group_match_null_string_p 3665 regex.cpp      static boolean group_match_null_string_p(unsigned char **p,
group_match_null_string_p 4217 regex.cpp                    = group_match_null_string_p (&p1, pend, reg_info);
group_match_null_string_p 5281 regex.cpp            ret = group_match_null_string_p (&p1, end, reg_info);