1 /*
   2  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
   3  * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
   4  * Copyright (c) 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 4. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31 
  32 #ifndef _LCONV_C99
  33 #define _LCONV_C99      /* so we get all the extensions */
  34 #endif
  35 
  36 #include "lint.h"
  37 #include <locale.h>
  38 #include "lmonetary.h"
  39 #include "lnumeric.h"
  40 
  41 /*
  42  * The localeconv() function constructs a struct lconv from the current
  43  * monetary and numeric locales.
  44  *
  45  * Because localeconv() may be called many times (especially by library
  46  * routines like printf() & strtod()), the approprate members of the
  47  * lconv structure are computed only when the monetary or numeric
  48  * locale has been changed.
  49  */
  50 int __mlocale_changed = 1;
  51 int __nlocale_changed = 1;
  52 
  53 /*
  54  * Return the current locale conversion.
  55  */
  56 struct lconv *
  57 localeconv(void)
  58 {
  59         static struct lconv ret;
  60 
  61         if (__mlocale_changed) {
  62                 /* LC_MONETARY part */
  63                 struct lc_monetary_T *mptr;
  64 
  65 #define M_ASSIGN_STR(NAME) (ret.NAME = (char *)mptr->NAME)
  66 #define M_ASSIGN_CHAR(NAME) (ret.NAME = mptr->NAME[0])
  67 
  68                 mptr = __get_current_monetary_locale();
  69                 M_ASSIGN_STR(int_curr_symbol);
  70                 M_ASSIGN_STR(currency_symbol);
  71                 M_ASSIGN_STR(mon_decimal_point);
  72                 M_ASSIGN_STR(mon_thousands_sep);
  73                 M_ASSIGN_STR(mon_grouping);
  74                 M_ASSIGN_STR(positive_sign);
  75                 M_ASSIGN_STR(negative_sign);
  76                 M_ASSIGN_CHAR(int_frac_digits);
  77                 M_ASSIGN_CHAR(frac_digits);
  78                 M_ASSIGN_CHAR(p_cs_precedes);
  79                 M_ASSIGN_CHAR(p_sep_by_space);
  80                 M_ASSIGN_CHAR(n_cs_precedes);
  81                 M_ASSIGN_CHAR(n_sep_by_space);
  82                 M_ASSIGN_CHAR(p_sign_posn);
  83                 M_ASSIGN_CHAR(n_sign_posn);
  84                 M_ASSIGN_CHAR(int_p_cs_precedes);
  85                 M_ASSIGN_CHAR(int_n_cs_precedes);
  86                 M_ASSIGN_CHAR(int_p_sep_by_space);
  87                 M_ASSIGN_CHAR(int_n_sep_by_space);
  88                 M_ASSIGN_CHAR(int_p_sign_posn);
  89                 M_ASSIGN_CHAR(int_n_sign_posn);
  90                 __mlocale_changed = 0;
  91         }
  92 
  93         if (__nlocale_changed) {
  94                 /* LC_NUMERIC part */
  95                 struct lc_numeric_T *nptr;
  96 
  97 #define N_ASSIGN_STR(NAME) (ret.NAME = (char *)nptr->NAME)
  98 
  99                 nptr = __get_current_numeric_locale();
 100                 N_ASSIGN_STR(decimal_point);
 101                 N_ASSIGN_STR(thousands_sep);
 102                 N_ASSIGN_STR(grouping);
 103                 __nlocale_changed = 0;
 104         }
 105 
 106         return (&ret);
 107 }