runetype.h revision 130961 
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 * $FreeBSD: head/include/runetype.h 130961 2004-06-23 07:01:44Z tjr $
38 */
39
40#ifndef	_RUNETYPE_H_
41#define	_RUNETYPE_H_
42
43#include <sys/cdefs.h>
44#include <sys/_types.h>
45
46#define	_CACHED_RUNES	(1 <<8 )	/* Must be a power of 2 */
47#define	_CRMASK		(~(_CACHED_RUNES - 1))
48
49/*
50 * The lower 8 bits of runetype[] contain the digit value of the rune.
51 */
52typedef struct {
53	__rune_t	__min;		/* First rune of the range */
54	__rune_t	__max;		/* Last rune (inclusive) of the range */
55	__rune_t	__map;		/* What first maps to in maps */
56	unsigned long	*__types;	/* Array of types in range */
57} _RuneEntry;
58
59typedef struct {
60	int		__nranges;	/* Number of ranges stored */
61	_RuneEntry	*__ranges;	/* Pointer to the ranges */
62} _RuneRange;
63
64typedef struct {
65	char		__magic[8];	/* Magic saying what version we are */
66	char		__encoding[32];	/* ASCII name of this encoding */
67
68	__rune_t	(*__sgetrune)(const char *, __size_t, char const **);
69	int		(*__sputrune)(__rune_t, char *, __size_t, char **);
70	__rune_t	__invalid_rune;
71
72	unsigned long	__runetype[_CACHED_RUNES];
73	__rune_t	__maplower[_CACHED_RUNES];
74	__rune_t	__mapupper[_CACHED_RUNES];
75
76	/*
77	 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
78	 * Their data is actually contiguous with this structure so as to make
79	 * it easier to read/write from/to disk.
80	 */
81	_RuneRange	__runetype_ext;
82	_RuneRange	__maplower_ext;
83	_RuneRange	__mapupper_ext;
84
85	void		*__variable;	/* Data which depends on the encoding */
86	int		__variable_len;	/* how long that data is */
87} _RuneLocale;
88
89#define	_RUNE_MAGIC_1	"RuneMagi"	/* Indicates version 0 of RuneLocale */
90
91extern _RuneLocale _DefaultRuneLocale;
92extern _RuneLocale *_CurrentRuneLocale;
93
94#endif	/* !_RUNETYPE_H_ */
95