yahbfs is yet another haskell brainfuck system.

It currently includes a simple interpreter and a non-optimizing compiler which produces C code, which can be given as input to a C compiler like gcc.

Future goals include a more efficient interpreter, a more sophisticated compilation system, and a visualizer/debugger.

If you are unfamiliar with the brainfuck programming language, see Wikipedia for a clear, concise and exhaustive explanation.

I've striven to make the source code readable (and it is commented extensively). If anything is confusing, or if you have a suggestion (or even better, code!) to improve yahbfs, please tell me.

Notes

If you enter multiple bytes when the program is expecting just one, the other bytes remain in the buffer, and will be passed to future calls to ','. This is intended behavior, but may be surprising.

Byte arithmetic is modulo 256; overflow is not an exception.

In fact, a program without syntax errors (i.e. mismatched braces) should never encounter any runtime error. Syntax errors are caught at compile-time; the user receives a descriptive error message and the faulty program is rejected.

License

yahbfs is licensed under the WTFPL, a permissive free software license. See LICENSE.