brfck
An easy and expandable Brainfuck and another estoteric languages interpreter
Brainfuck
Brainfuck syntaxes
BrainFuck | BrainFuck++ | EZscript | RediScript |
---|---|---|---|
> | > | Next | L |
< | < | Prev | P |
+ | + | pLus | E |
- | - | Minus | D |
. | . | Output | I |
, | , | Input | |
[ | [ | Start | { |
] | ] | End | } |
# | Reset | R |
Learning Brainfuck
Designed by Urban Müller in 1993, Brainfuck is a Turing-complete programming language made of eight instructions, each a single character in length, and no operands:
> : increments the data pointer
< : decrements the data pointer
+ : increases byte-value at the data pointer by one
- : decreases byte-value at the data pointer by one
. : converts the byte-value at the data pointer into an ASCII character
, : accepts input an stores it's byte-value at the data pointer
[ : if the byte-value at the data pointer is zero, jump forward to the instruction after the matching ']'
] : if the byte-value at the data pointer is non-zero, jump back to the instruction after the matching '['
HQ9+
Commands
H : prints "Hello, world!"
Q : prints program source code
9 : prints the lyrics to 99 Bottles of Beer
+, P : add one to accumulator, useless