wctype/wctype.h

   1 /* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 /*
  20  *      ISO C Standard, Amendment 1, 7.15:
  21  *      Wide-character classification and mapping utilities  <wctype.h>
  22  */
  23
  24 #ifndef _WCTYPE_H
  25
  26 #ifndef __need_iswxxx
  27 # define _WCTYPE_H      1
  28
  29 # include <features.h>
  30 # include <bits/types.h>
  31
  32 /* We try to get wint_t from <stddef.h>, but not all GCC versions define it
  33    there.  So define it ourselves if it remains undefined.  */
  34 # define __need_wint_t
  35 # include <stddef.h>
  36 # ifndef _WINT_T
  37 /* Integral type unchanged by default argument promotions that can
  38    hold any value corresponding to members of the extended character
  39    set, as well as at least one value that does not correspond to any
  40    member of the extended character set.  */
  41 #  define _WINT_T
  42 typedef unsigned int wint_t;
  43 # endif
  44
  45 /* Constant expression of type `wint_t' whose value does not correspond
  46    to any member of the extended character set.  */
  47 # ifndef WEOF
  48 #  define WEOF (0xffffffffu)
  49 # endif
  50 #endif
  51 #undef __need_iswxxx
  52
  53
  54 /* The following part is also used in the <wcsmbs.h> header when compiled
  55    in the Unix98 compatibility mode.  */
  56 #ifndef __iswxxx_defined
  57 # define __iswxxx_defined       1
  58
  59 /* Scalar type that can hold values which represent locale-specific
  60    character classifications.  */
  61 typedef unsigned long int wctype_t;
  62
  63 # ifndef _ISwbit
  64 /* The characteristics are stored always in network byte order (big
  65    endian).  We define the bit value interpretations here dependent on the
  66    machine's byte order.  */
  67
  68 #  include <endian.h>
  69 #  if __BYTE_ORDER == __BIG_ENDIAN
  70 #   define _ISwbit(bit) (1 << bit)
  71 #  else /* __BYTE_ORDER == __LITTLE_ENDIAN */
  72 #   define _ISwbit(bit) (bit < 8 ? 1UL << bit << 24 : 1UL << (bit + 8))
  73 #  endif
  74
  75 enum
  76 {
  77   _ISwupper = _ISwbit (0),      /* UPPERCASE.  */
  78   _ISwlower = _ISwbit (1),      /* lowercase.  */
  79   _ISwalpha = _ISwbit (2),      /* Alphabetic.  */
  80   _ISwdigit = _ISwbit (3),      /* Numeric.  */
  81   _ISwxdigit = _ISwbit (4),     /* Hexadecimal numeric.  */
  82   _ISwspace = _ISwbit (5),      /* Whitespace.  */
  83   _ISwprint = _ISwbit (6),      /* Printing.  */
  84   _ISwgraph = _ISwbit (7),      /* Graphical.  */
  85   _ISwblank = _ISwbit (8),      /* Blank (usually SPC and TAB).  */
  86   _ISwcntrl = _ISwbit (9),      /* Control character.  */
  87   _ISwpunct = _ISwbit (10),     /* Punctuation.  */
  88   _ISwalnum = _ISwbit (11)      /* Alphanumeric.  */
  89 };
  90 # endif /* Not _ISwbit  */
  91
  92
  93 __BEGIN_DECLS
  94
  95 /*
  96  * Wide-character classification functions: 7.15.2.1.
  97  */
  98
  99 /* Test for any wide character for which `iswalpha' or `iswdigit' is
 100    true.  */
 101 extern int iswalnum __P ((wint_t __wc));
 102
 103 /* Test for any wide character for which `iswupper' or 'iswlower' is
 104    true, or any wide character that is one of a locale-specific set of
 105    wide-characters for which none of `iswcntrl', `iswdigit',
 106    `iswpunct', or `iswspace' is true.  */
 107 extern int iswalpha __P ((wint_t __wc));
 108
 109 /* Test for any control wide character.  */
 110 extern int iswcntrl __P ((wint_t __wc));
 111
 112 /* Test for any wide character that corresponds to a decimal-digit
 113    character.  */
 114 extern int iswdigit __P ((wint_t __wc));
 115
 116 /* Test for any wide character for which `iswprint' is true and
 117    `iswspace' is false.  */
 118 extern int iswgraph __P ((wint_t __wc));
 119
 120 /* Test for any wide character that corresponds to a lowercase letter
 121    or is one of a locale-specific set of wide characters for which
 122    none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
 123 extern int iswlower __P ((wint_t __wc));
 124
 125 /* Test for any printing wide character.  */
 126 extern int iswprint __P ((wint_t __wc));
 127
 128 /* Test for any printing wide character that is one of a
 129    locale-specific et of wide characters for which neither `iswspace'
 130    nor `iswalnum' is true.  */
 131 extern int iswpunct __P ((wint_t __wc));
 132
 133 /* Test for any wide character that corresponds to a locale-specific
 134    set of wide characters for which none of `iswalnum', `iswgraph', or
 135    `iswpunct' is true.  */
 136 extern int iswspace __P ((wint_t __wc));
 137
 138 /* Test for any wide character that corresponds to an uppercase letter
 139    or is one of a locale-specific set of wide character for which none
 140    of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
 141 extern int iswupper __P ((wint_t __wc));
 142
 143 /* Test for any wide character that corresponds to a hexadecimal-digit
 144    character equivalent to that performed be the functions described
 145    in the previous subclause.  */
 146 extern int iswxdigit __P ((wint_t __wc));
 147
 148 /*
 149  * Extensible wide-character classification functions: 7.15.2.2.
