/*

  * © Portions copyright (c) 2006-2007 Nokia Corporation.  All rights reserved.

  * Copyright (c) 1999

  * Silicon Graphics Computer Systems, Inc.

  *

  * Copyright (c) 1999 

  * Boris Fomitchev

  *

  * This material is provided "as is", with absolutely no warranty expressed

  * or implied. Any use is at your own risk.

  *

  * Permission to use or copy this software for any purpose is hereby granted 

  * without fee, provided the above notices are retained on all copies.

  * Permission to modify the code and to distribute modified code is granted,

  * provided the above notices are retained, and a notice that the code was

  * modified is included with the above copyright notice.

  *

  */ 

 /*

  * It is impossible to write the C++ locale library in terms of locales

  * as defined in the C standard.  Instead, we write the C++ locale and I/O

  * library in terms of a low level C-like interface.  This file defines

  * that interface.

  *

  * The low-level locale interface can't be written portably; there

  * must be a version of it for each platform that the C++ library

  * is ported to.  On many systems this interface may be a thin wrapper

  * for existing functionality.

  */

 #ifndef _STLP_C_LOCALE_IMPL_H

 # define _STLP_C_LOCALE_IMPL_H

 # include <stl/c_locale.h>

 // # include <wchar.h>

 # include <stl/_cwchar.h>

 #define _Locale_MAX_SIMPLE_NAME 256

 /*

  * A number: the maximum length of a simple locale name.

  * (i.e. a name like like en_US, as opposed to a name like

  * en_US/de_AT/de_AT/es_MX/en_US/en_US) */

 #define _Locale_MAX_COMPOSITE_NAME 6*(_Locale_MAX_SIMPLE_NAME+3)

 /*

  * Maximum length of a composite locale.

  */

 #ifdef __cplusplus

 _STLP_BEGIN_NAMESPACE

 extern "C" {

 #endif

 /*

  * Typedefs:

  */

 #if defined (__GNUC__) || defined (_KCC) || defined(__ICC)

 typedef unsigned short int _Locale_mask_t;

 #else

 typedef unsigned int _Locale_mask_t;

 #endif

 void * _Locale_ctype_create(const char *);

 void * _Locale_numeric_create(const char *);

 void * _Locale_time_create(const char *);

 void * _Locale_collate_create(const char *);

 void * _Locale_monetary_create(const char *);

 void * _Locale_messages_create(const char *);

 /*

  * The char* argument is a simple locale name.

  * These functions return NULL to indicate failure.

  * The char* argument is a simple locale name, which may not

  * be "".  These functions return NULL to indicate failure.

  */

 const char * _Locale_ctype_default(char * __buf);

 const char * _Locale_numeric_default(char * __buf);

 const char * _Locale_time_default(char * __buf);

 const char * _Locale_collate_default(char * __buf);

 const char * _Locale_monetary_default(char * __buf);

 const char * _Locale_messages_default(char * __buf);

 /*

  * Returns the name of the user's default locale in each

  * category, as a null-terminated string.  A NULL value

  * means the default "C" locale.

  */

 char * _Locale_ctype_name(const void *, char *);

 char * _Locale_numeric_name(const void *, char *);

 char * _Locale_time_name(const void *, char *);

 char * _Locale_collate_name(const void *, char *);

 char * _Locale_monetary_name(const void *, char *);

 char * _Locale_messages_name(const void *, char *);

 /*

  * __buf points to a buffer that can hold at least _Locale_MAX_SIMPLE_NAME

  * characters.  These functions store the name, as a null-terminated

  * string, in __buf.

  */

 void _Locale_ctype_destroy(void *);

 void _Locale_numeric_destroy(void *);

 void _Locale_time_destroy(void *);

 void _Locale_collate_destroy(void *);

 void _Locale_monetary_destroy(void *);

 void _Locale_messages_destroy(void *);

 char * _Locale_extract_ctype_name(const char *cname, char *__buf);

 char * _Locale_extract_numeric_name(const char *cname, char *__buf);

 char * _Locale_extract_time_name(const char *cname, char *__buf);

 char * _Locale_extract_collate_name(const char *cname, char *__buf);

 char * _Locale_extract_monetary_name(const char *cname, char *__buf);

 char * _Locale_extract_messages_name(const char *cname, char *__buf);

 /*

  * cname is a (possibly composite) locale name---i.e. a name that can

  * be passed to setlocale.  _buf points to an array large enough to

  * store at least _Locale_MAX_SIMPLE_NAME characters, and each of these

  * functions extracts the name of a single category, stores it in buf

  * as a null-terminated string, and returns buf.

  */

 char * _Locale_compose_name(char *__buf,

                             const char *__Ctype, const char *__Numeric,

                             const char *__Time, const char *__Collate,

                             const char *__Monetary, const char *__Messages,

                             const char *__DefaultName);

 /*

  * The inputs to this function are six null-terminated strings: the

  * names of a locale's six categories.  Locale names for non-standard

  * categories are taken from __DefaultName.

