source: trunk/libs/newlib/src/newlib/libc/locale/setlocale.h @ 444

/*-
 * Copyright (C) 1997 by Andrey A. Chernov, Moscow, Russia.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/lib/libc/locale/setlocale.h,v 1.4 2001/12/20 18:28:52 phantom Exp $
 */

#ifndef _SETLOCALE_H_
#define _SETLOCALE_H_

#include <_ansi.h>
#include <sys/cdefs.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <wchar.h>
#include <locale.h>

__BEGIN_DECLS

#define ENCODING_LEN 31
#define CATEGORY_LEN 11
#define _LC_LAST      7

#ifdef __CYGWIN__
struct lc_collate_T
{
  __uint32_t     lcid;
  int          (*mbtowc) (struct _reent *, wchar_t *, const char *, size_t,
                          mbstate_t *);
  char           codeset[ENCODING_LEN + 1];
};
extern const struct lc_collate_T _C_collate_locale;
#endif

struct lc_ctype_T
{
  const char    *codeset;        /* codeset for mbtowc conversion */
  const char    *mb_cur_max;
#ifdef __HAVE_LOCALE_INFO_EXTENDED__
  const char    *outdigits[10];
  const wchar_t *woutdigits[10];
#endif
};
extern const struct lc_ctype_T _C_ctype_locale;

struct lc_monetary_T
{
  const char    *int_curr_symbol;
  const char    *currency_symbol;
  const char    *mon_decimal_point;
  const char    *mon_thousands_sep;
  const char    *mon_grouping;
  const char    *positive_sign;
  const char    *negative_sign;
  const char    *int_frac_digits;
  const char    *frac_digits;
  const char    *p_cs_precedes;
  const char    *p_sep_by_space;
  const char    *n_cs_precedes;
  const char    *n_sep_by_space;
  const char    *p_sign_posn;
  const char    *n_sign_posn;
#ifdef __HAVE_LOCALE_INFO_EXTENDED__
  const char    *int_p_cs_precedes;
  const char    *int_p_sep_by_space;
  const char    *int_n_cs_precedes;
  const char    *int_n_sep_by_space;
  const char    *int_p_sign_posn;
  const char    *int_n_sign_posn;
  const char    *codeset;        /* codeset for mbtowc conversion */
  const wchar_t *wint_curr_symbol;
  const wchar_t *wcurrency_symbol;
  const wchar_t *wmon_decimal_point;
  const wchar_t *wmon_thousands_sep;
  const wchar_t *wpositive_sign;
  const wchar_t *wnegative_sign;
#endif
};
extern const struct lc_monetary_T _C_monetary_locale;

struct lc_numeric_T
{
  const char    *decimal_point;
  const char    *thousands_sep;
  const char    *grouping;
#ifdef __HAVE_LOCALE_INFO_EXTENDED__
  const char    *codeset;        /* codeset for mbtowc conversion */
  const wchar_t *wdecimal_point;
  const wchar_t *wthousands_sep;
#endif
};
extern const struct lc_numeric_T _C_numeric_locale;

struct lc_time_T
{
  const char    *mon[12];
  const char    *month[12];
  const char    *wday[7];
  const char    *weekday[7];
  const char    *X_fmt;
  const char    *x_fmt;
  const char    *c_fmt;
  const char    *am_pm[2];
  const char    *date_fmt;
  const char    *alt_month[12]; /* unused */
  const char    *md_order;
  const char    *ampm_fmt;
  const char    *era;
  const char    *era_d_fmt;
  const char    *era_d_t_fmt;
  const char    *era_t_fmt;
  const char    *alt_digits;
#ifdef __HAVE_LOCALE_INFO_EXTENDED__
  const char    *codeset;        /* codeset for mbtowc conversion */
  const wchar_t *wmon[12];
  const wchar_t *wmonth[12];
  const wchar_t *wwday[7];
  const wchar_t *wweekday[7];
  const wchar_t *wX_fmt;
  const wchar_t *wx_fmt;
  const wchar_t *wc_fmt;
  const wchar_t *wam_pm[2];
  const wchar_t *wdate_fmt;
  const wchar_t *wampm_fmt;
  const wchar_t *wera;
  const wchar_t *wera_d_fmt;
  const wchar_t *wera_d_t_fmt;
  const wchar_t *wera_t_fmt;
  const wchar_t *walt_digits;
#endif
};
extern const struct lc_time_T _C_time_locale;

