Parser: check for unexpected readable-stream module behavior for node v0.8

lib/Parser.js

@@ -50,9 +50,17 @@ function Parser(stream, debug) {
 inherits(Parser, EventEmitter);
 
 Parser.prototype.setStream = function(stream) {
-  if (/^v0\.8\./.test(process.version))
-    stream = new ReadableStream().wrap(stream);
-
+  if (/^v0\.8\./.test(process.version)) {
+    var newStream = new ReadableStream(),
+        wrapped = newStream.wrap(stream);
+    // as of now, 07/02/2013, the readable-stream module is behind in updates
+    // and has different behavior for the return value of wrap() compared to
+    // node v0.10+, so we check for that here ...
+    if (wrapped)
+      stream = wrapped;
+    else
+      stream = newStream;
+  }
   this._stream = stream;
 };