locale/localeconv-fbsd.c

   1 /*
   2  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
   3  * Copyright (c) 1991, 1993
   4  *      The Regents of the University of California.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by the University of
  17  *      California, Berkeley and its contributors.
  18  * 4. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #if defined(LIBC_SCCS) && !defined(lint)
  36 static char sccsid[] = "@(#)localeconv.c        8.1 (Berkeley) 6/4/93";
  37 #endif /* LIBC_SCCS and not lint */
  38 #include <sys/cdefs.h>
  39 __FBSDID("$FreeBSD: src/lib/libc/locale/localeconv.c,v 1.13 2003/06/26 10:46:16 phantom Exp $");
  40
  41 #include "xlocale_private.h"
  42
  43 #include <limits.h>
  44 #include <locale.h>
  45
  46 #include "lmonetary.h"
  47 #include "lnumeric.h"
  48
  49 #ifdef __APPLE_PR3417676_HACK__
  50 /*------------------------------------------------------------------------
  51  * PR-3417676: We need to provide a way to force "C" locale style number
  52  * formatting independent of the locale setting.  We provide private
  53  * routines to get and set a flag that tells localeconv() to either return
  54  * a "C" struct lconv, or the one dependent on the actual locale.
  55  *------------------------------------------------------------------------*/
  56 static char empty[] = "";
  57 static char numempty[] = { CHAR_MAX, '\0' };
  58
  59 /*
  60  * Default (C) locale conversion.
  61  */
  62 static struct lconv _C_lconv = {
  63         ".",                    /* decimal_point */
  64         empty,                  /* thousands_sep */
  65         numempty,               /* grouping */
  66         empty,                  /* int_curr_symbol */
  67         empty,                  /* currency_symbol */
  68         empty,                  /* mon_decimal_point */
  69         empty,                  /* mon_thousands_sep */
  70         numempty,               /* mon_grouping */
  71         empty,                  /* positive_sign */
  72         empty,                  /* negative_sign */
  73         CHAR_MAX,               /* int_frac_digits */
  74         CHAR_MAX,               /* frac_digits */
  75         CHAR_MAX,               /* p_cs_precedes */
  76         CHAR_MAX,               /* p_sep_by_space */
  77         CHAR_MAX,               /* n_cs_precedes */
  78         CHAR_MAX,               /* n_sep_by_space */
  79         CHAR_MAX,               /* p_sign_posn */
  80         CHAR_MAX,               /* n_sign_posn */
  81         CHAR_MAX,               /* int_p_cs_precedes */
  82         CHAR_MAX,               /* int_n_cs_precedes */
  83         CHAR_MAX,               /* int_p_sep_by_space */
  84         CHAR_MAX,               /* int_n_sep_by_space */
  85         CHAR_MAX,               /* int_p_sign_posn */
  86         CHAR_MAX,               /* int_n_sign_posn */
  87 };
  88 static int _onlyClocaleconv = 0;
  89
  90 int
  91 __getonlyClocaleconv(void)
  92 {
  93     return _onlyClocaleconv;
  94 }
  95
  96 int
  97 __setonlyClocaleconv(int val)
  98 {
  99     int prev = _onlyClocaleconv;
 100
 101     _onlyClocaleconv = val;
 102     return prev;
 103 }
 104 #endif /* __APPLE_PR3417676_HACK__ */
 105
 106 /*
 107  * The localeconv() function constructs a struct lconv from the current
 108  * monetary and numeric locales.
 109  *
 110  * Because localeconv() may be called many times (especially by library
 111  * routines like printf() & strtod()), the approprate members of the
 112  * lconv structure are computed only when the monetary or numeric
 113  * locale has been changed.
 114  */
 115
 116 /*
 117  * Return the current locale conversion.
 118  */
 119 struct lconv *
 120 localeconv_l(locale_t loc)
 121 {
 122     struct lconv *lc;
 123
 124     NORMALIZE_LOCALE(loc);
 125
 126     if (loc->__mlocale_changed) {
 127       XL_LOCK(loc);
 128       if (loc->__mlocale_changed) {
 129         /* LC_MONETARY part */
 130         struct lc_monetary_T * mptr;
 131         struct lconv *lc = &loc->__lc_localeconv;
 132
 133 #define M_ASSIGN_STR(NAME) (lc->NAME = (char*)mptr->NAME)
 134 #define M_ASSIGN_CHAR(NAME) (lc->NAME = mptr->NAME[0])
 135
 136         mptr = __get_current_monetary_locale(loc);
 137         M_ASSIGN_STR(int_curr_symbol);
 138         M_ASSIGN_STR(currency_symbol);
 139         M_ASSIGN_STR(mon_decimal_point);
 140         M_ASSIGN_STR(mon_thousands_sep);
 141         M_ASSIGN_STR(mon_grouping);
 142         M_ASSIGN_STR(positive_sign);
 143         M_ASSIGN_STR(negative_sign);
 144         M_ASSIGN_CHAR(int_frac_digits);
 145         M_ASSIGN_CHAR(frac_digits);
 146         M_ASSIGN_CHAR(p_cs_precedes);
 147         M_ASSIGN_CHAR(p_sep_by_space);
 148         M_ASSIGN_CHAR(n_cs_precedes);
 149         M_ASSIGN_CHAR(n_sep_by_space);
 150         M_ASSIGN_CHAR(p_sign_posn);
 151         M_ASSIGN_CHAR(n_sign_posn);
 152         M_ASSIGN_CHAR(int_p_cs_precedes);
 153         M_ASSIGN_CHAR(int_n_cs_precedes);
 154         M_ASSIGN_CHAR(int_p_sep_by_space);
 155         M_ASSIGN_CHAR(int_n_sep_by_space);
 156         M_ASSIGN_CHAR(int_p_sign_posn);
 157         M_ASSIGN_CHAR(int_n_sign_posn);
 158         loc->__mlocale_changed = 0;
 159       }
 160       XL_UNLOCK(loc);
 161     }
 162
 163     if (loc->__nlocale_changed) {
 164       XL_LOCK(loc);
 165       if (loc->__nlocale_changed) {
 166         /* LC_NUMERIC part */
 167         struct lc_numeric_T * nptr;
 168         struct lconv *lc = &loc->__lc_localeconv;
 169
 170 #define N_ASSIGN_STR(NAME) (lc->NAME = (char*)nptr->NAME)
 171
 172         nptr = __get_current_numeric_locale(loc);
 173         N_ASSIGN_STR(decimal_point);
 174         N_ASSIGN_STR(thousands_sep);
 175         N_ASSIGN_STR(grouping);
 176         loc->__nlocale_changed = 0;
 177       }
 178       XL_UNLOCK(loc);
 179     }
 180
 181     return &loc->__lc_localeconv;
 182 }
 183
 184 /*
 185  * Return the current locale conversion.
 186  */
 187 struct lconv *
 188 localeconv()
 189 {
 190 #ifdef __APPLE_PR3417676_HACK__
 191     /*--------------------------------------------------------------------
 192      * If _onlyClocaleconv is non-zero, just return __lconv, which is a "C"
 193      * struct lconv *.  Otherwise, do the normal thing.
 194      *--------------------------------------------------------------------*/
 195     if (_onlyClocaleconv)
 196         return &_C_lconv;
 197 #endif /* __APPLE_PR3417676_HACK__ */
 198     return localeconv_l(__current_locale());
 199 }