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 <machine/ansi.h>
  44
  45 #ifndef _BSD_SIZE_T_DEFINED_
  46 #define _BSD_SIZE_T_DEFINED_
  47 typedef _BSD_SIZE_T_    size_t;
  48 #endif
  49
  50 #ifndef _BSD_CT_RUNE_T_DEFINED_
  51 #define _BSD_CT_RUNE_T_DEFINED_
  52 typedef _BSD_CT_RUNE_T_ ct_rune_t;
  53 #endif
  54
  55 #ifndef _BSD_RUNE_T_DEFINED_
  56 #define _BSD_RUNE_T_DEFINED_
  57 typedef _BSD_RUNE_T_    rune_t;
  58 #endif
  59
  60 #ifndef __cplusplus
  61 #ifndef _BSD_WCHAR_T_DEFINED_
  62 #define _BSD_WCHAR_T_DEFINED_
  63 #ifdef  __WCHAR_TYPE__
  64 typedef __WCHAR_TYPE__  wchar_t;
  65 #else   /* ! __WCHAR_TYPE__ */
  66 typedef _BSD_WCHAR_T_   wchar_t;
  67 #endif  /* __WCHAR_TYPE__ */
  68 #endif  /* _BSD_WCHAR_T_DEFINED_ */
  69 #endif  /* __cplusplus */
  70
  71 #ifndef _BSD_WINT_T_DEFINED_
  72 #define _BSD_WINT_T_DEFINED_
  73 typedef _BSD_WINT_T_    wint_t;
  74 #endif
  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         rune_t          min;            /* First rune of the range */
  84         rune_t          max;            /* Last rune (inclusive) of the range */
  85         rune_t          map;            /* What first maps to in maps */
  86         unsigned long   *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         rune_t          (*sgetrune)
  99            (const char *, size_t, char const **);
 100         int             (*sputrune)
 101            (rune_t, char *, size_t, char **);
 102         rune_t          invalid_rune;
 103
 104         unsigned long   runetype[_CACHED_RUNES];
 105         rune_t          maplower[_CACHED_RUNES];
 106         rune_t          mapupper[_CACHED_RUNES];
 107
 108         /*
 109          * The following are to deal with Runes larger than _CACHED_RUNES - 1.
 110          * Their data is actually contiguous with this structure so as to make
 111          * it easier to read/write from/to disk.
 112          */
 113         _RuneRange      runetype_ext;
 114         _RuneRange      maplower_ext;
 115         _RuneRange      mapupper_ext;
 116
 117         void            *variable;      /* Data which depends on the encoding */
 118         int             variable_len;   /* how long that data is */
 119 } _RuneLocale;
 120
 121 #define _RUNE_MAGIC_1   "RuneMagi"      /* Indicates version 0 of RuneLocale */
 122
 123 __BEGIN_DECLS
 124 extern _RuneLocale _DefaultRuneLocale;
 125 extern _RuneLocale *_CurrentRuneLocale;
 126 __END_DECLS
 127
 128 #endif  /* !_RUNETYPE_H_ */