xref: /freebsd/lib/libc/locale/localeconv.c (revision 193d9e768ba63fcfb187cfd17f461f7d41345048)
1 /*
2  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
3  * Copyright (c) 1991, 1993
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * Copyright (c) 2011 The FreeBSD Foundation
7  * All rights reserved.
8  * Portions of this software were developed by David Chisnall
9  * under sponsorship from the FreeBSD Foundation.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)localeconv.c	8.1 (Berkeley) 6/4/93";
38 #endif /* LIBC_SCCS and not lint */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41 
42 #include <locale.h>
43 
44 #include "lmonetary.h"
45 #include "lnumeric.h"
46 
47 /*
48  * The localeconv() function constructs a struct lconv from the current
49  * monetary and numeric locales.
50  *
51  * Because localeconv() may be called many times (especially by library
52  * routines like printf() & strtod()), the approprate members of the
53  * lconv structure are computed only when the monetary or numeric
54  * locale has been changed.
55  */
56 
57 /*
58  * Return the current locale conversion.
59  */
60 struct lconv *
61 localeconv_l(locale_t loc)
62 {
63 	FIX_LOCALE(loc);
64     struct lconv *ret = &loc->lconv;
65 
66     if (loc->monetary_locale_changed) {
67 	/* LC_MONETARY part */
68         struct lc_monetary_T * mptr;
69 
70 #define M_ASSIGN_STR(NAME) (ret->NAME = (char*)mptr->NAME)
71 #define M_ASSIGN_CHAR(NAME) (ret->NAME = mptr->NAME[0])
72 
73 	mptr = __get_current_monetary_locale(loc);
74 	M_ASSIGN_STR(int_curr_symbol);
75 	M_ASSIGN_STR(currency_symbol);
76 	M_ASSIGN_STR(mon_decimal_point);
77 	M_ASSIGN_STR(mon_thousands_sep);
78 	M_ASSIGN_STR(mon_grouping);
79 	M_ASSIGN_STR(positive_sign);
80 	M_ASSIGN_STR(negative_sign);
81 	M_ASSIGN_CHAR(int_frac_digits);
82 	M_ASSIGN_CHAR(frac_digits);
83 	M_ASSIGN_CHAR(p_cs_precedes);
84 	M_ASSIGN_CHAR(p_sep_by_space);
85 	M_ASSIGN_CHAR(n_cs_precedes);
86 	M_ASSIGN_CHAR(n_sep_by_space);
87 	M_ASSIGN_CHAR(p_sign_posn);
88 	M_ASSIGN_CHAR(n_sign_posn);
89 	M_ASSIGN_CHAR(int_p_cs_precedes);
90 	M_ASSIGN_CHAR(int_n_cs_precedes);
91 	M_ASSIGN_CHAR(int_p_sep_by_space);
92 	M_ASSIGN_CHAR(int_n_sep_by_space);
93 	M_ASSIGN_CHAR(int_p_sign_posn);
94 	M_ASSIGN_CHAR(int_n_sign_posn);
95 	loc->monetary_locale_changed = 0;
96     }
97 
98     if (loc->numeric_locale_changed) {
99 	/* LC_NUMERIC part */
100         struct lc_numeric_T * nptr;
101 
102 #define N_ASSIGN_STR(NAME) (ret->NAME = (char*)nptr->NAME)
103 
104 	nptr = __get_current_numeric_locale(loc);
105 	N_ASSIGN_STR(decimal_point);
106 	N_ASSIGN_STR(thousands_sep);
107 	N_ASSIGN_STR(grouping);
108 	loc->numeric_locale_changed = 0;
109     }
110 
111     return ret;
112 }
113 struct lconv *
114 localeconv(void)
115 {
116 	return localeconv_l(__get_locale());
117 }
118