locale/locale.h

   1 /* Copyright (C) 1991,92,1995-1999,2000,2001 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /*
  20  *      ISO C99 Standard: 7.11 Localization     <locale.h>
  21  */
  22
  23 #ifndef _LOCALE_H
  24 #define _LOCALE_H       1
  25
  26 #include <features.h>
  27
  28 #define __need_NULL
  29 #include <stddef.h>
  30 #include <bits/locale.h>
  31
  32 __BEGIN_DECLS
  33
  34 /* These are the possibilities for the first argument to setlocale.
  35    The code assumes that the lowest LC_* symbol has the value zero.  */
  36 #define LC_CTYPE          __LC_CTYPE
  37 #define LC_NUMERIC        __LC_NUMERIC
  38 #define LC_TIME           __LC_TIME
  39 #define LC_COLLATE        __LC_COLLATE
  40 #define LC_MONETARY       __LC_MONETARY
  41 #define LC_MESSAGES       __LC_MESSAGES
  42 #define LC_ALL            __LC_ALL
  43 #define LC_PAPER          __LC_PAPER
  44 #define LC_NAME           __LC_NAME
  45 #define LC_ADDRESS        __LC_ADDRESS
  46 #define LC_TELEPHONE      __LC_TELEPHONE
  47 #define LC_MEASUREMENT    __LC_MEASUREMENT
  48 #define LC_IDENTIFICATION __LC_IDENTIFICATION
  49
  50
  51 /* Structure giving information about numeric and monetary notation.  */
  52 struct lconv
  53 {
  54   /* Numeric (non-monetary) information.  */
  55
  56   char *decimal_point;          /* Decimal point character.  */
  57   char *thousands_sep;          /* Thousands separator.  */
  58   /* Each element is the number of digits in each group;
  59      elements with higher indices are farther left.
  60      An element with value CHAR_MAX means that no further grouping is done.
  61      An element with value 0 means that the previous element is used
  62      for all groups farther left.  */
  63   char *grouping;
  64
  65   /* Monetary information.  */
  66
  67   /* First three chars are a currency symbol from ISO 4217.
  68      Fourth char is the separator.  Fifth char is '\0'.  */
  69   char *int_curr_symbol;
  70   char *currency_symbol;        /* Local currency symbol.  */
  71   char *mon_decimal_point;      /* Decimal point character.  */
  72   char *mon_thousands_sep;      /* Thousands separator.  */
  73   char *mon_grouping;           /* Like `grouping' element (above).  */
  74   char *positive_sign;          /* Sign for positive values.  */
  75   char *negative_sign;          /* Sign for negative values.  */
  76   char int_frac_digits;         /* Int'l fractional digits.  */
  77   char frac_digits;             /* Local fractional digits.  */
  78   /* 1 if currency_symbol precedes a positive value, 0 if succeeds.  */
  79   char p_cs_precedes;
  80   /* 1 iff a space separates currency_symbol from a positive value.  */
  81   char p_sep_by_space;
  82   /* 1 if currency_symbol precedes a negative value, 0 if succeeds.  */
  83   char n_cs_precedes;
  84   /* 1 iff a space separates currency_symbol from a negative value.  */
  85   char n_sep_by_space;
  86   /* Positive and negative sign positions:
  87      0 Parentheses surround the quantity and currency_symbol.
  88      1 The sign string precedes the quantity and currency_symbol.
  89      2 The sign string follows the quantity and currency_symbol.
  90      3 The sign string immediately precedes the currency_symbol.
  91      4 The sign string immediately follows the currency_symbol.  */
  92   char p_sign_posn;
  93   char n_sign_posn;
  94 #ifdef __USE_ISOC99
  95   /* 1 if int_curr_symbol precedes a positive value, 0 if succeeds.  */
  96   char int_p_cs_precedes;
  97   /* 1 iff a space separates int_curr_symbol from a positive value.  */
  98   char int_p_sep_by_space;
  99   /* 1 if int_curr_symbol precedes a negative value, 0 if succeeds.  */
 100   char int_n_cs_precedes;
 101   /* 1 iff a space separates int_curr_symbol from a negative value.  */
 102   char int_n_sep_by_space;
 103   /* Positive and negative sign positions:
 104      0 Parentheses surround the quantity and int_curr_symbol.
 105      1 The sign string precedes the quantity and int_curr_symbol.
 106      2 The sign string follows the quantity and int_curr_symbol.
 107      3 The sign string immediately precedes the int_curr_symbol.
 108      4 The sign string immediately follows the int_curr_symbol.  */
 109   char int_p_sign_posn;
 110   char int_n_sign_posn;
 111 #else
 112   char __int_p_cs_precedes;
 113   char __int_p_sep_by_space;
 114   char __int_n_cs_precedes;
 115   char __int_n_sep_by_space;
 116   char __int_p_sign_posn;
 117   char __int_n_sign_posn;
 118 #endif
 119 };
 120
 121
 122 /* Set and/or return the current locale.  */
 123 extern char *setlocale (int __category, __const char *__locale) __THROW;
 124
 125 /* Return the numeric/monetary information for the current locale.  */
 126 extern struct lconv *localeconv (void) __THROW;
 127
 128 #ifdef  __USE_GNU
 129 /* The concept of one static locale per category is not very well
 130    thought out.  Many applications will need to process its data using
 131    information from several different locales.  Another application is
 132    the implementation of the internationalization handling in the
 133    upcoming ISO C++ standard library.  To support this another set of
 134    the functions using locale data exist which have an additional
 135    argument.
 136
 137    Attention: all these functions are *not* standardized in any form.
 138    This is a proof-of-concept implementation.  */
 139
 140 /* Get locale datatype definition.  */
 141 # include <xlocale.h>
 142
 143 /* Return a reference to a data structure representing a set of locale
 144    datasets.  Unlike for the CATEGORY parameter for `setlocale' the
 145    CATEGORY_MASK parameter here uses a single bit for each category.
 146    I.e., 1 << LC_CTYPE means to load data for this category.  If
 147    BASE is non-null the appropriate category information in the BASE
 148    record is replaced.  */
 149 extern __locale_t __newlocale (int __category_mask, __const char *__locale,
 150                                __locale_t __base) __THROW;
 151
 152 /* Return a duplicate of the set of locale in DATASET.  All usage
 153    counters are increased if necessary.  */
 154 extern __locale_t __duplocale (__locale_t __dataset) __THROW;
 155
 156 /* Free the data associated with a locale dataset previously returned
 157    by a call to `setlocale_r'.  */
 158 extern void __freelocale (__locale_t __dataset) __THROW;
 159 #endif
 160
 161 __END_DECLS
 162
 163 #endif /* locale.h  */