xref: /freebsd/lib/libc/locale/lmonetary.c (revision 4f29da19bd44f0e99f021510460a81bf754c21d2)
1 /*
2  * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <limits.h>
31 #include <stddef.h>
32 #include <stdlib.h>
33 
34 #include "ldpart.h"
35 #include "lmonetary.h"
36 
37 extern int __mlocale_changed;
38 extern const char * __fix_locale_grouping_str(const char *);
39 
40 #define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
41 #define LCMONETARY_SIZE_MIN \
42 		(offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
43 		    sizeof(char *))
44 
45 static char	empty[] = "";
46 static char	numempty[] = { CHAR_MAX, '\0'};
47 
48 static const struct lc_monetary_T _C_monetary_locale = {
49 	empty,		/* int_curr_symbol */
50 	empty,		/* currency_symbol */
51 	empty,		/* mon_decimal_point */
52 	empty,		/* mon_thousands_sep */
53 	numempty,	/* mon_grouping */
54 	empty,		/* positive_sign */
55 	empty,		/* negative_sign */
56 	numempty,	/* int_frac_digits */
57 	numempty,	/* frac_digits */
58 	numempty,	/* p_cs_precedes */
59 	numempty,	/* p_sep_by_space */
60 	numempty,	/* n_cs_precedes */
61 	numempty,	/* n_sep_by_space */
62 	numempty,	/* p_sign_posn */
63 	numempty,	/* n_sign_posn */
64 	numempty,	/* int_p_cs_precedes */
65 	numempty,	/* int_n_cs_precedes */
66 	numempty,	/* int_p_sep_by_space */
67 	numempty,	/* int_n_sep_by_space */
68 	numempty,	/* int_p_sign_posn */
69 	numempty	/* int_n_sign_posn */
70 };
71 
72 static struct lc_monetary_T _monetary_locale;
73 static int	_monetary_using_locale;
74 static char	*_monetary_locale_buf;
75 
76 static char
77 cnv(const char *str)
78 {
79 	int i = strtol(str, NULL, 10);
80 
81 	if (i == -1)
82 		i = CHAR_MAX;
83 	return ((char)i);
84 }
85 
86 int
87 __monetary_load_locale(const char *name)
88 {
89 	int ret;
90 
91 	ret = __part_load_locale(name, &_monetary_using_locale,
92 		&_monetary_locale_buf, "LC_MONETARY",
93 		LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
94 		(const char **)&_monetary_locale);
95 	if (ret != _LDP_ERROR)
96 		__mlocale_changed = 1;
97 	if (ret == _LDP_LOADED) {
98 		_monetary_locale.mon_grouping =
99 		     __fix_locale_grouping_str(_monetary_locale.mon_grouping);
100 
101 #define M_ASSIGN_CHAR(NAME) (((char *)_monetary_locale.NAME)[0] = \
102 			     cnv(_monetary_locale.NAME))
103 
104 		M_ASSIGN_CHAR(int_frac_digits);
105 		M_ASSIGN_CHAR(frac_digits);
106 		M_ASSIGN_CHAR(p_cs_precedes);
107 		M_ASSIGN_CHAR(p_sep_by_space);
108 		M_ASSIGN_CHAR(n_cs_precedes);
109 		M_ASSIGN_CHAR(n_sep_by_space);
110 		M_ASSIGN_CHAR(p_sign_posn);
111 		M_ASSIGN_CHAR(n_sign_posn);
112 
113 		/*
114 		 * The six additional C99 international monetary formatting
115 		 * parameters default to the national parameters when
116 		 * reading FreeBSD LC_MONETARY data files.
117 		 */
118 #define	M_ASSIGN_ICHAR(NAME)						\
119 		do {							\
120 			if (_monetary_locale.int_##NAME == NULL)	\
121 				_monetary_locale.int_##NAME =		\
122 				    _monetary_locale.NAME;		\
123 			else						\
124 				M_ASSIGN_CHAR(int_##NAME);		\
125 		} while (0)
126 
127 		M_ASSIGN_ICHAR(p_cs_precedes);
128 		M_ASSIGN_ICHAR(n_cs_precedes);
129 		M_ASSIGN_ICHAR(p_sep_by_space);
130 		M_ASSIGN_ICHAR(n_sep_by_space);
131 		M_ASSIGN_ICHAR(p_sign_posn);
132 		M_ASSIGN_ICHAR(n_sign_posn);
133 	}
134 	return (ret);
135 }
136 
137 struct lc_monetary_T *
138 __get_current_monetary_locale(void)
139 {
140 	return (_monetary_using_locale
141 		? &_monetary_locale
142 		: (struct lc_monetary_T *)&_C_monetary_locale);
143 }
144 
145 #ifdef LOCALE_DEBUG
146 void
147 monetdebug() {
148 printf(	"int_curr_symbol = %s\n"
149 	"currency_symbol = %s\n"
150 	"mon_decimal_point = %s\n"
151 	"mon_thousands_sep = %s\n"
152 	"mon_grouping = %s\n"
153 	"positive_sign = %s\n"
154 	"negative_sign = %s\n"
155 	"int_frac_digits = %d\n"
156 	"frac_digits = %d\n"
157 	"p_cs_precedes = %d\n"
158 	"p_sep_by_space = %d\n"
159 	"n_cs_precedes = %d\n"
160 	"n_sep_by_space = %d\n"
161 	"p_sign_posn = %d\n"
162 	"n_sign_posn = %d\n",
163 	"int_p_cs_precedes = %d\n"
164 	"int_p_sep_by_space = %d\n"
165 	"int_n_cs_precedes = %d\n"
166 	"int_n_sep_by_space = %d\n"
167 	"int_p_sign_posn = %d\n"
168 	"int_n_sign_posn = %d\n",
169 	_monetary_locale.int_curr_symbol,
170 	_monetary_locale.currency_symbol,
171 	_monetary_locale.mon_decimal_point,
172 	_monetary_locale.mon_thousands_sep,
173 	_monetary_locale.mon_grouping,
174 	_monetary_locale.positive_sign,
175 	_monetary_locale.negative_sign,
176 	_monetary_locale.int_frac_digits[0],
177 	_monetary_locale.frac_digits[0],
178 	_monetary_locale.p_cs_precedes[0],
179 	_monetary_locale.p_sep_by_space[0],
180 	_monetary_locale.n_cs_precedes[0],
181 	_monetary_locale.n_sep_by_space[0],
182 	_monetary_locale.p_sign_posn[0],
183 	_monetary_locale.n_sign_posn[0],
184 	_monetary_locale.int_p_cs_precedes[0],
185 	_monetary_locale.int_p_sep_by_space[0],
186 	_monetary_locale.int_n_cs_precedes[0],
187 	_monetary_locale.int_n_sep_by_space[0],
188 	_monetary_locale.int_p_sign_posn[0],
189 	_monetary_locale.int_n_sign_posn[0]
190 );
191 }
192 #endif /* LOCALE_DEBUG */
193