#include "postgres.h"
#include <time.h>
#include "access/htup_details.h"
#include "catalog/pg_collation.h"
#include "catalog/pg_database.h"
#include "common/hashfn.h"
#include "common/string.h"
#include "mb/pg_wchar.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "utils/guc_hooks.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
#include "utils/pg_locale.h"
#include "utils/pg_locale_c.h"
#include "utils/relcache.h"
#include "utils/syscache.h"
#include "lib/simplehash.h"

Include dependency graph for pg_locale.c:

Data Structures
struct	collation_cache_entry

Macros
#define	PGLOCALE_SUPPORT_ERROR(provider) elog(ERROR, "unsupported collprovider for %s: %c", __func__, provider)

#define	TEXTBUFLEN 1024

#define	MAX_L10N_DATA 80

#define	SH_PREFIX collation_cache

#define	SH_ELEMENT_TYPE collation_cache_entry

#define	SH_KEY_TYPE Oid

#define	SH_KEY collid

#define	SH_HASH_KEY(tb, key) murmurhash32((uint32) key)

#define	SH_EQUAL(tb, a, b) (a == b)

#define	SH_GET_HASH(tb, a) a->hash

#define	SH_SCOPE static inline

#define	SH_STORE_HASH

#define	SH_DECLARE

#define	SH_DEFINE

Functions
pg_locale_t	create_pg_locale_builtin (Oid collid, MemoryContext context)

char *	get_collation_actual_version_builtin (const char *collcollate)

pg_locale_t	create_pg_locale_icu (Oid collid, MemoryContext context)

pg_locale_t	create_pg_locale_libc (Oid collid, MemoryContext context)

char *	get_collation_actual_version_libc (const char *collcollate)

char *	pg_perm_setlocale (int category, const char *locale)

bool	check_locale (int category, const char locale, char *canonname)

bool	check_locale_monetary (char newval, void extra, GucSource source)

void	assign_locale_monetary (const char newval, void extra)

bool	check_locale_numeric (char newval, void extra, GucSource source)

void	assign_locale_numeric (const char newval, void extra)

bool	check_locale_time (char newval, void extra, GucSource source)

void	assign_locale_time (const char newval, void extra)

bool	check_locale_messages (char newval, void extra, GucSource source)

void	assign_locale_messages (const char newval, void extra)

static void	free_struct_lconv (struct lconv *s)

static bool	struct_lconv_is_valid (struct lconv *s)

static void	db_encoding_convert (int encoding, char **str)

struct lconv *	PGLC_localeconv (void)

static void	cache_single_string (char *dst, const char src, int encoding)

void	cache_locale_time (void)

static pg_locale_t	create_pg_locale (Oid collid, MemoryContext context)

void	init_database_collation (void)

pg_locale_t	pg_database_locale (void)

pg_locale_t	pg_newlocale_from_collation (Oid collid)

char *	get_collation_actual_version (char collprovider, const char *collcollate)

static size_t	strlower_c (char dst, size_t dstsize, const char src, ssize_t srclen)

static size_t	strtitle_c (char dst, size_t dstsize, const char src, ssize_t srclen)

static size_t	strupper_c (char dst, size_t dstsize, const char src, ssize_t srclen)

size_t	pg_strlower (char dst, size_t dstsize, const char src, ssize_t srclen, pg_locale_t locale)

size_t	pg_strtitle (char dst, size_t dstsize, const char src, ssize_t srclen, pg_locale_t locale)

size_t	pg_strupper (char dst, size_t dstsize, const char src, ssize_t srclen, pg_locale_t locale)

size_t	pg_strfold (char dst, size_t dstsize, const char src, ssize_t srclen, pg_locale_t locale)

size_t	pg_downcase_ident (char dst, size_t dstsize, const char src, ssize_t srclen)

int	pg_strcoll (const char arg1, const char arg2, pg_locale_t locale)

int	pg_strncoll (const char arg1, ssize_t len1, const char arg2, ssize_t len2, pg_locale_t locale)

bool	pg_strxfrm_enabled (pg_locale_t locale)

size_t	pg_strxfrm (char dest, const char src, size_t destsize, pg_locale_t locale)

size_t	pg_strnxfrm (char dest, size_t destsize, const char src, ssize_t srclen, pg_locale_t locale)

bool	pg_strxfrm_prefix_enabled (pg_locale_t locale)

size_t	pg_strxfrm_prefix (char dest, const char src, size_t destsize, pg_locale_t locale)

