fudge2.1/src/main.rs

use crate::errors::CLIArgumentError;
use lrlex::lrlex_mod;
use lrpar::lrpar_mod;
use std::error::Error;
use std::fmt::{Display, format};
use std::io;
use std::io::ErrorKind::InvalidInput;

mod ast;
mod errors;
mod optimising;
mod tests;

lrlex_mod!("grammar.l");
lrpar_mod!("grammar.y");

fn main() -> Result<(), Box<dyn Error>> {
    let src_path = std::env::args()
        .nth(1)
        .ok_or(Box::new(CLIArgumentError("Source File Not Provided")))?;
    let src_string = std::fs::read_to_string(&src_path)?;

    let lexerdef = grammar_l::lexerdef();

    let lexer = lexerdef.lexer((src_string.as_str()));
    let (res, errs) = grammar_y::parse(&lexer);
    if let Some(Ok(res)) = res {
        println!("{:#?}", res);
    }
    Ok(())
}

// fn main() {
//     if let Err(ref e) = main_() {
//         return e.fmt()
//     }
// }