include/ctype.h

   1 /*
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * (c) UNIX System Laboratories, Inc.
   5  * All or some portions of this file are derived from material licensed
   6  * to the University of California by American Telephone and Telegraph
   7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   8  * the permission of UNIX System Laboratories, Inc.
   9  *
  10  * This code is derived from software contributed to Berkeley by
  11  * Paul Borman at Krystal Technologies.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  *      @(#)ctype.h     8.4 (Berkeley) 1/21/94
  38  *      $FreeBSD: head/include/ctype.h 233600 2012-03-28 12:11:54Z theraven $
  39  */
  40
  41 #ifndef _CTYPE_H_
  42 #define _CTYPE_H_
  43
  44 #include <sys/cdefs.h>
  45 #include <sys/types.h>
  46
  47 #define _CTYPE_A        0x00000100L             /* Alpha */
  48 #define _CTYPE_C        0x00000200L             /* Control */
  49 #define _CTYPE_D        0x00000400L             /* Digit */
  50 #define _CTYPE_G        0x00000800L             /* Graph */
  51 #define _CTYPE_L        0x00001000L             /* Lower */
  52 #define _CTYPE_P        0x00002000L             /* Punct */
  53 #define _CTYPE_S        0x00004000L             /* Space */
  54 #define _CTYPE_U        0x00008000L             /* Upper */
  55 #define _CTYPE_X        0x00010000L             /* X digit */
  56 #define _CTYPE_B        0x00020000L             /* Blank */
  57 #define _CTYPE_R        0x00040000L             /* Print */
  58 #define _CTYPE_I        0x00080000L             /* Ideogram */
  59 #define _CTYPE_T        0x00100000L             /* Special */
  60 #define _CTYPE_Q        0x00200000L             /* Phonogram */
  61 #define _CTYPE_N        0x00400000L             /* Number (superset of digit) */
  62 #define _CTYPE_SW0      0x20000000L             /* 0 width character */
  63 #define _CTYPE_SW1      0x40000000L             /* 1 width character */
  64 #define _CTYPE_SW2      0x80000000L             /* 2 width character */
  65 #define _CTYPE_SW3      0xc0000000L             /* 3 width character */
  66 #define _CTYPE_SWM      0xe0000000L             /* Mask for screen width data */
  67 #define _CTYPE_SWS      30                      /* Bits to shift to get width */
  68
  69 /* See comments in <sys/_types.h> about __ct_rune_t. */
  70 __BEGIN_DECLS
  71 unsigned long   ___runetype(__ct_rune_t) __pure;
  72 __ct_rune_t     ___tolower(__ct_rune_t) __pure;
  73 __ct_rune_t     ___toupper(__ct_rune_t) __pure;
  74 __END_DECLS
  75
  76 /*
  77  * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
  78  * to generate code for extern versions of all our inline functions.
  79  */
  80 #ifdef _EXTERNALIZE_CTYPE_INLINES_
  81 #define _USE_CTYPE_INLINE_
  82 #define static
  83 #define __inline
  84 #endif
  85
  86 extern int __mb_sb_limit;
  87
  88 /*
  89  * Use inline functions if we are allowed to and the compiler supports them.
  90  */
  91 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
  92     (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
  93
  94 #include <runetype.h>
  95
  96 static __inline int
  97 __maskrune(__ct_rune_t _c, unsigned long _f)
  98 {
  99         return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
 100                 _CurrentRuneLocale->__runetype[_c]) & _f;
 101 }
 102
 103 static __inline int
 104 __sbmaskrune(__ct_rune_t _c, unsigned long _f)
 105 {
 106         return (_c < 0 || _c >= __mb_sb_limit) ? 0 :
 107                _CurrentRuneLocale->__runetype[_c] & _f;
 108 }
 109
 110 static __inline int
 111 __istype(__ct_rune_t _c, unsigned long _f)
 112 {
 113         return (!!__maskrune(_c, _f));
 114 }
 115
 116 static __inline int
 117 __sbistype(__ct_rune_t _c, unsigned long _f)
 118 {
 119         return (!!__sbmaskrune(_c, _f));
 120 }
 121
 122 static __inline int
 123 __isctype(__ct_rune_t _c, unsigned long _f)
 124 {
 125         return (_c < 0 || _c >= 128) ? 0 :
 126                !!(_DefaultRuneLocale.__runetype[_c] & _f);
 127 }
 128
 129 static __inline __ct_rune_t
 130 __toupper(__ct_rune_t _c)
 131 {
 132         return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
 133                _CurrentRuneLocale->__mapupper[_c];
 134 }
 135
 136 static __inline __ct_rune_t
 137 __sbtoupper(__ct_rune_t _c)
 138 {
 139         return (_c < 0 || _c >= __mb_sb_limit) ? _c :
 140                _CurrentRuneLocale->__mapupper[_c];
 141 }
 142
 143 static __inline __ct_rune_t
 144 __tolower(__ct_rune_t _c)
