♻️ Moved shifting function to utils

chapter_one/Verschiebe-Chiffre.py

@@ -1,3 +1,6 @@
+from utils import CipherUtils
+
+
 def encrypt_text(cleartext: str = 'Bitcoin', incrementation: int = 13):
     """
     This method encrypts a text by shifting each letter by the value of incrementation
@@ -30,28 +33,11 @@ def shift_text(cleartext: str, incrementation: int):
     shifted_text = ''
 
     for char in cleartext:
-        shifted_text += increment_char(char, incrementation)
+        shifted_text += CipherUtils.shift_char(char, incrementation)
 
     return shifted_text
 
 
-def increment_char(char, incrementation: int = 1):
-    """
-    This method shifts one char by the value of incrementation
-
-    :param char: Char to be shifted
-    :param incrementation: How much the char should be shifted
-    :return: Shifted letter
-    """
-    # converting character to byte
-    char_in_bytes = bytes(char, 'utf-8')[0]
-    if char_in_bytes + incrementation >= 91 and char_in_bytes < 91 \
-            or char_in_bytes + incrementation >= 123:  # z -> 122 | 90 -> Z so go backwards
-        new_char_in_bytes = bytes([char_in_bytes - (26 - incrementation)])
-    else:
-        new_char_in_bytes = bytes([char_in_bytes + incrementation])
-
-    return str(new_char_in_bytes)[2]
 
 
 def brute_force_example(cleartext: str = 'Bitcoin', incrementation: int = 7):

utils/CipherUtils.py

@@ -74,6 +74,25 @@ def transform_invalid_chars(input: str) -> str:
     return res
 
 
+def shift_char(char, incrementation: int = 1):
+    """
+    This method shifts one char by the value of incrementation
+
+    :param char: Char to be shifted
+    :param incrementation: How much the char should be shifted
+    :return: Shifted letter
+    """
+    # converting character to byte
+    char_in_bytes = bytes(char, 'utf-8')[0]
+    if char_in_bytes + incrementation >= 91 and char_in_bytes < 91 \
+            or char_in_bytes + incrementation >= 123:  # z -> 122 | 90 -> Z so go backwards
+        new_char_in_bytes = bytes([char_in_bytes - (26 - incrementation)])
+    else:
+        new_char_in_bytes = bytes([char_in_bytes + incrementation])
+
+    return str(new_char_in_bytes)[2]
+
+
 if __name__ == '__main__':
     print(
         calculate_frequency('Hier den Text eingeben, für den die Wahrscheinlichkeiten berechnet werden sollen', True))