def test_to_letter_index(self):
expected = 0
actual = alphabet.to_letter_index('A')
self.assertEquals(expected, actual)
expected = 1
actual = alphabet.to_letter_index('B')
self.assertEquals(expected, actual)
expected = 25
actual = alphabet.to_letter_index('Z')
self.assertEquals(expected, actual)
def encipher(self, clearCharacter):
letterIndex = alphabet.to_letter_index(clearCharacter)
# encipher the character taking into account the current position of the rotor
encipheredCharacter = self.getLetterAtPosition(letterIndex)
print("\renciphering: " + clearCharacter)
print("\r" + self.wiring)
print("enciphered as: " + encipheredCharacter + "\r")
# take care of the offset
if self.getCurrentPosition() > 0:
letterIndex = alphabet.to_letter_index(encipheredCharacter)
letterIndex = alphabet.go_backwards(letterIndex, self.getCurrentPosition())
encipheredCharacter = alphabet.to_letter(letterIndex)
print("\r offset to :" + encipheredCharacter)
return encipheredCharacter
def setCurrentPosition(self, position):
currentLetter = ""
if str(position).isdigit():
self.currentPosition = position
else:
currentLetter = alphabet.go_backwards(position, self.getRingSetting())
self.setCurrentPosition(alphabet.to_letter_index(currentLetter))
def getAdjustedNotchPosition(self):
return alphabet.to_letter_index(self.getAdjustedNotch())
def setRingSetting(self, setting):
if str(setting).isdigit():
self.ringSetting = setting
else:
self.setRingSetting(alphabet.to_letter_index(setting))
def reflect(self, entryLetter):
letterIndex = alphabet.to_letter_index(entryLetter)
return self.wiring[letterIndex];