Reto #24: Python

Retos/Reto #24 - CIFRADO CÉSAR [Fácil]/python/klyone.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+alphabet="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+def are_arguments_valid(text, n):
+    if n == 0 or abs(n) >= len(alphabet):
+        return False
+    else:
+        return True
+
+def prepare_text(text):
+    return text.upper()
+
+def translate_text(text, jumps):
+    translate = ""
+
+    for t in text:
+        if t in alphabet:
+            pos = alphabet.find(t)
+            pos = (pos + jumps) % len(alphabet)
+            t = alphabet[pos]
+
+        translate += t
+    return translate
+
+def encode_cesar(text, n):
+    if not are_arguments_valid(text, n):
+        return text
+
+    text = prepare_text(text)
+    return translate_text(text, n)
+
+def decode_cesar(text, n):
+    return encode_cesar(text, -n)
+
+if __name__ == "__main__":
+    print(encode_cesar("HELLO WORLD", 2))
+    print(decode_cesar(encode_cesar("NICE ONE", 5), 5))
+    print(encode_cesar("ThiS Is A WonderFULl PLaCE", 17))