2010 04 30 operators and regexp fun
@ThomasFuchs throws down this obfuscated beauty:
1 + + 1 // => 2
1 + - + 1 // => 0
1 + - + - + 1 // => 2
1 + - + - + - + 1 // => 0
1 + - + + + - + 1 // => 2
1 + / + + + / + 1 // => 1/ + + + /1