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 /*

  * 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 "stlport_prefix.h"

 #include <wchar.h> /* for mbstate_t */

 #include <stl/c_locale.h>

 struct _Locale_name_hint;

 #if defined (_GNU_SOURCE) && defined (__GLIBC__) && \

     ((__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))

 #  define _STLP_USE_GLIBC2_LOCALIZATION

 #  include <nl_types.h>

 typedef nl_catd nl_catd_type;

 #else

 typedef int nl_catd_type;

 #endif

 /*

  * 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_SIMPLE_NAME 256

 #ifdef __cplusplus

 extern "C" {

 #endif

 /*

  * Typedefs:

  */

 typedef unsigned short int _Locale_mask_t;

 /* Function called during STLport library load phase. Might contain any

  * code necessary to the platform localization layer.

  */

 void _Locale_init(void);

 /* Function called during STLport library unload. Might contain any

  * code necessary to the platform localization layer.

  */

 void _Locale_final(void);

 /* Create a category of the locale with the given name.

  *

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

  * neither be an empty string nor a null pointer.

  *

  * These functions return NULL to indicate failure. Failure reason should be reported

  * using the __err_code pointer.

  */

 struct _Locale_ctype* _Locale_ctype_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_codecvt* _Locale_codecvt_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_numeric* _Locale_numeric_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_time* _Locale_time_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_collate* _Locale_collate_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_monetary* _Locale_monetary_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 struct _Locale_messages* _Locale_messages_create(const char *, struct _Locale_name_hint*, int * /* __err_code */);

 /* Give error reason on failure of one of the _Locale_*_create functions. Available

  * reasons are:

  * 0: No specific error reason has been reported.

  * 1: No platform support for the given facet.

  * 2: Unknown locale name

  * 3: No platform API for localization support.

  * 4: No more memory

  */

 #define _STLP_LOC_UNDEFINED 0

 #define _STLP_LOC_UNSUPPORTED_FACET_CATEGORY 1

 #define _STLP_LOC_UNKNOWN_NAME 2

 #define _STLP_LOC_NO_PLATFORM_SUPPORT 3

 #define _STLP_LOC_NO_MEMORY 4

 /* Release a category of a locale

  *

  * These functions are used to release a category acquired with the

  * according _Locale_*_create() functions.

  */

 void _Locale_ctype_destroy(struct _Locale_ctype *);

 void _Locale_codecvt_destroy(struct _Locale_codecvt *);

 void _Locale_numeric_destroy(struct _Locale_numeric *);

 void _Locale_time_destroy(struct _Locale_time *);

 void _Locale_collate_destroy(struct _Locale_collate *);

 void _Locale_monetary_destroy(struct _Locale_monetary *);

 void _Locale_messages_destroy(struct _Locale_messages *);

 /*

  * 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.

  */

 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);

 /* Retrieve the name of the given category

  *

  * __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. This function can't fail, at worst name is truncated.

  */

 char const* _Locale_ctype_name(const struct _Locale_ctype *, char* __buf);

 char const* _Locale_codecvt_name(const struct _Locale_codecvt *, char* __buf);

 char const* _Locale_numeric_name(const struct _Locale_numeric *, char* __buf);

 char const* _Locale_time_name(const struct _Locale_time *, char* __buf);

 char const* _Locale_collate_name(const struct _Locale_collate *, char*  __buf);

 char const* _Locale_monetary_name(const struct _Locale_monetary *, char* __buf);

 char const* _Locale_messages_name(const struct _Locale_messages *, 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 const* _Locale_extract_ctype_name(const char *cname, char *__buf,

                                        struct _Locale_name_hint* __hint, int *__err_code);

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

                                          struct _Locale_name_hint* __hint, int *__err_code);

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

                                       struct _Locale_name_hint* __hint, int *__err_code);

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

                                          struct _Locale_name_hint* __hint, int *__err_code);

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

                                           struct _Locale_name_hint* __hint, int *__err_code);

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

                                           struct _Locale_name_hint* __hint, int *__err_code);

 /* Functions to improve locale creation process. For some locale API (Win32)

  * you need to find a locale identification from the name which can be a

  * rather expensive operation especially if you do so for all facets of a

  * locale. Those functions can be used to extract from a API dependent facet

  * struct the information necessary to skip this lookup process for other

  * facets creation. If not supported those function should return NULL.

  */

 struct _Locale_name_hint* _Locale_get_ctype_hint(struct _Locale_ctype*);

 struct _Locale_name_hint* _Locale_get_numeric_hint(struct _Locale_numeric*);

 struct _Locale_name_hint* _Locale_get_time_hint(struct _Locale_time*);

 struct _Locale_name_hint* _Locale_get_collate_hint(struct _Locale_collate*);

 struct _Locale_name_hint* _Locale_get_monetary_hint(struct _Locale_monetary*);

 struct _Locale_name_hint* _Locale_get_messages_hint(struct _Locale_messages*);

 /*

  * FUNCTIONS THAT USE CTYPE

  */

 /*

  * Narrow character functions:

  */

 /*

  * 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.

  */

 const _Locale_mask_t * _Locale_ctype_table(struct _Locale_ctype *);

 /*

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

  */

 int _Locale_toupper(struct _Locale_ctype *, int /* c */);

 int _Locale_tolower(struct _Locale_ctype *, int /* c */);

 #ifndef _STLP_NO_WCHAR_T

 /*

  * Wide character functions:

  */

 _Locale_mask_t _WLocale_ctype(struct _Locale_ctype *, wint_t, _Locale_mask_t);

 wint_t _WLocale_tolower(struct _Locale_ctype *, wint_t);

 wint_t _WLocale_toupper(struct _Locale_ctype *, wint_t);

 /*

  * Multibyte functions:

  */

 /*

  * Returns the number of bytes of the longest allowed multibyte

  * character in the current encoding.

