Add operator rule

schala-lang/language/src/parsing/new.rs

@@ -20,6 +20,10 @@ peg::parser! {
         rule expression_kind() -> ExpressionKind =
             primary()
 
+        //TODO maybe make this more complex
+        rule operator() -> &'input str =
+        $( ['+' | '-' | '*' | '/' | '%' | '<' | '>' | '=' | '!' | '$' | '&' | '?' | '^' | '`']+ )
+
         rule primary() -> ExpressionKind =
            float_literal() / nat_literal() / bool_literal() / string_literal() / paren_expr() /
            list_expr()