size_t	pg_strnxfrm_prefix (char dest, size_t destsize, const char src, ssize_t srclen, pg_locale_t locale)

bool	pg_iswdigit (pg_wchar wc, pg_locale_t locale)

bool	pg_iswalpha (pg_wchar wc, pg_locale_t locale)

bool	pg_iswalnum (pg_wchar wc, pg_locale_t locale)

bool	pg_iswupper (pg_wchar wc, pg_locale_t locale)

bool	pg_iswlower (pg_wchar wc, pg_locale_t locale)

bool	pg_iswgraph (pg_wchar wc, pg_locale_t locale)

bool	pg_iswprint (pg_wchar wc, pg_locale_t locale)

bool	pg_iswpunct (pg_wchar wc, pg_locale_t locale)

bool	pg_iswspace (pg_wchar wc, pg_locale_t locale)

bool	pg_iswxdigit (pg_wchar wc, pg_locale_t locale)

bool	pg_iswcased (pg_wchar wc, pg_locale_t locale)

pg_wchar	pg_towupper (pg_wchar wc, pg_locale_t locale)

pg_wchar	pg_towlower (pg_wchar wc, pg_locale_t locale)

const char *	pg_icu_unicode_version ()

int	builtin_locale_encoding (const char *locale)

const char *	builtin_validate_locale (int encoding, const char *locale)

char *	icu_language_tag (const char *loc_str, int elevel)

void	icu_validate_locale (const char *loc_str)

Variables
char *	locale_messages

char *	locale_monetary

char *	locale_numeric

char *	locale_time

int	icu_validation_level = WARNING

char *	localized_abbrev_days [7+1]

char *	localized_full_days [7+1]

char *	localized_abbrev_months [12+1]

char *	localized_full_months [12+1]

static pg_locale_t	default_locale = NULL

static bool	CurrentLocaleConvValid = false

static bool	CurrentLCTimeValid = false

static struct pg_locale_struct	c_locale

static MemoryContext	CollationCacheContext = NULL

static collation_cache_hash *	CollationCache = NULL

static Oid	last_collation_cache_oid = InvalidOid

static pg_locale_t	last_collation_cache_locale = NULL

Macro Definition Documentation

◆ MAX_L10N_DATA

#define MAX_L10N_DATA 80

Definition at line 69 of file pg_locale.c.

◆ PGLOCALE_SUPPORT_ERROR

#define PGLOCALE_SUPPORT_ERROR ( provider ) elog(ERROR, "unsupported collprovider for %s: %c", __func__, provider)

Definition at line 60 of file pg_locale.c.

◆ SH_DECLARE

#define SH_DECLARE

Definition at line 139 of file pg_locale.c.

◆ SH_DEFINE

#define SH_DEFINE

Definition at line 140 of file pg_locale.c.

◆ SH_ELEMENT_TYPE

#define SH_ELEMENT_TYPE collation_cache_entry

Definition at line 131 of file pg_locale.c.

◆ SH_EQUAL

#define SH_EQUAL	(	tb,
		a,
		b
	)	(a == b)

Definition at line 135 of file pg_locale.c.

◆ SH_GET_HASH

#define SH_GET_HASH	(	tb,
		a
	)	a->hash

Definition at line 136 of file pg_locale.c.

◆ SH_HASH_KEY

#define SH_HASH_KEY	(	tb,
		key
	)	murmurhash32((uint32) key)

Definition at line 134 of file pg_locale.c.

◆ SH_KEY

#define SH_KEY collid

Definition at line 133 of file pg_locale.c.

◆ SH_KEY_TYPE

#define SH_KEY_TYPE Oid

Definition at line 132 of file pg_locale.c.

◆ SH_PREFIX

#define SH_PREFIX collation_cache

Definition at line 130 of file pg_locale.c.

◆ SH_SCOPE

#define SH_SCOPE static inline

Definition at line 137 of file pg_locale.c.

◆ SH_STORE_HASH

#define SH_STORE_HASH

Definition at line 138 of file pg_locale.c.

◆ TEXTBUFLEN

#define TEXTBUFLEN 1024

Definition at line 67 of file pg_locale.c.

Function Documentation

◆ assign_locale_messages()

void assign_locale_messages	(	const char *	newval,
		void *	extra
	)

Definition at line 409 of file pg_locale.c.

{
    /*
     * LC_MESSAGES category does not exist everywhere, but accept it anyway.
     * We ignore failure, as per comment above.
     */
#ifdef LC_MESSAGES
    (void) pg_perm_setlocale(LC_MESSAGES, newval);
#endif
}

References newval, and pg_perm_setlocale().

