link-rdflib/lib/data-factory.js

an RDF library for node.js, patched for speed.

'use strict';

var BlankNode = require('./blank-node');

var Collection = require('./collection');

var DefaultGraph = require('./default-graph');

var Fetcher = require('./fetcher');

var IndexedFormula = require('./store');

var Literal = require('./literal');

var NamedNode = require('./named-node');

var Statement = require('./statement');

var Variable = require('./variable');

function blankNode(value) {
  return BlankNode.find(value);
}

function collection(elements) {
  return new Collection(elements);
}

function defaultGraph() {
  return new DefaultGraph();
}

function fetcher(store, options) {
  return new Fetcher(store, options);
}

function graph() {
  return new IndexedFormula();
}

function lit(val, lang, dt) {
  return Literal.find('' + val, lang, dt);
}

function literal(value, languageOrDatatype) {
  if (typeof languageOrDatatype === 'string') {
    if (languageOrDatatype.indexOf(':') === -1) {
      return Literal.find(value, languageOrDatatype);
    } else {
      return Literal.find(value, null, namedNode(languageOrDatatype));
    }
  } else {
    return Literal.find(value, null, languageOrDatatype);
  }
}

function namedNode(value) {
  return NamedNode.find(value);
}

function quad(subject, predicate, object, graph) {
  graph = graph || new DefaultGraph();
  return Statement.from(subject, predicate, object, graph);
}

function st(subject, predicate, object, graph) {
  return Statement.from(subject, predicate, object, graph);
}

function triple(subject, predicate, object) {
  return quad(subject, predicate, object);
}

function variable(name) {
  return new Variable(name);
} // rdfjs spec factory methods


module.exports.blankNode = blankNode;
module.exports.defaultGraph = defaultGraph;
module.exports.graph = graph;
module.exports.literal = literal;
module.exports.namedNode = namedNode;
module.exports.quad = quad;
module.exports.triple = triple;
module.exports.variable = variable; // rdflib only

module.exports.collection = collection;
module.exports.fetcher = fetcher;
module.exports.lit = lit;
module.exports.st = st;