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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)runetype.h 8.1 (Berkeley) 6/2/93
33 * $FreeBSD: head/include/runetype.h 232620 2012-03-06 20:15:23Z dim $
34 */
35
36 #ifndef _RUNETYPE_H_
37 #define _RUNETYPE_H_
38
39 #include <sys/cdefs.h>
40 #include <machine/stdint.h>
41
42 #define _CACHED_RUNES (1 <<8 ) /* Must be a power of 2 */
43 #define _CRMASK (~(_CACHED_RUNES - 1))
44
45 /* See comments in <ctype.h> about __ct_rune_t. */
46 #ifndef ___CT_RUNE_T_DECLARED
47 typedef int __ct_rune_t; /* Arg type for ctype funcs */
48 #define ___CT_RUNE_T_DECLARED
49 #endif
50
51 typedef __ct_rune_t __rune_t; /* Internal runetype.h type */
52
53 /*
54 * The lower 8 bits of runetype[] contain the digit value of the rune.
55 */
56 typedef struct {
57 __rune_t __min; /* First rune of the range */
58 __rune_t __max; /* Last rune (inclusive) of the range */
59 __rune_t __map; /* What first maps to in maps */
60 unsigned long *__types; /* Array of types in range */
61 } _RuneEntry;
62
63 typedef struct {
64 int __nranges; /* Number of ranges stored */
65 _RuneEntry *__ranges; /* Pointer to the ranges */
66 } _RuneRange;
67
68 typedef struct {
69 char __magic[8]; /* Magic saying what version we are */
70 char __encoding[32]; /* ASCII name of this encoding */
71
72 __rune_t (*__sgetrune)(const char *, __size_t, char const **);
73 int (*__sputrune)(__rune_t, char *, __size_t, char **);
74 __rune_t __invalid_rune;
75
76 unsigned long __runetype[_CACHED_RUNES];
77 __rune_t __maplower[_CACHED_RUNES];
78 __rune_t __mapupper[_CACHED_RUNES];
79
80 /*
81 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
82 * Their data is actually contiguous with this structure so as to make
83 * it easier to read/write from/to disk.
84 */
85 _RuneRange __runetype_ext;
86 _RuneRange __maplower_ext;
87 _RuneRange __mapupper_ext;
88
89 void *__variable; /* Data which depends on the encoding */
90 int __variable_len; /* how long that data is */
91 } _RuneLocale;
92
93 #define _RUNE_MAGIC_1 "RuneMagi" /* Indicates version 0 of RuneLocale */
94 __BEGIN_DECLS
95 extern const _RuneLocale _DefaultRuneLocale;
96 extern const _RuneLocale *_CurrentRuneLocale;
97 #if defined(__RUNETYPE_INTERNAL)
98 extern const _RuneLocale *__getCurrentRuneLocale(void);
99 #else
100 extern __thread const _RuneLocale *_ThreadRuneLocale;
__getCurrentRuneLocale(void)101 static __inline const _RuneLocale *__getCurrentRuneLocale(void)
102 {
103
104 if (_ThreadRuneLocale)
105 return _ThreadRuneLocale;
106 if (_CurrentRuneLocale)
107 return _CurrentRuneLocale;
108 return &_DefaultRuneLocale;
109 }
110 #endif /* __RUNETYPE_INTERNAL */
111 #define _CurrentRuneLocale (__getCurrentRuneLocale())
112 __END_DECLS
113
114 #endif /* !_RUNETYPE_H_ */
115