(0xff00 <= (u) && (u) <= 0xffff) );
(0xff00 <= (u) && (u) <= 0xffef) );
IS_CJK_CHAR(PRUnichar u){  return ((0x1100 <= (u) && (u) <= 0x11ff) ||          (0x2e80 <= (u) && (u) <= 0xd7ff) ||          (0xf900 <= (u) && (u) <= 0xfaff) ||          (0xff00 <= (u) && (u) <= 0xffff) );}