diff --git a/lib/ace/anchor.js b/lib/ace/anchor.js
index 5622bf5c..c9c27dfe 100644
--- a/lib/ace/anchor.js
+++ b/lib/ace/anchor.js
@@ -100,50 +100,50 @@ var Anchor = exports.Anchor = function(doc, row, column) {
      *
      **/
     this.onChange = function(e) {
+        var delta = e.data;
+        var point = this.$getTransformedPoint(delta, {row: this.row, column: this.column});
+        this.setPosition(point.row, point.column, true);
+    };
+    
+    function $pointsInOrder(point1, point2, equalPointsInOrder) {
+        var bColIsAfter = equalPointsInOrder ? point1.column <= point2.column : point1.column < point2.column;
+        return (point1.row < point2.row) || (point1.row == point2.row && bColIsAfter);
+    }
+            
+    this.$getTransformedPoint = function (delta, point) {
         
-        function _pointsInOrder(point1, point2, equalPointsInOrder) {
-            var bColIsAfter = equalPointsInOrder ? point1.column <= point2.column : point1.column < point2.column;
-            return (point1.row < point2.row) || (point1.row == point2.row && bColIsAfter);
-        }
-                
-        function getTransformedPoint(delta, point, moveIfEqual) {
-            
-            // Get delta info.
-            var deltaIsInsert = (delta.action == 'insert')
-            var deltaRowShift = (deltaIsInsert ? 1 : -1) * (delta.range.end.row    - delta.range.start.row);
-            var deltaColShift = (deltaIsInsert ? 1 : -1) * (delta.range.end.column - delta.range.start.column);
-            var deltaStart    = delta.range.start;
-            var deltaEnd      = (deltaIsInsert ? deltaStart : delta.range.end); // Collapse insert range.
-            
-            // DELTA AFTER POINT: No change needed.
-            if (_pointsInOrder(point, deltaStart, moveIfEqual)) {
-                return {
-                    row: point.row,
-                    column: point.column
-                };
-            }
-            
-            // DELTA BEFORE POINT: Move point by delta shift.
-            if (_pointsInOrder(deltaEnd, point, !moveIfEqual)) {
-                return {
-                    row: point.row + deltaRowShift,
-                    column: point.column + (point.row == deltaEnd.row ? deltaColShift : 0)
-                };
-            }
-            
-            // DELTA ENVELOPS POINT (delete only): Move point to delta start.
-            if (delta.action != 'remove')
-                throw 'Delete action expected.';
-            
+        // Get delta info.
+        var moveIfEqual   = this.$insertRight;
+        var deltaIsInsert = (delta.action == 'insert')
+        var deltaRowShift = (deltaIsInsert ? 1 : -1) * (delta.range.end.row    - delta.range.start.row);
+        var deltaColShift = (deltaIsInsert ? 1 : -1) * (delta.range.end.column - delta.range.start.column);
+        var deltaStart    = delta.range.start;
+        var deltaEnd      = (deltaIsInsert ? deltaStart : delta.range.end); // Collapse insert range.
+        
+        // DELTA AFTER POINT: No change needed.
+        if ($pointsInOrder(point, deltaStart, moveIfEqual)) {
             return {
-                row: deltaStart.row,
-                column: deltaStart.column
+                row: point.row,
+                column: point.column
             };
         }
         
-        var delta = e.data;
-        var point = getTransformedPoint(delta, {row: this.row, column: this.column}, this.$insertRight);
-        this.setPosition(point.row, point.column, true);
+        // DELTA BEFORE POINT: Move point by delta shift.
+        if ($pointsInOrder(deltaEnd, point, !moveIfEqual)) {
+            return {
+                row: point.row + deltaRowShift,
+                column: point.column + (point.row == deltaEnd.row ? deltaColShift : 0)
+            };
+        }
+        
+        // DELTA ENVELOPS POINT (delete only): Move point to delta start.
+        if (delta.action != 'remove')
+            throw 'Delete action expected.';
+        
+        return {
+            row: deltaStart.row,
+            column: deltaStart.column
+        };
     };
 
     /**