reactos/lib/ntdll/string/ctype.c

   1 /* $Id: ctype.c,v 1.8 2002/07/13 12:44:06 chorns Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            lib/ntdll/rtl/ctype.c
   6  * PURPOSE:         Character type and conversion functions
   7  * PROGRAMMERS:     ???
   8  *                  Eric Kohl
   9  * HISTORY:         ???: Created
  10  *                  29/12/1999: Added missing functions and changed
  11  *                              all functions to use ctype table
  12  */
  13
  14 #include <ctype.h>
  15
  16 #undef _pctype
  17
  18 #define upalpha ('A' - 'a')
  19
  20
  21 unsigned short _ctype[] = {
  22         0,                      /* <EOF>, 0xFFFF */
  23         _CONTROL,               /* CTRL+@, 0x00 */
  24         _CONTROL,               /* CTRL+A, 0x01 */
  25         _CONTROL,               /* CTRL+B, 0x02 */
  26         _CONTROL,               /* CTRL+C, 0x03 */
  27         _CONTROL,               /* CTRL+D, 0x04 */
  28         _CONTROL,               /* CTRL+E, 0x05 */
  29         _CONTROL,               /* CTRL+F, 0x06 */
  30         _CONTROL,               /* CTRL+G, 0x07 */
  31         _CONTROL,               /* CTRL+H, 0x08 */
  32         _CONTROL | _SPACE,      /* CTRL+I, 0x09 */
  33         _CONTROL | _SPACE,      /* CTRL+J, 0x0a */
  34         _CONTROL | _SPACE,      /* CTRL+K, 0x0b */
  35         _CONTROL | _SPACE,      /* CTRL+L, 0x0c */
  36         _CONTROL | _SPACE,      /* CTRL+M, 0x0d */
  37         _CONTROL,               /* CTRL+N, 0x0e */
  38         _CONTROL,               /* CTRL+O, 0x0f */
  39         _CONTROL,               /* CTRL+P, 0x10 */
  40         _CONTROL,               /* CTRL+Q, 0x11 */
  41         _CONTROL,               /* CTRL+R, 0x12 */
  42         _CONTROL,               /* CTRL+S, 0x13 */
  43         _CONTROL,               /* CTRL+T, 0x14 */
  44         _CONTROL,               /* CTRL+U, 0x15 */
  45         _CONTROL,               /* CTRL+V, 0x16 */
  46         _CONTROL,               /* CTRL+W, 0x17 */
  47         _CONTROL,               /* CTRL+X, 0x18 */
  48         _CONTROL,               /* CTRL+Y, 0x19 */
  49         _CONTROL,               /* CTRL+Z, 0x1a */
  50         _CONTROL,               /* CTRL+[, 0x1b */
  51         _CONTROL,               /* CTRL+\, 0x1c */
  52         _CONTROL,               /* CTRL+], 0x1d */
  53         _CONTROL,               /* CTRL+^, 0x1e */
  54         _CONTROL,               /* CTRL+_, 0x1f */
  55         _SPACE | _BLANK,        /* ` ', 0x20 */
  56         _PUNCT,                 /* `!', 0x21 */
  57         _PUNCT,                 /* 0x22 */
  58         _PUNCT,                 /* `#', 0x23 */
  59         _PUNCT,                 /* `$', 0x24 */
  60         _PUNCT,                 /* `%', 0x25 */
  61         _PUNCT,                 /* `&', 0x26 */
  62         _PUNCT,                 /* 0x27 */
  63         _PUNCT,                 /* `(', 0x28 */
  64         _PUNCT,                 /* `)', 0x29 */
  65         _PUNCT,                 /* `*', 0x2a */
  66         _PUNCT,                 /* `+', 0x2b */
  67         _PUNCT,                 /* `,', 0x2c */
  68         _PUNCT,                 /* `-', 0x2d */
  69         _PUNCT,                 /* `.', 0x2e */
  70         _PUNCT,                 /* `/', 0x2f */
  71         _DIGIT | _HEX,          /* `0', 0x30 */
  72         _DIGIT | _HEX,          /* `1', 0x31 */
  73         _DIGIT | _HEX,          /* `2', 0x32 */
  74         _DIGIT | _HEX,          /* `3', 0x33 */
  75         _DIGIT | _HEX,          /* `4', 0x34 */
  76         _DIGIT | _HEX,          /* `5', 0x35 */
  77         _DIGIT | _HEX,          /* `6', 0x36 */
  78         _DIGIT | _HEX,          /* `7', 0x37 */
  79         _DIGIT | _HEX,          /* `8', 0x38 */
  80         _DIGIT | _HEX,          /* `9', 0x39 */
  81         _PUNCT,                 /* `:', 0x3a */
  82         _PUNCT,                 /* `;', 0x3b */
  83         _PUNCT,                 /* `<', 0x3c */
  84         _PUNCT,                 /* `=', 0x3d */
  85         _PUNCT,                 /* `>', 0x3e */
