1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 5 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 6 * at Electronni Visti IA, Kiev, Ukraine. 7 * All rights reserved. 8 * 9 * Copyright (c) 2011 The FreeBSD Foundation 10 * 11 * Portions of this software were developed by David Chisnall 12 * under sponsorship from the FreeBSD Foundation. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef _COLLATE_H_ 37 #define _COLLATE_H_ 38 39 #include <sys/cdefs.h> 40 #include <sys/types.h> 41 #include <limits.h> 42 #include "xlocale_private.h" 43 44 /* 45 * Work around buildworld bootstrapping from older systems whose limits.h 46 * sets COLL_WEIGHTS_MAX to 0. 47 */ 48 #if COLL_WEIGHTS_MAX == 0 49 #undef COLL_WEIGHTS_MAX 50 #define COLL_WEIGHTS_MAX 10 51 #endif 52 53 #define COLLATE_STR_LEN 24 /* should be 64-bit multiple */ 54 55 #define COLLATE_FMT_VERSION_LEN 12 56 #define COLLATE_FMT_VERSION "BSD 1.0\n" 57 58 #define COLLATE_MAX_PRIORITY (0x7fffffff) /* max signed value */ 59 #define COLLATE_SUBST_PRIORITY (0x40000000) /* bit indicates subst table */ 60 61 #define DIRECTIVE_UNDEF 0x00 62 #define DIRECTIVE_FORWARD 0x01 63 #define DIRECTIVE_BACKWARD 0x02 64 #define DIRECTIVE_POSITION 0x04 65 #define DIRECTIVE_UNDEFINED 0x08 /* special last weight for UNDEFINED */ 66 67 #define DIRECTIVE_DIRECTION_MASK (DIRECTIVE_FORWARD | DIRECTIVE_BACKWARD) 68 69 /* 70 * The collate file format is as follows: 71 * 72 * char fmt_version[COLLATE_FMT_VERSION_LEN]; // must be COLLATE_FMT_VERSION 73 * char def_version[XLOCALE_DEF_VERSION_LEN]; // NUL-terminated, may be empty 74 * collate_info_t info; // see below, includes padding 75 * collate_char_pri_t char_data[256]; // 8 bit char values 76 * collate_subst_t subst[*]; // 0 or more substitutions 77 * collate_chain_pri_t chains[*]; // 0 or more chains 78 * collate_large_pri_t large[*]; // extended char priorities 79 * 80 * Note that all structures must be 32-bit aligned, as each structure 81 * contains 32-bit member fields. The entire file is mmap'd, so its 82 * critical that alignment be observed. It is not generally safe to 83 * use any 64-bit values in the structures. 84 */ 85 86 typedef struct collate_info { 87 uint8_t directive_count; 88 uint8_t directive[COLL_WEIGHTS_MAX]; 89 int32_t pri_count[COLL_WEIGHTS_MAX]; 90 int32_t flags; 91 int32_t chain_count; 92 int32_t large_count; 93 int32_t subst_count[COLL_WEIGHTS_MAX]; 94 int32_t undef_pri[COLL_WEIGHTS_MAX]; 95 } collate_info_t; 96 97 typedef struct collate_char { 98 int32_t pri[COLL_WEIGHTS_MAX]; 99 } collate_char_t; 100 101 typedef struct collate_chain { 102 wchar_t str[COLLATE_STR_LEN]; 103 int32_t pri[COLL_WEIGHTS_MAX]; 104 } collate_chain_t; 105 106 typedef struct collate_large { 107 int32_t val; 108 collate_char_t pri; 109 } collate_large_t; 110 111 typedef struct collate_subst { 112 int32_t key; 113 int32_t pri[COLLATE_STR_LEN]; 114 } collate_subst_t; 115 116 struct xlocale_collate { 117 struct xlocale_component header; 118 int __collate_load_error; 119 char * map; 120 size_t maplen; 121 122 collate_info_t *info; 123 collate_char_t *char_pri_table; 124 collate_large_t *large_pri_table; 125 collate_chain_t *chain_pri_table; 126 collate_subst_t *subst_table[COLL_WEIGHTS_MAX]; 127 }; 128 129 __BEGIN_DECLS 130 int __collate_load_tables(const char *); 131 int __collate_equiv_value(locale_t, const wchar_t *, size_t); 132 void _collate_lookup(struct xlocale_collate *,const wchar_t *, int *, int *, 133 int, const int **); 134 int __collate_range_cmp(char, char); 135 int __wcollate_range_cmp(wchar_t, wchar_t); 136 size_t _collate_wxfrm(struct xlocale_collate *, const wchar_t *, wchar_t *, 137 size_t); 138 size_t _collate_sxfrm(struct xlocale_collate *, const wchar_t *, char *, 139 size_t); 140 __END_DECLS 141 142 #endif /* !_COLLATE_H_ */ 143