Parse XMLLiteral object value is XML source, not DOM

When parsing an XMLLiteral object, the value of the object should be
normalized XML source, not the parsed XML DOM. This solution serializes
the dom childNodes back into source, but doesn’t yet do the
normalization. Normalization is required to allow equality to work on
XMLLiteral objects.

Author: Jim Amsden

rdfparser.js

@@ -250,6 +250,8 @@
         return true;
     };
 
+    var XMLSerializer = require('xmldom').XMLSerializer;
+
     this.parseDOM = function(frame){
          // a DOM utility function used in parsing
         var rdfid;
@@ -357,7 +359,14 @@
                             frame.datatype = RDFParser.ns.RDF + "XMLLiteral";// (this.buildFrame(frame)).addLiteral(dom)
                                // should work but doesn't
                             frame = this.buildFrame(frame);
-                            frame.addLiteral(dom);
+                            // The property value should be an XML string
+                            // TODO: The DOM should be normalized to support === before serializing 
+                            var serializer = new XMLSerializer();
+                            var value='';
+                            for (var c=0; c<dom.childNodes.length; c++) {
+                                value += serializer.serializeToString(dom.childNodes[c]);
+                            }
+                            frame.addLiteral(value);
                             dig = false;
                         }
                         else if (nv === "Resource"){