mirror of
https://github.com/postgres/postgres.git
synced 2026-03-15 23:22:18 -04:00
2ab0796d7a
These functions should take a pg_locale_t, not a collation OID, and should call mbstowcs_l/wcstombs_l where available. Where those functions are not available, temporarily select the correct locale with uselocale(). This change removes the bogus assumption that all locales selectable in a given database have the same wide-character conversion method; in particular, the collate.linux.utf8 regression test now passes with LC_CTYPE=C, so long as the database encoding is UTF8. I decided to move the char2wchar/wchar2char functions out of mbutils.c and into pg_locale.c, because they work on wchar_t not pg_wchar_t and thus don't really belong with the mbutils.c functions. Keeping them where they were would have required importing pg_locale_t into pg_wchar.h somehow, which did not seem like a good plan.
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*-----------------------------------------------------------------------
|
|
*
|
|
* PostgreSQL locale utilities
|
|
*
|
|
* src/include/utils/pg_locale.h
|
|
*
|
|
* Copyright (c) 2002-2011, PostgreSQL Global Development Group
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef _PG_LOCALE_
|
|
#define _PG_LOCALE_
|
|
|
|
#include <locale.h>
|
|
#ifdef LOCALE_T_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);
|
|
extern char *pg_perm_setlocale(int category, const char *locale);
|
|
|
|
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_ */
|