Run something. (This can run anything) A tab or 4 spaces should be inserted like this: R: do_nothing.c If the running thing doesn't have a header: Then, run a function. If the running is like this: R: CLASS: FUN Then, run the function in the class.
You can make a function. Like this: FUN: R: functioncode.c To call it, use it like this: R: MYFUNCTION
You can also make a class by this: CLASS: FUN: R: myfunction.c You can call it like this: R: CLASS: FUN
That Isn't necessary, but if you want your code to be longer, you certainly can do that. Like this: CLASS: FUN: R: myfunction.c :R :FUN :CLASS R: CLASS: FUN :CLASS :R
It is Turing-complete, because it can make a Brainfuck interpreter: R: interpreter.c How can't it be Turing-incomplete if it can make a Brainfuck interpreter?