1 /*
2  * This file is part of flex.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * Neither the name of the University nor the names of its contributors
15  * may be used to endorse or promote products derived from this software
16  * without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE.
22  */
23 
24 %{
25 /* The goal of this test is to verify that we are getting the counter-intuitive
26  * posix behavior of the repeat operator `{}'.
27  *
28  *  ab{3} -  In traditional flex, this matches "abbb".
29  *           In posix, this matches "ababab".
30  */
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include "config.h"
34 
35 #define NUM_TESTS 1
36 char * tests[NUM_TESTS] =  { "ababab"};
37 int main(void);
38 
39 int tests_ok[NUM_TESTS] =  { 0 };
40 
41 %}
42 
43 %option 8bit prefix="test"
44 %option nounput nomain noyywrap noinput
45 %option warn posix-compat
46 
47 
48 %%
49 
50 ab{3}    tests_ok[0] = 1; return 0;
51 .|\n     return 0;
52 
53 %%
54 
55 
56 int main ()
57 {
58     YY_BUFFER_STATE state;
59     int i;
60 
61     yyin = stdin;
62     yyout = stdout;
63 
64     /* Run the tests */
65     for (i=0; i < NUM_TESTS; i++){
66         printf("Testing: yy_scan_string(%s): ", tests[i]);
67         state = yy_scan_string(tests[i]);
68         yylex();
69         yy_delete_buffer(state);
70         printf("... %s\n", tests_ok[i] ? "OK" : "FAILED");
71     }
72 
73     for (i=0; i < NUM_TESTS; i++)
74         if (!tests_ok[i])
75             exit(1);
76 
77     printf("TEST RETURNING OK.\n");
78     return 0;
79 }
80