locale/FreeBSD/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: src/lib/libc/locale/lmonetary.c,v 1.17 2002/10/12 11:31:07 ache Exp $");
  29
  30 #include <limits.h>
  31 #include <stddef.h>
  32 #include <stdlib.h>
  33 #include "lmonetary.h"
  34 #include "ldpart.h"
  35
  36 extern int __mlocale_changed;
  37 extern const char * __fix_locale_grouping_str(const char *);
  38
  39 #define LCMONETARY_SIZE_FULL (sizeof(struct lc_monetary_T) / sizeof(char *))
  40 #define LCMONETARY_SIZE_MIN \
  41                 (offsetof(struct lc_monetary_T, int_p_cs_precedes) / \
  42                     sizeof(char *))
  43
  44 static char     empty[] = "";
  45 static char     numempty[] = { CHAR_MAX, '\0'};
  46
  47 static const struct lc_monetary_T _C_monetary_locale = {
  48         empty,          /* int_curr_symbol */
  49         empty,          /* currency_symbol */
  50         empty,          /* mon_decimal_point */
  51         empty,          /* mon_thousands_sep */
  52         numempty,       /* mon_grouping */
  53         empty,          /* positive_sign */
  54         empty,          /* negative_sign */
  55         numempty,       /* int_frac_digits */
  56         numempty,       /* frac_digits */
  57         numempty,       /* p_cs_precedes */
  58         numempty,       /* p_sep_by_space */
  59         numempty,       /* n_cs_precedes */
  60         numempty,       /* n_sep_by_space */
  61         numempty,       /* p_sign_posn */
  62         numempty,       /* n_sign_posn */
  63         numempty,       /* int_p_cs_precedes */
  64         numempty,       /* int_n_cs_precedes */
  65         numempty,       /* int_p_sep_by_space */
  66         numempty,       /* int_n_sep_by_space */
  67         numempty,       /* int_p_sign_posn */
  68         numempty        /* int_n_sign_posn */
  69 };
  70
  71 static struct lc_monetary_T _monetary_locale;
  72 static int      _monetary_using_locale;
  73 static char     *_monetary_locale_buf;
  74
  75 static char
  76 cnv(const char *str)
  77 {
  78         int i = strtol(str, NULL, 10);
  79
  80         if (i == -1)
  81                 i = CHAR_MAX;
  82         return ((char)i);
  83 }
  84
  85 int
  86 __monetary_load_locale(const char *name)
  87 {
  88         int ret;
  89
  90         ret = __part_load_locale(name, &_monetary_using_locale,
  91                 _monetary_locale_buf, "LC_MONETARY",
  92                 LCMONETARY_SIZE_FULL, LCMONETARY_SIZE_MIN,
  93                 (const char **)&_monetary_locale);
  94         if (ret != _LDP_ERROR)
  95                 __mlocale_changed = 1;
  96         if (ret == _LDP_LOADED) {
  97                 _monetary_locale.mon_grouping =
  98                      __fix_locale_grouping_str(_monetary_locale.mon_grouping);
  99
 100 #define M_ASSIGN_CHAR(NAME) (((char *)_monetary_locale.NAME)[0] = \
 101                              cnv(_monetary_locale.NAME))
 102
 103                 M_ASSIGN_CHAR(int_frac_digits);
 104                 M_ASSIGN_CHAR(frac_digits);
 105                 M_ASSIGN_CHAR(p_cs_precedes);
 106                 M_ASSIGN_CHAR(p_sep_by_space);
 107                 M_ASSIGN_CHAR(n_cs_precedes);
 108                 M_ASSIGN_CHAR(n_sep_by_space);
 109                 M_ASSIGN_CHAR(p_sign_posn);
 110                 M_ASSIGN_CHAR(n_sign_posn);
 111
 112                 /*
 113                  * The six additional C99 international monetary formatting
 114                  * parameters default to the national parameters when
 115                  * reading FreeBSD 4 LC_MONETARY data files.
 116                  */
 117 #define M_ASSIGN_ICHAR(NAME)                                            \
 118                 do {                                                    \
 119                         if (_monetary_locale.int_##NAME == NULL)        \
 120                                 _monetary_locale.int_##NAME =           \
 121                                     _monetary_locale.NAME;              \
 122                         else                                            \
 123                                 M_ASSIGN_CHAR(int_##NAME);              \
 124                 } while (0)
 125
 126                 M_ASSIGN_ICHAR(p_cs_precedes);
 127                 M_ASSIGN_ICHAR(n_cs_precedes);
 128                 M_ASSIGN_ICHAR(p_sep_by_space);
 129                 M_ASSIGN_ICHAR(n_sep_by_space);
 130                 M_ASSIGN_ICHAR(p_sign_posn);
 131                 M_ASSIGN_ICHAR(n_sign_posn);
 132         }
 133         return (ret);
 134 }
 135
 136 struct lc_monetary_T *
 137 __get_current_monetary_locale(void)
 138 {
 139         return (_monetary_using_locale
 140                 ? &_monetary_locale
 141                 : (struct lc_monetary_T *)&_C_monetary_locale);
 142 }
 143
 144 #ifdef LOCALE_DEBUG
 145 void
 146 monetdebug() {
 147 printf( "int_curr_symbol = %s\n"
 148         "currency_symbol = %s\n"
 149         "mon_decimal_point = %s\n"
 150         "mon_thousands_sep = %s\n"
 151         "mon_grouping = %s\n"
 152         "positive_sign = %s\n"
 153         "negative_sign = %s\n"
 154         "int_frac_digits = %d\n"
 155         "frac_digits = %d\n"
 156         "p_cs_precedes = %d\n"
 157         "p_sep_by_space = %d\n"
 158         "n_cs_precedes = %d\n"
 159         "n_sep_by_space = %d\n"
 160         "p_sign_posn = %d\n"
 161         "n_sign_posn = %d\n",
 162         _monetary_locale.int_curr_symbol,
 163         _monetary_locale.currency_symbol,
 164         _monetary_locale.mon_decimal_point,
 165         _monetary_locale.mon_thousands_sep,
 166         _monetary_locale.mon_grouping,
 167         _monetary_locale.positive_sign,
 168         _monetary_locale.negative_sign,
 169         _monetary_locale.int_frac_digits[0],
 170         _monetary_locale.frac_digits[0],
 171         _monetary_locale.p_cs_precedes[0],
 172         _monetary_locale.p_sep_by_space[0],
 173         _monetary_locale.n_cs_precedes[0],
 174         _monetary_locale.n_sep_by_space[0],
 175         _monetary_locale.p_sign_posn[0],
 176         _monetary_locale.n_sign_posn[0]
 177 );
 178 }
 179 #endif /* LOCALE_DEBUG */