def repeater(self, value):
        """
        Define the repeater of the current chain part.

        :param value:
        :type value:
        :return:
        :rtype:
        """
        try:
            value = int(value)
            self.repeater_start = value
            self.repeater_end = value
            return self
        except ValueError:
            pass
        if value == '+':
            self.repeater_start = 1
            self.repeater_end = None
        if value == '*':
            self.repeater_start = 0
            self.repeater_end = None
        elif value == '?':
            self.repeater_start = 0
            self.repeater_end = 1
        else:
            match = re.match(r'\{\s*(\d*)\s*,?\s*(\d*)\s*\}', value)
            if match:
                start = match.group(1)
                end = match.group(2)
                if start or end:
                    self.repeater_start = int(start) if start else 0
                    self.repeater_end = int(end) if end else None
        return self
def repeater ( self , value ) : try : value = int ( value ) self . repeater_start = value self . repeater_end = value return self except ValueError : pass if value == '+' : self . repeater_start = 1 self . repeater_end = None if value == '*' : self . repeater_start = 0 self . repeater_end = None elif value == '?' : self . repeater_start = 0 self . repeater_end = 1 else : match = re . match ( r'\{\s*(\d*)\s*,?\s*(\d*)\s*\}' , value ) if match : start = match . group ( 1 ) end = match . group ( 2 ) if start or end : self . repeater_start = int ( start ) if start else 0 self . repeater_end = int ( end ) if end else None return self
Define the repeater of the current chain part.

        :param value:
        :type value:
        :return:
        :rtype: