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_SW0      0x20000000L             /* 0 width character */
  62 #define _CTYPE_SW1      0x40000000L             /* 1 width character */
  63 #define _CTYPE_SW2      0x80000000L             /* 2 width character */
  64 #define _CTYPE_SW3      0xc0000000L             /* 3 width character */
  65 #define _CTYPE_SWM      0xe0000000L             /* Mask for screen width data */
  66 #define _CTYPE_SWS      30                      /* Bits to shift to get width */
  67
  68 /* See comments in <sys/_types.h> about __ct_rune_t. */
  69 __BEGIN_DECLS
  70 unsigned long   ___runetype(__ct_rune_t) __pure;
  71 __ct_rune_t     ___tolower(__ct_rune_t) __pure;
  72 __ct_rune_t     ___toupper(__ct_rune_t) __pure;
  73 __END_DECLS
  74
  75 /*
  76  * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
  77  * to generate code for extern versions of all our inline functions.
  78  */
  79 #ifdef _EXTERNALIZE_CTYPE_INLINES_
  80 #define _USE_CTYPE_INLINE_
  81 #define static
  82 #define __inline
  83 #endif
  84
  85 extern int __mb_sb_limit;
  86
  87 /*
  88  * Use inline functions if we are allowed to and the compiler supports them.
  89  */
  90 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
  91     (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
  92
  93 #include <runetype.h>
  94
  95 static __inline int
  96 __maskrune(__ct_rune_t _c, unsigned long _f)
  97 {
  98         return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
  99                 _CurrentRuneLocale->__runetype[_c]) & _f;
 100 }
 101
 102 static __inline int
 103 __sbmaskrune(__ct_rune_t _c, unsigned long _f)
 104 {
 105         return (_c < 0 || _c >= __mb_sb_limit) ? 0 :
 106                _CurrentRuneLocale->__runetype[_c] & _f;
 107 }
 108
 109 static __inline int
 110 __istype(__ct_rune_t _c, unsigned long _f)
 111 {
 112         return (!!__maskrune(_c, _f));
 113 }
 114
 115 static __inline int
 116 __sbistype(__ct_rune_t _c, unsigned long _f)
 117 {
 118         return (!!__sbmaskrune(_c, _f));
 119 }
 120
 121 static __inline int
 122 __isctype(__ct_rune_t _c, unsigned long _f)
 123 {
 124         return (_c < 0 || _c >= 128) ? 0 :
 125                !!(_DefaultRuneLocale.__runetype[_c] & _f);
 126 }
 127
 128 static __inline __ct_rune_t
 129 __toupper(__ct_rune_t _c)
 130 {
 131         return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
 132                _CurrentRuneLocale->__mapupper[_c];
 133 }
 134
 135 static __inline __ct_rune_t
 136 __sbtoupper(__ct_rune_t _c)
 137 {
 138         return (_c < 0 || _c >= __mb_sb_limit) ? _c :
 139                _CurrentRuneLocale->__mapupper[_c];
 140 }
 141
 142 static __inline __ct_rune_t
 143 __tolower(__ct_rune_t _c)
 144 {
 145         return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
 146                _CurrentRuneLocale->__maplower[_c];
 147 }
 148
 149 static __inline __ct_rune_t
 150 __sbtolower(__ct_rune_t _c)
 151 {
 152         return (_c < 0 || _c >= __mb_sb_limit) ? _c :
 153                _CurrentRuneLocale->__maplower[_c];
 154 }
 155
 156 static __inline int
 157 __wcwidth(__ct_rune_t _c)
 158 {
 159         unsigned int _x;
 160
 161         if (_c == 0)
 162                 return (0);
 163         _x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
 164         if ((_x & _CTYPE_SWM) != 0)
 165                 return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
 166         return ((_x & _CTYPE_R) != 0 ? 1 : -1);
 167 }
 168
 169 #else /* not using inlines */
 170
 171 __BEGIN_DECLS
 172 int             __maskrune(__ct_rune_t, unsigned long);
