xref: /freebsd/lib/libc/locale/lnumeric.c (revision 3047fefe49f57a673de8df152c199de12ec2c6d3)
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 "lnumeric.h"
32 #include "ldpart.h"
33 
34 extern int __nlocale_changed;
35 extern const char *__fix_locale_grouping_str(const char *);
36 
37 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
38 
39 static char	numempty[] = { CHAR_MAX, '\0' };
40 
41 static const struct lc_numeric_T _C_numeric_locale = {
42 	".",     	/* decimal_point */
43 	"",     	/* thousands_sep */
44 	numempty	/* grouping */
45 };
46 
47 static struct lc_numeric_T _numeric_locale;
48 static int	_numeric_using_locale;
49 static char	*_numeric_locale_buf;
50 
51 int
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 		_numeric_locale.grouping =
64 		    __fix_locale_grouping_str(_numeric_locale.grouping);
65 	return (ret);
66 }
67 
68 struct lc_numeric_T *
69 __get_current_numeric_locale(void)
70 {
71 	return (_numeric_using_locale
72 		? &_numeric_locale
73 		: (struct lc_numeric_T *)&_C_numeric_locale);
74 }
75 
76 #ifdef LOCALE_DEBUG
77 void
78 numericdebug(void) {
79 printf(	"decimal_point = %s\n"
80 	"thousands_sep = %s\n"
81 	"grouping = %s\n",
82 	_numeric_locale.decimal_point,
83 	_numeric_locale.thousands_sep,
84 	_numeric_locale.grouping
85 );
86 }
87 #endif /* LOCALE_DEBUG */
88