PCRE_ERROR_UNSET  226 ext/pcre/pcrelib/pcre_fullinfo.c   if ((re->flags & PCRE_MLSET) == 0) return PCRE_ERROR_UNSET;
PCRE_ERROR_UNSET  231 ext/pcre/pcrelib/pcre_fullinfo.c   if ((re->flags & PCRE_RLSET) == 0) return PCRE_ERROR_UNSET;