xref: /illumos-gate/usr/src/boot/include/runetype.h (revision 199767f8)
1*199767f8SToomas Soome /*-
2*199767f8SToomas Soome  * Copyright (c) 1993
3*199767f8SToomas Soome  *	The Regents of the University of California.  All rights reserved.
4*199767f8SToomas Soome  *
5*199767f8SToomas Soome  * This code is derived from software contributed to Berkeley by
6*199767f8SToomas Soome  * Paul Borman at Krystal Technologies.
7*199767f8SToomas Soome  *
8*199767f8SToomas Soome  * Redistribution and use in source and binary forms, with or without
9*199767f8SToomas Soome  * modification, are permitted provided that the following conditions
10*199767f8SToomas Soome  * are met:
11*199767f8SToomas Soome  * 1. Redistributions of source code must retain the above copyright
12*199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer.
13*199767f8SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
14*199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
15*199767f8SToomas Soome  *    documentation and/or other materials provided with the distribution.
16*199767f8SToomas Soome  * 3. Neither the name of the University nor the names of its contributors
17*199767f8SToomas Soome  *    may be used to endorse or promote products derived from this software
18*199767f8SToomas Soome  *    without specific prior written permission.
19*199767f8SToomas Soome  *
20*199767f8SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21*199767f8SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22*199767f8SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23*199767f8SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24*199767f8SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25*199767f8SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26*199767f8SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27*199767f8SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28*199767f8SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29*199767f8SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30*199767f8SToomas Soome  * SUCH DAMAGE.
31*199767f8SToomas Soome  *
32*199767f8SToomas Soome  *	@(#)runetype.h	8.1 (Berkeley) 6/2/93
33*199767f8SToomas Soome  * $FreeBSD$
34*199767f8SToomas Soome  */
35*199767f8SToomas Soome 
36*199767f8SToomas Soome #ifndef	_RUNETYPE_H_
37*199767f8SToomas Soome #define	_RUNETYPE_H_
38*199767f8SToomas Soome 
39*199767f8SToomas Soome #include <sys/cdefs.h>
40*199767f8SToomas Soome #include <sys/_types.h>
41*199767f8SToomas Soome 
42*199767f8SToomas Soome #define	_CACHED_RUNES	(1 <<8 )	/* Must be a power of 2 */
43*199767f8SToomas Soome #define	_CRMASK		(~(_CACHED_RUNES - 1))
44*199767f8SToomas Soome 
45*199767f8SToomas Soome /*
46*199767f8SToomas Soome  * The lower 8 bits of runetype[] contain the digit value of the rune.
47*199767f8SToomas Soome  */
48*199767f8SToomas Soome typedef struct {
49*199767f8SToomas Soome 	__rune_t	__min;		/* First rune of the range */
50*199767f8SToomas Soome 	__rune_t	__max;		/* Last rune (inclusive) of the range */
51*199767f8SToomas Soome 	__rune_t	__map;		/* What first maps to in maps */
52*199767f8SToomas Soome 	unsigned long	*__types;	/* Array of types in range */
53*199767f8SToomas Soome } _RuneEntry;
54*199767f8SToomas Soome 
55*199767f8SToomas Soome typedef struct {
56*199767f8SToomas Soome 	int		__nranges;	/* Number of ranges stored */
57*199767f8SToomas Soome 	_RuneEntry	*__ranges;	/* Pointer to the ranges */
58*199767f8SToomas Soome } _RuneRange;
59*199767f8SToomas Soome 
60*199767f8SToomas Soome typedef struct {
61*199767f8SToomas Soome 	char		__magic[8];	/* Magic saying what version we are */
62*199767f8SToomas Soome 	char		__encoding[32];	/* ASCII name of this encoding */
63*199767f8SToomas Soome 
64*199767f8SToomas Soome 	__rune_t	(*__sgetrune)(const char *, __size_t, char const **);
65*199767f8SToomas Soome 	int		(*__sputrune)(__rune_t, char *, __size_t, char **);
66*199767f8SToomas Soome 	__rune_t	__invalid_rune;
67*199767f8SToomas Soome 
68*199767f8SToomas Soome 	unsigned long	__runetype[_CACHED_RUNES];
69*199767f8SToomas Soome 	__rune_t	__maplower[_CACHED_RUNES];
70*199767f8SToomas Soome 	__rune_t	__mapupper[_CACHED_RUNES];
71*199767f8SToomas Soome 
72*199767f8SToomas Soome 	/*
73*199767f8SToomas Soome 	 * The following are to deal with Runes larger than _CACHED_RUNES - 1.
74*199767f8SToomas Soome 	 * Their data is actually contiguous with this structure so as to make
75*199767f8SToomas Soome 	 * it easier to read/write from/to disk.
76*199767f8SToomas Soome 	 */
77*199767f8SToomas Soome 	_RuneRange	__runetype_ext;
78*199767f8SToomas Soome 	_RuneRange	__maplower_ext;
79*199767f8SToomas Soome 	_RuneRange	__mapupper_ext;
80*199767f8SToomas Soome 
81*199767f8SToomas Soome 	void		*__variable;	/* Data which depends on the encoding */
82*199767f8SToomas Soome 	int		__variable_len;	/* how long that data is */
83*199767f8SToomas Soome } _RuneLocale;
84*199767f8SToomas Soome 
85*199767f8SToomas Soome #define	_RUNE_MAGIC_1	"RuneMagi"	/* Indicates version 0 of RuneLocale */
86*199767f8SToomas Soome __BEGIN_DECLS
87*199767f8SToomas Soome extern const _RuneLocale _DefaultRuneLocale;
88*199767f8SToomas Soome extern const _RuneLocale *_CurrentRuneLocale;
89*199767f8SToomas Soome #if defined(__NO_TLS) || defined(__RUNETYPE_INTERNAL)
90*199767f8SToomas Soome extern const _RuneLocale *__getCurrentRuneLocale(void);
91*199767f8SToomas Soome #else
92*199767f8SToomas Soome extern _Thread_local const _RuneLocale *_ThreadRuneLocale;
__getCurrentRuneLocale(void)93*199767f8SToomas Soome static __inline const _RuneLocale *__getCurrentRuneLocale(void)
94*199767f8SToomas Soome {
95*199767f8SToomas Soome 
96*199767f8SToomas Soome 	if (_ThreadRuneLocale)
97*199767f8SToomas Soome 		return _ThreadRuneLocale;
98*199767f8SToomas Soome 	if (_CurrentRuneLocale)
99*199767f8SToomas Soome 		return _CurrentRuneLocale;
100*199767f8SToomas Soome 	return &_DefaultRuneLocale;
101*199767f8SToomas Soome }
102*199767f8SToomas Soome #endif /* __NO_TLS || __RUNETYPE_INTERNAL */
103*199767f8SToomas Soome #define _CurrentRuneLocale (__getCurrentRuneLocale())
104*199767f8SToomas Soome __END_DECLS
105*199767f8SToomas Soome 
106*199767f8SToomas Soome #endif	/* !_RUNETYPE_H_ */
107