bsd/include/runetype.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*-
  23  * Copyright (c) 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  *
  26  * This code is derived from software contributed to Berkeley by
  27  * Paul Borman at Krystal Technologies.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by the University of
  40  *      California, Berkeley and its contributors.
  41  * 4. Neither the name of the University nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  *
  57  *      @(#)runetype.h  8.1 (Berkeley) 6/2/93
  58  */
  59
  60 #ifndef _RUNETYPE_H_
  61 #define _RUNETYPE_H_
  62
  63 #include <machine/ansi.h>
  64 #include <sys/cdefs.h>
  65
  66 #ifndef  _BSD_WCHAR_T_DEFINED_
  67 #define  _BSD_WCHAR_T_DEFINED_
  68 #ifndef _ANSI_SOURCE
  69 typedef _BSD_WCHAR_T_   rune_t;
  70 #endif
  71 typedef _BSD_WCHAR_T_   wchar_t;
  72 #endif
  73
  74 #define _CACHED_RUNES   (1 <<8 )        /* Must be a power of 2 */
  75 #define _CRMASK         (~(_CACHED_RUNES - 1))
  76
  77 /*
  78  * The lower 8 bits of runetype[] contain the digit value of the rune.
  79  */
  80 typedef struct {
  81         rune_t          min;            /* First rune of the range */
  82         rune_t          max;            /* Last rune (inclusive) of the range */
  83         rune_t          map;            /* What first maps to in maps */
  84         unsigned long   *types;         /* Array of types in range */
  85 } _RuneEntry;
  86
  87 typedef struct {
  88         int             nranges;        /* Number of ranges stored */
  89         _RuneEntry      *ranges;        /* Pointer to the ranges */
  90 } _RuneRange;
  91
  92 typedef struct {
  93         char            magic[8];       /* Magic saying what version we are */
  94         char            encoding[32];   /* ASCII name of this encoding */
  95
  96         rune_t          (*sgetrune)
  97             __P((const char *, unsigned int, char const **));
  98         int             (*sputrune)
  99             __P((rune_t, char *, unsigned int, char **));
 100         rune_t          invalid_rune;
 101
 102         unsigned long   runetype[_CACHED_RUNES];
 103         rune_t          maplower[_CACHED_RUNES];
 104         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 extern _RuneLocale _DefaultRuneLocale;
 122 extern _RuneLocale *_CurrentRuneLocale;
 123
 124 #endif  /* !_RUNETYPE_H_ */