1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright (c) 1996, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * collate.h
31 *
32 *   MKS extension to ANSI/POSIX to retrieve additional locale information.
33 *   Specifically collation information.
34 *
35 * Copyright 1989, 1993 by Mortice Kern Systems Inc.  All rights reserved.
36 *
37 * $Header: /rd/h/rcs/collate.h 1.16 1993/12/02 21:54:23 mark Exp $
38 */
39#ifndef	__COLLATE_H__
40#define	__COLLATE_H__
41
42#include <mks.h>
43#include <limits.h>
44
45/*
46 * include prototypes of the MKS i18n routines
47 */
48#include <m_collat.h>
49
50/*
51 * constants and structure definitions used in MKS internal implementation
52 *
53 *  -- used by strxfrm(), localedef.
54 */
55
56/* string length limitations */
57#define _M_COLLATE_MAX	32	/* max length of a collation string */
58#define _M_COTOM_MAX	4	/* max length of one to many map */
59
60/* forward, backward... -- or'ed into cmode */
61#define _M_FORWARD_MODE	 1 	/* compare based on string forward */
62#define _M_BACKWARD_MODE 2 	/* compare based on string backward */
63#define _M_POSITION_MODE 4 	/* consider relative position of non-IGNOREd */
64
65/* flags used in cord.cflag */
66#define _M_NOCOLLSTR	0
67#define _M_MANYTOONEF	1	/* Potential many-to-one mapping in forward */
68#define _M_MANYTOONEB	2	/* Potential many-to-one mapping in backward */
69
70/* typedef's */
71typedef short	_m_weight_t;
72
73/* collate database file header */
74struct _m_cinfo {
75	int		cnstr;			/* number of collate strings */
76	int		cnotom;			/* number of one to many maps */
77	int		cnweight;		/* Number of weights in cmode */
78	unsigned char	cmode[COLL_WEIGHTS_MAX];/* order mode: forward... */
79	struct _m_cstr	*cstr;			/* Pointer to collating strs */
80	struct _m_cord	*cord;			/* weight tables */
81	struct _m_cotom	*cotom;			/* one-to-many mapping tables */
82	m_collel_t	*cindex,		/* index to range table map */
83			*range;			/* Range table */
84	m_collel_t	*equivo,		/* equiv class offsets */
85			*cequiv;		/* equiv class table */
86};
87
88/* Per character and per collating-sequence structure */
89struct _m_cord {				/* order */
90	unsigned char	cflag;	/* =1, beginning of a collation string */
91	_m_weight_t	cweight[COLL_WEIGHTS_MAX]; /* relative weight */
92};
93
94/*l
95 * The _m_cstr structure is per many-to-one mapping (collating element from...)
96 * Pointed at by _m_cinfo.cstr, indexed by (m_collel_t - M_CSETSIZE).
97 * Stored both forwards and backwards to make it easy for strxfrm parsing
98 * for order_start backward.
99 */
100struct _m_cstr {				/* collating-element */
101	char		csf[_M_COLLATE_MAX];	/* collating string forward */
102	char		csb[_M_COLLATE_MAX];	/* collating string backward */
103};
104
105/*l
106 * Per one-to-many mapping entry.  A cweight entry in the _cord structure
107 * which is negative, will index into this table.
108 * Pointed at by _m_cinfo.cotom.
109 */
110struct _m_cotom {				/* one to many map */
111	_m_weight_t	weight[_M_COTOM_MAX];
112};
113
114#ifdef I18N
115
116extern struct _m_cinfo	_m_cinfo;
117
118#endif	/* I18N */
119
120#endif	/* __COLLATE_H_ */
121