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 #include <sys/_types/_size_t.h>
  47 #include <sys/_types/_ct_rune_t.h>
  48 #include <sys/_types/_rune_t.h>
  49 #include <sys/_types/_wchar_t.h>
  50 #include <sys/_types/_wint_t.h>
  51
  52 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
  53
  54 #define _CACHED_RUNES   (1 <<8 )        /* Must be a power of 2 */
  55 #define _CRMASK         (~(_CACHED_RUNES - 1))
  56
  57 /*
  58  * The lower 8 bits of runetype[] contain the digit value of the rune.
  59  */
  60 typedef struct {
  61         __darwin_rune_t __min;          /* First rune of the range */
  62         __darwin_rune_t __max;          /* Last rune (inclusive) of the range */
  63         __darwin_rune_t __map;          /* What first maps to in maps */
  64         __uint32_t      *__types;       /* Array of types in range */
  65 } _RuneEntry;
  66
  67 typedef struct {
  68         int             __nranges;      /* Number of ranges stored */
  69         _RuneEntry      *__ranges;      /* Pointer to the ranges */
  70 } _RuneRange;
  71
  72 typedef struct {
  73         char            __name[14];     /* CHARCLASS_NAME_MAX = 14 */
  74         __uint32_t      __mask;         /* charclass mask */
  75 } _RuneCharClass;
  76
  77 typedef struct {
  78         char            __magic[8];     /* Magic saying what version we are */
  79         char            __encoding[32]; /* ASCII name of this encoding */
  80
  81         __darwin_rune_t (*__sgetrune)(const char *, __darwin_size_t, char const **);
  82         int             (*__sputrune)(__darwin_rune_t, char *, __darwin_size_t, char **);
  83         __darwin_rune_t __invalid_rune;
  84
  85         __uint32_t      __runetype[_CACHED_RUNES];
  86         __darwin_rune_t __maplower[_CACHED_RUNES];
  87         __darwin_rune_t __mapupper[_CACHED_RUNES];
  88
  89         /*
  90          * The following are to deal with Runes larger than _CACHED_RUNES - 1.
  91          * Their data is actually contiguous with this structure so as to make
  92          * it easier to read/write from/to disk.
  93          */
  94         _RuneRange      __runetype_ext;
  95         _RuneRange      __maplower_ext;
  96         _RuneRange      __mapupper_ext;
  97
  98         void            *__variable;    /* Data which depends on the encoding */
  99         int             __variable_len; /* how long that data is */
 100
 101         /*
 102          * extra fields to deal with arbitrary character classes
 103          */
 104         int             __ncharclasses;
 105         _RuneCharClass  *__charclasses;
 106 } _RuneLocale;
 107
 108 #define _RUNE_MAGIC_A   "RuneMagA"      /* Indicates version A of RuneLocale */
 109
 110 __BEGIN_DECLS
 111 extern _RuneLocale _DefaultRuneLocale;
 112 extern _RuneLocale *_CurrentRuneLocale;
 113 __END_DECLS
 114
 115 #endif  /* !_RUNETYPE_H_ */