TheAlgorithms-Python/ciphers/a1z26.py
LethargicLeprechaun fbc038d532
Added A1Z26 Cipher (#1914)
* A1Z26 Cipher

* A1Z26 Cipher

* Added type hints

* Added Doctests

* removed tabs, spaces instead

* corrected doctest

* corrected doctest

* info URLs added

* Condensed decode to one line

* Condensed encode function to a single line

* Nice one!

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-04-30 00:23:51 +02:00

30 lines
683 B
Python

"""
Convert a string of characters to a sequence of numbers
corresponding to the character's position in the alphabet.
https://www.dcode.fr/letter-number-cipher
http://bestcodes.weebly.com/a1z26.html
"""
def encode(plain: str) -> list:
"""
>>> encode("myname")
[13, 25, 14, 1, 13, 5]
"""
return [ord(elem) - 96 for elem in plain]
def decode(encoded: list) -> str:
"""
>>> decode([13, 25, 14, 1, 13, 5])
'myname'
"""
return "".join(chr(elem + 96) for elem in encoded)
def main():
encoded = encode(input("->").strip().lower())
print("Encoded: ", encoded)
print("Decoded:", decode(encoded))
if __name__ == "__main__":
main()