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 <sys/cdefs.h>
  43 #include <_types.h>
  44
  45 #ifndef _POSIX_C_SOURCE
  46
  47 #ifndef _SIZE_T
  48 #define _SIZE_T
  49 typedef __darwin_size_t         size_t;
  50 #endif
  51
  52 #ifndef _CT_RUNE_T
  53 #define _CT_RUNE_T
  54 typedef __darwin_ct_rune_t      ct_rune_t;
  55 #endif
  56
  57 #ifndef _RUNE_T
  58 #define _RUNE_T
  59 typedef __darwin_rune_t         rune_t;
  60 #endif
  61
  62 #ifndef __cplusplus
  63 #ifndef _WCHAR_T
  64 #define _WCHAR_T
  65 typedef __darwin_wchar_t        wchar_t;
  66 #endif  /* _WCHAR_T */
  67 #endif  /* __cplusplus */
  68
  69 #ifndef _WINT_T
  70 #define _WINT_T
  71 typedef __darwin_wint_t         wint_t;
  72 #endif
  73
  74 #endif /* !_POSIX_C_SOURCE */
  75
  76 #define _CACHED_RUNES   (1 <<8 )        /* Must be a power of 2 */
  77 #define _CRMASK         (~(_CACHED_RUNES - 1))
  78
  79 /*
  80  * The lower 8 bits of runetype[] contain the digit value of the rune.
  81  */
  82 typedef struct {
  83         __darwin_rune_t __min;          /* First rune of the range */
  84         __darwin_rune_t __max;          /* Last rune (inclusive) of the range */
  85         __darwin_rune_t __map;          /* What first maps to in maps */
  86         __uint32_t      *__types;       /* Array of types in range */
  87 } _RuneEntry;
  88
  89 typedef struct {
  90         int             __nranges;      /* Number of ranges stored */
  91         _RuneEntry      *__ranges;      /* Pointer to the ranges */
  92 } _RuneRange;
  93
  94 typedef struct {
  95         char            __magic[8];     /* Magic saying what version we are */
  96         char            __encoding[32]; /* ASCII name of this encoding */
  97
  98         __darwin_rune_t (*__sgetrune)(const char *, __darwin_size_t, char const **);
  99         int             (*__sputrune)(__darwin_rune_t, char *, __darwin_size_t, char **);
 100         __darwin_rune_t __invalid_rune;
 101
 102         __uint32_t      __runetype[_CACHED_RUNES];
 103         __darwin_rune_t __maplower[_CACHED_RUNES];
 104         __darwin_rune_t __mapupper[_CACHED_RUNES];
 105
 106         /*
 107          * The following are to deal with Runes larger than _CACHED_RUNES - 1.
 108          * Their data is actually contiguous with this structure so as to make
 109          * it easier to read/write from/to disk.
 110          */
 111         _RuneRange      __runetype_ext;
 112         _RuneRange      __maplower_ext;
 113         _RuneRange      __mapupper_ext;
 114
 115         void            *__variable;    /* Data which depends on the encoding */
 116         int             __variable_len; /* how long that data is */
 117 } _RuneLocale;
 118
 119 #define _RUNE_MAGIC_1   "RuneMagi"      /* Indicates version 0 of RuneLocale */
 120
 121 __BEGIN_DECLS
 122 extern _RuneLocale _DefaultRuneLocale;
 123 extern _RuneLocale *_CurrentRuneLocale;
 124 __END_DECLS
 125
 126 #endif  /* !_RUNETYPE_H_ */