"""

codeDestroyer.py - Replaces semicolon(;) in files with Greek

Question Mark(;) that looks alike but shows syntax errors,

(since it is a different character) leaving the programmer

scratching their heads in confusion. ;-)

Usage: Put the file in the same folder as this script and run

"python3 codeDestroyer.py". Enter the full filename

(like helloWorld.c) in the prompt that follows.

"""

import sys

from os import path

import re

# Unicode symbols for semicolon and the Greek Question mark

semicolon = u'\u003b'

greekQmark = u'\u037e'

# Name of file

fileName = input('Enter the file name (like helloWorld.c):\n')

fileName = path.abspath(fileName)

if (not path.exists(fileName)) or path.islink(fileName):

print(f'\n{fileName} is not a valid file.\

Please enter a valid filename.')

sys.exit()

else:

# Open the file to be destroyed

destroyFile = open(fileName, 'r+')

# Replace the characters in contents

contents = destroyFile.read()

contents = re.sub(semicolon, greekQmark, contents)

print(f'Destroying {fileName}...')

# Overwrite on the original file

destroyFile.seek(0, 0)

destroyFile.write(contents)

destroyFile.close()

print(f'\n {fileName} destroyed successfully XD.')