◆ assign_locale_monetary()

void assign_locale_monetary	(	const char *	newval,
		void *	extra
	)

Definition at line 346 of file pg_locale.c.

{
    CurrentLocaleConvValid = false;
}

References CurrentLocaleConvValid.

◆ assign_locale_numeric()

void assign_locale_numeric	(	const char *	newval,
		void *	extra
	)

Definition at line 358 of file pg_locale.c.

{
    CurrentLocaleConvValid = false;
}

References CurrentLocaleConvValid.

◆ assign_locale_time()

void assign_locale_time	(	const char *	newval,
		void *	extra
	)

Definition at line 370 of file pg_locale.c.

{
    CurrentLCTimeValid = false;
}

References CurrentLCTimeValid.

◆ builtin_locale_encoding()

int builtin_locale_encoding ( const char * locale )

Definition at line 1667 of file pg_locale.c.

{
    if (strcmp(locale, "C") == 0)
        return -1;
    else if (strcmp(locale, "C.UTF-8") == 0)
        return PG_UTF8;
    else if (strcmp(locale, "PG_UNICODE_FAST") == 0)
        return PG_UTF8;
 
 
    ereport(ERROR,
            (errcode(ERRCODE_WRONG_OBJECT_TYPE),
             errmsg("invalid locale name \"%s\" for builtin provider",
                    locale)));
 
    return 0;                   /* keep compiler quiet */
}

References ereport, errcode(), errmsg(), ERROR, locale, and PG_UTF8.

Referenced by builtin_validate_locale(), and DefineCollation().

◆ builtin_validate_locale()

const char * builtin_validate_locale	(	int	encoding,
		const char *	locale
	)

Definition at line 1691 of file pg_locale.c.

{
    const char *canonical_name = NULL;
    int         required_encoding;
 
    if (strcmp(locale, "C") == 0)
        canonical_name = "C";
    else if (strcmp(locale, "C.UTF-8") == 0 || strcmp(locale, "C.UTF8") == 0)
        canonical_name = "C.UTF-8";
    else if (strcmp(locale, "PG_UNICODE_FAST") == 0)
        canonical_name = "PG_UNICODE_FAST";
 
    if (!canonical_name)
        ereport(ERROR,
                (errcode(ERRCODE_WRONG_OBJECT_TYPE),
                 errmsg("invalid locale name \"%s\" for builtin provider",
                        locale)));
 
    required_encoding = builtin_locale_encoding(canonical_name);
    if (required_encoding >= 0 && encoding != required_encoding)
        ereport(ERROR,
                (errcode(ERRCODE_WRONG_OBJECT_TYPE),
                 errmsg("encoding \"%s\" does not match locale \"%s\"",
                        pg_encoding_to_char(encoding), locale)));
 
    return canonical_name;
}

References builtin_locale_encoding(), encoding, ereport, errcode(), errmsg(), ERROR, locale, and pg_encoding_to_char.

Referenced by create_pg_locale_builtin(), createdb(), and DefineCollation().

◆ cache_locale_time()

void cache_locale_time ( void )

Definition at line 702 of file pg_locale.c.

{
    char        buf[(2 * 7 + 2 * 12) * MAX_L10N_DATA];
    char       *bufptr;
    time_t      timenow;
    struct tm  *timeinfo;
    struct tm   timeinfobuf;
    bool        strftimefail = false;
    int         encoding;
    int         i;
    locale_t    locale;
 
    /* did we do this already? */
    if (CurrentLCTimeValid)
        return;
 
    elog(DEBUG3, "cache_locale_time() executed; locale: \"%s\"", locale_time);
 
    errno = ENOENT;
#ifdef WIN32
    locale = _create_locale(LC_ALL, locale_time);
    if (locale == (locale_t) 0)
        _dosmaperr(GetLastError());
#else
    locale = newlocale(LC_ALL_MASK, locale_time, (locale_t) 0);
#endif
    if (!locale)
        report_newlocale_failure(locale_time);
 
    /* We use times close to current time as data for strftime(). */
    timenow = time(NULL);
    timeinfo = gmtime_r(&timenow, &timeinfobuf);
 
    /* Store the strftime results in MAX_L10N_DATA-sized portions of buf[] */
    bufptr = buf;
 
    /*
     * MAX_L10N_DATA is sufficient buffer space for every known locale, and
     * POSIX defines no strftime() errors.  (Buffer space exhaustion is not an
     * error.)  An implementation might report errors (e.g. ENOMEM) by
     * returning 0 (or, less plausibly, a negative value) and setting errno.
     * Report errno just in case the implementation did that, but clear it in
     * advance of the calls so we don't emit a stale, unrelated errno.
     */
    errno = 0;
 
