1 /* $Id: ctype.c,v 1.9 2002/09/07 15:13:05 chorns Exp $
3 * COPYRIGHT: See COPYING in the top level directory
4 * PROJECT: ReactOS kernel
5 * FILE: ntoskrnl/rtl/ctype.c
6 * PURPOSE: Character type and conversion functions
9 * HISTORY: ???: Created
10 * 10/01/2000: Added missing functions and changed
11 * all functions to use ctype table
17 #include <internal/debug.h>
21 #define upalpha ('A' - 'a')
24 unsigned short _ctype
[] = {
25 0, /* <EOF>, 0xFFFF */
26 _CONTROL
, /* CTRL+@, 0x00 */
27 _CONTROL
, /* CTRL+A, 0x01 */
28 _CONTROL
, /* CTRL+B, 0x02 */
29 _CONTROL
, /* CTRL+C, 0x03 */
30 _CONTROL
, /* CTRL+D, 0x04 */
31 _CONTROL
, /* CTRL+E, 0x05 */
32 _CONTROL
, /* CTRL+F, 0x06 */
33 _CONTROL
, /* CTRL+G, 0x07 */
34 _CONTROL
, /* CTRL+H, 0x08 */
35 _CONTROL
| _SPACE
, /* CTRL+I, 0x09 */
36 _CONTROL
| _SPACE
, /* CTRL+J, 0x0a */
37 _CONTROL
| _SPACE
, /* CTRL+K, 0x0b */
38 _CONTROL
| _SPACE
, /* CTRL+L, 0x0c */
39 _CONTROL
| _SPACE
, /* CTRL+M, 0x0d */
40 _CONTROL
, /* CTRL+N, 0x0e */
41 _CONTROL
, /* CTRL+O, 0x0f */
42 _CONTROL
, /* CTRL+P, 0x10 */
43 _CONTROL
, /* CTRL+Q, 0x11 */
44 _CONTROL
, /* CTRL+R, 0x12 */
45 _CONTROL
, /* CTRL+S, 0x13 */
46 _CONTROL
, /* CTRL+T, 0x14 */
47 _CONTROL
, /* CTRL+U, 0x15 */
48 _CONTROL
, /* CTRL+V, 0x16 */
49 _CONTROL
, /* CTRL+W, 0x17 */
50 _CONTROL
, /* CTRL+X, 0x18 */
51 _CONTROL
, /* CTRL+Y, 0x19 */
52 _CONTROL
, /* CTRL+Z, 0x1a */
53 _CONTROL
, /* CTRL+[, 0x1b */
54 _CONTROL
, /* CTRL+\, 0x1c */
55 _CONTROL
, /* CTRL+], 0x1d */
56 _CONTROL
, /* CTRL+^, 0x1e */
57 _CONTROL
, /* CTRL+_, 0x1f */
58 _SPACE
| _BLANK
, /* ` ', 0x20 */
59 _PUNCT
, /* `!', 0x21 */
61 _PUNCT
, /* `#', 0x23 */
62 _PUNCT
, /* `$', 0x24 */
63 _PUNCT
, /* `%', 0x25 */
64 _PUNCT
, /* `&', 0x26 */
66 _PUNCT
, /* `(', 0x28 */
67 _PUNCT
, /* `)', 0x29 */
68 _PUNCT
, /* `*', 0x2a */
69 _PUNCT
, /* `+', 0x2b */
70 _PUNCT
, /* `,', 0x2c */
71 _PUNCT
, /* `-', 0x2d */
72 _PUNCT
, /* `.', 0x2e */
73 _PUNCT
, /* `/', 0x2f */
74 _DIGIT
| _HEX
, /* `0', 0x30 */
75 _DIGIT
| _HEX
, /* `1', 0x31 */
76 _DIGIT
| _HEX
, /* `2', 0x32 */
77 _DIGIT
| _HEX
, /* `3', 0x33 */
78 _DIGIT
| _HEX
, /* `4', 0x34 */
79 _DIGIT
| _HEX
, /* `5', 0x35 */
80 _DIGIT
| _HEX
, /* `6', 0x36 */
81 _DIGIT
| _HEX
, /* `7', 0x37 */
82 _DIGIT
| _HEX
, /* `8', 0x38 */
83 _DIGIT
| _HEX
, /* `9', 0x39 */
84 _PUNCT
, /* `:', 0x3a */
85 _PUNCT
, /* `;', 0x3b */
86 _PUNCT
, /* `<', 0x3c */
87 _PUNCT
, /* `=', 0x3d */
88 _PUNCT
, /* `>', 0x3e */
89 _PUNCT
, /* `?', 0x3f */
90 _PUNCT
, /* `@', 0x40 */
91 _UPPER
| _HEX
, /* `A', 0x41 */
92 _UPPER
| _HEX
, /* `B', 0x42 */
93 _UPPER
| _HEX
, /* `C', 0x43 */
94 _UPPER
| _HEX
, /* `D', 0x44 */
95 _UPPER
| _HEX
, /* `E', 0x45 */
96 _UPPER
| _HEX
, /* `F', 0x46 */
97 _UPPER
, /* `G', 0x47 */
98 _UPPER
, /* `H', 0x48 */
99 _UPPER
, /* `I', 0x49 */
100 _UPPER
, /* `J', 0x4a */
101 _UPPER
, /* `K', 0x4b */
102 _UPPER
, /* `L', 0x4c */
103 _UPPER
, /* `M', 0x4d */
104 _UPPER
, /* `N', 0x4e */
