diff --git a/palindrome.py b/palindrome.py index 848b164..e255d35 100644 --- a/palindrome.py +++ b/palindrome.py @@ -13,19 +13,25 @@ def parse_args(): 'palindrome')) parser.add_argument('-i', '--int', - nargs=1, required=True, help='The integer to be transformed.', type=int) + # NOTE: The argument must be an integer. Because of this constrain integers + # with leading zeroes will be stripped automatically in python 3. args = parser.parse_args() return args def main(): args = parse_args() - print(args.int) - print(Transform.palindrome(args.int)) - return args + if args.int <= 10000 and args.int > 0: + print('Input integer is: {}'.format(args.int)) + transform = Transform() + palindrome = transform.palindrome(args.int) + print("Final Output is:", palindrome) + return palindrome + else: + print("Input integer is not betweent 1 and 10000") if __name__ == '__main__': diff --git a/transform/Transform.py b/transform/Transform.py index 12a3432..ac926bc 100644 --- a/transform/Transform.py +++ b/transform/Transform.py @@ -6,6 +6,52 @@ class Transform(object): def __init__(self): super(Transform, self).__init__() - @staticmethod - def palindrome(int): - return int + def palindrome(self, int): + ''' + Kind of the main function. Checks if input int is already a palindrome + and trys calculation one if input integer is not already a palindrome. + ''' + self.input_int = int + if self.__is_palindrome(self.input_int): + print('Integer {} is a palindrome'.format(self.input_int)) + return self.input_int + else: + print('Integer {} is not a palindrome'.format(self.input_int)) + print('Calculating the palindrome for input {}'.format(self.input_int)) + palindrome = self.__calculate_palindrome() + return palindrome + + # The following methods are private. Signaled by the leading __ + def __is_palindrome(self, int_to_check): + reversed = self.__reverese_int(int_to_check) + if self.input_int == reversed: + return True + else: + return False + + def __reverese_int(self, int_to_reverse): + reversed = 0 + int_to_check = int_to_reverse + while int_to_check > 0: + reminder = int_to_check % 10 + reversed = (reversed * 10) + reminder + int_to_check = int_to_check // 10 + return reversed + + def __calculate_palindrome(self): + reversed = self.__reverese_int(self.input_int) + self.input_int = self.input_int + reversed + print('Possible palindrome is {}'.format(self.input_int)) + + if self.__is_palindrome(self.input_int) is True: + return self.input_int + + if self.__is_palindrome(self.input_int) is False: + return self.__try_again() + + def __try_again(self): + while self.input_int <= 1000000000: + self.__calculate_palindrome() + if self.input_int >= 1000000000: + print('Palindrome to be calculated is to big. Abort!') + return -1