    /* localized days */
    for (i = 0; i < 7; i++)
    {
        timeinfo->tm_wday = i;
        if (strftime_l(bufptr, MAX_L10N_DATA, "%a", timeinfo, locale) <= 0)
            strftimefail = true;
        bufptr += MAX_L10N_DATA;
        if (strftime_l(bufptr, MAX_L10N_DATA, "%A", timeinfo, locale) <= 0)
            strftimefail = true;
        bufptr += MAX_L10N_DATA;
    }
 
    /* localized months */
    for (i = 0; i < 12; i++)
    {
        timeinfo->tm_mon = i;
        timeinfo->tm_mday = 1;  /* make sure we don't have invalid date */
        if (strftime_l(bufptr, MAX_L10N_DATA, "%b", timeinfo, locale) <= 0)
            strftimefail = true;
        bufptr += MAX_L10N_DATA;
        if (strftime_l(bufptr, MAX_L10N_DATA, "%B", timeinfo, locale) <= 0)
            strftimefail = true;
        bufptr += MAX_L10N_DATA;
    }
 
#ifdef WIN32
    _free_locale(locale);
#else
    freelocale(locale);
#endif
 
    /*
     * At this point we've done our best to clean up, and can throw errors, or
     * call functions that might throw errors, with a clean conscience.
     */
    if (strftimefail)
        elog(ERROR, "strftime_l() failed");
 
#ifndef WIN32
 
    /*
     * As in PGLC_localeconv(), we must convert strftime()'s output from the
     * encoding implied by LC_TIME to the database encoding.  If we can't
     * identify the LC_TIME encoding, just perform encoding validation.
     */
    encoding = pg_get_encoding_from_locale(locale_time, true);
    if (encoding < 0)
        encoding = PG_SQL_ASCII;
 
#else
 
    /*
     * On Windows, strftime_win32() always returns UTF8 data, so convert from
     * that if necessary.
     */
    encoding = PG_UTF8;
 
#endif                          /* WIN32 */
 
    bufptr = buf;
 
    /* localized days */
    for (i = 0; i < 7; i++)
    {
        cache_single_string(&localized_abbrev_days[i], bufptr, encoding);
        bufptr += MAX_L10N_DATA;
        cache_single_string(&localized_full_days[i], bufptr, encoding);
        bufptr += MAX_L10N_DATA;
    }
    localized_abbrev_days[7] = NULL;
    localized_full_days[7] = NULL;
 
    /* localized months */
    for (i = 0; i < 12; i++)
    {
        cache_single_string(&localized_abbrev_months[i], bufptr, encoding);
        bufptr += MAX_L10N_DATA;
        cache_single_string(&localized_full_months[i], bufptr, encoding);
        bufptr += MAX_L10N_DATA;
    }
    localized_abbrev_months[12] = NULL;
    localized_full_months[12] = NULL;
 
    CurrentLCTimeValid = true;
}

References _dosmaperr(), buf, cache_single_string(), CurrentLCTimeValid, DEBUG3, elog, encoding, ERROR, i, locale, locale_t, locale_time, localized_abbrev_days, localized_abbrev_months, localized_full_days, localized_full_months, MAX_L10N_DATA, pg_get_encoding_from_locale(), PG_SQL_ASCII, PG_UTF8, report_newlocale_failure(), and tm.

Referenced by DCH_from_char(), and DCH_to_char().

◆ cache_single_string()

static void cache_single_string	(	char **	dst,
		const char *	src,
		int	encoding
	)

static

Definition at line 679 of file pg_locale.c.

{
    char       *ptr;
    char       *olddst;
 
    /* Convert the string to the database encoding, or validate it's OK */
    ptr = pg_any_to_server(src, strlen(src), encoding);
 
    /* Store the string in long-lived storage, replacing any previous value */
    olddst = *dst;
    *dst = MemoryContextStrdup(TopMemoryContext, ptr);
    if (olddst)
        pfree(olddst);
 
    /* Might as well clean up any palloc'd conversion result, too */
    if (ptr != src)
        pfree(ptr);
}

References encoding, MemoryContextStrdup(), pfree(), pg_any_to_server(), and TopMemoryContext.

Referenced by cache_locale_time().

◆ check_locale()

bool check_locale	(	int	category,
		const char *	locale,
		char **	canonname
	)

Definition at line 275 of file pg_locale.c.