105 _UPPER
, /* `O', 0x4f */
106 _UPPER
, /* `P', 0x50 */
107 _UPPER
, /* `Q', 0x51 */
108 _UPPER
, /* `R', 0x52 */
109 _UPPER
, /* `S', 0x53 */
110 _UPPER
, /* `T', 0x54 */
111 _UPPER
, /* `U', 0x55 */
112 _UPPER
, /* `V', 0x56 */
113 _UPPER
, /* `W', 0x57 */
114 _UPPER
, /* `X', 0x58 */
115 _UPPER
, /* `Y', 0x59 */
116 _UPPER
, /* `Z', 0x5a */
117 _PUNCT
, /* `[', 0x5b */
119 _PUNCT
, /* `]', 0x5d */
120 _PUNCT
, /* `^', 0x5e */
121 _PUNCT
, /* `_', 0x5f */
123 _LOWER
| _HEX
, /* `a', 0x61 */
124 _LOWER
| _HEX
, /* `b', 0x62 */
125 _LOWER
| _HEX
, /* `c', 0x63 */
126 _LOWER
| _HEX
, /* `d', 0x64 */
127 _LOWER
| _HEX
, /* `e', 0x65 */
128 _LOWER
| _HEX
, /* `f', 0x66 */
129 _LOWER
, /* `g', 0x67 */
130 _LOWER
, /* `h', 0x68 */
131 _LOWER
, /* `i', 0x69 */
132 _LOWER
, /* `j', 0x6a */
133 _LOWER
, /* `k', 0x6b */
134 _LOWER
, /* `l', 0x6c */
135 _LOWER
, /* `m', 0x6d */
136 _LOWER
, /* `n', 0x6e */
137 _LOWER
, /* `o', 0x6f */
138 _LOWER
, /* `p', 0x70 */
139 _LOWER
, /* `q', 0x71 */
140 _LOWER
, /* `r', 0x72 */
141 _LOWER
, /* `s', 0x73 */
142 _LOWER
, /* `t', 0x74 */
143 _LOWER
, /* `u', 0x75 */
144 _LOWER
, /* `v', 0x76 */
145 _LOWER
, /* `w', 0x77 */
146 _LOWER
, /* `x', 0x78 */
147 _LOWER
, /* `y', 0x79 */
148 _LOWER
, /* `z', 0x7a */
149 _PUNCT
, /* `{', 0x7b */
150 _PUNCT
, /* `|', 0x7c */
151 _PUNCT
, /* `}', 0x7d */
152 _PUNCT
, /* `~', 0x7e */
284 unsigned short *_pctype
= _ctype
+ 1;
285 unsigned short *_pwctype
= _ctype
+ 1;
287 int _isctype (int c
, int ctypeFlags
)
289 return (_pctype
[(unsigned char)(c
& 0xFF)] & ctypeFlags
);
292 int iswctype(wint_t wc
, wctype_t wctypeFlags
)
294 return (_pwctype
[(unsigned char)(wc
& 0xFF)] & wctypeFlags
);
300 return(_isctype(c
, _ALPHA
));
306 return(_isctype(c, _ALPHA | _DIGIT));
311 return ((unsigned char)c <= 0x7f);
316 return(_isctype(c, _CONTROL));
321 return(isalnum(c)||(c == '_'));
326 return(isalpha(c)||(c == '_'));
332 return(_isctype(c
, _DIGIT
));
338 return (_isctype (c, _PUNCT | _ALPHA | _DIGIT));
344 return (_isctype (c
, _LOWER
));
349 return (_isctype (c
, _BLANK
| _PUNCT
| _ALPHA
| _DIGIT
));
355 return (_isctype (c, _PUNCT));
361 return (_isctype (c
, _SPACE
));
366 return (_isctype (c
, _UPPER
));
371 return (_isctype (c
, _HEX
));
375 int iswalpha(wint_t c)
377 return (iswctype (c, _ALPHA));
381 int iswdigit(wint_t c
)
383 return (iswctype (c
, _DIGIT
));
386 int iswlower(wint_t c
)
388 return (iswctype (c
, _LOWER
));
391 int iswxdigit(wint_t c
)
393 return (iswctype (c
, _HEX
));
400 return((unsigned)(c) & 0x7f);
405 if (_isctype (c, _UPPER))
406 return (c - upalpha);
412 if (_isctype (c, _LOWER))
413 return (c + upalpha);
420 if (_isctype (c
, _UPPER
))
421 return (c
- upalpha
);
427 if (_isctype (c
, _LOWER
))
428 return (c
+ upalpha
);
432 wchar_t towlower(wchar_t c
)
434 if (iswctype (c
, _UPPER
))
435 return (c
- upalpha
);
439 wchar_t towupper(wchar_t c
)
441 if (iswctype (c
, _LOWER
))
442 return (c
+ upalpha
);