switched to lrpar parser generator

src/main.rs

@@ -1,10 +1,37 @@
-use lalrpop_util::lalrpop_mod;
+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;
 
-lalrpop_mod!(pub expressions);
+lrlex_mod!("grammar.l");
+lrpar_mod!("grammar.y");
 
-fn main() {
-    println!("Hello, world!");
+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()
+//     }
+// }