#!/usr/bin/env python

from dfareg import Regexp, CallGraph
from cTranslator import CTranslator

class CbCTranslateExeption(Exception):
    pass

class CbCTranslator(CTranslator):
    """
    CbCTranslator
    >>> string = \"(A|B)*C\"
    >>> reg = Regexp(string)
    >>> dfacg = CallGraph(reg.dfa)
    >>> ct = CbCTranslator(string, dfacg)
    >>> ct.translate()
    >>> ct.debug = True
    >>> ct.translate()
    """
    def __init__(self, regexp, cg):
        if cg.type == "NFA": raise CbCTranslateExeption("can't translate CbC from NFA")
        CTranslator.__init__(self, regexp, cg)
        self.funType = '__code '
        self.callType = 'goto '
        self.breakStatement = ''

def test():
    import doctest
    doctest.testmod()

if __name__ == '__main__' : test()