include/runetype.h

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*-
  24  * Copyright (c) 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * This code is derived from software contributed to Berkeley by
  28  * Paul Borman at Krystal Technologies.
  29  *
  30  * Redistribution and use in source and binary forms, with or without
  31  * modification, are permitted provided that the following conditions
  32  * are met:
  33  * 1. Redistributions of source code must retain the above copyright
  34  *    notice, this list of conditions and the following disclaimer.
  35  * 2. Redistributions in binary form must reproduce the above copyright
  36  *    notice, this list of conditions and the following disclaimer in the
  37  *    documentation and/or other materials provided with the distribution.
  38  * 3. All advertising materials mentioning features or use of this software
  39  *    must display the following acknowledgement:
  40  *      This product includes software developed by the University of
  41  *      California, Berkeley and its contributors.
  42  * 4. Neither the name of the University nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  *
  58  *      @(#)runetype.h  8.1 (Berkeley) 6/2/93
  59  */
  60
  61 #ifndef _RUNETYPE_H_
  62 #define _RUNETYPE_H_
  63
  64 #include <sys/cdefs.h>
  65 #include <machine/ansi.h>
  66
  67 #ifndef _BSD_SIZE_T_DEFINED_
  68 #define _BSD_SIZE_T_DEFINED_
  69 typedef _BSD_SIZE_T_    size_t;
  70 #endif
  71
  72 #ifndef _BSD_CT_RUNE_T_DEFINED_
  73 #define _BSD_CT_RUNE_T_DEFINED_
  74 typedef _BSD_CT_RUNE_T_ ct_rune_t;
  75 #endif
  76
  77 #ifndef _BSD_RUNE_T_DEFINED_
  78 #define _BSD_RUNE_T_DEFINED_
  79 typedef _BSD_RUNE_T_    rune_t;
  80 #endif
  81
  82 #ifndef __cplusplus
  83 #ifndef _BSD_WCHAR_T_DEFINED_
  84 #define _BSD_WCHAR_T_DEFINED_
  85 #ifdef  __WCHAR_TYPE__
  86 typedef __WCHAR_TYPE__  wchar_t;
  87 #else   /* ! __WCHAR_TYPE__ */
  88 typedef _BSD_WCHAR_T_   wchar_t;
  89 #endif  /* __WCHAR_TYPE__ */
  90 #endif  /* _BSD_WCHAR_T_DEFINED_ */
  91 #endif  /* __cplusplus */
  92
  93 #ifndef _BSD_WINT_T_DEFINED_
  94 #define _BSD_WINT_T_DEFINED_
  95 typedef _BSD_WINT_T_    wint_t;
  96 #endif
  97
  98 #define _CACHED_RUNES   (1 <<8 )        /* Must be a power of 2 */
  99 #define _CRMASK         (~(_CACHED_RUNES - 1))
 100
 101 /*
 102  * The lower 8 bits of runetype[] contain the digit value of the rune.
 103  */
 104 typedef struct {
 105         rune_t          min;            /* First rune of the range */
 106         rune_t          max;            /* Last rune (inclusive) of the range */
 107         rune_t          map;            /* What first maps to in maps */
 108         unsigned long   *types;         /* Array of types in range */
 109 } _RuneEntry;
 110
 111 typedef struct {
 112         int             nranges;        /* Number of ranges stored */
 113         _RuneEntry      *ranges;        /* Pointer to the ranges */
 114 } _RuneRange;
 115
 116 typedef struct {
 117         char            magic[8];       /* Magic saying what version we are */
 118         char            encoding[32];   /* ASCII name of this encoding */
 119
 120         rune_t          (*sgetrune)
 121            (const char *, size_t, char const **);
 122         int             (*sputrune)
 123            (rune_t, char *, size_t, char **);
 124         rune_t          invalid_rune;
 125
 126         unsigned long   runetype[_CACHED_RUNES];
 127         rune_t          maplower[_CACHED_RUNES];
 128         rune_t          mapupper[_CACHED_RUNES];
 129
 130         /*
 131          * The following are to deal with Runes larger than _CACHED_RUNES - 1.
 132          * Their data is actually contiguous with this structure so as to make
 133          * it easier to read/write from/to disk.
 134          */
 135         _RuneRange      runetype_ext;
 136         _RuneRange      maplower_ext;
 137         _RuneRange      mapupper_ext;
 138
 139         void            *variable;      /* Data which depends on the encoding */
 140         int             variable_len;   /* how long that data is */
 141 } _RuneLocale;
 142
 143 #define _RUNE_MAGIC_1   "RuneMagi"      /* Indicates version 0 of RuneLocale */
 144
 145 __BEGIN_DECLS
 146 extern _RuneLocale _DefaultRuneLocale;
 147 extern _RuneLocale *_CurrentRuneLocale;
 148 __END_DECLS
 149
 150 #endif  /* !_RUNETYPE_H_ */