1 /*
2 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Paul Borman at Krystal Technologies.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33 /*
34 * Because we borrowed the __rune_t defintions from _types.h, we need
35 * this copyright notice as well:
36 *
37 * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 */
61
62 #ifndef _RUNETYPE_H_
63 #define _RUNETYPE_H_
64
65 #define _CACHED_RUNES (1 << 8) /* Must be a power of 2 */
66 #define _CRMASK (~(_CACHED_RUNES - 1))
67
68 /*
69 * rune_t is declared to be an ``int'' instead of the more natural
70 * ``unsigned long'' or ``long''. Two things are happening here. It is not
71 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also,
72 * it looks like 10646 will be a 31 bit standard. This means that if your
73 * ints cannot hold 32 bits, you will be in trouble. The reason an int was
74 * chosen over a long is that the is*() and to*() routines take ints (says
75 * ANSI C), but they use __ct_rune_t instead of int.
76 *
77 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
78 * be instantiated outside of lib/libc/locale. Use wchar_t. wchar_t and
79 * rune_t must be the same type. Also, wint_t must be no narrower than
80 * wchar_t, and should be able to hold all members of the largest
81 * character set plus one extra value (WEOF), and must be at least 16 bits.
82 *
83 * For compatibility with Solaris, we want to use long in ILP32, and int in
84 * LP64. This is due to historical Solaris legacy. (See <wchar.h> for
85 * the definition.)
86 */
87
88 #if defined(_LP64)
89 typedef int __ct_rune_t; /* arg type for ctype funcs */
90 #else
91 typedef int __ct_rune_t;
92 #endif
93
94 typedef int __rune_t; /* rune_t (see above) */
95
96 /*
97 * The lower 8 bits of runetype[] contain the digit value of the rune.
98 */
99 typedef struct {
100 __rune_t __min; /* First rune of the range */
101 __rune_t __max; /* Last rune (inclusive) of the range */
102 __rune_t __map; /* What first maps to in maps */
103 unsigned *__types; /* Array of types in range */
104 } _RuneEntry;
105
106 typedef struct {
107 int __nranges; /* Number of ranges stored */
108 _RuneEntry *__ranges; /* Pointer to the ranges */
109 } _RuneRange;
110
111 typedef struct {
112 char __magic[8]; /* Magic saying what version we are */
113 char __encoding[32]; /* ASCII name of this encoding */
114
115 unsigned int __runetype[_CACHED_RUNES];
116 __rune_t __maplower[_CACHED_RUNES];
117 __rune_t __mapupper[_CACHED_RUNES];
118
119 /*
120 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
121 * Their data is actually contiguous with this structure so as to make
122 * it easier to read/write from/to disk.
123 */
124 _RuneRange __runetype_ext;
125 _RuneRange __maplower_ext;
126 _RuneRange __mapupper_ext;
127
128 void *__variable; /* Data which depends on the encoding */
129 int __variable_len; /* how long that data is */
130 } _RuneLocale;
131
132 #define _RUNE_MAGIC_1 "RuneMagi" /* Indicates version 0 of RuneLocale */
133
134 extern _RuneLocale _DefaultRuneLocale;
135 extern _RuneLocale *_CurrentRuneLocale;
136
137 #endif /* !_RUNETYPE_H_ */