xref: /freebsd/lib/libc/locale/lmonetary.c (revision 315ee00f)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Copyright (c) 2011 The FreeBSD Foundation
8  *
9  * Portions of this software were developed by David Chisnall
10  * under sponsorship from the FreeBSD Foundation.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include <sys/cdefs.h>
35 #include <limits.h>
36 #include <stddef.h>
37 #include <stdlib.h>
38 
39 #include "ldpart.h"
40 #include "lmonetary.h"
41 
42 extern const char * __fix_locale_grouping_str(const char *);
43 
44 #define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
45 #define LCMONETARY_SIZE_MIN \
46 		(offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
47 		    sizeof(char *))
48 
49 static char	empty[] = "";
50 static char	numempty[] = { CHAR_MAX, '\0'};
51 
52 static const struct lc_monetary_T _C_monetary_locale = {
53 	empty,		/* int_curr_symbol */
54 	empty,		/* currency_symbol */
55 	empty,		/* mon_decimal_point */
56 	empty,		/* mon_thousands_sep */
57 	numempty,	/* mon_grouping */
58 	empty,		/* positive_sign */
59 	empty,		/* negative_sign */
60 	numempty,	/* int_frac_digits */
61 	numempty,	/* frac_digits */
62 	numempty,	/* p_cs_precedes */
63 	numempty,	/* p_sep_by_space */
64 	numempty,	/* n_cs_precedes */
65 	numempty,	/* n_sep_by_space */
66 	numempty,	/* p_sign_posn */
67 	numempty,	/* n_sign_posn */
68 	numempty,	/* int_p_cs_precedes */
69 	numempty,	/* int_n_cs_precedes */
70 	numempty,	/* int_p_sep_by_space */
71 	numempty,	/* int_n_sep_by_space */
72 	numempty,	/* int_p_sign_posn */
73 	numempty	/* int_n_sign_posn */
74 };
75 
76 struct xlocale_monetary __xlocale_global_monetary;
77 
78 static char
79 cnv(const char *str)
80 {
81 	int i = strtol(str, NULL, 10);
82 
83 	if (i == -1)
84 		i = CHAR_MAX;
85 	return ((char)i);
86 }
87 
88 static void
89 destruct_monetary(void *v)
90 {
91 	struct xlocale_monetary *l = v;
92 	if (l->buffer)
93 		free(l->buffer);
94 	free(l);
95 }
96 
97 static int
98 monetary_load_locale_l(struct xlocale_monetary *loc, int *using_locale,
99     int *changed, const char *name)
100 {
101 	int ret;
102 	struct lc_monetary_T *l = &loc->locale;
103 
104 	ret = __part_load_locale(name, using_locale,
105 	    &loc->buffer, "LC_MONETARY",
106 	    LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
107 	    (const char **)l);
108 	if (ret == _LDP_LOADED) {
109 		l->mon_grouping =
110 		     __fix_locale_grouping_str(l->mon_grouping);
111 
112 #define M_ASSIGN_CHAR(NAME) (((char *)l->NAME)[0] = \
113 			     cnv(l->NAME))
114 
115 		M_ASSIGN_CHAR(int_frac_digits);
116 		M_ASSIGN_CHAR(frac_digits);
117 		M_ASSIGN_CHAR(p_cs_precedes);
118 		M_ASSIGN_CHAR(p_sep_by_space);
119 		M_ASSIGN_CHAR(n_cs_precedes);
120 		M_ASSIGN_CHAR(n_sep_by_space);
121 		M_ASSIGN_CHAR(p_sign_posn);
122 		M_ASSIGN_CHAR(n_sign_posn);
123 
124 		/*
125 		 * The six additional C99 international monetary formatting
126 		 * parameters default to the national parameters when
127 		 * reading FreeBSD LC_MONETARY data files.
