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: src/lib/libc/locale/lmonetary.c,v 1.19 2003/06/26 10:46:16 phantom Exp $");
29
30#include "xlocale_private.h"
31
32#include <limits.h>
33#include <stddef.h>
34#include <stdlib.h>
35#include <string.h>
36
37#include "ldpart.h"
38#include "lmonetary.h"
39
40extern const char * __fix_locale_grouping_str(const char *);
41
42#define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
43#define LCMONETARY_SIZE_MIN \
44		(offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
45		    sizeof(char *))
46
47static char	empty[] = "";
48static char	numempty[] = { CHAR_MAX, '\0'};
49
50static const struct lc_monetary_T _C_monetary_locale = {
51	empty,		/* int_curr_symbol */
52	empty,		/* currency_symbol */
53	empty,		/* mon_decimal_point */
54	empty,		/* mon_thousands_sep */
55	empty,		/* mon_grouping [C99 7.11.2.1]*/
56	empty,		/* positive_sign */
57	empty,		/* negative_sign */
58	numempty,	/* int_frac_digits */
59	numempty,	/* frac_digits */
60	numempty,	/* p_cs_precedes */
61	numempty,	/* p_sep_by_space */
62	numempty,	/* n_cs_precedes */
63	numempty,	/* n_sep_by_space */
64	numempty,	/* p_sign_posn */
65	numempty,	/* n_sign_posn */
66	numempty,	/* int_p_cs_precedes */
67	numempty,	/* int_n_cs_precedes */
68	numempty,	/* int_p_sep_by_space */
69	numempty,	/* int_n_sep_by_space */
70	numempty,	/* int_p_sign_posn */
71	numempty	/* int_n_sign_posn */
72};
73
74static char
75cnv(const char *str)
76{
77	int i = strtol(str, NULL, 10);
78
79	if (i == -1)
80		i = CHAR_MAX;
81	return ((char)i);
82}
83
84__private_extern__ int
85__monetary_load_locale(const char *name, locale_t loc)
86{
87	int ret;
88	struct __xlocale_st_monetary *xp;
89	static struct __xlocale_st_monetary *cache = NULL;
90
91	/* 'name' must be already checked. */
92	if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0) {
93		if (!loc->_monetary_using_locale)
94			return (_LDP_CACHE);
95		loc->_monetary_using_locale = 0;
96		XL_RELEASE(loc->__lc_monetary);
97		loc->__lc_monetary = NULL;
98		loc->__mlocale_changed = 1;
99		return (_LDP_CACHE);
100	}
101
102	if (loc->_monetary_using_locale && strcmp(name, loc->__lc_monetary->_monetary_locale_buf) == 0)
103		return (_LDP_CACHE);
104	/*
105	 * If the locale name is the same as our cache, use the cache.
106	 */
107	if (cache && cache->_monetary_locale_buf && strcmp(name, cache->_monetary_locale_buf) == 0) {
108		loc->_monetary_using_locale = 1;
109		XL_RELEASE(loc->__lc_monetary);
110		loc->__lc_monetary = cache;
111		XL_RETAIN(loc->__lc_monetary);
112		loc->__mlocale_changed = 1;
113		return (_LDP_CACHE);
114	}
115	if ((xp = (struct __xlocale_st_monetary *)malloc(sizeof(*xp))) == NULL)
116		return _LDP_ERROR;
117	xp->__refcount = 1;
118	xp->__free_extra = (__free_extra_t)__ldpart_free_extra;
119	xp->_monetary_locale_buf = NULL;
120
121	ret = __part_load_locale(name, &loc->_monetary_using_locale,
122		&xp->_monetary_locale_buf, "LC_MONETARY",
123		LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
124		(const char **)&xp->_monetary_locale);
125	if (ret != _LDP_ERROR)
126		loc->__mlocale_changed = 1;
127	else
128		free(xp);
129	if (ret == _LDP_LOADED) {
130		xp->_monetary_locale.mon_grouping =
131		     __fix_locale_grouping_str(xp->_monetary_locale.mon_grouping);
132
133#define M_ASSIGN_CHAR(NAME) (((char *)xp->_monetary_locale.NAME)[0] = \
134			     cnv(xp->_monetary_locale.NAME))
135
136		M_ASSIGN_CHAR(int_frac_digits);
137		M_ASSIGN_CHAR(frac_digits);
138		M_ASSIGN_CHAR(p_cs_precedes);
139		M_ASSIGN_CHAR(p_sep_by_space);
140		M_ASSIGN_CHAR(n_cs_precedes);
141		M_ASSIGN_CHAR(n_sep_by_space);
142		M_ASSIGN_CHAR(p_sign_posn);
143		M_ASSIGN_CHAR(n_sign_posn);
144
145		/*
146		 * The six additional C99 international monetary formatting
147		 * parameters default to the national parameters when
148		 * reading FreeBSD LC_MONETARY data files.