  */

 int _WLocale_mb_cur_max(struct _Locale_codecvt *);

 /*

  * Returns the number of bytes of the shortest allowed multibyte

  * character in the current encoding.

  */

 int _WLocale_mb_cur_min(struct _Locale_codecvt *);

 /*

  * Returns 1 if the current multibyte encoding is stateless

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

  */

 int _WLocale_is_stateless(struct _Locale_codecvt *);

 /*

  * 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 _WLocale_mbtowc(struct _Locale_codecvt *,

                        wchar_t * /* to */,

                        const char * /* from */, size_t /* n */,

                        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.

  */

 size_t _WLocale_wctomb(struct _Locale_codecvt *,

                        char *, size_t,

                        const wchar_t,

                        mbstate_t *);

 /*

  * 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.

  */

 size_t _WLocale_unshift(struct _Locale_codecvt *,

                         mbstate_t *,

                         char *, size_t, char **);

 #endif

 /*

  * FUNCTIONS THAT USE COLLATE

  */

 /*

  * 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.

  */

 int _Locale_strcmp(struct _Locale_collate *,

                    const char * /* s1 */, size_t /* n1 */,

                    const char * /* s2 */, size_t /* n2 */);

 #ifndef _STLP_NO_WCHAR_T

 int _WLocale_strcmp(struct _Locale_collate *,

                     const wchar_t * /* s1 */, size_t /* n1 */,

                     const wchar_t * /* s2 */, size_t /* n2 */);

 #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.

 */

 size_t _Locale_strxfrm(struct _Locale_collate *,

                        char * /* s1 */, size_t /* n1 */,

                        const char * /* s2 */, size_t /* n2 */);

 #ifndef _STLP_NO_WCHAR_T

 size_t _WLocale_strxfrm(struct _Locale_collate *,

                         wchar_t * /* s1 */, size_t /* n1 */,

                         const wchar_t * /* s2 */, size_t /* n2 */);

 #endif

 /*

  * FUNCTIONS THAT USE NUMERIC

  */

 /*

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

  * section 7.4.)

  */

 char _Locale_decimal_point(struct _Locale_numeric *);

 char _Locale_thousands_sep(struct _Locale_numeric *);

 const char * _Locale_grouping(struct _Locale_numeric *);

 #ifndef _STLP_NO_WCHAR_T

 wchar_t _WLocale_decimal_point(struct _Locale_numeric *);

 wchar_t _WLocale_thousands_sep(struct _Locale_numeric *);

 #endif

 /*

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

  * appropriate in non-English locales.

  */

 const char * _Locale_true(struct _Locale_numeric *);

 const char * _Locale_false(struct _Locale_numeric *);

 #ifndef _STLP_NO_WCHAR_T

 const wchar_t * _WLocale_true(struct _Locale_numeric *, wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_false(struct _Locale_numeric *, wchar_t* /* buf */, size_t /* bufSize */);

 #endif

 /*

  * FUNCTIONS THAT USE MONETARY

  */

 /*

  * Return the obvious fields of struct lconv.

  */

 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 *);

 #ifndef _STLP_NO_WCHAR_T

 const wchar_t * _WLocale_int_curr_symbol(struct _Locale_monetary *, wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_currency_symbol(struct _Locale_monetary *, wchar_t* /* buf */, size_t /* bufSize */);

 wchar_t         _WLocale_mon_decimal_point(struct _Locale_monetary *);

 wchar_t         _WLocale_mon_thousands_sep(struct _Locale_monetary *);

 const wchar_t * _WLocale_positive_sign(struct _Locale_monetary *, wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_negative_sign(struct _Locale_monetary *, wchar_t* /* buf */, size_t /* bufSize */);

 #endif

 /*

  * FUNCTIONS THAT USE TIME

  */

 /*

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

  */

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

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

 #ifndef _STLP_NO_WCHAR_T

 const wchar_t * _WLocale_full_monthname(struct _Locale_time *, int /* month */,

                                         wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_abbrev_monthname(struct _Locale_time *, int /* month */,

                                           wchar_t* /* buf */, size_t /* bufSize */);

 #endif

 /*

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

  */

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

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

 #ifndef _STLP_NO_WCHAR_T

 const wchar_t * _WLocale_full_dayofweek(struct _Locale_time *, int /* day */,

                                         wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_abbrev_dayofweek(struct _Locale_time *, int /* day */,

                                           wchar_t* /* buf */, size_t /* bufSize */);

 #endif

 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 *);

 #ifndef _STLP_NO_WCHAR_T

 const wchar_t * _WLocale_am_str(struct _Locale_time *,

                                 wchar_t* /* buf */, size_t /* bufSize */);

 const wchar_t * _WLocale_pm_str(struct _Locale_time *,

                                 wchar_t* /* buf */, size_t /* bufSize */);

 #endif

 /*

  * FUNCTIONS THAT USE MESSAGES

  */

 /*

  * Very similar to catopen, except that it uses the given message

  * category to determine which catalog to open.

  */

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

 /* Complementary to _Locale_catopen.

  * The catalog must be a value that was returned by a previous call

  * to _Locale_catopen.

  */

 void _Locale_catclose(struct _Locale_messages*, nl_catd_type);

 /*

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

  * from an opened message catalog.  Returns the supplied default if

  * no such string exists.

  */

 const char * _Locale_catgets(struct _Locale_messages *, nl_catd_type,

                              int, int,const char *);

 #ifdef __cplusplus

 }

 #endif

 #endif /* _STLP_C_LOCALE_IMPL_H */