NST_NAMED_GROUP  1394 ext/mbstring/oniguruma/regparse.c     SET_ENCLOSE_STATUS(node, NST_NAMED_GROUP);
NST_NAMED_GROUP   148 ext/mbstring/oniguruma/regparse.h #define IS_ENCLOSE_NAMED_GROUP(en)     (((en)->state & NST_NAMED_GROUP)   != 0)