Set up environment for RDF parser

chrome/content/zotero/xpcom/rdf.js

@@ -1,6 +1,7 @@
 // Tweaks to get the Tabulator RDF library to work without Tabulator. All of this happens in the
 // Zotero.RDF.AJAW namespace.
-var kb = new RDFIndexedFormula();
-var tabulator = {log:{debug:function(arg) {
-	Zotero.debug(arg, 4);
-}}};
+$rdf.RDFIndexedFormula = $rdf.IndexedFormula;
+$rdf.RDFSymbol = $rdf.Symbol;
+$rdf.RDFBlankNode = $rdf.BlankNode;
+
+Zotero.RDF.AJAW = $rdf;

chrome/content/zotero/xpcom/rdf/init.js

@@ -0,0 +1,32 @@
+/* Set up the environment before loading the rest of the files into Zotero */
+var $rdf = {
+	Util: {
+		ArrayIndexOf: function (arr, item, i) {
+			//supported in all browsers except IE<9
+			return arr.indexOf(item, i);
+		},
+		RDFArrayRemove: function(a, x) {  //removes all statements equal to x from a
+		        for(var i=0; i<a.length; i++) {
+		            //TODO: This used to be the following, which didnt always work..why
+		            //if(a[i] == x)
+		            if (a[i].subject.sameTerm( x.subject ) && 
+		                a[i].predicate.sameTerm( x.predicate ) && 
+		                a[i].object.sameTerm( x.object ) &&
+		                a[i].why.sameTerm( x.why )) {
+		                a.splice(i,1);
+		                return;
+		            }
+		        }
+		        throw "RDFArrayRemove: Array did not contain " + x;
+		},
+	},
+};
+
+var tabulator = {
+	log: {
+		debug: Zotero.debug,
+		warn: Zotero.debug
+	}
+};
+
+var alert = tabulator.log.warn;

chrome/content/zotero/xpcom/translation/translate.js

@@ -2311,7 +2311,7 @@ Zotero.Translate.IO._RDFSandbox.prototype = {
 	 * Serializes the current RDF to a string
 	 */
 	"serialize":function(dataMode) {
-		var serializer = Serializer();
+		var serializer = Zotero.RDF.AJAW.Serializer(this._dataStore);
 		
 		for(var prefix in this._dataStore.namespaces) {
 			serializer.suggestPrefix(prefix, this._dataStore.namespaces[prefix]);

components/zotero-service.js

@@ -234,6 +234,7 @@ function makeZoteroContext(isConnector) {
 	
 	// Load RDF files into Zotero.RDF.AJAW namespace (easier than modifying all of the references)
 	const rdfXpcomFiles = [
+		'rdf/init',
 		'rdf/uri',
 		'rdf/term',
 		'rdf/identity',