release 1.10

EinzelfunktionenExperimentierbereich/Jägerzaun/jaegerzaun.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+# -*- coding: utf8 -*-
+test = "Hallo"
+t1r2 = "rank the code"
+t2r2 = "rn h oeaktecd"
+t3r3 = "coding"
+t4r3 = "cnoigd"
+t5r3 = "rank the code"
+t6r3 = "r  eaktecdnho"
+
+
+def array_ausgabe(arri: list):
+    for line in arri:
+        print("".join(line))
+    print()
+
+
+def encrypt(plain_text: str, rails: int):
+    arr = [["_" for _ in range(len(plain_text))] for _ in range(rails)]
+    r = 0
+    z = 0
+    plus = True
+    for b in plain_text:
+        arr[r][z] = b
+        z += 1
+        if r + 1 == rails and plus:
+            plus = False
+            r -= 1
+        elif r - 1 < 0 and not plus:
+            plus = True
+            r += 1
+        elif plus:
+            r += 1
+        else:
+            r -= 1
+    out = ""
+    for i in range(rails):
+        for j in range(len(plain_text)):
+            if arr[i][j] != "_":
+                out += arr[i][j]
+    print(out)
+    array_ausgabe(arr)
+
+
+def decrypt(cipher: str, rails: int):
+    arr = [["_" for _ in range(len(cipher))] for _ in range(rails)]
+    # cipher ins array reinbasteln
+    x, y = 0, 0
+    first_x = True
+    for b in cipher:
+        if x >= len(cipher) and y < rails:
+            y += 1
+            x = y
+            first_x = True
+        arr[y][x] = b
+        if y == 0 or (first_x and y != rails-1):
+            x = x + (rails - y - 1) * 2
+            first_x = False
+        elif y == rails-1 or first_x is False:
+            x = x + (y * 2)
+            first_x = True
+    array_ausgabe(arr)
+    # dekodierten Text aus array holen
+    out = ""
+    x, y = 0, 0
+    down = True
+    for i in range(len(cipher)):
+        out += arr[y][x]
+        x += 1
+        if down and y+1 == rails:
+            down = False
+            y -= 1
+        elif down:
+            y += 1
+        elif down is False and y == 0:
+            down = True
+            y += 1
+        elif down is False:
+            y -= 1
+    print(out)
+
+
+encrypt(t1r2, 2)
+decrypt(t2r2, 2)
+encrypt(t3r3, 3)
+decrypt(t4r3, 3)
+encrypt(t5r3, 3)
+decrypt(t6r3, 3)
+decrypt("cdroe", 2)