From fbc038d5324b82b12bb686c84b9589fdac64a236 Mon Sep 17 00:00:00 2001
From: LethargicLeprechaun
 <64550669+LethargicLeprechaun@users.noreply.github.com>
Date: Wed, 29 Apr 2020 23:23:51 +0100
Subject: [PATCH] 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>
---
 ciphers/a1z26.py | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 ciphers/a1z26.py

diff --git a/ciphers/a1z26.py b/ciphers/a1z26.py
new file mode 100644
index 000000000..3684c8cb3
--- /dev/null
+++ b/ciphers/a1z26.py
@@ -0,0 +1,29 @@
+"""
+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()