toolchain/gcc/newlib/libc/locale/lnumeric.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
  29 #include <limits.h>
  30 #include "lnumeric.h"
  31 #include "ldpart.h"
  32
  33 extern int __nlocale_changed;
  34 extern const char *__fix_locale_grouping_str(const char *);
  35
  36 #define LCNUMERIC_SIZE (sizeof(struct lc_numeric_T) / sizeof(char *))
  37
  38 static char     numempty[] = { CHAR_MAX, '\0' };
  39
  40 static const struct lc_numeric_T _C_numeric_locale = {
  41         ".",            /* decimal_point */
  42         "",             /* thousands_sep */
  43         numempty        /* grouping */
  44 };
  45
  46 static struct lc_numeric_T _numeric_locale;
  47 static int      _numeric_using_locale;
  48 static char     *_numeric_locale_buf;
  49
  50 int
  51 __numeric_load_locale(const char *name) {
  52
  53         int ret;
  54
  55         __nlocale_changed = 1;
  56         ret = __part_load_locale(name, &_numeric_using_locale,
  57                 _numeric_locale_buf, "LC_NUMERIC",
  58                 LCNUMERIC_SIZE, LCNUMERIC_SIZE,
  59                 (const char **)&_numeric_locale);
  60         if (ret == 0 && _numeric_using_locale)
  61                 _numeric_locale.grouping =
  62                         __fix_locale_grouping_str(_numeric_locale.grouping);
  63         return ret;
  64 }
  65
  66 struct lc_numeric_T *
  67 __get_current_numeric_locale(void) {
  68
  69         return (_numeric_using_locale
  70                 ? &_numeric_locale
  71                 : (struct lc_numeric_T *)&_C_numeric_locale);
  72 }
  73
  74 #ifdef LOCALE_DEBUG
  75 void
  76 numericdebug(void) {
  77 printf( "decimal_point = %s\n"
  78         "thousands_sep = %s\n"
  79         "grouping = %s\n",
  80         _numeric_locale.decimal_point,
  81         _numeric_locale.thousands_sep,
  82         _numeric_locale.grouping
  83 );
  84 }
  85 #endif /* LOCALE_DEBUG */