/****************************************************************************
 * include/locale.h
 *
 *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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
 * COPYRIGHT OWNER 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.
 *
 ****************************************************************************/

#ifndef __INCLUDE_LOCALE_H
#define __INCLUDE_LOCALE_H

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>
#include <nuttx/compiler.h>

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

#define LC_ALL           0
#define LC_COLLATE       1
#define LC_CTYPE         2
#define LC_MONETARY      3
#define LC_NUMERIC       4
#define LC_TIME          5
#define LC_MESSAGES      6

#define LC_COLLATE_MASK  (1 << LC_COLLATE)
#define LC_CTYPE_MASK    (1 << LC_CTYPE)
#define LC_MONETARY_MASK (1 << LC_MONETARY)
#define LC_NUMERIC_MASK  (1 << LC_NUMERIC)
#define LC_TIME_MASK     (1 << LC_TIME)
#define LC_MESSAGES_MASK (1 << LC_MESSAGES)

#define LC_ALL_MASK      (LC_COLLATE_MASK  | LC_CTYPE_MASK   | \
                          LC_MONETARY_MASK | LC_NUMERIC_MASK | \
                          LC_TIME_MASK     | LC_MESSAGES_MASK)

/****************************************************************************
 * Public Type Definitions
 ****************************************************************************/

/* OpenGroup.org: "The locale.h header shall define the lconv structure,
 *  which shall include at least the following members. ..."
 */

struct lconv
{
  FAR char *decimal_point;
  FAR char *thousands_sep;
  FAR char *grouping;
  FAR char *int_curr_symbol;
  FAR char *currency_symbol;
  FAR char *mon_decimal_point;
  FAR char *mon_thousands_sep;
  FAR char *mon_grouping;
  FAR char *positive_sign;
  FAR char *negative_sign;
  FAR char int_frac_digits;
  FAR char frac_digits;
  FAR char p_cs_precedes;
  FAR char p_sep_by_space;
  FAR char n_cs_precedes;
  FAR char n_sep_by_space;
  FAR char p_sign_posn;
  FAR char n_sign_posn;
  FAR char int_n_cs_precedes;
  FAR char int_n_sep_by_space;
  FAR char int_n_sign_posn;
  FAR char int_p_cs_precedes;
  FAR char int_p_sep_by_space;
  FAR char int_p_sign_posn;
};

/* OpenGroup.org:  The locale.h header shall define the locale_t type,
 * representing a locale object
 */

typedef FAR void *locale_t;

/****************************************************************************
 * Public Function Prototypes
 ****************************************************************************/

#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

FAR char *setlocale(int category, FAR const char *locale);
FAR struct lconv *localeconv(void);

locale_t newlocale(int category_mask, FAR const char *locale, locale_t base);
locale_t duplocale(locale_t locobj);
void freelocale(locale_t locobj);

locale_t uselocale(locale_t newloc);

#undef EXTERN
#ifdef __cplusplus
}
#endif

#endif /* __INCLUDE_LOCALE_H */