1 /*
2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Paul Borman at Krystal Technologies.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34 /*
35 * Because we borrowed the __rune_t defintions from _types.h, we need
36 * this copyright notice as well:
37 *
38 * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
39 * All rights reserved.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 */
62
63 #ifndef _RUNETYPE_H_
64 #define _RUNETYPE_H_
65
66 #define _CACHED_RUNES (1 << 8) /* Must be a power of 2 */
67 #define _CRMASK (~(_CACHED_RUNES - 1))
68
69 /*
70 * rune_t is declared to be an ``int'' instead of the more natural
71 * ``unsigned long'' or ``long''. Two things are happening here. It is not
72 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also,
73 * it looks like 10646 will be a 31 bit standard. This means that if your
74 * ints cannot hold 32 bits, you will be in trouble. The reason an int was
75 * chosen over a long is that the is*() and to*() routines take ints (says
76 * ANSI C), but they use __ct_rune_t instead of int.
77 *
78 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
79 * be instantiated outside of lib/libc/locale. Use wchar_t. wchar_t and
80 * rune_t must be the same type. Also, wint_t must be no narrower than
81 * wchar_t, and should be able to hold all members of the largest
82 * character set plus one extra value (WEOF), and must be at least 16 bits.
83 *
84 * For compatibility with Solaris, we want to use long in ILP32, and int in
85 * LP64. This is due to historical Solaris legacy. (See <wchar.h> for
86 * the definition.)
87 */
88
89 #if defined(_LP64)
90 typedef int __ct_rune_t; /* arg type for ctype funcs */
91 #else
92 typedef int __ct_rune_t;
93 #endif
94
95 typedef int __rune_t; /* rune_t (see above) */
96
97 /*
98 * The lower 8 bits of runetype[] contain the digit value of the rune.
99 */
100 typedef struct {
101 __rune_t __min; /* First rune of the range */
102 __rune_t __max; /* Last rune (inclusive) of the range */
103 __rune_t __map; /* What first maps to in maps */
104 unsigned *__types; /* Array of types in range */
105 } _RuneEntry;
106
107 typedef struct {
108 int __nranges; /* Number of ranges stored */
109 _RuneEntry *__ranges; /* Pointer to the ranges */
110 } _RuneRange;
111
112 typedef struct {
113 char __magic[8]; /* Magic saying what version we are */
114 char __encoding[32]; /* ASCII name of encoding */
115
116 unsigned int __runetype[_CACHED_RUNES];
117 __rune_t __maplower[_CACHED_RUNES];
118 __rune_t __mapupper[_CACHED_RUNES];
119
120 /*
121 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
122 * Their data is actually contiguous with this structure so as to make
123 * it easier to read/write from/to disk.
124 */
125 _RuneRange __runetype_ext;
126 _RuneRange __maplower_ext;
127 _RuneRange __mapupper_ext;
128
129 void *__variable; /* Data which depends on the encoding */
130 int __variable_len; /* how long that data is */
131 } _RuneLocale;
132
133 #define _RUNE_MAGIC_1 "RuneMagi" /* Indicates version 0 of RuneLocale */
134
135 extern _RuneLocale _DefaultRuneLocale;
136
137 unsigned int __runetype(const _RuneLocale *, int);
138
139 #endif /* !_RUNETYPE_H_ */