf/0.1/> .

<http://manu.sporny.org/about#manu> a foaf:Person;
  foaf:name "Manu Sporny";
  foaf:homepage <http://manu.sporny.org/> .
`;

const jsonld = ttl2jsonld.parse(ttl);

console.log(JSON.stringify(jsonld,null,2));
</script>

API

Given turtle_string, ttl2jsonld.parse returns JSON Object.

var json_object = ttl2jsonld.parse(turtle_string);

When you want to pass baseIRI, give second argument like this.

var json_object = ttl2jsonld.parse(turtle_string, {
  baseIRI : "http://example.org/"
});

For developers

building

Build with PEG.js.
Main code is spec/ttl2jsonld.pegjs.
When you edit code, run npm run build to generate ttl2jsonld.js.

testing

Tested with rdf-test-suite and https://w3c.github.io/rdf-tests/rdf/rdf11/rdf-turtle/manifest.ttl .
Currently 298 / 301 tests succeeded.
Run npm run spec-turtle to start rdr-test-suite.
Other miscellaneous tests are located in test/test.js, npm run test to run.