use clap::Parser;
use ngr::syntax::{ParserError, Program};

#[derive(Parser, Debug)]
#[clap(author, version, about, long_about = None)]
struct CommandLineArguments {
    /// Optional output file name
    #[clap(short, long)]
    output: Option<String>,

    /// The file to parse
    file: String
}

fn real_main() -> Result<(), ParserError> {
    let args = CommandLineArguments::parse();

    let program = Program::from_file(&args.file)?;
    println!("args: {:?}", args);
    println!("program: {:?}", program);

    Ok(())
}

fn main() {
    if let Err(e) = real_main() {
        println!("{}", e);
    }
}