Replace \x escape in C-strings to \u escape

change_x_to_u.py

import re
import sys


def replace_utf8(match):
    char = match.group(0)
    char = chr(int(char[2:4], 16)) + chr(int(char[6:8], 16))
    char = char.encode("raw_unicode_escape").decode()
    char = char.encode("unicode_escape").decode()
    char = char.replace("\\x", "\\u00")

    return char


with open(sys.argv[1]) as fp:
    for line in fp.readlines():
        line = re.sub(r'(\\x[0-9A-Z][0-9A-Z]\\x[0-9A-Z][0-9A-Z])', replace_utf8, line)
        print(line[:-1])