Search and replace text in Steins;Gate 0

patches.json

[
  ["Rintaro Okabe", "Okabe Rintaro"],
  ["Mayuri Shiina", "Shiina Mayuri"],
  ["Itaru Hashida", "Hashida Itaru"],
  ["Kurisu Makise", "Makise Kurisu"],
  ["Moeka Kiryu", "Kiryu Moeka"],
  ["Luka Urushibara", "Urushibara Luka"],
  ["Suzuha Amane", "Amane Suzuha"],
  ["Yugo Tennouji", "Tennouji Yugo"],
  ["Nae Tennouji", "Tennouji Nae"],
  ["Yuki Amane", "Amane Yuki"],
  ["Rumiho Akiha", "Akiha Rumiho"],
  ["Maho Hiyajo", "Hiyajo Maho"],
  ["Kagari Shiina", "Shiina Kagari"],
  ["Katsumi Nakase", "Nakase Katsumi"],
  ["Kaede Kurushima", "Kurushima Kaede"]
]

sg0-patch.py

import json
import sys
import os
from string import ascii_uppercase, ascii_lowercase

if len(sys.argv) == 1:
	print("Drag the script.mpk file here and then hit enter. Also, make sure the patches.json file is next to this exe.")
	file = input()[1:-1]
else:
	file = sys.argv[1]

# Chdir to the same dir as the exe because patches.json is there
os.chdir(os.path.dirname(sys.argv[0]))

# Convert text to the byte string Steins;Gate 0 uses
def text_to_bytes(thing):
    ascii_numbers = "0123456789"
    ascii_punctuation = "  ,.:;?!  ‘’“”"  # TODO: get the actual characters

    convert = []

    for i in thing:
        convert.append(128)
        if i in ascii_uppercase:
            convert.append(ascii_uppercase.find(i) + 138)
        elif i in ascii_lowercase:
            convert.append(ascii_lowercase.find(i) + 164)
        elif i in ascii_numbers:
            convert.append(ascii_numbers.find(i) + 128)
        elif i == " ":
            convert.append(63)

    # print(bytes(convert))
    return bytes(convert)


with open(file, "rb") as f:
    data = f.read()

try:
    with open("patches.json", "r") as f:
        patches = json.load(f)
except FileNotFoundError:
    print("Make sure patches.json is next to the exe")
    print("Press enter to exit...")
    input()
    sys.exit(0)

for i in patches:
    print("Replaced", data.count(text_to_bytes(i[0])), "occurrences of", i[0], "to", i[1])
    data = data.replace(text_to_bytes(i[0]), text_to_bytes(i[1]))

with open(file, "wb") as f:
    f.write(data)

print("Press enter to exit...")
input()

Committee of Zero has now released their patch for SG0, making this redundant. Go check it out here http://sonome.dareno.me/projects/sg0-steam.html