Sjisgrep is an enhanced binary string searcher which uses the Boyer-Moore string-search algorithm and multiple Japanese encodings (Shift JIS, EUC-JP and ISO-2022-JP) to find Japanese text in a binary file, e.g. video game ROMs.
Build the application and run sjisgrep followed by its arguments on the terminal.
Output of sjisgrep --help:
Binary grep with native support for searching in different Japanese encodings
Usage: sjisgrep [OPTIONS] <PATTERN> <FILE> [ENCODING]
Arguments:
<PATTERN> Pattern that will be searched in the binary
<FILE> Path of the binary
[ENCODING] Encoding of the pattern [default: shift-jis] [possible values: shift-jis, euc-jp, iso2022-jp, utf8]
Options:
-b, --beginning Return the address related to the first character of the string found, not the pattern
-h, --help Print help information
-V, --version Print version information
Source: Atelier Marie: The Alchemist of Salburg.
$ sjisgrep 参ったなぁ Marie\ no\ Atelier\ -\ Salburg\ no\ Renkinjutsushi\ \(Japan\)\ \(Track\ 1\).bin
0x1BEB0 "（…夢かぁ。参ったなぁ）"
The address returned (0x1BEB0) is the address of the first character of the pattern searched (参ったなぁ). If you need to get the address of the first character of the string found, use the -b flag:
$ sjisgrep -b 参ったなぁ Marie\ no\ Atelier\ -\ Salburg\ no\ Renkinjutsushi\ \(Japan\)\ \(Track\ 1\).bin
0x1BEA4 "（…夢かぁ。参ったなぁ）"
Source: Atelier Judie: The Alchemist of Gramnad.
Using the same command as the example above, it's possible to search for all instances of a string:
$ sjisgrep 調合 Judie\ no\ Atelier\ -\ Gramnad\ no\ Renkinjutsushi\ \(Japan\)\ \(v2.01\).iso
0x80D6B6 "液体を調合するときなどに使う。ガラスは溶けないので金属を溶かす薬品を扱うときにも便利。"
0x8117F6 "お婆さんのメモ帳によると「中和剤はニオイの少ない物ほど調合に役立つ」…らしい。"
0x81187E "お婆さんが残したメモ帳…なんだけど、２００年の時の流れで殆どが朽ちてなくなっちゃった。残ったのは本当に基本的な調合のレシピと、すっごく難しいレシピだけ。とほほ…。"
0x816168 "月は魔力を司るって言うけどね。ふふ…今ここで何か調合したら面白いことになるかしら…、ふふふ。"
0x82144E "これはさっきの調合失敗のせいね…。一体何が起こったんだろう…。"
0x8291AC "ユーディットは自分が調合に失敗して、２００年もの昔から飛ばされてきたことを話した…。"
0x82A5D0 "ユーディット。ちょっといい？…新しい薬を調合してみたんだけど、ちょっと味見してくれないかしら？"
There are more results, but I omitted them to save space.
Clone this repo and build it with cargo:
$ git clone https://github.com/laplus-sadness/sjisgrep.git
$ cd sjisgrep
$ cargo build --release
$ ./target/release/sjisgrep --version
0.1.0
- Wikipedia's C implementation of the Boyer-Moore string-search algorithm.
- Monkey-Moore application. The source code was not disclosed though.
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. See LICENSE for more details.