 150  */
 151
 152 /* Construct value that describes a class of wide characters identified
 153    by the string argument PROPERTY.  */
 154 extern wctype_t __wctype __P ((__const char *__property));
 155 extern wctype_t wctype __P ((__const char *__property));
 156
 157 /* Determine whether the wide-character WC has the property described by
 158    DESC.  */
 159 extern int __iswctype __P ((wint_t __wc, wctype_t __desc));
 160 extern int iswctype __P ((wint_t __wc, wctype_t __desc));
 161
 162
 163 /*
 164  * Wide-character case-mapping functions: 7.15.3.1.
 165  */
 166
 167 /* Scalar type that can hold values which represent locale-specific
 168    character mappings.  */
 169 typedef __const __int32_t *wctrans_t;
 170
 171 /* Converts an uppercase letter to the corresponding lowercase letter.  */
 172 extern wint_t towlower __P ((wint_t __wc));
 173
 174 /* Converts an lowercase letter to the corresponding uppercase letter.  */
 175 extern wint_t towupper __P ((wint_t __wc));
 176
 177 /* Map the wide character WC using the mapping described by DESC.  */
 178 extern wint_t __towctrans __P ((wint_t __wc, wctrans_t __desc));
 179
 180
 181 # ifndef __NO_WCTYPE
 182 #  define iswalnum(wc)  __iswctype ((wc), _ISwalnum)
 183 #  define iswalpha(wc)  __iswctype ((wc), _ISwalpha)
 184 #  define iswcntrl(wc)  __iswctype ((wc), _ISwcntrl)
 185 #  define iswdigit(wc)  __iswctype ((wc), _ISwdigit)
 186 #  define iswlower(wc)  __iswctype ((wc), _ISwlower)
 187 #  define iswgraph(wc)  __iswctype ((wc), _ISwgraph)
 188 #  define iswprint(wc)  __iswctype ((wc), _ISwprint)
 189 #  define iswpunct(wc)  __iswctype ((wc), _ISwpunct)
 190 #  define iswspace(wc)  __iswctype ((wc), _ISwspace)
 191 #  define iswupper(wc)  __iswctype ((wc), _ISwupper)
 192 #  define iswxdigit(wc) __iswctype ((wc), _ISwxdigit)
 193
 194 #  ifdef __USE_GNU
 195 #   define iswblank(wc) __iswctype ((wc), _ISwblank)
 196 #  endif
 197
 198
 199 /* Pointer to conversion tables.  */
 200 extern __const __int32_t *__ctype_tolower; /* Case conversions.  */
 201 extern __const __int32_t *__ctype_toupper; /* Case conversions.  */
 202
 203 #  define towlower(wc)  __towctrans ((wc), __ctype_tolower)
 204 #  define towupper(wc)  __towctrans ((wc), __ctype_toupper)
 205
 206 # endif /* Not __NO_WCTYPE.  */
 207
 208 __END_DECLS
 209
 210 #endif  /* need iswxxx.  */
 211
 212
 213 /* The remaining definitions and declarations must not appear in the
 214    <wcsmbs.h> header.  */
 215 #ifdef _WCTYPE_H
 216
 217 /*
 218  * Extensible wide-character mapping functions: 7.15.3.2.
