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/*-----------------------------------------------------------------------
*
* PostgreSQL locale utilities
*
* src/include/utils/pg_locale.h
*
* Copyright (c) 2002-2015, PostgreSQL Global Development Group
*
*-----------------------------------------------------------------------
*/
#ifndef _PG_LOCALE_
#define _PG_LOCALE_
#include <locale.h>
#if defined(LOCALE_T_IN_XLOCALE) || defined(WCSTOMBS_L_IN_XLOCALE)
#include <xlocale.h>
#endif
#include "utils/guc.h"
/* GUC settings */
extern char *locale_messages;
extern char *locale_monetary;
extern char *locale_numeric;
extern char *locale_time;
/* lc_time localization cache */
extern char *localized_abbrev_days[];
extern char *localized_full_days[];
extern char *localized_abbrev_months[];
extern char *localized_full_months[];
extern bool check_locale_messages(char **newval, void **extra, GucSource source);
extern void assign_locale_messages(const char *newval, void *extra);
extern bool check_locale_monetary(char **newval, void **extra, GucSource source);
extern void assign_locale_monetary(const char *newval, void *extra);
extern bool check_locale_numeric(char **newval, void **extra, GucSource source);
extern void assign_locale_numeric(const char *newval, void *extra);
extern bool check_locale_time(char **newval, void **extra, GucSource source);
extern void assign_locale_time(const char *newval, void *extra);
extern bool check_locale(int category, const char *locale, char **canonname);
extern char *pg_perm_setlocale(int category, const char *locale);
extern void check_strxfrm_bug(void);
extern bool lc_collate_is_c(Oid collation);
extern bool lc_ctype_is_c(Oid collation);
/*
* Return the POSIX lconv struct (contains number/money formatting
* information) with locale information for all categories.
*/
extern struct lconv *PGLC_localeconv(void);
extern void cache_locale_time(void);
/*
* We define our own wrapper around locale_t so we can keep the same
* function signatures for all builds, while not having to create a
* fake version of the standard type locale_t in the global namespace.
* The fake version of pg_locale_t can be checked for truth; that's
* about all it will be needed for.
*/
#ifdef HAVE_LOCALE_T
typedef locale_t pg_locale_t;
#else
typedef int pg_locale_t;
#endif
extern pg_locale_t pg_newlocale_from_collation(Oid collid);
/* These functions convert from/to libc's wchar_t, *not* pg_wchar_t */
#ifdef USE_WIDE_UPPER_LOWER
extern size_t wchar2char(char *to, const wchar_t *from, size_t tolen,
pg_locale_t locale);
extern size_t char2wchar(wchar_t *to, size_t tolen,
const char *from, size_t fromlen, pg_locale_t locale);
#endif
#endif /* _PG_LOCALE_ */
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