lib/libc/locale/lmonetary.c

   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 <stddef.h>
  32 #include <stdlib.h>
  33
  34 #include "ldpart.h"
  35 #include "lmonetary.h"
  36
  37 extern int __mlocale_changed;
  38 extern const char * __fix_locale_grouping_str(const char *);
  39
  40 #define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
  41 #define LCMONETARY_SIZE_MIN \
  42                 (offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
  43                     sizeof(char *))
  44
  45 static char     empty[] = "";
  46 static char     numempty[] = { CHAR_MAX, '\0'};
  47
  48 static const struct lc_monetary_T _C_monetary_locale = {
  49         empty,          /* int_curr_symbol */
  50         empty,          /* currency_symbol */
  51         empty,          /* mon_decimal_point */
  52         empty,          /* mon_thousands_sep */
  53         numempty,       /* mon_grouping */
  54         empty,          /* positive_sign */
  55         empty,          /* negative_sign */
  56         numempty,       /* int_frac_digits */
  57         numempty,       /* frac_digits */
  58         numempty,       /* p_cs_precedes */
  59         numempty,       /* p_sep_by_space */
  60         numempty,       /* n_cs_precedes */
  61         numempty,       /* n_sep_by_space */
  62         numempty,       /* p_sign_posn */
  63         numempty,       /* n_sign_posn */
  64         numempty,       /* int_p_cs_precedes */
  65         numempty,       /* int_n_cs_precedes */
  66         numempty,       /* int_p_sep_by_space */
  67         numempty,       /* int_n_sep_by_space */
  68         numempty,       /* int_p_sign_posn */
  69         numempty        /* int_n_sign_posn */
  70 };
  71
  72 static struct lc_monetary_T _monetary_locale;
  73 static int      _monetary_using_locale;
  74 static char     *_monetary_locale_buf;
  75
  76 static char
  77 cnv(const char *str)
  78 {
  79         int i = strtol(str, NULL, 10);
  80
  81         if (i == -1)
  82                 i = CHAR_MAX;
  83         return ((char)i);
  84 }
  85
  86 int
  87 __monetary_load_locale(const char *name)
  88 {
  89         int ret;
  90
  91         ret = __part_load_locale(name, &_monetary_using_locale,
  92                 &_monetary_locale_buf, "LC_MONETARY",
  93                 LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
  94                 (const char **)&_monetary_locale);
  95         if (ret != _LDP_ERROR)
  96                 __mlocale_changed = 1;
  97         if (ret == _LDP_LOADED) {
  98                 _monetary_locale.mon_grouping =
  99                      __fix_locale_grouping_str(_monetary_locale.mon_grouping);
 100
 101 #define M_ASSIGN_CHAR(NAME) (((char *)_monetary_locale.NAME)[0] = \
 102                              cnv(_monetary_locale.NAME))
 103
 104                 M_ASSIGN_CHAR(int_frac_digits);
 105                 M_ASSIGN_CHAR(frac_digits);
 106                 M_ASSIGN_CHAR(p_cs_precedes);
 107                 M_ASSIGN_CHAR(p_sep_by_space);
 108                 M_ASSIGN_CHAR(n_cs_precedes);
 109                 M_ASSIGN_CHAR(n_sep_by_space);
 110                 M_ASSIGN_CHAR(p_sign_posn);
 111                 M_ASSIGN_CHAR(n_sign_posn);
 112
 113                 /*
 114                  * The six additional C99 international monetary formatting
 115                  * parameters default to the national parameters when
 116                  * reading FreeBSD LC_MONETARY data files.
 117                  */
 118 #define M_ASSIGN_ICHAR(NAME)                                            \
 119                 do {                                                    \
 120                         if (_monetary_locale.int_##NAME == NULL)        \
 121                                 _monetary_locale.int_##NAME =           \
 122                                     _monetary_locale.NAME;              \
 123                         else                                            \
 124                                 M_ASSIGN_CHAR(int_##NAME);              \
 125                 } while (0)
 126
 127                 M_ASSIGN_ICHAR(p_cs_precedes);
 128                 M_ASSIGN_ICHAR(n_cs_precedes);
 129                 M_ASSIGN_ICHAR(p_sep_by_space);
 130                 M_ASSIGN_ICHAR(n_sep_by_space);
 131                 M_ASSIGN_ICHAR(p_sign_posn);
 132                 M_ASSIGN_ICHAR(n_sign_posn);
 133         }
 134         return (ret);
 135 }
 136
 137 struct lc_monetary_T *
 138 __get_current_monetary_locale(void)
 139 {
 140         return (_monetary_using_locale
 141                 ? &_monetary_locale
 142                 : (struct lc_monetary_T *)&_C_monetary_locale);
 143 }
 144
 145 #ifdef LOCALE_DEBUG
 146 void
 147 monetdebug() {
 148 printf( "int_curr_symbol = %s\n"
 149         "currency_symbol = %s\n"
 150         "mon_decimal_point = %s\n"
 151         "mon_thousands_sep = %s\n"
 152         "mon_grouping = %s\n"
 153         "positive_sign = %s\n"
 154         "negative_sign = %s\n"
 155         "int_frac_digits = %d\n"
 156         "frac_digits = %d\n"
 157         "p_cs_precedes = %d\n"
 158         "p_sep_by_space = %d\n"
 159         "n_cs_precedes = %d\n"
 160         "n_sep_by_space = %d\n"
 161         "p_sign_posn = %d\n"
 162         "n_sign_posn = %d\n",
 163         "int_p_cs_precedes = %d\n"
 164         "int_p_sep_by_space = %d\n"
 165         "int_n_cs_precedes = %d\n"
 166         "int_n_sep_by_space = %d\n"
 167         "int_p_sign_posn = %d\n"
 168         "int_n_sign_posn = %d\n",
 169         _monetary_locale.int_curr_symbol,
 170         _monetary_locale.currency_symbol,
 171         _monetary_locale.mon_decimal_point,
 172         _monetary_locale.mon_thousands_sep,
 173         _monetary_locale.mon_grouping,
 174         _monetary_locale.positive_sign,
 175         _monetary_locale.negative_sign,
 176         _monetary_locale.int_frac_digits[0],
 177         _monetary_locale.frac_digits[0],
 178         _monetary_locale.p_cs_precedes[0],
 179         _monetary_locale.p_sep_by_space[0],
 180         _monetary_locale.n_cs_precedes[0],
 181         _monetary_locale.n_sep_by_space[0],
 182         _monetary_locale.p_sign_posn[0],
 183         _monetary_locale.n_sign_posn[0],
 184         _monetary_locale.int_p_cs_precedes[0],
 185         _monetary_locale.int_p_sep_by_space[0],
 186         _monetary_locale.int_n_cs_precedes[0],
 187         _monetary_locale.int_n_sep_by_space[0],
 188         _monetary_locale.int_p_sign_posn[0],
 189         _monetary_locale.int_n_sign_posn[0]
 190 );
 191 }
 192 #endif /* LOCALE_DEBUG */