freebsd-skq/lib/libc/locale/lmonetary.c
theraven 0f6ef690b3 Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter.  Also
adds support for per-thread locales.  This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by:    das (gdtoa changes)
Approved by:    dim (mentor)
2011-11-20 14:45:42 +00:00

226 lines
6.5 KiB
C

/*
* Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
* All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <limits.h>
#include <stddef.h>
#include <stdlib.h>
#include "ldpart.h"
#include "lmonetary.h"
extern const char * __fix_locale_grouping_str(const char *);
#define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
#define LCMONETARY_SIZE_MIN \
(offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
sizeof(char *))
static char empty[] = "";
static char numempty[] = { CHAR_MAX, '\0'};
static const struct lc_monetary_T _C_monetary_locale = {
empty, /* int_curr_symbol */
empty, /* currency_symbol */
empty, /* mon_decimal_point */
empty, /* mon_thousands_sep */
numempty, /* mon_grouping */
empty, /* positive_sign */
empty, /* negative_sign */
numempty, /* int_frac_digits */
numempty, /* frac_digits */
numempty, /* p_cs_precedes */
numempty, /* p_sep_by_space */
numempty, /* n_cs_precedes */
numempty, /* n_sep_by_space */
numempty, /* p_sign_posn */
numempty, /* n_sign_posn */
numempty, /* int_p_cs_precedes */
numempty, /* int_n_cs_precedes */
numempty, /* int_p_sep_by_space */
numempty, /* int_n_sep_by_space */
numempty, /* int_p_sign_posn */
numempty /* int_n_sign_posn */
};
struct xlocale_monetary __xlocale_global_monetary;
static char
cnv(const char *str)
{
int i = strtol(str, NULL, 10);
if (i == -1)
i = CHAR_MAX;
return ((char)i);
}
static void
destruct_monetary(void *v)
{
struct xlocale_monetary *l = v;
if (l->buffer)
free(l->buffer);
free(l);
}
static int
monetary_load_locale_l(struct xlocale_monetary *loc, int *using_locale,
int *changed, const char *name)
{
int ret;
struct lc_monetary_T *l = &loc->locale;
ret = __part_load_locale(name, using_locale,
&loc->buffer, "LC_MONETARY",
LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
(const char **)l);
if (ret != _LDP_ERROR)
*changed = 1;
if (ret == _LDP_LOADED) {
l->mon_grouping =
__fix_locale_grouping_str(l->mon_grouping);
#define M_ASSIGN_CHAR(NAME) (((char *)l->NAME)[0] = \
cnv(l->NAME))
M_ASSIGN_CHAR(int_frac_digits);
M_ASSIGN_CHAR(frac_digits);
M_ASSIGN_CHAR(p_cs_precedes);
M_ASSIGN_CHAR(p_sep_by_space);
M_ASSIGN_CHAR(n_cs_precedes);
M_ASSIGN_CHAR(n_sep_by_space);
M_ASSIGN_CHAR(p_sign_posn);
M_ASSIGN_CHAR(n_sign_posn);
/*
* The six additional C99 international monetary formatting
* parameters default to the national parameters when
* reading FreeBSD LC_MONETARY data files.
*/
#define M_ASSIGN_ICHAR(NAME) \
do { \
if (l->int_##NAME == NULL) \
l->int_##NAME = \
l->NAME; \
else \
M_ASSIGN_CHAR(int_##NAME); \
} while (0)
M_ASSIGN_ICHAR(p_cs_precedes);
M_ASSIGN_ICHAR(n_cs_precedes);
M_ASSIGN_ICHAR(p_sep_by_space);
M_ASSIGN_ICHAR(n_sep_by_space);
M_ASSIGN_ICHAR(p_sign_posn);
M_ASSIGN_ICHAR(n_sign_posn);
}
return (ret);
}
int
__monetary_load_locale(const char *name)
{
return monetary_load_locale_l(&__xlocale_global_monetary,
&__xlocale_global_locale.using_monetary_locale,
&__xlocale_global_locale.monetary_locale_changed, name);
}
void* __monetary_load(const char *name, locale_t l)
{
struct xlocale_monetary *new = calloc(sizeof(struct xlocale_monetary), 1);
new->header.header.destructor = destruct_monetary;
if (monetary_load_locale_l(new, &l->using_monetary_locale,
&l->monetary_locale_changed, name) == _LDP_ERROR)
{
xlocale_release(new);
return NULL;
}
return new;
}
struct lc_monetary_T *
__get_current_monetary_locale(locale_t loc)
{
return (loc->using_monetary_locale
? &((struct xlocale_monetary*)loc->components[XLC_MONETARY])->locale
: (struct lc_monetary_T *)&_C_monetary_locale);
}
#ifdef LOCALE_DEBUG
void
monetdebug() {
printf( "int_curr_symbol = %s\n"
"currency_symbol = %s\n"
"mon_decimal_point = %s\n"
"mon_thousands_sep = %s\n"
"mon_grouping = %s\n"
"positive_sign = %s\n"
"negative_sign = %s\n"
"int_frac_digits = %d\n"
"frac_digits = %d\n"
"p_cs_precedes = %d\n"
"p_sep_by_space = %d\n"
"n_cs_precedes = %d\n"
"n_sep_by_space = %d\n"
"p_sign_posn = %d\n"
"n_sign_posn = %d\n",
"int_p_cs_precedes = %d\n"
"int_p_sep_by_space = %d\n"
"int_n_cs_precedes = %d\n"
"int_n_sep_by_space = %d\n"
"int_p_sign_posn = %d\n"
"int_n_sign_posn = %d\n",
_monetary_locale.int_curr_symbol,
_monetary_locale.currency_symbol,
_monetary_locale.mon_decimal_point,
_monetary_locale.mon_thousands_sep,
_monetary_locale.mon_grouping,
_monetary_locale.positive_sign,
_monetary_locale.negative_sign,
_monetary_locale.int_frac_digits[0],
_monetary_locale.frac_digits[0],
_monetary_locale.p_cs_precedes[0],
_monetary_locale.p_sep_by_space[0],
_monetary_locale.n_cs_precedes[0],
_monetary_locale.n_sep_by_space[0],
_monetary_locale.p_sign_posn[0],
_monetary_locale.n_sign_posn[0],
_monetary_locale.int_p_cs_precedes[0],
_monetary_locale.int_p_sep_by_space[0],
_monetary_locale.int_n_cs_precedes[0],
_monetary_locale.int_n_sep_by_space[0],
_monetary_locale.int_p_sign_posn[0],
_monetary_locale.int_n_sign_posn[0]
);
}
#endif /* LOCALE_DEBUG */