locale/locale.h

   1 /* Copyright (C) 1991,1992,1995-2002,2007 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 __BEGIN_NAMESPACE_STD
  52
  53 /* Structure giving information about numeric and monetary notation.  */
  54 struct lconv
  55 {
  56   /* Numeric (non-monetary) information.  */
  57
  58   char *decimal_point;          /* Decimal point character.  */
  59   char *thousands_sep;          /* Thousands separator.  */
  60   /* Each element is the number of digits in each group;
  61      elements with higher indices are farther left.
  62      An element with value CHAR_MAX means that no further grouping is done.
  63      An element with value 0 means that the previous element is used
  64      for all groups farther left.  */
  65   char *grouping;
  66
  67   /* Monetary information.  */
  68
  69   /* First three chars are a currency symbol from ISO 4217.
  70      Fourth char is the separator.  Fifth char is '\0'.  */
  71   char *int_curr_symbol;
  72   char *currency_symbol;        /* Local currency symbol.  */
  73   char *mon_decimal_point;      /* Decimal point character.  */
  74   char *mon_thousands_sep;      /* Thousands separator.  */
  75   char *mon_grouping;           /* Like `grouping' element (above).  */
  76   char *positive_sign;          /* Sign for positive values.  */
  77   char *negative_sign;          /* Sign for negative values.  */
  78   char int_frac_digits;         /* Int'l fractional digits.  */
  79   char frac_digits;             /* Local fractional digits.  */
  80   /* 1 if currency_symbol precedes a positive value, 0 if succeeds.  */
  81   char p_cs_precedes;
  82   /* 1 iff a space separates currency_symbol from a positive value.  */
  83   char p_sep_by_space;
  84   /* 1 if currency_symbol precedes a negative value, 0 if succeeds.  */
  85   char n_cs_precedes;
  86   /* 1 iff a space separates currency_symbol from a negative value.  */
  87   char n_sep_by_space;
  88   /* Positive and negative sign positions:
  89      0 Parentheses surround the quantity and currency_symbol.
  90      1 The sign string precedes the quantity and currency_symbol.
  91      2 The sign string follows the quantity and currency_symbol.
  92      3 The sign string immediately precedes the currency_symbol.
  93      4 The sign string immediately follows the currency_symbol.  */
  94   char p_sign_posn;
  95   char n_sign_posn;
  96 #ifdef __USE_ISOC99
  97   /* 1 if int_curr_symbol precedes a positive value, 0 if succeeds.  */
  98   char int_p_cs_precedes;
  99   /* 1 iff a space separates int_curr_symbol from a positive value.  */
 100   char int_p_sep_by_space;
 101   /* 1 if int_curr_symbol precedes a negative value, 0 if succeeds.  */
 102   char int_n_cs_precedes;
 103   /* 1 iff a space separates int_curr_symbol from a negative value.  */
 104   char int_n_sep_by_space;
 105   /* Positive and negative sign positions:
 106      0 Parentheses surround the quantity and int_curr_symbol.
 107      1 The sign string precedes the quantity and int_curr_symbol.
 108      2 The sign string follows the quantity and int_curr_symbol.
 109      3 The sign string immediately precedes the int_curr_symbol.
 110      4 The sign string immediately follows the int_curr_symbol.  */
 111   char int_p_sign_posn;
 112   char int_n_sign_posn;
 113 #else
 114   char __int_p_cs_precedes;
 115   char __int_p_sep_by_space;
 116   char __int_n_cs_precedes;
 117   char __int_n_sep_by_space;
 118   char __int_p_sign_posn;
 119   char __int_n_sign_posn;
 120 #endif
 121 };
 122
 123
 124 /* Set and/or return the current locale.  */
 125 extern char *setlocale (int __category, __const char *__locale) __THROW;
 126
 127 /* Return the numeric/monetary information for the current locale.  */
 128 extern struct lconv *localeconv (void) __THROW;
 129
 130 __END_NAMESPACE_STD
 131
 132
 133 #ifdef  __USE_GNU
 134 /* The concept of one static locale per category is not very well
 135    thought out.  Many applications will need to process its data using
 136    information from several different locales.  Another application is
 137    the implementation of the internationalization handling in the
 138    upcoming ISO C++ standard library.  To support this another set of
 139    the functions using locale data exist which have an additional
 140    argument.