 173 int             __sbmaskrune(__ct_rune_t, unsigned long);
 174 int             __istype(__ct_rune_t, unsigned long);
 175 int             __sbistype(__ct_rune_t, unsigned long);
 176 int             __isctype(__ct_rune_t, unsigned long);
 177 __ct_rune_t     __toupper(__ct_rune_t);
 178 __ct_rune_t     __sbtoupper(__ct_rune_t);
 179 __ct_rune_t     __tolower(__ct_rune_t);
 180 __ct_rune_t     __sbtolower(__ct_rune_t);
 181 int             __wcwidth(__ct_rune_t);
 182 __END_DECLS
 183 #endif /* using inlines */
 184
 185
 186 __BEGIN_DECLS
 187 int     isalnum(int);
 188 int     isalpha(int);
 189 int     iscntrl(int);
 190 int     isdigit(int);
 191 int     isgraph(int);
 192 int     islower(int);
 193 int     isprint(int);
 194 int     ispunct(int);
 195 int     isspace(int);
 196 int     isupper(int);
 197 int     isxdigit(int);
 198 int     tolower(int);
 199 int     toupper(int);
 200
 201 #if __XSI_VISIBLE
 202 int     isascii(int);
 203 int     toascii(int);
 204 #endif
 205
 206 #if __ISO_C_VISIBLE >= 1999
 207 int     isblank(int);
 208 #endif
 209
 210 #if __BSD_VISIBLE
 211 int     digittoint(int);
 212 int     ishexnumber(int);
 213 int     isideogram(int);
 214 int     isnumber(int);
 215 int     isphonogram(int);
 216 int     isrune(int);
 217 int     isspecial(int);
 218 #endif
 219
 220 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
 221 #include <xlocale/_ctype.h>
 222 #endif
 223 __END_DECLS
 224
 225 #ifndef __cplusplus
 226 #define isalnum(c)      __sbistype((c), _CTYPE_A|_CTYPE_D)
 227 #define isalpha(c)      __sbistype((c), _CTYPE_A)
 228 #define iscntrl(c)      __sbistype((c), _CTYPE_C)
 229 #define isdigit(c)      __isctype((c), _CTYPE_D) /* ANSI -- locale independent */
 230 #define isgraph(c)      __sbistype((c), _CTYPE_G)
 231 #define islower(c)      __sbistype((c), _CTYPE_L)
 232 #define isprint(c)      __sbistype((c), _CTYPE_R)
 233 #define ispunct(c)      __sbistype((c), _CTYPE_P)
 234 #define isspace(c)      __sbistype((c), _CTYPE_S)
 235 #define isupper(c)      __sbistype((c), _CTYPE_U)
 236 #define isxdigit(c)     __isctype((c), _CTYPE_X) /* ANSI -- locale independent */
 237 #define tolower(c)      __sbtolower(c)
 238 #define toupper(c)      __sbtoupper(c)
 239 #endif /* !__cplusplus */
 240
 241 #if __XSI_VISIBLE
 242 /*
 243  * POSIX.1-2001 specifies _tolower() and _toupper() to be macros equivalent to
 244  * tolower() and toupper() respectively, minus extra checking to ensure that
 245  * the argument is a lower or uppercase letter respectively.  We've chosen to
 246  * implement these macros with the same error checking as tolower() and
 247  * toupper() since this doesn't violate the specification itself, only its
 248  * intent.  We purposely leave _tolower() and _toupper() undocumented to
 249  * discourage their use.
 250  *
 251  * XXX isascii() and toascii() should similarly be undocumented.
 252  */
 253 #define _tolower(c)     __sbtolower(c)
 254 #define _toupper(c)     __sbtoupper(c)
 255 #define isascii(c)      (((c) & ~0x7F) == 0)
 256 #define toascii(c)      ((c) & 0x7F)
 257 #endif
 258
 259 #if __ISO_C_VISIBLE >= 1999 && !defined(__cplusplus)
 260 #define isblank(c)      __sbistype((c), _CTYPE_B)
 261 #endif
 262
 263 #if __BSD_VISIBLE
 264 #define digittoint(c)   __sbmaskrune((c), 0xFF)
 265 #define ishexnumber(c)  __sbistype((c), _CTYPE_X)
 266 #define isideogram(c)   __sbistype((c), _CTYPE_I)
 267 #define isnumber(c)     __sbistype((c), _CTYPE_D)
 268 #define isphonogram(c)  __sbistype((c), _CTYPE_Q)
 269 #define isrune(c)       __sbistype((c), 0xFFFFFF00L)
 270 #define isspecial(c)    __sbistype((c), _CTYPE_T)
 271 #endif
 272
 273 #endif /* !_CTYPE_H_ */