* Future/Study
To fulfill Google code options:
** Google code input
Offers regula expression search like
 ^java/.*\.java$
and also:

Package		package:linux-2.6
Language		lang:c++
File Path		file:(code|[^or]g)search
Class		class:HashMap
Function		function:toString
License		license:mozilla
Case Sensitive		case:yes

** Reference
   http://www.rubyinside.com/21-ruby-tricks-902.html