posix/bug-regex24.c

   1 #include <regex.h>
   2 #include <stdio.h>
   3
   4 #define str "civic"
   5
   6 #define N 10
   7 static const char *expected[N] =
   8   {
   9     str, "c", "i", "", "", "", "", "", "", ""
  10   };
  11
  12 static int
  13 do_test (void)
  14 {
  15   regex_t rbuf;
  16   static const char pat[] = "\
  17 ^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$";
  18
  19   int err = regcomp (&rbuf, pat, REG_EXTENDED);
  20   if (err != 0)
  21     {
  22       char errstr[300];
  23       regerror (err, &rbuf, errstr, sizeof (errstr));
  24       puts (errstr);
  25       return err;
  26     }
  27
  28   regmatch_t m[N];
  29   err = regexec (&rbuf, str, N, m, 0);
  30   if (err != 0)
  31     {
  32       puts ("regexec failed");
  33       return 1;
  34     }
  35
  36   int result = 0;
  37   for (int i = 0; i < N; ++i)
  38     if (m[i].rm_so == -1)
  39       {
  40         printf ("m[%d] unused\n", i);
  41         result = 1;
  42       }
  43     else
  44       {
  45         int len = m[i].rm_eo - m[i].rm_so;
  46
  47         printf ("m[%d] = \"%.*s\"\n", i, len, str + m[i].rm_so);
  48
  49         if (strlen (expected[i]) != len
  50             || memcmp (expected[i], str + m[i].rm_so, len) != 0)
  51           result = 1;
  52       }
  53
  54   return result;
  55 }
  56
  57 #define TIMEOUT 30
  58 #define TEST_FUNCTION do_test ()
  59 #include "../test-skeleton.c"