1 /*
2 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Copyright (c) 2011 The FreeBSD Foundation
6 * All rights reserved.
7 * Portions of this software were developed by David Chisnall
8 * under sponsorship from the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: head/lib/libc/locale/lnumeric.c 227753 2011-11-20 14:45:42Z theraven $
32 */
33
34
35 #include <limits.h>
36
37 #include "ldpart.h"
38 #include "lnumeric.h"
39
40 extern const char *__fix_locale_grouping_str(const char *);
41
42 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
43
44 static char numempty[] = { CHAR_MAX, '\0' };
45
46 static const struct lc_numeric_T _C_numeric_locale = {
47 ".", /* decimal_point */
48 "", /* thousands_sep */
49 numempty /* grouping */
50 };
51
52 static void
destruct_numeric(void * v)53 destruct_numeric(void *v)
54 {
55 struct xlocale_numeric *l = v;
56 if (l->buffer)
57 free(l->buffer);
58 free(l);
59 }
60
61 struct xlocale_numeric __xlocale_global_numeric;
62
63 static int
numeric_load_locale(struct xlocale_numeric * loc,int * using_locale,int * changed,const char * name)64 numeric_load_locale(struct xlocale_numeric *loc, int *using_locale, int *changed,
65 const char *name)
66 {
67 int ret;
68 struct lc_numeric_T *l = &loc->locale;
69
70 ret = __part_load_locale(name, using_locale,
71 &loc->buffer, "LC_NUMERIC",
72 LCNUMERIC_SIZE, LCNUMERIC_SIZE,
73 (const char**)l);
74 if (ret != _LDP_ERROR)
75 *changed= 1;
76 if (ret == _LDP_LOADED) {
77 /* Can't be empty according to C99 */
78 if (*l->decimal_point == '\0')
79 l->decimal_point =
80 _C_numeric_locale.decimal_point;
81 l->grouping =
82 __fix_locale_grouping_str(l->grouping);
83 }
84 return (ret);
85 }
86
87 int
__numeric_load_locale(const char * name)88 __numeric_load_locale(const char *name)
89 {
90 return numeric_load_locale(&__xlocale_global_numeric,
91 &__xlocale_global_locale.using_numeric_locale,
92 &__xlocale_global_locale.numeric_locale_changed, name);
93 }
94 void *
__numeric_load(const char * name,locale_t l)95 __numeric_load(const char *name, locale_t l)
96 {
97 struct xlocale_numeric *new = calloc(sizeof(struct xlocale_numeric), 1);
98 new->header.header.destructor = destruct_numeric;
99 if (numeric_load_locale(new, &l->using_numeric_locale,
100 &l->numeric_locale_changed, name) == _LDP_ERROR)
101 {
102 xlocale_release(new);
103 return NULL;
104 }
105 return new;
106 }
107
108 struct lc_numeric_T *
__get_current_numeric_locale(locale_t loc)109 __get_current_numeric_locale(locale_t loc)
110 {
111 return (loc->using_numeric_locale
112 ? &((struct xlocale_numeric *)loc->components[XLC_NUMERIC])->locale
113 : (struct lc_numeric_T *)&_C_numeric_locale);
114 }
115
116 #ifdef LOCALE_DEBUG
117 void
numericdebug(void)118 numericdebug(void) {
119 printf( "decimal_point = %s\n"
120 "thousands_sep = %s\n"
121 "grouping = %s\n",
122 _numeric_locale.decimal_point,
123 _numeric_locale.thousands_sep,
124 _numeric_locale.grouping
125 );
126 }
127 #endif /* LOCALE_DEBUG */
128