Comparison and Addition

Parser.java

    private Expr comparison() {
        Expr expr = addition();

        while (consuming(GREATER, GREATER_EQUAL, LESS, LESS_EQUAL)) {
            Token operator = previousToken();
            Expr right = addition();
            expr = new Expr.Binary(expr, operator, right);
        }
        return expr;
    }
    
    private Expr addition() {
        Expr expr = multiplication();

        while (consuming(MINUS, PLUS)) {
            Token operator = previousToken();
            Expr right = multiplication();
            expr = new Expr.Binary(expr, operator, right);
        }

        return expr;
    }