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d6391b03b3
Various bugs can cause crashes, so don't use that function before ICU 53. It will fall back to the code path used for other encodings. Since we now tie the function availability to an ICU version, we don't need the configure test anymore. That also resolves the issue that the test result was previously hardcoded for Windows. researched by Daniel Verite <daniel@manitou-mail.org>, Peter Geoghegan <pg@bowt.ie>, Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/f1438ec6-22aa-4029-9a3b-26f79d330e72%40manitou-mail.org
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*-----------------------------------------------------------------------
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*
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* PostgreSQL locale utilities
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*
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* src/include/utils/pg_locale.h
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*
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* Copyright (c) 2002-2017, PostgreSQL Global Development Group
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*
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*-----------------------------------------------------------------------
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*/
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#ifndef _PG_LOCALE_
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#define _PG_LOCALE_
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#if defined(LOCALE_T_IN_XLOCALE) || defined(WCSTOMBS_L_IN_XLOCALE)
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#include <xlocale.h>
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#endif
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#ifdef USE_ICU
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#include <unicode/ucol.h>
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#endif
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#include "utils/guc.h"
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#ifdef USE_ICU
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/*
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* ucol_strcollUTF8() was introduced in ICU 50, but it is buggy before ICU 53.
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* (see
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* <https://www.postgresql.org/message-id/flat/f1438ec6-22aa-4029-9a3b-26f79d330e72%40manitou-mail.org>)
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*/
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#if U_ICU_VERSION_MAJOR_NUM >= 53
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#define HAVE_UCOL_STRCOLLUTF8 1
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#else
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#undef HAVE_UCOL_STRCOLLUTF8
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#endif
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#endif
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/* GUC settings */
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extern char *locale_messages;
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extern char *locale_monetary;
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extern char *locale_numeric;
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extern char *locale_time;
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/* lc_time localization cache */
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extern char *localized_abbrev_days[];
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extern char *localized_full_days[];
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extern char *localized_abbrev_months[];
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extern char *localized_full_months[];
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extern bool check_locale_messages(char **newval, void **extra, GucSource source);
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extern void assign_locale_messages(const char *newval, void *extra);
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extern bool check_locale_monetary(char **newval, void **extra, GucSource source);
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extern void assign_locale_monetary(const char *newval, void *extra);
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extern bool check_locale_numeric(char **newval, void **extra, GucSource source);
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extern void assign_locale_numeric(const char *newval, void *extra);
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extern bool check_locale_time(char **newval, void **extra, GucSource source);
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extern void assign_locale_time(const char *newval, void *extra);
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extern bool check_locale(int category, const char *locale, char **canonname);
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extern char *pg_perm_setlocale(int category, const char *locale);
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extern void check_strxfrm_bug(void);
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extern bool lc_collate_is_c(Oid collation);
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extern bool lc_ctype_is_c(Oid collation);
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/*
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* Return the POSIX lconv struct (contains number/money formatting
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* information) with locale information for all categories.
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*/
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extern struct lconv *PGLC_localeconv(void);
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extern void cache_locale_time(void);
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/*
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* We define our own wrapper around locale_t so we can keep the same
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* function signatures for all builds, while not having to create a
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* fake version of the standard type locale_t in the global namespace.
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* pg_locale_t is occasionally checked for truth, so make it a pointer.
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*/
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struct pg_locale_struct
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{
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char provider;
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union
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{
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#ifdef HAVE_LOCALE_T
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locale_t lt;
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#endif
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#ifdef USE_ICU
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struct
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{
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const char *locale;
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UCollator *ucol;
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} icu;
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#endif
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int dummy; /* in case we have neither LOCALE_T nor ICU */
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} info;
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};
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typedef struct pg_locale_struct *pg_locale_t;
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extern pg_locale_t pg_newlocale_from_collation(Oid collid);
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extern char *get_collation_actual_version(char collprovider, const char *collcollate);
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#ifdef USE_ICU
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extern int32_t icu_to_uchar(UChar **buff_uchar, const char *buff, size_t nbytes);
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extern int32_t icu_from_uchar(char **result, const UChar *buff_uchar, int32_t len_uchar);
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#endif
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/* These functions convert from/to libc's wchar_t, *not* pg_wchar_t */
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#ifdef USE_WIDE_UPPER_LOWER
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extern size_t wchar2char(char *to, const wchar_t *from, size_t tolen,
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pg_locale_t locale);
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extern size_t char2wchar(wchar_t *to, size_t tolen,
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const char *from, size_t fromlen, pg_locale_t locale);
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#endif
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#endif /* _PG_LOCALE_ */
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