Major improvements in the XQuery syntax checking infrastructure.

lib/ace/mode/xquery/XQDTLexer.js

@@ -0,0 +1,28 @@
+define(function(require, exports, module){
+
+var org =  require("./antlr3-all").org;
+
+var XQDTLexer = exports.XQDTLexer = function(input, state)
+{
+  XQDTLexer.superclass.constructor.call(this, input, state);
+};
+
+org.antlr.lang.extend(XQDTLexer, org.antlr.runtime.Lexer, {
+
+  isWsExplicit: false,
+  
+  setIsWsExplicit: function (wsExplicit) {
+    isWsExplicit = wsExplicit;
+  },
+
+  addToStack: function (stack) {
+    stack.push(this);
+  },
+
+  rewindToIndex: function(index) {
+    var stream = this.input;
+    stream.seek(index);
+  }
+});
+
+});