BrainFuck interpreter.

BrainFuck language interpreter. Provides a library for evaluation and an executable to evaluate brainfuck files. Evaluation happens under an arbitrary monad so programn can be evaluated doing IO to stdinstdout or in memory using the State monad.

haskell-brainfuck

Interpreter for the brainfuck programming language

haskel-brainfuck is distributed as a library, but it also includes an executable to run brainfuck programs. You can find haskell-brainfuck in Hackage

Usage

Library

import HaskBF.Eval
import qualified Data.ByteString.Lazy as BS
import Control.Monad.State

main = do
  -- The following will evaluate the file using stdin and stdout for I/O.
  -- Evaluation results in an EvalResult

  file <- BS.readFile "/path/to/file.bf"
  (EvalSuccess _) <- evalBS defaultIOMachine file
  print "ok"


  -- The following will evaluate the file using the State monad and input
  -- provided by input

  let input  = []
      output = []
      result = execState (evalStr simulatorMachine "+.>-.") (SimState input output)
  print $ simStateOutput result == [1, -1]

Executable

brainfuck fib.bf

Tests

You can run the test suite with

cabal test

Documentation

http://paraseba.github.io/haskell-brainfuck/