#include<stdio.h>
 #include<regex.h>

 void main(int argc, char *argv[]) {
     regex_t regex;
     int res = regcomp (&regex, "[]0-9$*+?^]{1,63}", REG_EXTENDED);
     if(res)
         printf("error\n");
     else
         printf("success\n");
     res = regexec(&regex, argv[1], 0, NULL, 0);
     if (!res) {
         puts("Match\n");
     }
     else if (res == REG_NOMATCH) {
         puts("No match\n");
     }
     else {
         fprintf(stderr, "Regex match failed\n");
     }
     regfree (&regex);
 }