ATC #3 Grammar

""" This is a grammar file for the ATC #3 challenge by @MegaApuTurkUltra """

if        => "IF" condition result result

condition => result "EQUALS" result
           | result "LESSTHAN" result
           | result "GREATERTHAN" result

protect   => "PROTECT" reference

set       => "SET" reference result

number    => -?[0-9]+

reference => "@" result
           | "*" result
           | "EXECUTION_POINTER"
           | "DIRECTION"
           | "DATA1"
           | "DATA2"

result    => result [+-*/%] result
           | reference
           | number
           | "RANDOM"