;;; test-lr-basics-02.scm -- | |
;; | |
;;A grammar that only accept a single terminal or the EOI. | |
;; | |
(load "common-test.scm") | |
(define (doit . tokens) | |
(let ((parser (lalr-parser (expect: 0) | |
(driver: glr) | |
(A) | |
(e (A) : $1 | |
() : 0)))) | |
(parser (make-lexer tokens) error-handler))) | |
(check | |
(doit) | |
=> '(0)) | |
(check | |
(doit (make-lexical-token 'A #f 1)) | |
=> '(1)) | |
(check | |
(doit (make-lexical-token 'A #f 1) | |
(make-lexical-token 'A #f 2) | |
(make-lexical-token 'A #f 3)) | |
=> '()) | |
;;; end of file | |