| 0,0 → 1,41 |
|---|
| #ifndef _CTYPE_H |
| #define _CTYPE_H |
| /* |
| ** All character classification functions except isascii(). |
| ** Integer argument (c) must be in ASCII range (0-127) for |
| ** dependable answers. |
| */ |
| |
| #define __ALNUM 1 |
| #define __ALPHA 2 |
| #define __CNTRL 4 |
| #define __DIGIT 8 |
| #define __GRAPH 16 |
| #define __LOWER 32 |
| #define __PRINT 64 |
| #define __PUNCT 128 |
| #define __BLANK 256 |
| #define __UPPER 512 |
| #define __XDIGIT 1024 |
| |
| extern unsigned short __is[129]; |
| |
| #define isalnum(c)(__is[c+1] & __ALNUM ) /* 'a'-'z', 'A'-'Z', '0'-'9' */ |
| #define isalpha(c)(__is[c+1] & __ALPHA ) /* 'a'-'z', 'A'-'Z' */ |
| #define iscntrl(c)(__is[c+1] & __CNTRL ) /* 0-31, 127 */ |
| #define isdigit(c)(__is[c+1] & __DIGIT ) /* '0'-'9' */ |
| #define isgraph(c)(__is[c+1] & __GRAPH ) /* '!'-'~' */ |
| #define islower(c)(__is[c+1] & __LOWER ) /* 'a'-'z' */ |
| #define isprint(c)(__is[c+1] & __PRINT ) /* ' '-'~' */ |
| #define ispunct(c)(__is[c+1] & __PUNCT ) /* !alnum && !cntrl && !space */ |
| #define isspace(c)(__is[c+1] & __BLANK ) /* HT, LF, VT, FF, CR, ' ' */ |
| #define isupper(c)(__is[c+1] & __UPPER ) /* 'A'-'Z' */ |
| #define isxdigit(c)(__is[c+1] & __XDIGIT) /* '0'-'9', 'a'-'f', 'A'-'F' */ |
| |
| #define isascii(c) (!((c)&(~0x7f))) |
| #define toascii(c) ((c)&0x7f) |
| |
| extern unsigned char tolower(unsigned char c); |
| extern unsigned char toupper(unsigned char c); |
| |
| #endif |