  * __buf is a pointer to an array large enough to store at least 

  * _Locale_MAX_COMPOSITE_NAME characters.

  * This function constructs a (possibly composite) name describing the

  * locale as a whole, stores that name in buf as a null-terminated

  * string, and returns buf.

  */

 /*

  * FUNCTIONS THAT USE CTYPE

  */

 /*

  * Narrow character functions:

  */

 const _Locale_mask_t * _Locale_ctype_table(struct _Locale_ctype *);

 /*

  * Returns a pointer to the beginning of the ctype table.  The table is

  * at least 257 bytes long; if p is the pointer returned by this

  * function, then p[c] is valid if c is EOF or if p is any value of

  * type unsigned char.

  */

 int _Locale_toupper(struct _Locale_ctype *, int);

 int _Locale_tolower(struct _Locale_ctype *, int);

 /*

  * c is either EOF, or an unsigned char value.

  */

 # ifndef _STLP_NO_WCHAR_T

 /*

  * Wide character functions:

  */

 _Locale_mask_t _Locale_wchar_ctype(struct _Locale_ctype *, wint_t, 

 	_Locale_mask_t);

 wint_t _Locale_wchar_tolower(struct _Locale_ctype *, wint_t);

 wint_t _Locale_wchar_toupper(struct _Locale_ctype *, wint_t);

 # endif

 # if !defined ( _STLP_NO_MBSTATE_T )

 /*

  * Multibyte functions:

  */

 int _Locale_mb_cur_max (struct _Locale_ctype *);

 /*

  * Returns the number of bytes of the longest allowed multibyte

  * character in the current encoding.

  */

 int _Locale_mb_cur_min (struct _Locale_ctype *);

 /*

  * Returns the number of bytes of the shortest allowed multibyte

  * character in the current encoding.

  */

 int _Locale_is_stateless (struct _Locale_ctype *);

 /*

  * Returns 1 if the current multibyte encoding is stateless

  * and does not require the use of an mbstate_t value.

  */

 # ifndef _STLP_NO_WCHAR_T

 wint_t _Locale_btowc(struct _Locale_ctype *, int);

 int _Locale_wctob(struct _Locale_ctype *, wint_t);

 /*

  * Just like btowc and wctob, from 4.6.5.1 of the C standard, Normative

  * Addendum 1.  (And just like widen/narrow, from clause 22 of the C++

  * standard.)

  */

 size_t _Locale_mbtowc(struct _Locale_ctype *,

                       wchar_t *,size_t,

                       const char *, size_t, int * chars_write,

                       mbstate_t *);

 /*

  * Almost identical to mbrtowc, from 4.6.5.3.2 of NA1.  The only

  * important difference is that mbrtowc treats null wide characters

  * as special, and we don't.  Specifically: examines the characters

  * in [from, from + n), extracts a single wide character, and stores

  * it in *to.  Modifies shift_state if appropriate.  The return value,

  * which is always positive, is the number of characters extracted from

  * the input sequence.  Return value is (size_t) -1 if there was an

  * encoding error in the input sequence, and (size_t) -2 if

  * [from, from + n) is correct but not complete.  None of the pointer

  * arguments may be null pointers.

  */

 size_t _Locale_wctomb(struct _Locale_ctype *,

                       char *, size_t,

                       const wchar_t,

                       mbstate_t *);

 /*

  * Again, very similar to wcrtomb.  The differences are that (1) it

  * doesn't treat null characters as special; and (2) it stores at most

  * n characters.  Converts c to a multibyte sequence, stores that

  * sequence in the array 'to', and returns the length of the sequence.

  * Modifies shift_state if appropriate.  The return value is (size_t) -1

  * if c is not a valid wide character, and (size_t) -2 if the length of

  * the multibyte character sequence is greater than n.

  */

 # endif

 size_t _Locale_unshift(struct _Locale_ctype *,

                        mbstate_t *,

                        char *, size_t, char **);

 /*

  * Inserts whatever characters are necessary to restore st to an

  * initial shift state.  Sets *next to buf + m, where m is the number

  * of characters inserted.  (0 <= m <= n.)  Returns m to indicate

  * success, (size_t) -1 to indicate error, (size_t) -2 to indicate

  * partial success (more than n characters needed).  For success or partial

  * success, sets *next to buf + m.

