Try to export etb files from "Buddy Misson BOND" into a txt file

Buddy Mission BOND - Extract Text.py

#!/usr/bin/python3
# -*- coding: UTF-8 -*-
#
# Try to export etb files from "Buddy Misson BOND" into a txt file
#
# 用于从《搭档任务 秘密搜查组》的 etb 文件提取 txt 文本

import os
import struct

file_list = [i for i in os.listdir("./") if i.endswith(".etb")]

export_buffer = open("export.txt", "w", -1, "utf-8")

for file_name in file_list:
    export_buffer.write(f"{file_name}\n")
    with open(file_name, "rb") as read_buffer:
        count, = struct.unpack("<I", read_buffer.read(4))
        for s_id in range(count):
            tmp, = struct.unpack("<I", read_buffer.read(4))
            assert tmp == s_id
        for s_id in range(count):
            s_start, s_length = struct.unpack("<II", read_buffer.read(8))
            pos = read_buffer.tell()
            read_buffer.seek(count * 4 * 3 + 4 + s_start)
            string_bytes = read_buffer.read(s_length)
            assert(string_bytes[-1] == 0)
            # For Chinese, the encoding is "gbk", and for Korean, the encoding is "eur-kr".
            string = string_bytes[:-1].decode("shift-jis", errors="backslashreplace").replace("\n", "\\n")
            export_buffer.write(f"{s_id}\t{string}\n")
            read_buffer.seek(pos)

export_buffer.close()