{
    char       *save;
    char       *res;
 
    /* Don't let Windows' non-ASCII locale names in. */
    if (!pg_is_ascii(locale))
    {
        ereport(WARNING,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("locale name \"%s\" contains non-ASCII characters",
                        locale)));
        return false;
    }
 
    if (canonname)
        *canonname = NULL;      /* in case of failure */
 
    save = setlocale(category, NULL);
    if (!save)
        return false;           /* won't happen, we hope */
 
    /* save may be pointing at a modifiable scratch variable, see above. */
    save = pstrdup(save);
 
    /* set the locale with setlocale, to see if it accepts it. */
    res = setlocale(category, locale);
 
    /* save canonical name if requested. */
    if (res && canonname)
        *canonname = pstrdup(res);
 
    /* restore old value. */
    if (!setlocale(category, save))
        elog(WARNING, "failed to restore old locale \"%s\"", save);
    pfree(save);
 
    /* Don't let Windows' non-ASCII locale names out. */
    if (canonname && *canonname && !pg_is_ascii(*canonname))
    {
        ereport(WARNING,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("locale name \"%s\" contains non-ASCII characters",
                        *canonname)));
        pfree(*canonname);
        *canonname = NULL;
        return false;
    }
 
    return (res != NULL);
}

References elog, ereport, errcode(), errmsg(), locale, pfree(), pg_is_ascii(), pstrdup(), setlocale, and WARNING.

Referenced by check_locale_messages(), check_locale_monetary(), check_locale_numeric(), check_locale_time(), and createdb().

◆ check_locale_messages()

bool check_locale_messages	(	char **	newval,
		void **	extra,
		GucSource	source
	)

Definition at line 386 of file pg_locale.c.

{
    if (**newval == '\0')
    {
        if (source == PGC_S_DEFAULT)
            return true;
        else
            return false;
    }
 
    /*
     * LC_MESSAGES category does not exist everywhere, but accept it anyway
     *
     * On Windows, we can't even check the value, so accept blindly
     */
#if defined(LC_MESSAGES) && !defined(WIN32)
    return check_locale(LC_MESSAGES, *newval, NULL);
#else
    return true;
#endif
}

References check_locale(), newval, PGC_S_DEFAULT, and source.

◆ check_locale_monetary()

bool check_locale_monetary	(	char **	newval,
		void **	extra,
		GucSource	source
	)

Definition at line 340 of file pg_locale.c.

{
    return check_locale(LC_MONETARY, *newval, NULL);
}

References check_locale(), and newval.

◆ check_locale_numeric()

bool check_locale_numeric	(	char **	newval,
		void **	extra,
		GucSource	source
	)

Definition at line 352 of file pg_locale.c.

{
    return check_locale(LC_NUMERIC, *newval, NULL);
}

References check_locale(), and newval.

◆ check_locale_time()

bool check_locale_time	(	char **	newval,
		void **	extra,
		GucSource	source
	)

Definition at line 364 of file pg_locale.c.

{
    return check_locale(LC_TIME, *newval, NULL);
}

References check_locale(), and newval.

◆ create_pg_locale()

static pg_locale_t create_pg_locale	(	Oid	collid,
		MemoryContext	context
	)

static

Definition at line 1049 of file pg_locale.c.

{
    HeapTuple   tp;
    Form_pg_collation collform;
    pg_locale_t result;
    Datum       datum;
    bool        isnull;
 
    tp = SearchSysCache1(COLLOID, ObjectIdGetDatum(collid));
    if (!HeapTupleIsValid(tp))
        elog(ERROR, "cache lookup failed for collation %u", collid);
    collform = (Form_pg_collation) GETSTRUCT(tp);
 
    if (collform->collprovider == COLLPROVIDER_BUILTIN)
        result = create_pg_locale_builtin(collid, context);
    else if (collform->collprovider == COLLPROVIDER_ICU)
        result = create_pg_locale_icu(collid, context);
    else if (collform->collprovider == COLLPROVIDER_LIBC)
        result = create_pg_locale_libc(collid, context);
    else
        /* shouldn't happen */
        PGLOCALE_SUPPORT_ERROR(collform->collprovider);
 
    result->is_default = false;
 
    Assert((result->collate_is_c && result->collate == NULL) ||
           (!result->collate_is_c && result->collate != NULL));
 