  */

 # endif /*  _STLP_NO_MBSTATE_T */

 /*

  * FUNCTIONS THAT USE COLLATE

  */

 int _Locale_strcmp(struct _Locale_collate *,

                    const char *, size_t,

                    const char *, size_t);

 # ifndef _STLP_NO_WCHAR_T

 int _Locale_strwcmp(struct _Locale_collate *,

                     const wchar_t *, size_t,

                     const wchar_t *, size_t);

 # endif

 /*

  * Compares the two sequences [s1, s1 + n1) and [s2, s2 + n2).  Neither

  * sequence is assumed to be null-terminated, and null characters

  * aren't special.  If the two sequences are the same up through

  * min(n1, n2), then the sequence that compares less is whichever one

  * is shorter.

  */

 size_t _Locale_strxfrm(struct _Locale_collate *,

                        char *, size_t,

                        const char *, size_t);

 # ifndef _STLP_NO_WCHAR_T

 size_t _Locale_strwxfrm(struct _Locale_collate *,

                         wchar_t *, size_t,

                         const wchar_t *, size_t);

 # endif

 /*

  * Creates a transformed version of the string [s2, s2 + n2).  The

  * string may contain embedded null characters; nulls aren't special.

  * The transformed string begins at s1, and contains at most n1

  * characters.  The return value is the length of the transformed

  * string.  If the return value is greater than n1 then this is an

  * error condition: it indicates that there wasn't enough space.  In

  * that case, the contents of [s1, s1 + n1) is unspecified.

 */

 /*

  * FUNCTIONS THAT USE NUMERIC

  */

 char _Locale_decimal_point(struct _Locale_numeric *);

 char _Locale_thousands_sep(struct _Locale_numeric *);

 const char * _Locale_grouping(struct _Locale_numeric *);

 /*

  * Equivalent to the first three fields in struct lconv.  (C standard,

  * section 7.4.)

  */

 const char * _Locale_true(struct _Locale_numeric *);

 const char * _Locale_false(struct _Locale_numeric *);

 /*

  * Return "true" and "false" in English locales, and something

  * appropriate in non-English locales.

  */

 /*

  * FUNCTIONS THAT USE MONETARY

  */

 const char * _Locale_int_curr_symbol(struct _Locale_monetary *);

 const char * _Locale_currency_symbol(struct _Locale_monetary *);

 char         _Locale_mon_decimal_point(struct _Locale_monetary *);

 char         _Locale_mon_thousands_sep(struct _Locale_monetary *);

 const char * _Locale_mon_grouping(struct _Locale_monetary *);

 const char * _Locale_positive_sign(struct _Locale_monetary *);

 const char * _Locale_negative_sign(struct _Locale_monetary *);

 char         _Locale_int_frac_digits(struct _Locale_monetary *);

 char         _Locale_frac_digits(struct _Locale_monetary *);

 int          _Locale_p_cs_precedes(struct _Locale_monetary *);

 int          _Locale_p_sep_by_space(struct _Locale_monetary *);

 int          _Locale_p_sign_posn(struct _Locale_monetary *);

 int          _Locale_n_cs_precedes(struct _Locale_monetary *);

 int          _Locale_n_sep_by_space(struct _Locale_monetary *);

 int          _Locale_n_sign_posn(struct _Locale_monetary *);

 /*

  * Return the obvious fields of struct lconv.

  */

 /*

  * FUNCTIONS THAT USE TIME

  */

 const char * _Locale_full_monthname(struct _Locale_time *, int);

 const char * _Locale_abbrev_monthname(struct _Locale_time *, int);

 /*

  * month is in the range [0, 12).

  */

 const char * _Locale_full_dayofweek(struct _Locale_time *, int);

 const char * _Locale_abbrev_dayofweek(struct _Locale_time *, int);

 /*

  * day is in the range [0, 7).  Sunday is 0.

  */

 const char * _Locale_d_t_fmt(struct _Locale_time *);

 const char * _Locale_d_fmt(struct _Locale_time *);

 const char * _Locale_t_fmt(struct _Locale_time *);

 const char * _Locale_long_d_t_fmt(struct _Locale_time*);

 const char * _Locale_long_d_fmt(struct _Locale_time*);

 const char * _Locale_am_str(struct _Locale_time *);

 const char * _Locale_pm_str(struct _Locale_time *);

 const char * _Locale_t_fmt_ampm(struct _Locale_time *);

 /*

  * FUNCTIONS THAT USE MESSAGES

  */

 int _Locale_catopen(struct _Locale_messages*, const char*);

 /*

  * Very similar to catopen, except that it uses L to determine

  * which catalog to open.

  */

 void _Locale_catclose(struct _Locale_messages*, int);

 /*

  * catalog is a value that was returned by a previous call to

  * _Locale_catopen

  */

 const char * _Locale_catgets(struct _Locale_messages *, int,

                              int, int,const char *);

 /*

  * Returns a string, identified by a set index and a message index,

  * from an opened message catalog.  Returns default if no such

  * string exists.

  */

 # ifdef __cplusplus

 }

 _STLP_END_NAMESPACE

 # endif

 # endif /* _STLP_C_LOCALE_IMPL_H */