struct  lc_messages_T
{
  const char    *yesexpr;
  const char    *noexpr;
  const char    *yesstr;
  const char    *nostr;
#ifdef __HAVE_LOCALE_INFO_EXTENDED__
  const char    *codeset;        /* codeset for mbtowc conversion */
  const wchar_t *wyesexpr;
  const wchar_t *wnoexpr;
  const wchar_t *wyesstr;
  const wchar_t *wnostr;
#endif
};
extern const struct lc_messages_T _C_messages_locale;

struct __lc_cats
{
  const void    *ptr;
  char          *buf;
};

struct __locale_t
{
  char                   categories[_LC_LAST][ENCODING_LEN + 1];
  int                   (*wctomb) (struct _reent *, char *, wchar_t,
                                   mbstate_t *);
  int                   (*mbtowc) (struct _reent *, wchar_t *,
                                   const char *, size_t, mbstate_t *);
  int                    cjk_lang;
  char                  *ctype_ptr;
  struct lconv           lconv;
#ifndef __HAVE_LOCALE_INFO__
  char                   mb_cur_max[2];
  char                   ctype_codeset[ENCODING_LEN + 1];
  char                   message_codeset[ENCODING_LEN + 1];
#else
  struct __lc_cats       lc_cat[_LC_LAST];
#endif
};

#ifdef _MB_CAPABLE
extern char *__loadlocale (struct __locale_t *, int, const char *);
extern const char *__get_locale_env(struct _reent *, int);
#endif /* _MB_CAPABLE */

extern struct lconv *__localeconv_l (struct __locale_t *locale);

extern size_t _wcsnrtombs_l (struct _reent *, char *, const wchar_t **,
                             size_t, size_t, mbstate_t *, struct __locale_t *);

/* In POSIX terms the global locale is the process-wide locale.  Use this
   function to always refer to the global locale. */
_ELIDABLE_INLINE struct __locale_t *
__get_global_locale ()
{
  extern struct __locale_t __global_locale;
  return &__global_locale;
}

/* Per REENT locale.  This is newlib-internal. */
_ELIDABLE_INLINE struct __locale_t *
__get_locale_r (struct _reent *r)
{
  return r->_locale;
}

/* In POSIX terms the current locale is the locale used by all functions
   using locale info without providing a locale as parameter (*_l functions).
   The current locale is either the locale of the current thread, if the
   thread called uselocale, or the global locale if not. */
_ELIDABLE_INLINE struct __locale_t *
__get_current_locale (void)
{
  return _REENT->_locale ?: __get_global_locale ();
}

/* Only access fixed "C" locale using this function.  Fake for !_MB_CAPABLE
   targets by returning ptr to globale locale. */
_ELIDABLE_INLINE struct __locale_t *
__get_C_locale (void)
{
#ifndef _MB_CAPABLE
  return __get_global_locale ();
#else
  extern const struct __locale_t __C_locale;
  return (struct __locale_t *) &__C_locale;
#endif
}

#ifdef __CYGWIN__
_ELIDABLE_INLINE const struct lc_collate_T *
__get_collate_locale (struct __locale_t *locale)
{
  return (const struct lc_collate_T *) locale->lc_cat[LC_COLLATE].ptr;
}

_ELIDABLE_INLINE const struct lc_collate_T *
__get_current_collate_locale (void)
{
  return (const struct lc_collate_T *)
         __get_current_locale ()->lc_cat[LC_COLLATE].ptr;
}
#endif

#ifdef __HAVE_LOCALE_INFO__
_ELIDABLE_INLINE const struct lc_ctype_T *
__get_ctype_locale (struct __locale_t *locale)
{
  return (const struct lc_ctype_T *) (locale)->lc_cat[LC_CTYPE].ptr;
}

_ELIDABLE_INLINE const struct lc_ctype_T *
__get_current_ctype_locale (void)
{
  return (const struct lc_ctype_T *)
         __get_current_locale ()->lc_cat[LC_CTYPE].ptr;
}
#endif

_ELIDABLE_INLINE int
__locale_mb_cur_max_l (struct __locale_t *locale)
{
#ifdef __HAVE_LOCALE_INFO__
  return __get_ctype_locale (locale)->mb_cur_max[0];
#else
  return locale->mb_cur_max[0];
#endif
}

#ifdef __HAVE_LOCALE_INFO__
_ELIDABLE_INLINE const struct lc_monetary_T *
__get_monetary_locale (struct __locale_t *locale)
{
  return (const struct lc_monetary_T *) (locale)->lc_cat[LC_MONETARY].ptr;
}

