chg: refactored global encodeXml() method to JS

js/Global/encodeXml.js

@@ -0,0 +1,46 @@
+var encodeXml = function(str, buffer) {
+  str = String(str);
+
+  if (str === null || !str.length) return str;
+  if (!buffer) buffer = [];
+
+  for (var i = 0, len = str.length; i < len; i += 1) {
+    var char = str.charAt(i);
+
+    switch (char) {
+      case '<':
+      buffer.push('&lt;');
+      break;
+
+      case '>':
+      buffer.push('&gt;');
+      break;
+
+      case '&':
+      buffer.push('&amp;');
+      break;
+
+      case '"':
+      buffer.push('&quot;');
+      break;
+
+      case '\'':
+      buffer.push('&#39;');
+      break;
+
+      default:
+      var charCode = str.charCodeAt(i);
+      if (charCode < 0x20) {
+        // sort out invalid XML characters below 0x20 - all but 0x9, 0xA and 0xD.
+        // The trick is an adaption of java.lang.Character.isSpace().
+        if (((((1 << 0x9) | (1 << 0xA) | (1 << 0xD)) >> charCode) & 1) !== 0) {
+          buffer.push(char);
+        }
+      } else {
+        buffer.push(char);
+      }
+    }
+  }
+
+  return buffer.join('');
+}