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| Rev 6432 | Rev 6433 | ||
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| 1 | /* |
1 | /* |
| 2 | ** All character classification functions except isascii(). |
2 | ** All character classification functions except isascii(). |
| 3 | ** Integer argument (c) must be in ASCII range (0-127) for |
3 | ** Integer argument (c) must be in ASCII range (0-127) for |
| 4 | ** dependable answers. |
4 | ** dependable answers. |
| 5 | */ |
5 | */ |
| 6 | 6 | ||
| 7 | #define __ALNUM 1 |
7 | #define __ALNUM 1 |
| 8 | #define __ALPHA 2 |
8 | #define __ALPHA 2 |
| 9 | #define __CNTRL 4 |
9 | #define __CNTRL 4 |
| 10 | #define __DIGIT 8 |
10 | #define __DIGIT 8 |
| 11 | #define __GRAPH 16 |
11 | #define __GRAPH 16 |
| 12 | #define __LOWER 32 |
12 | #define __LOWER 32 |
| 13 | #define __PRINT 64 |
13 | #define __PRINT 64 |
| 14 | #define __PUNCT 128 |
14 | #define __PUNCT 128 |
| 15 | #define __BLANK 256 |
15 | #define __BLANK 256 |
| 16 | #define __UPPER 512 |
16 | #define __UPPER 512 |
| 17 | #define __XDIGIT 1024 |
17 | #define __XDIGIT 1024 |
| 18 | 18 | ||
| 19 | extern unsigned short __is[128]; |
19 | extern unsigned short __is[128]; |
| 20 | 20 | ||
| 21 | #define isalnum(c)(__is[c+1] & __ALNUM ) /* 'a'-'z', 'A'-'Z', '0'-'9' */ |
21 | #define isalnum(c)(__is[c+1] & __ALNUM ) /* 'a'-'z', 'A'-'Z', '0'-'9' */ |
| 22 | #define isalpha(c)(__is[c+1] & __ALPHA ) /* 'a'-'z', 'A'-'Z' */ |
22 | #define isalpha(c)(__is[c+1] & __ALPHA ) /* 'a'-'z', 'A'-'Z' */ |
| 23 | #define iscntrl(c)(__is[c+1] & __CNTRL ) /* 0-31, 127 */ |
23 | #define iscntrl(c)(__is[c+1] & __CNTRL ) /* 0-31, 127 */ |
| 24 | #define isdigit(c)(__is[c+1] & __DIGIT ) /* '0'-'9' */ |
24 | #define isdigit(c)(__is[c+1] & __DIGIT ) /* '0'-'9' */ |
| 25 | #define isgraph(c)(__is[c+1] & __GRAPH ) /* '!'-'~' */ |
25 | #define isgraph(c)(__is[c+1] & __GRAPH ) /* '!'-'~' */ |
| 26 | #define islower(c)(__is[c+1] & __LOWER ) /* 'a'-'z' */ |
26 | #define islower(c)(__is[c+1] & __LOWER ) /* 'a'-'z' */ |
| 27 | #define isprint(c)(__is[c+1] & __PRINT ) /* ' '-'~' */ |
27 | #define isprint(c)(__is[c+1] & __PRINT ) /* ' '-'~' */ |
| 28 | #define ispunct(c)(__is[c+1] & __PUNCT ) /* !alnum && !cntrl && !space */ |
28 | #define ispunct(c)(__is[c+1] & __PUNCT ) /* !alnum && !cntrl && !space */ |
| 29 | #define isspace(c)(__is[c+1] & __BLANK ) /* HT, LF, VT, FF, CR, ' ' */ |
29 | #define isspace(c)(__is[c+1] & __BLANK ) /* HT, LF, VT, FF, CR, ' ' */ |
| 30 | #define isupper(c)(__is[c+1] & __UPPER ) /* 'A'-'Z' */ |
30 | #define isupper(c)(__is[c+1] & __UPPER ) /* 'A'-'Z' */ |
| 31 | #define isxdigit(c)(__is[c+1] & __XDIGIT) /* '0'-'9', 'a'-'f', 'A'-'F' */ |
31 | #define isxdigit(c)(__is[c+1] & __XDIGIT) /* '0'-'9', 'a'-'f', 'A'-'F' */ |
| 32 | 32 | ||
| 33 | #define isascii(c) (!((c)&(~0x7f))) |
33 | #define isascii(c) (!((c)&(~0x7f))) |
| 34 | #define toascii(c) ((c)&0x7f) |
34 | #define toascii(c) ((c)&0x7f) |
| - | 35 | ||
| - | 36 | extern unsigned char tolower(unsigned char c); |
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| - | 37 | extern unsigned char toupper(unsigned char c); |
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