128 		 */
129 #define	M_ASSIGN_ICHAR(NAME)						\
130 		do {							\
131 			if (l->int_##NAME == NULL)	\
132 				l->int_##NAME =		\
133 				    l->NAME;		\
134 			else						\
135 				M_ASSIGN_CHAR(int_##NAME);		\
136 		} while (0)
137 
138 		M_ASSIGN_ICHAR(p_cs_precedes);
139 		M_ASSIGN_ICHAR(n_cs_precedes);
140 		M_ASSIGN_ICHAR(p_sep_by_space);
141 		M_ASSIGN_ICHAR(n_sep_by_space);
142 		M_ASSIGN_ICHAR(p_sign_posn);
143 		M_ASSIGN_ICHAR(n_sign_posn);
144 	}
145 	if (ret != _LDP_ERROR)
146 		atomic_store_rel_int(changed, 1);
147 	return (ret);
148 }
149 
150 int
151 __monetary_load_locale(const char *name)
152 {
153 	return (monetary_load_locale_l(&__xlocale_global_monetary,
154 	    &__xlocale_global_locale.using_monetary_locale,
155 	    &__xlocale_global_locale.monetary_locale_changed, name));
156 }
157 
158 void *
159 __monetary_load(const char *name, locale_t l)
160 {
161 	struct xlocale_monetary *new = calloc(sizeof(struct xlocale_monetary),
162 	    1);
163 	if (new == NULL)
164 		return (NULL);
165 	new->header.header.destructor = destruct_monetary;
166 	if (monetary_load_locale_l(new, &l->using_monetary_locale,
167 	    &l->monetary_locale_changed, name) == _LDP_ERROR) {
168 		xlocale_release(new);
169 		return (NULL);
170 	}
171 	return (new);
172 }
173 
174 struct lc_monetary_T *
175 __get_current_monetary_locale(locale_t loc)
176 {
177 	return (loc->using_monetary_locale ?
178 	    &((struct xlocale_monetary*)loc->components[XLC_MONETARY])->locale :
179 	    (struct lc_monetary_T *)&_C_monetary_locale);
180 }
181 
182 #ifdef LOCALE_DEBUG
183 void
184 monetdebug(void) {
185 printf(	"int_curr_symbol = %s\n"
186 	"currency_symbol = %s\n"
187 	"mon_decimal_point = %s\n"
188 	"mon_thousands_sep = %s\n"
189 	"mon_grouping = %s\n"
190 	"positive_sign = %s\n"
191 	"negative_sign = %s\n"
192 	"int_frac_digits = %d\n"
193 	"frac_digits = %d\n"
194 	"p_cs_precedes = %d\n"
195 	"p_sep_by_space = %d\n"
196 	"n_cs_precedes = %d\n"
197 	"n_sep_by_space = %d\n"
198 	"p_sign_posn = %d\n"
199 	"n_sign_posn = %d\n"
200 	"int_p_cs_precedes = %d\n"
201 	"int_p_sep_by_space = %d\n"
202 	"int_n_cs_precedes = %d\n"
203 	"int_n_sep_by_space = %d\n"
204 	"int_p_sign_posn = %d\n"
205 	"int_n_sign_posn = %d\n",
206 	_monetary_locale.int_curr_symbol,
207 	_monetary_locale.currency_symbol,
208 	_monetary_locale.mon_decimal_point,
209 	_monetary_locale.mon_thousands_sep,
210 	_monetary_locale.mon_grouping,
211 	_monetary_locale.positive_sign,
212 	_monetary_locale.negative_sign,
213 	_monetary_locale.int_frac_digits[0],
214 	_monetary_locale.frac_digits[0],
215 	_monetary_locale.p_cs_precedes[0],
216 	_monetary_locale.p_sep_by_space[0],
217 	_monetary_locale.n_cs_precedes[0],
218 	_monetary_locale.n_sep_by_space[0],
219 	_monetary_locale.p_sign_posn[0],
220 	_monetary_locale.n_sign_posn[0],
221 	_monetary_locale.int_p_cs_precedes[0],
222 	_monetary_locale.int_p_sep_by_space[0],
223 	_monetary_locale.int_n_cs_precedes[0],
224 	_monetary_locale.int_n_sep_by_space[0],
225 	_monetary_locale.int_p_sign_posn[0],
226 	_monetary_locale.int_n_sign_posn[0]
227 );
228 }
229 #endif /* LOCALE_DEBUG */
230