use std::io;
use std::io::Write;

mod tokenizer;
use tokenizer::tokenizer;

mod rpn;
use rpn::to_rpn;


fn main() {
  let stdin = io::stdin();
  let mut buffer = String::new();

  loop {
    print!("> ");
    io::stdout().flush().unwrap();

    stdin.read_line(&mut buffer).unwrap();

    let tokens = tokenizer(&buffer);
    let rpn = to_rpn(tokens);

    buffer.clear();
  }
}