    Assert((result->ctype_is_c && result->ctype == NULL) ||
           (!result->ctype_is_c && result->ctype != NULL));
 
    datum = SysCacheGetAttr(COLLOID, tp, Anum_pg_collation_collversion,
                            &isnull);
    if (!isnull)
    {
        char       *actual_versionstr;
        char       *collversionstr;
 
        collversionstr = TextDatumGetCString(datum);
 
        if (collform->collprovider == COLLPROVIDER_LIBC)
            datum = SysCacheGetAttrNotNull(COLLOID, tp, Anum_pg_collation_collcollate);
        else
            datum = SysCacheGetAttrNotNull(COLLOID, tp, Anum_pg_collation_colllocale);
 
        actual_versionstr = get_collation_actual_version(collform->collprovider,
                                                         TextDatumGetCString(datum));
        if (!actual_versionstr)
        {
            /*
             * This could happen when specifying a version in CREATE COLLATION
             * but the provider does not support versioning, or manually
             * creating a mess in the catalogs.
             */
            ereport(ERROR,
                    (errmsg("collation \"%s\" has no actual version, but a version was recorded",
                            NameStr(collform->collname))));
        }
 
        if (strcmp(actual_versionstr, collversionstr) != 0)
            ereport(WARNING,
                    (errmsg("collation \"%s\" has version mismatch",
                            NameStr(collform->collname)),
                     errdetail("The collation in the database was created using version %s, "
                               "but the operating system provides version %s.",
                               collversionstr, actual_versionstr),
                     errhint("Rebuild all objects affected by this collation and run "
                             "ALTER COLLATION %s REFRESH VERSION, "
                             "or build PostgreSQL with the right library version.",
                             quote_qualified_identifier(get_namespace_name(collform->collnamespace),
                                                        NameStr(collform->collname)))));
    }
 
    ReleaseSysCache(tp);
 
    return result;
}

References Assert(), pg_locale_struct::collate, pg_locale_struct::collate_is_c, collid, create_pg_locale_builtin(), create_pg_locale_icu(), create_pg_locale_libc(), pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, elog, ereport, errdetail(), errhint(), errmsg(), ERROR, get_collation_actual_version(), get_namespace_name(), GETSTRUCT(), HeapTupleIsValid, pg_locale_struct::is_default, NameStr, ObjectIdGetDatum(), PGLOCALE_SUPPORT_ERROR, quote_qualified_identifier(), ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttr(), SysCacheGetAttrNotNull(), TextDatumGetCString, and WARNING.

Referenced by pg_newlocale_from_collation().

◆ create_pg_locale_builtin()

pg_locale_t create_pg_locale_builtin	(	Oid	collid,
		MemoryContext	context
	)

Definition at line 229 of file pg_locale_builtin.c.

{
    const char *locstr;
    pg_locale_t result;
 
    if (collid == DEFAULT_COLLATION_OID)
    {
        HeapTuple   tp;
        Datum       datum;
 
        tp = SearchSysCache1(DATABASEOID, ObjectIdGetDatum(MyDatabaseId));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for database %u", MyDatabaseId);
        datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
                                       Anum_pg_database_datlocale);
        locstr = TextDatumGetCString(datum);
        ReleaseSysCache(tp);
    }
    else
    {
        HeapTuple   tp;
        Datum       datum;
 
        tp = SearchSysCache1(COLLOID, ObjectIdGetDatum(collid));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for collation %u", collid);
        datum = SysCacheGetAttrNotNull(COLLOID, tp,
                                       Anum_pg_collation_colllocale);
        locstr = TextDatumGetCString(datum);
        ReleaseSysCache(tp);
    }
 
    builtin_validate_locale(GetDatabaseEncoding(), locstr);
 
    result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
 
    result->builtin.locale = MemoryContextStrdup(context, locstr);
    result->builtin.casemap_full = (strcmp(locstr, "PG_UNICODE_FAST") == 0);
    result->deterministic = true;
    result->collate_is_c = true;
    result->ctype_is_c = (strcmp(locstr, "C") == 0);
    if (!result->ctype_is_c)
        result->ctype = &ctype_methods_builtin;
 
    return result;
}

References pg_locale_struct::builtin, builtin_validate_locale(), pg_locale_struct::casemap_full, pg_locale_struct::collate_is_c, collid, pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, ctype_methods_builtin, pg_locale_struct::deterministic, elog, ERROR, GetDatabaseEncoding(), HeapTupleIsValid, pg_locale_struct::locale, MemoryContextAllocZero(), MemoryContextStrdup(), MyDatabaseId, ObjectIdGetDatum(), ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttrNotNull(), and TextDatumGetCString.

