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#define _U 01
#define _L 02
#define _N 04
#define _S 010
#define _P 020
#define _C 040
#define _X 0100
#define _O 0200
extern unsigned char _cbtype_[]; /* in /usr/src/libc/gen/ctype_.c */
#define isop(c) ((_cbtype_+1)[c]&_O)
#define isalpha(c) ((_cbtype_+1)[c]&(_U|_L))
#define isupper(c) ((_cbtype_+1)[c]&_U)
#define islower(c) ((_cbtype_+1)[c]&_L)
#define isdigit(c) ((_cbtype_+1)[c]&_N)
#define isxdigit(c) ((_cbtype_+1)[c]&(_N|_X))
#define isspace(c) ((_cbtype_+1)[c]&_S)
#define ispunct(c) ((_cbtype_+1)[c]&_P)
#define isalnum(c) ((_cbtype_+1)[c]&(_U|_L|_N))
#define isprint(c) ((_cbtype_+1)[c]&(_P|_U|_L|_N))
#define iscntrl(c) ((_cbtype_+1)[c]&_C)
#define isascii(c) ((unsigned)(c)<=0177)
#define toupper(c) ((c)-'a'+'A')
#define tolower(c) ((c)-'A'+'a')
#define toascii(c) ((c)&0177)
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