posix/regexbug1.c

   1 #include <error.h>
   2 #include <sys/types.h>
   3 #include <regex.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 int
   8 main (void)
   9 {
  10   regex_t re;
  11   regmatch_t ma[2];
  12   int reerr;
  13   int res = 0;
  14
  15   re_set_syntax (RE_DEBUG);
  16   reerr = regcomp (&re, "0*[0-9][0-9]", 0);
  17   if (reerr != 0)
  18     {
  19       char buf[100];
  20       regerror (reerr, &re, buf, sizeof buf);
  21       error (EXIT_FAILURE, 0, "%s", buf);
  22     }
  23
  24   if (regexec (&re, "002", 2, ma, 0) != 0)
  25     {
  26       error (0, 0, "\"0*[0-9][0-9]\" does not match \"002\"");
  27       res = 1;
  28     }
  29   puts ("Succesful match with \"0*[0-9][0-9]\"");
  30
  31   regfree (&re);
  32
  33   reerr = regcomp (&re, "[0a]*[0-9][0-9]", 0);
  34   if (reerr != 0)
  35     {
  36       char buf[100];
  37       regerror (reerr, &re, buf, sizeof buf);
  38       error (EXIT_FAILURE, 0, "%s", buf);
  39     }
  40
  41   if (regexec (&re, "002", 2, ma, 0) != 0)
  42     {
  43       error (0, 0, "\"[0a]*[0-9][0-9]\" does not match \"002\"");
  44       res = 1;
  45     }
  46   puts ("Succesful match with \"[0a]*[0-9][0-9]\"");
  47
  48   regfree (&re);
  49
  50   return res;
  51 }