keyword_test.py 文件源码

def test_check_keywords(self):
        import parser

        grammar = '''
            @@keyword :: A

            start = {id}+ $ ;

            @name
            id = /\w+/ ;
        '''
        model = compile(grammar, 'test')
        c = codegen(model)
        parser.suite(c)

        ast = model.parse('hello world')
        self.assertEqual(['hello', 'world'], ast)

        try:
            ast = model.parse("hello A world")
            self.assertEqual(['hello', 'A', 'world'], ast)
            self.fail('accepted keyword as name')
        except FailedParse as e:
            self.assertTrue('"A" is a reserved word' in str(e))
            pass