Hi Rustillians,
There was some very serious discussion on IRC about writing macros for
various esolangs (*obviously* very serious :P ), so I dived in and wrote
a simple one for brainfuck.
https://github.com/huonw/brainfuck_macro
Example:
#![feature(phase)]
#[phase(syntax)] extern crate brainfuck;
use std::io;
fn main() {
let hello_world = brainfuck!{
++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>
---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.
};
hello_world(&mut io::stdin(), &mut io::stdout());
}
It's pretty basic (the macro implementation is less than 200 lines), and
so probably makes a reasonable example of a procedural macro, especially
macros that wish to directly handle the token stream a macro receives
(rather than extracting Rust expressions etc. from it).
Huon
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