ctype.h

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#ifndef __CTYPE_H__
#define __CTYPE_H__
 
#include <_xeneva.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
XE_LIB int isspace(int c);
XE_LIB int isascii(int c);
XE_LIB int isupper(int c);
XE_LIB int islower(int c);
XE_LIB int isalpha(int c);
XE_LIB int isdigit(int c);
XE_LIB int isxdigit(int c);
XE_LIB int isprint(int c);
XE_LIB int toupper(int c);
XE_LIB int tolower(int c);
 
#define toascii(c) ((unsigned)(c) & 0x7F)
 
#if 0
 
    extern char _ctype[257];
 
    /* Constants */
 
#define _LEADBYTE 0x8000                     // Multibyte leadbyte
#define _ALPHA    (0x0100 | _UPPER | _LOWER) // Alphabetic character
 
#define CT_UP  0x01 /* upper case */
#define CT_LOW 0x02 /* lower case */
#define CT_DIG 0x04 /* digit */
#define CT_CTL 0x08 /* control */
#define CT_PUN 0x10 /* punctuation */
#define CT_WHT 0x20 /* white space (space/cr/lf/tab) */
#define CT_HEX 0x40 /* hex digit */
#define CT_SP  0x80 /* hard space (0x20) */
 
    /* Basic macros */
 
#define isalnum(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_UP | CT_LOW | CT_DIG))
#define isalpha(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_UP | CT_LOW))
#define iscntrl(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_CTL))
#define isdigit(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_DIG))
#define isgraph(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_PUN | CT_UP | CT_LOW | CT_DIG))
#define islower(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_LOW))
#define isprint(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_PUN | CT_UP | CT_LOW | CT_DIG | CT_SP))
#define ispunct(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_PUN))
#define isspace(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_WHT))
#define isupper(c)  ((_ctype + 1)[(unsigned)(c)] & (CT_UP))
#define isxdigit(c) ((_ctype + 1)[(unsigned)(c)] & (CT_DIG | CT_HEX))
 
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif