Now you have two problems

Tim Sweeney ‏@TimSweeneyEpic 14 hours ago

I'm offering a $666 prize for a regular expression that matches only all regular expressions that don't match themselves.

https://twitter.com/TimSweeneyEpic/status/794750840837984256

func meta_regex_matcher(regex):
if regex_match(regex, to_string(regex))
return False
else
return True