Referenced by create_pg_locale(), and init_database_collation().

◆ create_pg_locale_icu()

pg_locale_t create_pg_locale_icu	(	Oid	collid,
		MemoryContext	context
	)

Definition at line 307 of file pg_locale_icu.c.

{
#ifdef USE_ICU
    bool        deterministic;
    const char *iculocstr;
    const char *icurules = NULL;
    UCollator  *collator;
    locale_t    loc = (locale_t) 0;
    pg_locale_t result;
 
    if (collid == DEFAULT_COLLATION_OID)
    {
        HeapTuple   tp;
        Datum       datum;
        bool        isnull;
 
        tp = SearchSysCache1(DATABASEOID, ObjectIdGetDatum(MyDatabaseId));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for database %u", MyDatabaseId);
 
        /* default database collation is always deterministic */
        deterministic = true;
        datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
                                       Anum_pg_database_datlocale);
        iculocstr = TextDatumGetCString(datum);
        datum = SysCacheGetAttr(DATABASEOID, tp,
                                Anum_pg_database_daticurules, &isnull);
        if (!isnull)
            icurules = TextDatumGetCString(datum);
 
        /* libc only needed for default locale and single-byte encoding */
        if (pg_database_encoding_max_length() == 1)
        {
            const char *ctype;
 
            datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
                                           Anum_pg_database_datctype);
            ctype = TextDatumGetCString(datum);
 
            loc = make_libc_ctype_locale(ctype);
        }
 
        ReleaseSysCache(tp);
    }
    else
    {
        Form_pg_collation collform;
        HeapTuple   tp;
        Datum       datum;
        bool        isnull;
 
        tp = SearchSysCache1(COLLOID, ObjectIdGetDatum(collid));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for collation %u", collid);
        collform = (Form_pg_collation) GETSTRUCT(tp);
        deterministic = collform->collisdeterministic;
        datum = SysCacheGetAttrNotNull(COLLOID, tp,
                                       Anum_pg_collation_colllocale);
        iculocstr = TextDatumGetCString(datum);
        datum = SysCacheGetAttr(COLLOID, tp,
                                Anum_pg_collation_collicurules, &isnull);
        if (!isnull)
            icurules = TextDatumGetCString(datum);
 
        ReleaseSysCache(tp);
    }
 
    collator = make_icu_collator(iculocstr, icurules);
 
    result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
    result->icu.locale = MemoryContextStrdup(context, iculocstr);
    result->icu.ucol = collator;
    result->icu.lt = loc;
    result->deterministic = deterministic;
    result->collate_is_c = false;
    result->ctype_is_c = false;
    if (GetDatabaseEncoding() == PG_UTF8)
    {
        result->icu.ucasemap = pg_ucasemap_open(iculocstr);
        result->collate = &collate_methods_icu_utf8;
        result->ctype = &ctype_methods_icu_utf8;
    }
    else
    {
        result->collate = &collate_methods_icu;
        result->ctype = &ctype_methods_icu;
    }
 
    return result;
#else
    /* could get here if a collation was created by a build with ICU */
    ereport(ERROR,
            (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
             errmsg("ICU is not supported in this build")));
 
    return NULL;
#endif
}

References pg_locale_struct::collate, pg_locale_struct::collate_is_c, collid, pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, pg_locale_struct::deterministic, elog, ereport, errcode(), errmsg(), ERROR, GetDatabaseEncoding(), GETSTRUCT(), HeapTupleIsValid, pg_locale_struct::locale, locale_t, pg_locale_struct::lt, MemoryContextAllocZero(), MemoryContextStrdup(), MyDatabaseId, ObjectIdGetDatum(), pg_database_encoding_max_length(), PG_UTF8, ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttr(), SysCacheGetAttrNotNull(), and TextDatumGetCString.

Referenced by create_pg_locale(), and init_database_collation().

◆ create_pg_locale_libc()

pg_locale_t create_pg_locale_libc	(	Oid	collid,
		MemoryContext	context
	)

Definition at line 741 of file pg_locale_libc.c.

