brainfuck-go
A Brainfuck interpreter written in Go.
How Brainfuck works
Brainfuck is an esoteric programming language designed to have the simplest compiler possible. Beginning with a byte array with a length of 30 thousand, and a pointer to the first element, the programmer can perform 8 actions:
> - increment the data pointer (to point to the next cell to the right).
< - decrement the data pointer (to point to the next cell to the left).
+ - increment (increase by one) the byte at the data pointer.
- - decrement (decrease by one) the byte at the data pointer.
. - output the byte at the data pointer.
, - accept one byte of input, storing its value in the byte at the data pointer.
[ - if the byte at the data pointer is zero, then instead of moving the instruction pointer forward to the next command, jump it forward to the command after the matching ] command.
] - if the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching [ command.
Running locally
Requires Go to build.
git clone https://github.com/samuel-pratt/brainfuck-go.git
cd brainfuck-go
go build
./brainfuck-go hello_world.bfThanks to
Fireship, who's video introduced my to Brainfuck.
Steve Kemp, who's article was a huge help in writing the interpreter (and where I got the steps above from).