runetype.h revision 99640 
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 99640 2002-07-09 05:13:30Z obrien $
38 */
39
40#ifndef	_RUNETYPE_H_
41#define	_RUNETYPE_H_
42
43#include <sys/cdefs.h>
44#include <machine/ansi.h>
45
46#ifdef	_BSD_RUNE_T_
47typedef	_BSD_RUNE_T_	rune_t;
48#undef	_BSD_RUNE_T_
49#endif
50
51#ifdef	_BSD_SIZE_T_
52typedef	_BSD_SIZE_T_	size_t;
53#undef	_BSD_SIZE_T_
54#endif
55
56#ifndef	__cplusplus
57#ifdef	_BSD_WCHAR_T_
58typedef	_BSD_WCHAR_T_	wchar_t;
59#undef	_BSD_WCHAR_T_
60#endif
61#endif
62
63#define	_CACHED_RUNES	(1 <<8 )	/* Must be a power of 2 */
64#define	_CRMASK		(~(_CACHED_RUNES - 1))
65
66/*
67 * The lower 8 bits of runetype[] contain the digit value of the rune.
68 */
69typedef struct {
70	rune_t		min;		/* First rune of the range */
71	rune_t		max;		/* Last rune (inclusive) of the range */
72	rune_t		map;		/* What first maps to in maps */
73	unsigned long	*types;		/* Array of types in range */
74} _RuneEntry;
75
76typedef struct {
77	int		nranges;	/* Number of ranges stored */
78	_RuneEntry	*ranges;	/* Pointer to the ranges */
79} _RuneRange;
80
81typedef struct {
82	char		magic[8];	/* Magic saying what version we are */
83	char		encoding[32];	/* ASCII name of this encoding */
84
85	rune_t		(*sgetrune)(const char *, size_t, char const **);
86	int		(*sputrune)(rune_t, char *, size_t, char **);
87	rune_t		invalid_rune;
88
89	unsigned long	runetype[_CACHED_RUNES];
90	rune_t		maplower[_CACHED_RUNES];
91	rune_t		mapupper[_CACHED_RUNES];
92
93	/*
94	 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
95	 * Their data is actually contiguous with this structure so as to make
96	 * it easier to read/write from/to disk.
97	 */
98	_RuneRange	runetype_ext;
99	_RuneRange	maplower_ext;
100	_RuneRange	mapupper_ext;
101
102	void		*variable;	/* Data which depends on the encoding */
103	int		variable_len;	/* how long that data is */
104} _RuneLocale;
105
106#define	_RUNE_MAGIC_1	"RuneMagi"	/* Indicates version 0 of RuneLocale */
107
108extern _RuneLocale _DefaultRuneLocale;
109extern _RuneLocale *_CurrentRuneLocale;
110
111#endif	/* !_RUNETYPE_H_ */
112