 145 {
 146         return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
 147                _CurrentRuneLocale->__maplower[_c];
 148 }
 149
 150 static __inline __ct_rune_t
 151 __sbtolower(__ct_rune_t _c)
 152 {
 153         return (_c < 0 || _c >= __mb_sb_limit) ? _c :
 154                _CurrentRuneLocale->__maplower[_c];
 155 }
 156
 157 static __inline int
 158 __wcwidth(__ct_rune_t _c)
 159 {
 160         unsigned int _x;
 161
 162         if (_c == 0)
 163                 return (0);
 164         _x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
 165         if ((_x & _CTYPE_SWM) != 0)
 166                 return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
 167         return ((_x & _CTYPE_R) != 0 ? 1 : -1);
 168 }
 169
 170 #else /* not using inlines */
 171
 172 __BEGIN_DECLS
 173 int             __maskrune(__ct_rune_t, unsigned long);
 174 int             __sbmaskrune(__ct_rune_t, unsigned long);
 175 int             __istype(__ct_rune_t, unsigned long);
 176 int             __sbistype(__ct_rune_t, unsigned long);
 177 int             __isctype(__ct_rune_t, unsigned long);
 178 __ct_rune_t     __toupper(__ct_rune_t);
 179 __ct_rune_t     __sbtoupper(__ct_rune_t);
 180 __ct_rune_t     __tolower(__ct_rune_t);
 181 __ct_rune_t     __sbtolower(__ct_rune_t);
 182 int             __wcwidth(__ct_rune_t);
 183 __END_DECLS
 184 #endif /* using inlines */
 185
 186
 187 __BEGIN_DECLS
 188 int     isalnum(int);
 189 int     isalpha(int);
 190 int     iscntrl(int);
 191 int     isdigit(int);
 192 int     isgraph(int);
 193 int     islower(int);
 194 int     isprint(int);
 195 int     ispunct(int);
 196 int     isspace(int);
 197 int     isupper(int);
 198 int     isxdigit(int);
 199 int     tolower(int);
 200 int     toupper(int);
 201
 202 #if __XSI_VISIBLE
 203 int     isascii(int);
 204 int     toascii(int);
 205 #endif
 206
 207 #if __ISO_C_VISIBLE >= 1999
 208 int     isblank(int);
 209 #endif
 210
 211 #if __BSD_VISIBLE
 212 int     digittoint(int);
 213 int     ishexnumber(int);
 214 int     isideogram(int);
 215 int     isnumber(int);
 216 int     isphonogram(int);
 217 int     isrune(int);
 218 int     isspecial(int);
 219 #endif
 220
 221 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
 222 #include <xlocale/_ctype.h>
 223 #endif
 224 __END_DECLS
 225
 226 #ifndef __cplusplus
 227 #define isalnum(c)      __sbistype((c), _CTYPE_A|_CTYPE_D|_CTYPE_N)
 228 #define isalpha(c)      __sbistype((c), _CTYPE_A)
 229 #define iscntrl(c)      __sbistype((c), _CTYPE_C)
 230 #define isdigit(c)      __sbistype((c), _CTYPE_D)
 231 #define isgraph(c)      __sbistype((c), _CTYPE_G)
 232 #define islower(c)      __sbistype((c), _CTYPE_L)
 233 #define isprint(c)      __sbistype((c), _CTYPE_R)
 234 #define ispunct(c)      __sbistype((c), _CTYPE_P)
 235 #define isspace(c)      __sbistype((c), _CTYPE_S)
 236 #define isupper(c)      __sbistype((c), _CTYPE_U)
 237 #define isxdigit(c)     __sbistype((c), _CTYPE_X)
 238 #define tolower(c)      __sbtolower(c)
 239 #define toupper(c)      __sbtoupper(c)
 240 #endif /* !__cplusplus */
 241
 242 #if __XSI_VISIBLE
 243 /*
 244  * POSIX.1-2001 specifies _tolower() and _toupper() to be macros equivalent to
 245  * tolower() and toupper() respectively, minus extra checking to ensure that
 246  * the argument is a lower or uppercase letter respectively.  We've chosen to
 247  * implement these macros with the same error checking as tolower() and
 248  * toupper() since this doesn't violate the specification itself, only its
 249  * intent.  We purposely leave _tolower() and _toupper() undocumented to
 250  * discourage their use.
 251  *
 252  * XXX isascii() and toascii() should similarly be undocumented.
 253  */
 254 #define _tolower(c)     __sbtolower(c)
 255 #define _toupper(c)     __sbtoupper(c)
 256 #define isascii(c)      (((c) & ~0x7F) == 0)
 257 #define toascii(c)      ((c) & 0x7F)
 258 #endif
 259
 260 #if __ISO_C_VISIBLE >= 1999 && !defined(__cplusplus)
 261 #define isblank(c)      __sbistype((c), _CTYPE_B)
 262 #endif
 263
 264 #if __BSD_VISIBLE
 265 #define digittoint(c)   __sbmaskrune((c), 0xFF)
 266 #define ishexnumber(c)  __sbistype((c), _CTYPE_X)
 267 #define isideogram(c)   __sbistype((c), _CTYPE_I)
 268 #define isnumber(c)     __sbistype((c), _CTYPE_D|_CTYPE_N)
 269 #define isphonogram(c)  __sbistype((c), _CTYPE_Q)
 270 #define isrune(c)       __sbistype((c), 0xFFFFFF00L)
 271 #define isspecial(c)    __sbistype((c), _CTYPE_T)
 272 #endif
 273
 274 #endif /* !_CTYPE_H_ */