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//Fix missing polyfill in jsonld 1.0.0
String.prototype.endsWith = function(suffix) {
return this.indexOf(suffix, this.length - suffix.length) !== -1;
};
function setTimeout(fun){
fun();
}
/* V8 does not have network support, so we call back to R */
jsonld.documentLoaders.curl = function(options){
LINK_HEADER_REL = 'http://www.w3.org/ns/json-ld#context';
function loader(url, callback){
var res = console.r.call('jsonld:::download', {url : url});
var linkHeader = res.link;
var contentType = res.content_type;
var target = null;
// copied from 'jsonld.documentLoaders.jquery'
if(linkHeader && linkHeader.length && contentType !== 'application/ld+json') {
// First check for alternate location: https://www.w3.org/TR/json-ld11/#alternate-document-location
var linkdata = jsonld.parseLinkHeader(linkHeader);
if(linkdata && linkdata.alternate && linkdata.alternate.target){
var newurl = res.final_url + linkdata.alternate.target;
return loader(newurl, callback);
}
// Check for jsonld link: https://www.w3.org/TR/json-ld11/#interpreting-json-as-json-ld
var link_rel = linkdata[LINK_HEADER_REL];
if(Array.isArray(link_rel)) {
throw new JsonLdError(
'URL could not be dereferenced, it has more than one ' +
'associated HTTP Link Header.',
'jsonld.InvalidUrl',
{code: 'multiple context link headers', url: url});
}
if(link_rel) {
target = link_rel.target;
}
}
var doc = {contextUrl: target, documentUrl: res.final_url, document: JSON.parse(res.response_text)};
callback(null, doc);
}
return loader;
};
jsonld.useDocumentLoader('curl');
function store_value(err, val){
console.r.call('jsonld:::store_val', {set: {err : err, val : val}});
}
function store_json(err, val){
store_value(err, JSON.stringify(val, null, 2));
}
function r_compact(doc, context, options){
jsonld.compact(doc, context, options, store_json);
}
function r_expand(compacted, options){
jsonld.expand(compacted, options, store_json);
}
function r_flatten(doc, context, options){
jsonld.flatten(doc, context, options, store_json);
}
function r_frame(doc, frame, options){
jsonld.frame(doc, frame, options, store_json);
}
function r_normalize(doc, options){
jsonld.normalize(doc, options, store_value);
}
function r_to_rdf(doc, options){
jsonld.toRDF(doc, options, store_value);
}
function r_from_rdf(text, options){
jsonld.fromRDF(text, options, store_json);
}
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