padrões e código Python NFA Matcher
class Binary(Regex):
def __init__(self, left, right, empty):
Regex.__init__(self, empty)
self.left = left
self.right = right
def reset(self):
self.left.reset()
self.right.reset()
Regex.reset(self)
class Alternative(Binary):
def __init__(self, left, right):
empty = left.empty or right.empty
Binary.__init__(self, left, right, empty)
def _shift(self, c, mark):
marked_left = self.left.shift(c, mark)
marked_right = self.right.shift(c, mark)
return marked_left or marked_right
Tarek Ahmed
