Python 2.7.10 (default, Aug 28 2015, 09:49:42)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import re
>>> x = re.compile('cr([lj])\(([^!)]*)!?([^)]*)?\)')
>>>