#include <error.h> #include <sys/types.h> #include <regex.h> #include <stdio.h> #include <stdlib.h> int main (void) { regex_t re; regmatch_t ma[2]; int reerr; int res = 0; re_set_syntax (RE_DEBUG); reerr = regcomp (&re, "0*[0-9][0-9]", 0); if (reerr != 0) { char buf[100]; regerror (reerr, &re, buf, sizeof buf); error (EXIT_FAILURE, 0, "%s", buf); } if (regexec (&re, "002", 2, ma, 0) != 0) { error (0, 0, "\"0*[0-9][0-9]\" does not match \"002\""); res = 1; } puts ("Succesful match with \"0*[0-9][0-9]\""); regfree (&re); reerr = regcomp (&re, "[0a]*[0-9][0-9]", 0); if (reerr != 0) { char buf[100]; regerror (reerr, &re, buf, sizeof buf); error (EXIT_FAILURE, 0, "%s", buf); } if (regexec (&re, "002", 2, ma, 0) != 0) { error (0, 0, "\"[0a]*[0-9][0-9]\" does not match \"002\""); res = 1; } puts ("Succesful match with \"[0a]*[0-9][0-9]\""); regfree (&re); return res; }