locale/FreeBSD/localeconv.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  * 4. Neither the name of the University nor the names of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #if defined(LIBC_SCCS) && !defined(lint)
  32 static char sccsid[] = "@(#)localeconv.c        8.1 (Berkeley) 6/4/93";
  33 #endif /* LIBC_SCCS and not lint */
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD: src/lib/libc/locale/localeconv.c,v 1.14 2007/12/12 07:43:23 phantom Exp $");
  36
  37 #include <locale.h>
  38
  39 #include "lmonetary.h"
  40 #include "lnumeric.h"
  41
  42 /*
  43  * The localeconv() function constructs a struct lconv from the current
  44  * monetary and numeric locales.
  45  *
  46  * Because localeconv() may be called many times (especially by library
  47  * routines like printf() & strtod()), the approprate members of the
  48  * lconv structure are computed only when the monetary or numeric
  49  * locale has been changed.
  50  */
  51 int __mlocale_changed = 1;
  52 int __nlocale_changed = 1;
  53
  54 /*
  55  * Return the current locale conversion.
  56  */
  57 struct lconv *
  58 localeconv()
  59 {
  60     static struct lconv ret;
  61
  62     if (__mlocale_changed) {
  63         /* LC_MONETARY part */
  64         struct lc_monetary_T * mptr;
  65
  66 #define M_ASSIGN_STR(NAME) (ret.NAME = (char*)mptr->NAME)
  67 #define M_ASSIGN_CHAR(NAME) (ret.NAME = mptr->NAME[0])
  68
  69         mptr = __get_current_monetary_locale();
  70         M_ASSIGN_STR(int_curr_symbol);
  71         M_ASSIGN_STR(currency_symbol);
  72         M_ASSIGN_STR(mon_decimal_point);
  73         M_ASSIGN_STR(mon_thousands_sep);
  74         M_ASSIGN_STR(mon_grouping);
  75         M_ASSIGN_STR(positive_sign);
  76         M_ASSIGN_STR(negative_sign);
  77         M_ASSIGN_CHAR(int_frac_digits);
  78         M_ASSIGN_CHAR(frac_digits);
  79         M_ASSIGN_CHAR(p_cs_precedes);
  80         M_ASSIGN_CHAR(p_sep_by_space);
  81         M_ASSIGN_CHAR(n_cs_precedes);
  82         M_ASSIGN_CHAR(n_sep_by_space);
  83         M_ASSIGN_CHAR(p_sign_posn);
  84         M_ASSIGN_CHAR(n_sign_posn);
  85         M_ASSIGN_CHAR(int_p_cs_precedes);
  86         M_ASSIGN_CHAR(int_n_cs_precedes);
  87         M_ASSIGN_CHAR(int_p_sep_by_space);
  88         M_ASSIGN_CHAR(int_n_sep_by_space);
  89         M_ASSIGN_CHAR(int_p_sign_posn);
  90         M_ASSIGN_CHAR(int_n_sign_posn);
  91         __mlocale_changed = 0;
  92     }
  93
  94     if (__nlocale_changed) {
  95         /* LC_NUMERIC part */
  96         struct lc_numeric_T * nptr;
  97
  98 #define N_ASSIGN_STR(NAME) (ret.NAME = (char*)nptr->NAME)
  99
 100         nptr = __get_current_numeric_locale();
 101         N_ASSIGN_STR(decimal_point);
 102         N_ASSIGN_STR(thousands_sep);
 103         N_ASSIGN_STR(grouping);
 104         __nlocale_changed = 0;
 105     }
 106
 107     return (&ret);
 108 }