  86         _PUNCT,                 /* `?', 0x3f */
  87         _PUNCT,                 /* `@', 0x40 */
  88         _UPPER | _HEX,          /* `A', 0x41 */
  89         _UPPER | _HEX,          /* `B', 0x42 */
  90         _UPPER | _HEX,          /* `C', 0x43 */
  91         _UPPER | _HEX,          /* `D', 0x44 */
  92         _UPPER | _HEX,          /* `E', 0x45 */
  93         _UPPER | _HEX,          /* `F', 0x46 */
  94         _UPPER,                 /* `G', 0x47 */
  95         _UPPER,                 /* `H', 0x48 */
  96         _UPPER,                 /* `I', 0x49 */
  97         _UPPER,                 /* `J', 0x4a */
  98         _UPPER,                 /* `K', 0x4b */
  99         _UPPER,                 /* `L', 0x4c */
 100         _UPPER,                 /* `M', 0x4d */
 101         _UPPER,                 /* `N', 0x4e */
 102         _UPPER,                 /* `O', 0x4f */
 103         _UPPER,                 /* `P', 0x50 */
 104         _UPPER,                 /* `Q', 0x51 */
 105         _UPPER,                 /* `R', 0x52 */
 106         _UPPER,                 /* `S', 0x53 */
 107         _UPPER,                 /* `T', 0x54 */
 108         _UPPER,                 /* `U', 0x55 */
 109         _UPPER,                 /* `V', 0x56 */
 110         _UPPER,                 /* `W', 0x57 */
 111         _UPPER,                 /* `X', 0x58 */
 112         _UPPER,                 /* `Y', 0x59 */
 113         _UPPER,                 /* `Z', 0x5a */
 114         _PUNCT,                 /* `[', 0x5b */
 115         _PUNCT,                 /* 0x5c */
 116         _PUNCT,                 /* `]', 0x5d */
 117         _PUNCT,                 /* `^', 0x5e */
 118         _PUNCT,                 /* `_', 0x5f */
 119         _PUNCT,                 /* 0x60 */
 120         _LOWER | _HEX,          /* `a', 0x61 */
 121         _LOWER | _HEX,          /* `b', 0x62 */
 122         _LOWER | _HEX,          /* `c', 0x63 */
 123         _LOWER | _HEX,          /* `d', 0x64 */
 124         _LOWER | _HEX,          /* `e', 0x65 */
 125         _LOWER | _HEX,          /* `f', 0x66 */
 126         _LOWER,                 /* `g', 0x67 */
 127         _LOWER,                 /* `h', 0x68 */
 128         _LOWER,                 /* `i', 0x69 */
 129         _LOWER,                 /* `j', 0x6a */
 130         _LOWER,                 /* `k', 0x6b */
 131         _LOWER,                 /* `l', 0x6c */
 132         _LOWER,                 /* `m', 0x6d */
 133         _LOWER,                 /* `n', 0x6e */
 134         _LOWER,                 /* `o', 0x6f */
 135         _LOWER,                 /* `p', 0x70 */
 136         _LOWER,                 /* `q', 0x71 */
 137         _LOWER,                 /* `r', 0x72 */
 138         _LOWER,                 /* `s', 0x73 */
 139         _LOWER,                 /* `t', 0x74 */
 140         _LOWER,                 /* `u', 0x75 */
 141         _LOWER,                 /* `v', 0x76 */
 142         _LOWER,                 /* `w', 0x77 */
 143         _LOWER,                 /* `x', 0x78 */
 144         _LOWER,                 /* `y', 0x79 */
 145         _LOWER,                 /* `z', 0x7a */
 146         _PUNCT,                 /* `{', 0x7b */
 147         _PUNCT,                 /* `|', 0x7c */
 148         _PUNCT,                 /* `}', 0x7d */
 149         _PUNCT,                 /* `~', 0x7e */
 150         _CONTROL,               /* 0x7f */
 151         0,                      /* 0x80 */
 152         0,                      /* 0x81 */
 153         0,                      /* 0x82 */
 154         0,                      /* 0x83 */
 155         0,                      /* 0x84 */
 156         0,                      /* 0x85 */
 157         0,                      /* 0x86 */
 158         0,                      /* 0x87 */
 159         0,                      /* 0x88 */
 160         0,                      /* 0x89 */
 161         0,                      /* 0x8a */
 162         0,                      /* 0x8b */
 163         0,                      /* 0x8c */
 164         0,                      /* 0x8d */
 165         0,                      /* 0x8e */
