Implemented the Caesar class allowing Caesar

ciphers to be used

Caesar.py

@@ -15,38 +15,92 @@ class Caesar:
 		self.__shift = 0	#The amount that you need to shift each letter
 	#Sets shift and makes sure it is within the propper bounds
 	def __setShift(self, shiftAmount: int):
-		NotImplemented
+		self.__shift = shiftAmount % 26
 	#Sets the input string
 	def __setInputString(self, inputString: str):
-		NotImplemented
+		self.__inputString = inputString
 	#Encodes the inputString and stores the result in outputString
 	def __encode(self) -> str:
-		NotImplemented
+		temp = 0	#A temperary holder for the current working character
+		for cnt in range(0, len(self.__inputString)):
+			temp = ord(self.__inputString[cnt])
+			#If it is an upper case letter shift it and wrap if necessary
+			if(chr(temp).isupper()):
+				temp += self.__shift
+				#Wrap around if the letter is now out of bounds
+				if(temp < ord('A')):
+					temp += 26
+				elif(temp > ord('Z')):
+					temp -= 26
+			#If it is a lower case letter shift it and wrap if necessary
+			elif(chr(temp).islower()):
+				temp += self.__shift
+				#Wrap around if the letter is now out of bounds
+				if(temp < ord('a')):
+					temp += 26
+				elif(temp > ord('z')):
+					temp -= 26
+
+			#If it is whitespace, number, or punctuation just let it pass through
+			#Add it to the output string
+			self.__outputString += chr(temp)
+		return self.__outputString
+			
 	#Decodes the inputString and stores the result in outputString
 	def __decode(self) -> str:
-		NotImplemented
+		temp = 0
+		for cnt in range(0, len(self.__inputString)):
+			temp = ord(self.__inputString[cnt])
+			#If it is an upper case letter shift it and wrap if necessary
+			if(chr(temp).isupper()):
+				temp -= self.__shift
+				if(temp < ord('A')):
+					temp += 26
+				elif(temp > ord('Z')):
+					temp -= 26
+			#If it is a lower case letter shift it and wrap if necessary
+			elif(chr(temp).islower()):
+				temp -= self.__shift
+				if(temp < ord('a')):
+					temp += 26
+				elif(temp > ord('z')):
+					temp -= 26
+			#If it is whitespace, number, or punctuation just let it pass through
+			#Add it to the output string
+			self.__outputString += chr(temp)
+		return self.__outputString
+
 	#Returns the inputString
 	def getInputString(self) -> str:
-		NotImplemented
+		return self.__inputString
 	#Returns the shift value
 	def getShift(self) -> int:
-		NotImplemented
+		return self.__shift
 	#Returns the outputString
 	def getOutputString(self) -> str:
-		NotImplemented
+		return self.__outputString
 	#Sets the shift and inputString and encodes the message
-	def encode(self, shiftAmount: int, input: str) -> str:
+	def encode(self, shiftAmount: int, inputStr: str) -> str:
-		NotImplemented
+		self.reset()
+		self.__setShift(shiftAmount)
+		self.__setInputString(inputStr)
+		return self.__encode()
 	#Sets the shift and inputString and decodes the message
-	def decode(self, shiftAmount: int, input: str) -> str:
+	def decode(self, shiftAmount: int, inputStr: str) -> str:
-		NotImplemented
+		self.reset()
+		self.__setShift(shiftAmount)
+		self.__setInputString(inputStr)
+		return self.__decode()
+
 	#Makes sure all of the variables are empty
 	def reset(self):
-		NotImplemented
+		self.__inputString = self.__outputString = ""
+		self.__shift = 0
+
 	#Returns the version of the library
 	@classmethod
 	def getVersion(cls) -> str:
-		NotImplemented
+		return cls.__version
 
 #This will run the appropriate commands if this script is called stand alone instead of with the rest of the PypherStream program
 if __name__ == "__main__":