diff --git a/node_modules/c9/json-with-re.js b/node_modules/c9/json-with-re.js
new file mode 100644
index 00000000..e8f475db
--- /dev/null
+++ b/node_modules/c9/json-with-re.js
@@ -0,0 +1,28 @@
+/**
+ * JSON (de-)serializer with support for encosing regular expressions
+ */
+"use strict";
+
+exports.replacer = function(key, value) {
+    if (value instanceof RegExp)
+        return ("__REGEXP " + value.toString());
+    else
+        return value;
+};
+
+exports.reviver = function(key, value) {
+    if ((value + "").indexOf("__REGEXP ") == 0) {
+        var m = value.match(/__REGEXP \/(.*)\/(.*)?/);
+        return new RegExp(m[1], m[2]);
+    }
+    else
+        return value;
+};
+
+exports.stringify = function(value, space) {
+    return JSON.stringify(value, exports.replacer, space);
+};
+
+exports.parse = function(rext) {
+    return JSON.parse(rext, exports.reviver);
+};
\ No newline at end of file
diff --git a/node_modules/c9/json-with-re_test.js b/node_modules/c9/json-with-re_test.js
new file mode 100644
index 00000000..5ccb3ecb
--- /dev/null
+++ b/node_modules/c9/json-with-re_test.js
@@ -0,0 +1,27 @@
+/*global describe it before after beforeEach afterEach define*/
+"use strict";
+"use server";
+"use mocha";
+
+require("c9/inline-mocha")(module);
+
+var assert = require("assert-diff");
+var reJSON = require("./json-with-re");
+
+describe(__filename, function(){
+    it("should encode regular expressions", function() {
+        assert.deepEqual(reJSON.stringify({ foo: /foo/ }), '{"foo":"__REGEXP /foo/"}');
+        assert.deepEqual(reJSON.stringify({ foo: /foo\//gi }), "{\"foo\":\"__REGEXP /foo\\\\//gi\"}");
+    });
+    it("should decode regular expressions", function() {
+        assert.deepEqual(reJSON.parse('{"foo":"__REGEXP /foo/"}'), { foo: /foo/ });
+        assert.deepEqual(reJSON.parse("{\"foo\":\"__REGEXP /foo\\\\//gi\"}"), { foo: /foo\//gi });
+    });
+    it("should deal with null values", function() {
+         var o = {
+             foo: null,
+             bar: /dd/
+         };
+         assert.deepEqual(reJSON.parse(reJSON.stringify(o)), o);
+    });
+});