case 'r':
    case 'R':
        if (!*key || !strcasecmp(key, "edirect")) {        /* redirect */
            int status = 0;

            cfg->flags |= RULEFLAG_FORCEREDIRECT;
            if (strlen(val) > 0) {
                if (strcasecmp(val, "permanent") == 0) {
                    status = HTTP_MOVED_PERMANENTLY;
                }
                else if (strcasecmp(val, "temp") == 0) {
                    status = HTTP_MOVED_TEMPORARILY;
                }
                else if (strcasecmp(val, "seeother") == 0) {
                    status = HTTP_SEE_OTHER;
                }
                else if (apr_isdigit(*val)) {
                    status = atoi(val);
                    if (status != HTTP_INTERNAL_SERVER_ERROR) {
                        int idx =
                            ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);

                        if (ap_index_of_response(status) == idx) {
                            return apr_psprintf(p, "RewriteRule: invalid HTTP "
                                                   "response code '%s' for "
                                                   "flag 'R'",
                                                val);
                        }
                    }
                    if (!ap_is_HTTP_REDIRECT(status)) {
                        cfg->flags |= (RULEFLAG_STATUS | RULEFLAG_NOSUB);
                    }
                }
                cfg->forced_responsecode = status;
            }
        }