_ELIDABLE_INLINE const struct lc_monetary_T *
__get_current_monetary_locale (void)
{
  return (const struct lc_monetary_T *)
         __get_current_locale ()->lc_cat[LC_MONETARY].ptr;
}

_ELIDABLE_INLINE const struct lc_numeric_T *
__get_numeric_locale (struct __locale_t *locale)
{
  return (const struct lc_numeric_T *) (locale)->lc_cat[LC_NUMERIC].ptr;
}

_ELIDABLE_INLINE const struct lc_numeric_T *
__get_current_numeric_locale (void)
{
  return (const struct lc_numeric_T *)
         __get_current_locale ()->lc_cat[LC_NUMERIC].ptr;
}

_ELIDABLE_INLINE const struct lc_time_T *
__get_time_locale (struct __locale_t *locale)
{
  return (const struct lc_time_T *) (locale)->lc_cat[LC_TIME].ptr;
}

_ELIDABLE_INLINE const struct lc_time_T *
__get_current_time_locale (void)
{
  return (const struct lc_time_T *)
         __get_current_locale ()->lc_cat[LC_TIME].ptr;
}

_ELIDABLE_INLINE const struct lc_messages_T *
__get_messages_locale (struct __locale_t *locale)
{
  return (const struct lc_messages_T *) (locale)->lc_cat[LC_MESSAGES].ptr;
}

_ELIDABLE_INLINE const struct lc_messages_T *
__get_current_messages_locale (void)
{
  return (const struct lc_messages_T *)
         __get_current_locale ()->lc_cat[LC_MESSAGES].ptr;
}
#else /* ! __HAVE_LOCALE_INFO__ */
_ELIDABLE_INLINE const struct lc_monetary_T *
__get_monetary_locale (struct __locale_t *locale)
{
  return &_C_monetary_locale;
}

_ELIDABLE_INLINE const struct lc_monetary_T *
__get_current_monetary_locale (void)
{
  return &_C_monetary_locale;
}

_ELIDABLE_INLINE const struct lc_numeric_T *
__get_numeric_locale (struct __locale_t *locale)
{
  return &_C_numeric_locale;
}

_ELIDABLE_INLINE const struct lc_numeric_T *
__get_current_numeric_locale (void)
{
  return &_C_numeric_locale;
}

_ELIDABLE_INLINE const struct lc_time_T *
__get_time_locale (struct __locale_t *locale)
{
  return &_C_time_locale;
}

_ELIDABLE_INLINE const struct lc_time_T *
__get_current_time_locale (void)
{
  return &_C_time_locale;
}

_ELIDABLE_INLINE const struct lc_messages_T *
__get_messages_locale (struct __locale_t *locale)
{
  return &_C_messages_locale;
}

_ELIDABLE_INLINE const struct lc_messages_T *
__get_current_messages_locale (void)
{
  return &_C_messages_locale;
}
#endif /* !__HAVE_LOCALE_INFO__ */

_ELIDABLE_INLINE const char *
__locale_charset (struct __locale_t *locale)
{
#ifdef __HAVE_LOCALE_INFO__
  return __get_ctype_locale (locale)->codeset;
#else
  return locale->ctype_codeset;
#endif
}

_ELIDABLE_INLINE const char *
__current_locale_charset (void)
{
#ifdef __HAVE_LOCALE_INFO__
  return __get_current_ctype_locale ()->codeset;
#else
  return __get_current_locale ()->ctype_codeset;
#endif
}

_ELIDABLE_INLINE const char *
__locale_msgcharset (void)
{
#ifdef __HAVE_LOCALE_INFO__
  return (char *) __get_current_messages_locale ()->codeset;
#else
  return (char *) __get_current_locale ()->message_codeset;
#endif
}

_ELIDABLE_INLINE int
__locale_cjk_lang (void)
{
  return __get_current_locale ()->cjk_lang;
}

int __ctype_load_locale (struct __locale_t *, const char *, void *,
                         const char *, int);
int __monetary_load_locale (struct __locale_t *, const char *, void *,
                            const char *);
int __numeric_load_locale (struct __locale_t *, const char *, void *,
                           const char *);
int __time_load_locale (struct __locale_t *, const char *, void *,
                        const char *);
int __messages_load_locale (struct __locale_t *, const char *, void *,
                            const char *);
#ifdef __CYGWIN__
int __collate_load_locale (struct __locale_t *, const char *, void *,
                           const char *);

extern void __set_charset_from_locale (const char *locale, char *charset);
extern char *__set_locale_from_locale_alias (const char *, char *);
#endif

__END_DECLS

#endif /* !_SETLOCALE_H_ */