 166         0,                      /* 0x8f */
 167         0,                      /* 0x90 */
 168         0,                      /* 0x91 */
 169         0,                      /* 0x92 */
 170         0,                      /* 0x93 */
 171         0,                      /* 0x94 */
 172         0,                      /* 0x95 */
 173         0,                      /* 0x96 */
 174         0,                      /* 0x97 */
 175         0,                      /* 0x98 */
 176         0,                      /* 0x99 */
 177         0,                      /* 0x9a */
 178         0,                      /* 0x9b */
 179         0,                      /* 0x9c */
 180         0,                      /* 0x9d */
 181         0,                      /* 0x9e */
 182         0,                      /* 0x9f */
 183         0,                      /* 0xa0 */
 184         0,                      /* 0xa1 */
 185         0,                      /* 0xa2 */
 186         0,                      /* 0xa3 */
 187         0,                      /* 0xa4 */
 188         0,                      /* 0xa5 */
 189         0,                      /* 0xa6 */
 190         0,                      /* 0xa7 */
 191         0,                      /* 0xa8 */
 192         0,                      /* 0xa9 */
 193         0,                      /* 0xaa */
 194         0,                      /* 0xab */
 195         0,                      /* 0xac */
 196         0,                      /* 0xad */
 197         0,                      /* 0xae */
 198         0,                      /* 0xaf */
 199         0,                      /* 0xb0 */
 200         0,                      /* 0xb1 */
 201         0,                      /* 0xb2 */
 202         0,                      /* 0xb3 */
 203         0,                      /* 0xb4 */
 204         0,                      /* 0xb5 */
 205         0,                      /* 0xb6 */
 206         0,                      /* 0xb7 */
 207         0,                      /* 0xb8 */
 208         0,                      /* 0xb9 */
 209         0,                      /* 0xba */
 210         0,                      /* 0xbb */
 211         0,                      /* 0xbc */
 212         0,                      /* 0xbd */
 213         0,                      /* 0xbe */
 214         0,                      /* 0xbf */
 215         0,                      /* 0xc0 */
 216         0,                      /* 0xc1 */
 217         0,                      /* 0xc2 */
 218         0,                      /* 0xc3 */
 219         0,                      /* 0xc4 */
 220         0,                      /* 0xc5 */
 221         0,                      /* 0xc6 */
 222         0,                      /* 0xc7 */
 223         0,                      /* 0xc8 */
 224         0,                      /* 0xc9 */
 225         0,                      /* 0xca */
 226         0,                      /* 0xcb */
 227         0,                      /* 0xcc */
 228         0,                      /* 0xcd */
 229         0,                      /* 0xce */
 230         0,                      /* 0xcf */
 231         0,                      /* 0xd0 */
 232         0,                      /* 0xd1 */
 233         0,                      /* 0xd2 */
 234         0,                      /* 0xd3 */
 235         0,                      /* 0xd4 */
 236         0,                      /* 0xd5 */
 237         0,                      /* 0xd6 */
 238         0,                      /* 0xd7 */
 239         0,                      /* 0xd8 */
 240         0,                      /* 0xd9 */
 241         0,                      /* 0xda */
 242         0,                      /* 0xdb */
 243         0,                      /* 0xdc */
 244         0,                      /* 0xdd */
 245         0,                      /* 0xde */
 246         0,                      /* 0xdf */
 247         0,                      /* 0xe0 */
 248         0,                      /* 0xe1 */
 249         0,                      /* 0xe2 */
 250         0,                      /* 0xe3 */
 251         0,                      /* 0xe4 */
