






'''simple docstring'''




from __future__ import annotations







class       __lowercase					:

	def __init__(      self   :						str  ,					UpperCAmelCase_   :						int = 0):
			UpperCamelCase__				:					Optional[int]					=					key

	def      __UpperCamelCase							(      self   :						Optional[Any]  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			UpperCamelCase__				:					Tuple					=					key or self.__key or 1

			# make sure key is an appropriate size
			key %= 255

			return [chr(ord(UpperCAmelCase_) ^ key) for ch in content]

	def      __UpperCamelCase							(      self   :						Any  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			UpperCamelCase__				:					Optional[Any]					=					key or self.__key or 1

			# make sure key is an appropriate size
			key %= 255

			return [chr(ord(UpperCAmelCase_) ^ key) for ch in content]

	def      __UpperCamelCase							(      self   :						Any  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int = 0):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			UpperCamelCase__				:					List[str]					=					key or self.__key or 1

			# make sure key can be any size
			while key > 255:
					key -= 255

			# This will be returned
			UpperCamelCase__				:					Union[str, Any]					=					''

			for ch in content:
					ans += chr(ord(UpperCAmelCase_) ^ key)

			return ans

	def      __UpperCamelCase							(      self   :						Tuple  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int = 0):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			UpperCamelCase__				:					Union[str, Any]					=					key or self.__key or 1

			# make sure key can be any size
			while key > 255:
					key -= 255

			# This will be returned
			UpperCamelCase__				:					Dict					=					''

			for ch in content:
					ans += chr(ord(UpperCAmelCase_) ^ key)

			return ans

	def      __UpperCamelCase							(      self   :						Any  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int = 0):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			try:
					with open(UpperCAmelCase_) as fin, open('encrypt.out'  ,					'w+') as fout:
							# actual encrypt-process
							for line in fin:
									fout.write(self.encrypt_string(UpperCAmelCase_  ,					UpperCAmelCase_))

			except OSError:
					return False

			return True





	def      __UpperCamelCase							(      self   :						List[str]  ,					UpperCAmelCase_   :						str  ,					UpperCAmelCase_   :						int):
			assert isinstance(UpperCAmelCase_  ,					UpperCAmelCase_) and isinstance(UpperCAmelCase_  ,					UpperCAmelCase_)

			try:
					with open(UpperCAmelCase_) as fin, open('decrypt.out'  ,					'w+') as fout:
							# actual encrypt-process
							for line in fin:
									fout.write(self.decrypt_string(UpperCAmelCase_  ,					UpperCAmelCase_))

			except OSError:
					return False

			return True


# Tests
# crypt = XORCipher()
# key = 67

# # test encrypt
# print(crypt.encrypt("hallo welt",key))
# # test decrypt
# print(crypt.decrypt(crypt.encrypt("hallo welt",key), key))

# # test encrypt_string
# print(crypt.encrypt_string("hallo welt",key))

# # test decrypt_string
# print(crypt.decrypt_string(crypt.encrypt_string("hallo welt",key),key))

# if (crypt.encrypt_file("test.txt",key)):
#       print("encrypt successful")
# else:
#       print("encrypt unsuccessful")

# if (crypt.decrypt_file("encrypt.out",key)):
#       print("decrypt successful")
# else:
#       print("decrypt unsuccessful")












'''simple docstring'''




def       __UpperCAmelCase						(  lowerCamelCase_     ,      lowerCamelCase_)							->     list[str]:
		return [sentence[i : i + ngram_size] for i in range(len(lowerCamelCase_) - ngram_size + 1)]


if __name__ == "__main__":
		from doctest import testmod

		testmod()




