E_
0, C_, M_, E_, E_, M_, M_|X_, C_|Z_,
C_, E_|U_, 0, 0, M_|Z_, 0, C_, 0
#define is_cmd(c) (classify[(c)&0x7f]&(M_|E_|C_|U_))
#define is_extend(c) (classify[(c)&0x7f]&E_)