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fix the bug issue when use large shift number difference #52

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Merged
merged 1 commit into from
Sep 15, 2021
Merged

fix the bug issue when use large shift number difference #52

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26 changes: 20 additions & 6 deletions Caesar_Cipher.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
text = input("Type your message:\n").lower()
shift = int(input("Type the shift number:\n"))


# print(len(alphabet))
# newText = text.split()
#
#
Expand Down Expand Up @@ -57,21 +57,35 @@ def encrypt(text, shift):
newEn = ''
for count in text:
en = alphabet.index(count) + shift
if en >= len(alphabet):
fw = alphabet.index("a") + shift
fw -= 1
lw = alphabet.index(count) - shift
newEn += alphabet[fw]
getLen = len(alphabet)
if en >= getLen:
total = en - getLen

fw = alphabet[total]
newEn += fw

# if en >= len(alphabet):
# fw = alphabet.index("a") + shift
# fw -= 1
# lw = alphabet.index(count) - shift
# newEn += alphabet[fw]
# newEn += alphabet[nw]
else:
newEn += alphabet[en]
# print(en)
# print(total)
# print(fw)
print(f"The encode text is {newEn}") # newEn)


def decrypt(text, shift):
deNew = ''
for check in text:
# meCheck = alphabet.index(check) + shift
# if meCheck >= 25:

# if alphabet[check] >= 25:
# alphabet.index('a')
getDecry = alphabet.index(check) - shift
deNew += alphabet[getDecry]

Expand Down