localeconv.c revision 104711 
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 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by the University of
17 *	California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#if defined(LIBC_SCCS) && !defined(lint)
36static char sccsid[] = "@(#)localeconv.c	8.1 (Berkeley) 6/4/93";
37#endif /* LIBC_SCCS and not lint */
38#include <sys/cdefs.h>
39__FBSDID("$FreeBSD: head/lib/libc/locale/localeconv.c 104711 2002-10-09 09:19:28Z tjr $");
40
41#include <locale.h>
42#include "lmonetary.h"
43#include "lnumeric.h"
44
45/*
46 * The localeconv() function constructs a struct lconv from the current
47 * monetary and numeric locales.
48 *
49 * Because localeconv() may be called many times (especially by library
50 * routines like printf() & strtod()), the approprate members of the
51 * lconv structure are computed only when the monetary or numeric
52 * locale has been changed.
53 */
54int __mlocale_changed = 1;
55int __nlocale_changed = 1;
56
57/*
58 * Return the current locale conversion.
59 */
60struct lconv *
61localeconv()
62{
63    static struct lconv ret;
64
65    if (__mlocale_changed) {
66	/* LC_MONETARY part */
67        struct lc_monetary_T * mptr;
68
69#define M_ASSIGN_STR(NAME) (ret.NAME = (char*)mptr->NAME)
70#define M_ASSIGN_CHAR(NAME) (ret.NAME = mptr->NAME[0])
71
72	mptr = __get_current_monetary_locale();
73	M_ASSIGN_STR(int_curr_symbol);
74	M_ASSIGN_STR(currency_symbol);
75	M_ASSIGN_STR(mon_decimal_point);
76	M_ASSIGN_STR(mon_thousands_sep);
77	M_ASSIGN_STR(mon_grouping);
78	M_ASSIGN_STR(positive_sign);
79	M_ASSIGN_STR(negative_sign);
80	M_ASSIGN_CHAR(int_frac_digits);
81	M_ASSIGN_CHAR(frac_digits);
82	M_ASSIGN_CHAR(p_cs_precedes);
83	M_ASSIGN_CHAR(p_sep_by_space);
84	M_ASSIGN_CHAR(n_cs_precedes);
85	M_ASSIGN_CHAR(n_sep_by_space);
86	M_ASSIGN_CHAR(p_sign_posn);
87	M_ASSIGN_CHAR(n_sign_posn);
88	M_ASSIGN_CHAR(int_p_cs_precedes);
89	M_ASSIGN_CHAR(int_n_cs_precedes);
90	M_ASSIGN_CHAR(int_p_sep_by_space);
91	M_ASSIGN_CHAR(int_n_sep_by_space);
92	M_ASSIGN_CHAR(int_p_sign_posn);
93	M_ASSIGN_CHAR(int_n_sign_posn);
94	__mlocale_changed = 0;
95    }
96
97    if (__nlocale_changed) {
98	/* LC_NUMERIC part */
99        struct lc_numeric_T * nptr;
100
101#define N_ASSIGN_STR(NAME) (ret.NAME = (char*)nptr->NAME)
102
103	nptr = __get_current_numeric_locale();
104	N_ASSIGN_STR(decimal_point);
105	N_ASSIGN_STR(thousands_sep);
106	N_ASSIGN_STR(grouping);
107	__nlocale_changed = 0;
108    }
109
110    return (&ret);
111}
112