BrainFuck

Installation

got get github.com/Amirhossein2000/brainfuck

Example

package main

import (
	"fmt"
	"github.com/Amirhossein2000/brainfuck"
	"io"
	"os"
)

func main() {
	interpreter := brainfuck.NewInterpreter(128, os.Stdin, os.Stdout)
	interpreter.AddOperation('*', func(codePointer, memPointer *int, mem, code []byte, reader io.Reader, writer io.Writer) {
		mem[*memPointer] *= 2
	})

	err := interpreter.Run()
	if err != nil {
		fmt.Println("interpreter err:", err.Error())
	}
}

    // if you want to have and command-line execute for more than once you can put the for
    for {
        err := interpreter.Run()
        if err != nil {
        fmt.Println("interpreter err:", err.Error())
    }
}

~ go run main.go
> ++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.
> Hello World!

Portability issues

Cell size

In the classic distribution, the cells are of 8-bit size (cells are bytes), and this is still the most common size, therefore I used the 8-bit in this implementation. Also, it's much easier to use the byte array.

Array size

It's configurable in this implementation.

    // in this example the memory size is 128
    interpreter := brainfuck.NewInterpreter(128, os.Stdin, os.Stdout)

End-of-line code

\n is the most common one, therefore I used it in this implementation. have any improvement in your mind please feel free to open an issue.