def make_decrypter(f1, f2, f3):
"""Generates a "decrypter" function.
>>> brutus3 = caesar_generator(3, sub)
>>> brutus2 = caesar_generator(2, sub)
>>> decrypter = make_decrypter(brutus2, mirror_letter, brutus3)
>>> decrypter('yxwv') # brutus3(mirror_letter(brutus2('y'))) = 'a'
'abcd'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
return lambda cs: f3(f2(f1(cs)))
def make_encrypter(f1, f2, f3):
"""Generates an "encrypter" that applies a specific set of encryption
functions on the message
>>> caesar3 = caesar_generator(3, add)
>>> caesar2 = caesar_generator(2, add)
>>> encrypter = make_encrypter(caesar2, mirror_letter, caesar3)
>>> encrypter('abcd') # caesar2(mirror_letter(caesar3('a'))) -> 'y'
'yxwv'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
return lambda ucs: f1(f2(f3(ucs)))
def make_decrypter(f1, f2, f3):
"""Generates a "decrypter" function.
>>> brutus3 = caesar_generator(3, sub)
>>> brutus2 = caesar_generator(2, sub)
>>> decrypter = make_decrypter(brutus2, mirror_letter, brutus3)
>>> decrypter('yxwv') # brutus3(mirror_letter(brutus2('y'))) = 'a'
'abcd'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
"*** YOUR CODE HERE ***"
return lambda word: f3(f2(f1(word)))
def make_decrypter(f1, f2, f3):
"""Generates a "decrypter" function.
>>> brutus3 = caesar_generator(3, sub)
>>> brutus2 = caesar_generator(2, sub)
>>> decrypter = make_decrypter(brutus2, mirror_letter, brutus3)
>>> decrypter('yxwv') # brutus3(mirror_letter(brutus2('y'))) = 'a'
'abcd'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
def decry(message):
return f3(f2(f1(message)))
return decry
def make_encrypter(f1, f2, f3):
"""Generates an "encrypter" that applies a specific set of encryption
functions on the message
>>> caesar3 = caesar_generator(3, add)
>>> caesar2 = caesar_generator(2, add)
>>> encrypter = make_encrypter(caesar2, mirror_letter, caesar3)
>>> encrypter('abcd') # caesar2(mirror_letter(caesar3('a'))) -> 'y'
'yxwv'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
"*** YOUR CODE HERE ***"
return lambda word: f1(f2(f3(word)))
def make_encrypter(f1, f2, f3):
"""Generates an "encrypter" that applies a specific set of encryption
functions on the message
>>> caesar3 = caesar_generator(3, add)
>>> caesar2 = caesar_generator(2, add)
>>> encrypter = make_encrypter(caesar2, mirror_letter, caesar3)
>>> encrypter('abcd') # caesar2(mirror_letter(caesar3('a'))) -> 'y'
'yxwv'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
def encry(message):
return f1(f2(f3(message)))
return encry
def make_decrypter(f1, f2, f3):
"""Generates a "decrypter" function.
>>> brutus3 = caesar_generator(3, sub)
>>> brutus2 = caesar_generator(2, sub)
>>> decrypter = make_decrypter(brutus2, mirror_letter, brutus3)
>>> decrypter('yxwv') # brutus3(mirror_letter(brutus2('y'))) = 'a'
'abcd'
"""
f1, f2, f3 = looper(f1), looper(f2), looper(f3)
"*** YOUR CODE HERE ***"
def decrypter(x):
return f3(f2(f1(x)))
return decrypter