 252         0,                      /* 0xe5 */
 253         0,                      /* 0xe6 */
 254         0,                      /* 0xe7 */
 255         0,                      /* 0xe8 */
 256         0,                      /* 0xe9 */
 257         0,                      /* 0xea */
 258         0,                      /* 0xeb */
 259         0,                      /* 0xec */
 260         0,                      /* 0xed */
 261         0,                      /* 0xee */
 262         0,                      /* 0xef */
 263         0,                      /* 0xf0 */
 264         0,                      /* 0xf1 */
 265         0,                      /* 0xf2 */
 266         0,                      /* 0xf3 */
 267         0,                      /* 0xf4 */
 268         0,                      /* 0xf5 */
 269         0,                      /* 0xf6 */
 270         0,                      /* 0xf7 */
 271         0,                      /* 0xf8 */
 272         0,                      /* 0xf9 */
 273         0,                      /* 0xfa */
 274         0,                      /* 0xfb */
 275         0,                      /* 0xfc */
 276         0,                      /* 0xfd */
 277         0,                      /* 0xfe */
 278         0                       /* 0xff */
 279 };
 280
 281 unsigned short *_pctype = _ctype + 1;
 282 unsigned short *_pwctype = _ctype + 1;
 283
 284 int _isctype (int c, int ctypeFlags)
 285 {
 286   return (_pctype[(unsigned char)(c & 0xFF)] & ctypeFlags);
 287 }
 288
 289 int iswctype(wint_t wc, wctype_t wctypeFlags)
 290 {
 291    return (_pwctype[(unsigned char)(wc & 0xFF)] & wctypeFlags);
 292 }
 293
 294 int isalpha(int c)
 295 {
 296    return(_isctype(c, _ALPHA));
 297 }
 298
 299 int isalnum(int c)
 300 {
 301    return(_isctype(c, _ALPHA | _DIGIT));
 302 }
 303
 304 int __isascii(int c)
 305 {
 306    return ((unsigned char)c <= 0x7f);
 307 }
 308
 309 int iscntrl(int c)
 310 {
 311    return(_isctype(c, _CONTROL));
 312 }
 313
 314 int __iscsym(int c)
 315 {
 316    return(isalnum(c)||(c == '_'));
 317 }
 318
 319 int __iscsymf(int c)
 320 {
 321    return(isalpha(c)||(c == '_'));
 322 }
 323
 324 int isdigit(int c)
 325 {
 326    return(_isctype(c, _DIGIT));
 327 }
 328
 329 int isgraph(int c)
 330 {
 331    return (_isctype (c, _PUNCT | _ALPHA | _DIGIT));
 332 }
 333
 334 int islower(int c)
 335 {
 336    return (_isctype (c, _LOWER));
 337 }
 338
 339 int isprint(int c)
 340 {
 341    return (_isctype (c, _BLANK | _PUNCT | _ALPHA | _DIGIT));
 342 }
 343
 344 int ispunct(int c)
 345 {
 346    return (_isctype (c, _PUNCT));
 347 }
 348
 349 int isspace(int c)
 350 {
 351    return (_isctype (c, _SPACE));
 352 }
 353
 354 int isupper(int c)
 355 {
 356    return (_isctype (c, _UPPER));
 357 }
 358
 359 int isxdigit(int c)
 360 {
 361    return (_isctype (c, _HEX));
 362 }
 363
 364
 365 int iswalpha(wint_t c)
 366 {
 367    return (iswctype (c, _ALPHA));
 368 }
 369
 370 int iswdigit(wint_t c)
 371 {
 372    return (iswctype (c, _DIGIT));
 373 }
 374
 375 int iswlower(wint_t c)
 376 {
 377    return (iswctype (c, _LOWER));
 378 }
 379
 380 int iswxdigit(wint_t c)
 381 {
 382    return (iswctype (c, _HEX));
 383 }
 384
 385
 386 int __toascii(int c)
 387 {
 388    return((unsigned)(c) & 0x7f);
 389 }
 390
 391 int _tolower(int c)
 392 {
 393    if (_isctype (c, _UPPER))
 394        return (c - upalpha);
 395    return(c);
 396 }
 397
 398 int _toupper(int c)
 399 {
 400    if (_isctype (c, _LOWER))
 401       return (c + upalpha);
 402    return(c);
 403 }
 404
 405 int tolower(int c)
 406 {
 407    if (_isctype (c, _UPPER))
 408        return (c - upalpha);
 409    return(c);
 410 }
 411
 412 int toupper(int c)
 413 {
 414    if (_isctype (c, _LOWER))
 415       return (c + upalpha);
 416    return(c);
 417 }
 418
 419 wchar_t towlower(wchar_t c)
 420 {
 421    if (iswctype (c, _UPPER))
 422        return (c - upalpha);
 423    return(c);
 424 }
 425
 426 wchar_t towupper(wchar_t c)
 427 {
 428    if (iswctype (c, _LOWER))
 429       return (c + upalpha);
 430    return(c);
 431 }
 432
 433 /* EOF */