 141
 142    Attention: all these functions are *not* standardized in any form.
 143    This is a proof-of-concept implementation.  */
 144
 145 /* Get locale datatype definition.  */
 146 # include <xlocale.h>
 147
 148 typedef __locale_t locale_t;
 149
 150 /* Return a reference to a data structure representing a set of locale
 151    datasets.  Unlike for the CATEGORY parameter for `setlocale' the
 152    CATEGORY_MASK parameter here uses a single bit for each category,
 153    made by OR'ing together LC_*_MASK bits above.  */
 154 extern __locale_t newlocale (int __category_mask, __const char *__locale,
 155                              __locale_t __base) __THROW;
 156
 157 /* These are the bits that can be set in the CATEGORY_MASK argument to
 158    `newlocale'.  In the GNU implementation, LC_FOO_MASK has the value
 159    of (1 << LC_FOO), but this is not a part of the interface that
 160    callers can assume will be true.  */
 161 # define LC_CTYPE_MASK          (1 << __LC_CTYPE)
 162 # define LC_NUMERIC_MASK        (1 << __LC_NUMERIC)
 163 # define LC_TIME_MASK           (1 << __LC_TIME)
 164 # define LC_COLLATE_MASK        (1 << __LC_COLLATE)
 165 # define LC_MONETARY_MASK       (1 << __LC_MONETARY)
 166 # define LC_MESSAGES_MASK       (1 << __LC_MESSAGES)
 167 # define LC_PAPER_MASK          (1 << __LC_PAPER)
 168 # define LC_NAME_MASK           (1 << __LC_NAME)
 169 # define LC_ADDRESS_MASK        (1 << __LC_ADDRESS)
 170 # define LC_TELEPHONE_MASK      (1 << __LC_TELEPHONE)
 171 # define LC_MEASUREMENT_MASK    (1 << __LC_MEASUREMENT)
 172 # define LC_IDENTIFICATION_MASK (1 << __LC_IDENTIFICATION)
 173 # define LC_ALL_MASK            (LC_CTYPE_MASK \
 174                                  | LC_NUMERIC_MASK \
 175                                  | LC_TIME_MASK \
 176                                  | LC_COLLATE_MASK \
 177                                  | LC_MONETARY_MASK \
 178                                  | LC_MESSAGES_MASK \
 179                                  | LC_PAPER_MASK \
 180                                  | LC_NAME_MASK \
 181                                  | LC_ADDRESS_MASK \
 182                                  | LC_TELEPHONE_MASK \
 183                                  | LC_MEASUREMENT_MASK \
 184                                  | LC_IDENTIFICATION_MASK \
 185                                  )
 186
 187 /* Return a duplicate of the set of locale in DATASET.  All usage
 188    counters are increased if necessary.  */
 189 extern __locale_t duplocale (__locale_t __dataset) __THROW;
 190
 191 /* Free the data associated with a locale dataset previously returned
 192    by a call to `setlocale_r'.  */
 193 extern void freelocale (__locale_t __dataset) __THROW;
 194
 195 /* Switch the current thread's locale to DATASET.
 196    If DATASET is null, instead just return the current setting.
 197    The special value LC_GLOBAL_LOCALE is the initial setting
 198    for all threads and can also be installed any time, meaning
 199    the thread uses the global settings controlled by `setlocale'.  */
 200 extern __locale_t uselocale (__locale_t __dataset) __THROW;
 201
 202 /* This value can be passed to `uselocale' and may be returned by it.
 203    Passing this value to any other function has undefined behavior.  */
 204 # define LC_GLOBAL_LOCALE       ((__locale_t) -1L)
 205
 206 #endif
 207
 208 __END_DECLS
 209
 210 #endif /* locale.h  */