Brrain - A Ruby Brainf*** Interpreter

A weird language with an ugly name.

Brainf***

The Brainf*** language has eight instructions:

    >     Increment memory pointer
    <     Decrement memory pointer
    +     Increment number at pointer
    -     Decrement number at pointer
    ,     Input a byte and store it at pointer
    .     Output number at pointer as a byte
    [     Jump forward to matching ] if number at pointer is zero
    ]     Jump back to matching [ unless number at pointer is zero

For example, multiplying 6*7=42 and putting it out as an ASCII character (asterisk *) is:

    >++++++[<+++++++>-]<.

Zero is

[-]

Copying all standard input to standard output can be expressed as:

    ,+[-.,+]

You will find many more examples on the web but it is much more fun experiencing yourself.

Download

brrain.tar.gz
brrain.zip

License

These files are FREE SOFTWARE and underly the GNU General Public License (GPL). NO WARRANTY FOR NOTHING.

Software patents: The threat prevails. Please read further at FFII.

Author and maintainer: Bertram Scharpf

Latest update: Mon 07 Mär 2005 19:47:15 CET