Question

So I wrote a script that inputs a line of plaintext and a distance value and outputs an encrypted text using a Caesar cipher. The script should work for any printable characters:

plainText = input("Enter a message: ")

distance = int(input("Enter the distance value: "))

code = ""

for ch in plainText:

ordValue = ord(ch)

cipherValue = ordValue + distance

if cipherValue > 127:

cipherValue = distance - (127 - ordValue + 1)

code += chr(cipherValue)

print(code)

Now I need to Draw a structure chart for the scirpt. The program should include at least two function definitions other than the main function. How do I do this?

Answer 1

Screenshot

Program

#Method to get inputs and return plain text and distance value
def getInput():
    plainText = input("Enter a message: ")
    distance = int(input("Enter the distance value: "))
    return plainText,distance
#Method to convert the plain text into cipher
def convertCipher(plainText,distance):
    code = ""
    for ch in plainText:
        ordValue = ord(ch)
        cipherValue = ordValue + distance
        if cipherValue > 127:
            cipherValue = distance - (127 - ordValue + 1)
        code += chr(cipherValue)
    return code
#Method to run the program
def main():
    plainText,distance=getInput()
    code=convertCipher(plainText,distance)
    print(code)
main()

Output

Enter a message: Good Morining
Enter the distance value: 4
Kssh$Qsvmrmrk

Draw a structure chart