149		 */
150#define	M_ASSIGN_ICHAR(NAME)						\
151		do {							\
152			if (xp->_monetary_locale.int_##NAME == NULL)	\
153				xp->_monetary_locale.int_##NAME =	\
154				    xp->_monetary_locale.NAME;		\
155			else						\
156				M_ASSIGN_CHAR(int_##NAME);		\
157		} while (0)
158
159		M_ASSIGN_ICHAR(p_cs_precedes);
160		M_ASSIGN_ICHAR(n_cs_precedes);
161		M_ASSIGN_ICHAR(p_sep_by_space);
162		M_ASSIGN_ICHAR(n_sep_by_space);
163		M_ASSIGN_ICHAR(p_sign_posn);
164		M_ASSIGN_ICHAR(n_sign_posn);
165		XL_RELEASE(loc->__lc_monetary);
166		loc->__lc_monetary = xp;
167		XL_RELEASE(cache);
168		cache = xp;
169		XL_RETAIN(cache);
170	}
171	return (ret);
172}
173
174__private_extern__ struct lc_monetary_T *
175__get_current_monetary_locale(locale_t loc)
176{
177	return (loc->_monetary_using_locale
178		? &loc->__lc_monetary->_monetary_locale
179		: (struct lc_monetary_T *)&_C_monetary_locale);
180}
181
182#ifdef LOCALE_DEBUG
183void
184monetdebug() {
185locale_t loc = __current_locale();
186printf(	"int_curr_symbol = %s\n"
187	"currency_symbol = %s\n"
188	"mon_decimal_point = %s\n"
189	"mon_thousands_sep = %s\n"
190	"mon_grouping = %s\n"
191	"positive_sign = %s\n"
192	"negative_sign = %s\n"
193	"int_frac_digits = %d\n"
194	"frac_digits = %d\n"
195	"p_cs_precedes = %d\n"
196	"p_sep_by_space = %d\n"
197	"n_cs_precedes = %d\n"
198	"n_sep_by_space = %d\n"
199	"p_sign_posn = %d\n"
200	"n_sign_posn = %d\n",
201	"int_p_cs_precedes = %d\n"
202	"int_p_sep_by_space = %d\n"
203	"int_n_cs_precedes = %d\n"
204	"int_n_sep_by_space = %d\n"
205	"int_p_sign_posn = %d\n"
206	"int_n_sign_posn = %d\n",
207	loc->__lc_monetary->_monetary_locale.int_curr_symbol,
208	loc->__lc_monetary->_monetary_locale.currency_symbol,
209	loc->__lc_monetary->_monetary_locale.mon_decimal_point,
210	loc->__lc_monetary->_monetary_locale.mon_thousands_sep,
211	loc->__lc_monetary->_monetary_locale.mon_grouping,
212	loc->__lc_monetary->_monetary_locale.positive_sign,
213	loc->__lc_monetary->_monetary_locale.negative_sign,
214	loc->__lc_monetary->_monetary_locale.int_frac_digits[0],
215	loc->__lc_monetary->_monetary_locale.frac_digits[0],
216	loc->__lc_monetary->_monetary_locale.p_cs_precedes[0],
217	loc->__lc_monetary->_monetary_locale.p_sep_by_space[0],
218	loc->__lc_monetary->_monetary_locale.n_cs_precedes[0],
219	loc->__lc_monetary->_monetary_locale.n_sep_by_space[0],
220	loc->__lc_monetary->_monetary_locale.p_sign_posn[0],
221	loc->__lc_monetary->_monetary_locale.n_sign_posn[0],
222	loc->__lc_monetary->_monetary_locale.int_p_cs_precedes[0],
223	loc->__lc_monetary->_monetary_locale.int_p_sep_by_space[0],
224	loc->__lc_monetary->_monetary_locale.int_n_cs_precedes[0],
225	loc->__lc_monetary->_monetary_locale.int_n_sep_by_space[0],
226	loc->__lc_monetary->_monetary_locale.int_p_sign_posn[0],
227	loc->__lc_monetary->_monetary_locale.int_n_sign_posn[0]
228);
229}
230#endif /* LOCALE_DEBUG */
231