begin writing parser

Author: anand-bala

argus-parser/Cargo.toml

@@ -6,4 +6,4 @@ edition = "2021"
 [dependencies]
 argus-core = { version = "0.1.0", path = "../argus-core" }
 ariadne = "0.3.0"
-chumsky = "0.9.2"
+chumsky = "1.0.0-alpha.4"

argus-parser/src/lexer.rs

@@ -0,0 +1,41 @@
+use std::collections::HashMap;
+use std::{env, fmt, fs};
+
+use ariadne::{sources, Color, Label, Report, ReportKind};
+use chumsky::prelude::*;
+
+pub type Span = SimpleSpan<usize>;
+
+#[derive(Clone, Debug, PartialEq)]
+pub enum Token<'src> {
+    Semicolon,
+    LBracket,
+    RBracket,
+    LParen,
+    RParen,
+    Comma,
+    Bool(bool),
+    Num(&'src str),
+    Ident(&'src str),
+    Minus,
+    Plus,
+    Times,
+    Divide,
+    Lt,
+    Le,
+    Gt,
+    Ge,
+    Eq,
+    Neq,
+    Assign,
+    Not,
+    And,
+    Or,
+    Implies,
+    Xor,
+    Equiv,
+    Next,
+    Always,
+    Eventually,
+    Until,
+}

argus-parser/src/lib.rs

@@ -1,16 +1,5 @@
 //! # Argus logic syntax
+#![allow(dead_code)]
 
-pub fn add(left: usize, right: usize) -> usize {
-    left + right
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
-}
+mod lexer;
+mod parser;

argus-parser/src/parser.rs

@@ -0,0 +1 @@
+