include/runetype.h

   1 /*-
   2  * Copyright (c) 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Paul Borman at Krystal Technologies.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)runetype.h  8.1 (Berkeley) 6/2/93
  37  */
  38
  39 #ifndef _RUNETYPE_H_
  40 #define _RUNETYPE_H_
  41
  42 #include <_types.h>
  43
  44 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
  45
  46 #ifndef _SIZE_T
  47 #define _SIZE_T
  48 typedef __darwin_size_t         size_t;
  49 #endif
  50
  51 #ifndef _CT_RUNE_T
  52 #define _CT_RUNE_T
  53 typedef __darwin_ct_rune_t      ct_rune_t;
  54 #endif
  55
  56 #ifndef _RUNE_T
  57 #define _RUNE_T
  58 typedef __darwin_rune_t         rune_t;
  59 #endif
  60
  61 #ifndef __cplusplus
  62 #ifndef _WCHAR_T
  63 #define _WCHAR_T
  64 typedef __darwin_wchar_t        wchar_t;
  65 #endif  /* _WCHAR_T */
  66 #endif  /* __cplusplus */
  67
  68 #ifndef _WINT_T
  69 #define _WINT_T
  70 typedef __darwin_wint_t         wint_t;
  71 #endif
  72
  73 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
  74
  75 #define _CACHED_RUNES   (1 <<8 )        /* Must be a power of 2 */
  76 #define _CRMASK         (~(_CACHED_RUNES - 1))
  77
  78 /*
  79  * The lower 8 bits of runetype[] contain the digit value of the rune.
  80  */
  81 typedef struct {
  82         __darwin_rune_t __min;          /* First rune of the range */
  83         __darwin_rune_t __max;          /* Last rune (inclusive) of the range */
  84         __darwin_rune_t __map;          /* What first maps to in maps */
  85         __uint32_t      *__types;       /* Array of types in range */
  86 } _RuneEntry;
  87
  88 typedef struct {
  89         int             __nranges;      /* Number of ranges stored */
  90         _RuneEntry      *__ranges;      /* Pointer to the ranges */
  91 } _RuneRange;
  92
  93 typedef struct {
  94         char            __name[14];     /* CHARCLASS_NAME_MAX = 14 */
  95         __uint32_t      __mask;         /* charclass mask */
  96 } _RuneCharClass;
  97
  98 typedef struct {
  99         char            __magic[8];     /* Magic saying what version we are */
 100         char            __encoding[32]; /* ASCII name of this encoding */
 101
 102         __darwin_rune_t (*__sgetrune)(const char *, __darwin_size_t, char const **);
 103         int             (*__sputrune)(__darwin_rune_t, char *, __darwin_size_t, char **);
 104         __darwin_rune_t __invalid_rune;
 105
 106         __uint32_t      __runetype[_CACHED_RUNES];
 107         __darwin_rune_t __maplower[_CACHED_RUNES];
 108         __darwin_rune_t __mapupper[_CACHED_RUNES];
 109
 110         /*
 111          * The following are to deal with Runes larger than _CACHED_RUNES - 1.
 112          * Their data is actually contiguous with this structure so as to make
 113          * it easier to read/write from/to disk.
 114          */
 115         _RuneRange      __runetype_ext;
 116         _RuneRange      __maplower_ext;
 117         _RuneRange      __mapupper_ext;
 118
 119         void            *__variable;    /* Data which depends on the encoding */
 120         int             __variable_len; /* how long that data is */
 121
 122         /*
 123          * extra fields to deal with arbitrary character classes
 124          */
 125         int             __ncharclasses;
 126         _RuneCharClass  *__charclasses;
 127 } _RuneLocale;
 128
 129 #define _RUNE_MAGIC_A   "RuneMagA"      /* Indicates version A of RuneLocale */
 130
 131 __BEGIN_DECLS
 132 extern _RuneLocale _DefaultRuneLocale;
 133 extern _RuneLocale *_CurrentRuneLocale;
 134 __END_DECLS
 135
 136 #endif  /* !_RUNETYPE_H_ */