use std::{env,process};

use op8d_lexemizer::rust_2018::lexemize::lexemize;

fn main() {
    let args: Vec<String> = env::args().collect();
    if args.len() != 2 {
        eprintln!("ERROR: Expected 2 args, got {}. Try:", args.len());
        eprint!("    cargo run --example lexemize-rs2018-arg -- ");
        eprintln!(r#""const ROUGHLY_PI: f32 = 3.14;""#);
        process::exit(1);
    }
    // See stackoverflow.com/a/60581271 and reddit.com/r/rust/comments/cfybfa
    let arg = env::args().nth(1).expect("ERROR: Missing argument");
    println!("{}", lexemize(Box::leak(arg.into_boxed_str())));
}