cos2000v2/include/ctype.h

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#ifndef __TL_CTYPE_H
#define __TL_CTYPE_H
#ifdef __cplusplus
extern "C"
{
#endif
extern char g_ctype[];
#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) */
/* without the cast to unsigned, DJGPP complains (using -Wall) */
#define isalnum(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_UP | CT_LOW | CT_DIG))
#define isalpha(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_UP | CT_LOW))
#define iscntrl(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_CTL))
#define isdigit(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_DIG))
#define isgraph(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_PUN | CT_UP | CT_LOW | CT_DIG))
#define islower(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_LOW))
#define isprint(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_PUN | CT_UP | CT_LOW | CT_DIG | CT_SP))
#define ispunct(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_PUN))
#define isspace(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_WHT))
#define isupper(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_UP))
#define isxdigit(c) ((g_ctype + 1)[(unsigned)(c)] & (CT_DIG | CT_HEX))
#define isascii(c) ((unsigned)(c) <= 0x7F)
#define toascii(c) ((unsigned)(c) & 0x7F)
#define tolower(c) (isupper(c) ? c + 'a' - 'A' : c)
#define toupper(c) (islower(c) ? c + 'A' - 'a' : c)
#ifdef __cplusplus
}
#endif
#endif