 219  */
 220
 221 __BEGIN_DECLS
 222
 223 /* Construct value that describes a mapping between wide characters
 224    identified by the string argument PROPERTY.  */
 225 extern wctrans_t wctrans __P ((__const char *__property));
 226
 227 /* Map the wide character WC using the mapping described by DESC.  */
 228 extern wint_t towctrans __P ((wint_t __wc, wctrans_t __desc));
 229
 230 # ifdef __USE_GNU
 231 /* Declare the interface to extended locale model.  */
 232 #  include <xlocale.h>
 233
 234 /* Test for any wide character for which `iswalpha' or `iswdigit' is
 235    true.  */
 236 extern int __iswalnum_l __P ((wint_t __wc, __locale_t __locale));
 237
 238 /* Test for any wide character for which `iswupper' or 'iswlower' is
 239    true, or any wide character that is one of a locale-specific set of
 240    wide-characters for which none of `iswcntrl', `iswdigit',
 241    `iswpunct', or `iswspace' is true.  */
 242 extern int __iswalpha_l __P ((wint_t __wc, __locale_t __locale));
 243
 244 /* Test for any control wide character.  */
 245 extern int __iswcntrl_l __P ((wint_t __wc, __locale_t __locale));
 246
 247 /* Test for any wide character that corresponds to a decimal-digit
 248    character.  */
 249 extern int __iswdigit_l __P ((wint_t __wc, __locale_t __locale));
 250
 251 /* Test for any wide character for which `iswprint' is true and
 252    `iswspace' is false.  */
 253 extern int __iswgraph_l __P ((wint_t __wc, __locale_t __locale));
 254
 255 /* Test for any wide character that corresponds to a lowercase letter
 256    or is one of a locale-specific set of wide characters for which
 257    none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
 258 extern int __iswlower_l __P ((wint_t __wc, __locale_t __locale));
 259
 260 /* Test for any printing wide character.  */
 261 extern int __iswprint_l __P ((wint_t __wc, __locale_t __locale));
 262
 263 /* Test for any printing wide character that is one of a
 264    locale-specific et of wide characters for which neither `iswspace'
 265    nor `iswalnum' is true.  */
 266 extern int __iswpunct_l __P ((wint_t __wc, __locale_t __locale));
 267
 268 /* Test for any wide character that corresponds to a locale-specific
 269    set of wide characters for which none of `iswalnum', `iswgraph', or
 270    `iswpunct' is true.  */
 271 extern int __iswspace_l __P ((wint_t __wc, __locale_t __locale));
 272
 273 /* Test for any wide character that corresponds to an uppercase letter
 274    or is one of a locale-specific set of wide character for which none
 275    of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
 276 extern int __iswupper_l __P ((wint_t __wc, __locale_t __locale));
 277
 278 /* Test for any wide character that corresponds to a hexadecimal-digit
 279    character equivalent to that performed be the functions described
 280    in the previous subclause.  */
 281 extern int __iswxdigit_l __P ((wint_t __wc, __locale_t __locale));
 282
 283
 284 /* Construct value that describes a class of wide characters identified
 285    by the string argument PROPERTY.  */
 286 extern wctype_t __wctype_l __P ((__const char *__property,
 287                                  __locale_t __locale));
 288
 289 /* Determine whether the wide-character WC has the property described by
 290    DESC.  */
 291 extern int __iswctype_l __P ((wint_t __wc, wctype_t __desc,
 292                               __locale_t __locale));
 293
 294
 295 /*
 296  * Wide-character case-mapping functions.
 297  */
 298
 299 /* Converts an uppercase letter to the corresponding lowercase letter.  */
 300 extern wint_t __towlower_l __P ((wint_t __wc, __locale_t __locale));
 301
 302 /* Converts an lowercase letter to the corresponding uppercase letter.  */
 303 extern wint_t __towupper_l __P ((wint_t __wc, __locale_t __locale));
 304
 305 /* Map the wide character WC using the mapping described by DESC.  */
 306 extern wint_t __towctrans_l __P ((wint_t __wc, wctrans_t __desc,
 307                                   __locale_t __locale));
 308
 309
 310 #  ifndef __NO_WCTYPE
 311 #   define __iswalnum_l(wc, loc) __iswctype_l ((wc), _ISwalnum, (loc))
 312 #   define __iswalpha_l(wc, loc) __iswctype_l ((wc), _ISwalpha, (loc))
 313 #   define __iswcntrl_l(wc, loc) __iswctype_l ((wc), _ISwcntrl, (loc))
 314 #   define __iswdigit_l(wc, loc) __iswctype_l ((wc), _ISwdigit, (loc))
 315 #   define __iswlower_l(wc, loc) __iswctype_l ((wc), _ISwlower, (loc))
 316 #   define __iswgraph_l(wc, loc) __iswctype_l ((wc), _ISwgraph, (loc))
 317 #   define __iswprint_l(wc, loc) __iswctype_l ((wc), _ISwprint, (loc))
 318 #   define __iswpunct_l(wc, loc) __iswctype_l ((wc), _ISwpunct, (loc))
 319 #   define __iswspace_l(wc, loc) __iswctype_l ((wc), _ISwspace, (loc))
 320 #   define __iswupper_l(wc, loc) __iswctype_l ((wc), _ISwupper, (loc))
 321 #   define __iswxdigit_l(wc, loc) __iswctype_l ((wc), _ISwxdigit, (loc))
 322
 323 #   define __iswblank_l(wc, loc) __iswctype_l ((wc), _ISwblank, (loc))
 324
 325 #   define __towlower_l(wc, loc) __towctrans_l ((wc), (loc)->__ctype_tolower, \
 326                                                 (loc))
 327 #   define __towupper_l(wc, loc) __towctrans_l ((wc), (loc)->__ctype_toupper, \
 328                                                 (loc))
 329
 330 #  endif /* Not __NO_WCTYPE.  */
 331
 332 # endif /* Use GNU.  */
 333
 334 __END_DECLS
 335
 336 #endif  /* __WCTYPE_H defined.  */
 337
 338 #endif /* wctype.h  */