parttimenerd / tiny-bf

A micro bf interpreter in some lines of Ruby.

tiny bf

A tiny brainf**ck implementation in ~19 lines of Ruby, with a REPL. Inspired by Fogus uLithp blog post

It implements a brainf**ck interpreter with a cell size of 7 bytes

See the tinybf.rb file for implementation details.

Embedded usage

The brainf**ck interpreter is just a Ruby class that evals expressions in Ruby string arrays, like so:

	
	echo_handler = lambda {|i| print i}
	get_handler = lambda { gets.chomp }
	 bf = Bf.new  

	 bf.eval ['[', '<', '+', '.', '>', '+', '+']
	 #
��������	
�
������������������ !"#$%&'()*+,-./0123456789:;<=>?@
	 #=> [64, 0] 

REPL usage

In your shell use Ruby 1.9.2 to run the REPL:

	ruby repl.rb

You'll then see a prompt:

>

Start typing brain**ck code:

Hello World program
>+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++++>-]
<.#>+++++++++++[<+++++>-]<.>++++++++[<+++>-]<.+++.------.--------.[-]>++++++++[
<++++>-]<+.[-]++++++++++.

When you want to leave the REPL, type exit

Have some fun...