lnumeric.c revision 116274 
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: head/lib/libc/locale/lnumeric.c 116274 2003-06-13 00:14:07Z jkh $");
29
30#include <limits.h>
31#include "lnumeric.h"
32#include "ldpart.h"
33
34extern int __nlocale_changed;
35extern const char *__fix_locale_grouping_str(const char *);
36
37#define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
38
39static char	numempty[] = { CHAR_MAX, '\0' };
40
41static const struct lc_numeric_T _C_numeric_locale = {
42	".",     	/* decimal_point */
43	"",     	/* thousands_sep */
44	numempty	/* grouping */
45};
46
47static struct lc_numeric_T _numeric_locale;
48static int	_numeric_using_locale;
49static char	*_numeric_locale_buf;
50
51int
52__numeric_load_locale(const char *name)
53{
54	int ret;
55
56	ret = __part_load_locale(name, &_numeric_using_locale,
57		&_numeric_locale_buf, "LC_NUMERIC",
58		LCNUMERIC_SIZE, LCNUMERIC_SIZE,
59		(const char **)&_numeric_locale);
60	if (ret != _LDP_ERROR)
61		__nlocale_changed = 1;
62	if (ret == _LDP_LOADED) {
63		/* Can't be empty according to C99 */
64		if (*_numeric_locale.decimal_point == '\0')
65			_numeric_locale.decimal_point =
66			    _C_numeric_locale.decimal_point;
67		_numeric_locale.grouping =
68		    __fix_locale_grouping_str(_numeric_locale.grouping);
69	}
70	return (ret);
71}
72
73struct lc_numeric_T *
74__get_current_numeric_locale(void)
75{
76	return (_numeric_using_locale
77		? &_numeric_locale
78		: (struct lc_numeric_T *)&_C_numeric_locale);
79}
80
81#ifdef LOCALE_DEBUG
82void
83numericdebug(void) {
84printf(	"decimal_point = %s\n"
85	"thousands_sep = %s\n"
86	"grouping = %s\n",
87	_numeric_locale.decimal_point,
88	_numeric_locale.thousands_sep,
89	_numeric_locale.grouping
90);
91}
92#endif /* LOCALE_DEBUG */
93