NSTR_AMBIG_REDUCE 89 mbstring/oniguruma/regparse.h #define NSTRING_SET_AMBIG_REDUCE(node) (node)->u.str.flag |= NSTR_AMBIG_REDUCE NSTR_AMBIG_REDUCE 93 mbstring/oniguruma/regparse.h (((node)->u.str.flag & NSTR_AMBIG_REDUCE) != 0)