{
    const char *collate;
    const char *ctype;
    locale_t    loc;
    pg_locale_t result;
 
    if (collid == DEFAULT_COLLATION_OID)
    {
        HeapTuple   tp;
        Datum       datum;
 
        tp = SearchSysCache1(DATABASEOID, ObjectIdGetDatum(MyDatabaseId));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for database %u", MyDatabaseId);
        datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
                                       Anum_pg_database_datcollate);
        collate = TextDatumGetCString(datum);
        datum = SysCacheGetAttrNotNull(DATABASEOID, tp,
                                       Anum_pg_database_datctype);
        ctype = TextDatumGetCString(datum);
 
        ReleaseSysCache(tp);
    }
    else
    {
        HeapTuple   tp;
        Datum       datum;
 
        tp = SearchSysCache1(COLLOID, ObjectIdGetDatum(collid));
        if (!HeapTupleIsValid(tp))
            elog(ERROR, "cache lookup failed for collation %u", collid);
 
        datum = SysCacheGetAttrNotNull(COLLOID, tp,
                                       Anum_pg_collation_collcollate);
        collate = TextDatumGetCString(datum);
        datum = SysCacheGetAttrNotNull(COLLOID, tp,
                                       Anum_pg_collation_collctype);
        ctype = TextDatumGetCString(datum);
 
        ReleaseSysCache(tp);
    }
 
 
    loc = make_libc_collator(collate, ctype);
 
    result = MemoryContextAllocZero(context, sizeof(struct pg_locale_struct));
    result->deterministic = true;
    result->collate_is_c = (strcmp(collate, "C") == 0) ||
        (strcmp(collate, "POSIX") == 0);
    result->ctype_is_c = (strcmp(ctype, "C") == 0) ||
        (strcmp(ctype, "POSIX") == 0);
    result->lt = loc;
    if (!result->collate_is_c)
    {
#ifdef WIN32
        if (GetDatabaseEncoding() == PG_UTF8)
            result->collate = &collate_methods_libc_win32_utf8;
        else
#endif
            result->collate = &collate_methods_libc;
    }
    if (!result->ctype_is_c)
    {
        if (GetDatabaseEncoding() == PG_UTF8)
            result->ctype = &ctype_methods_libc_utf8;
        else if (pg_database_encoding_max_length() > 1)
            result->ctype = &ctype_methods_libc_other_mb;
        else
            result->ctype = &ctype_methods_libc_sb;
    }
 
    return result;
}

References pg_locale_struct::collate, pg_locale_struct::collate_is_c, collate_methods_libc, collid, pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, ctype_methods_libc_other_mb, ctype_methods_libc_sb, ctype_methods_libc_utf8, pg_locale_struct::deterministic, elog, ERROR, GetDatabaseEncoding(), HeapTupleIsValid, if(), locale_t, pg_locale_struct::lt, make_libc_collator(), MemoryContextAllocZero(), MyDatabaseId, ObjectIdGetDatum(), pg_database_encoding_max_length(), PG_UTF8, ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttrNotNull(), and TextDatumGetCString.

Referenced by create_pg_locale(), and init_database_collation().

◆ db_encoding_convert()

static void db_encoding_convert	(	int	encoding,
		char **	str
	)

static

Definition at line 476 of file pg_locale.c.

{
    char       *pstr;
    char       *mstr;
 
    /* convert the string to the database encoding */
    pstr = pg_any_to_server(*str, strlen(*str), encoding);
    if (pstr == *str)
        return;                 /* no conversion happened */
 
    /* need it malloc'd not palloc'd */
    mstr = strdup(pstr);
    if (mstr == NULL)
        ereport(ERROR,
                (errcode(ERRCODE_OUT_OF_MEMORY),
                 errmsg("out of memory")));
 
    /* replace old string */
    free(*str);
    *str = mstr;
 
    pfree(pstr);
}

References encoding, ereport, errcode(), errmsg(), ERROR, free, pfree(), pg_any_to_server(), and str.

Referenced by PGLC_localeconv().

◆ free_struct_lconv()

static void free_struct_lconv ( struct lconv * s )

static

Definition at line 426 of file pg_locale.c.

{
    free(s->decimal_point);
    free(s->thousands_sep);
    free(s->grouping);
    free(s->int_curr_symbol);
    free(s->currency_symbol);
    free(s->mon_decimal_point);
    free(s->mon_thousands_sep);
    free(s->mon_grouping);
    free(s->positive_sign);
    free(s->negative_sign);
}

References free.

Referenced by PGLC_localeconv().

◆ get_collation_actual_version()

char * get_collation_actual_version	(	char	collprovider,
		const char *	collcollate
	)

Definition at line 1247 of file pg_locale.c.

{
    char       *collversion = NULL;
 
    if (collprovider == COLLPROVIDER_BUILTIN)
        collversion = get_collation_actual_version_builtin(collcollate);
#ifdef USE_ICU
    else if (collprovider == COLLPROVIDER_ICU)
        collversion = get_collation_actual_version_icu(collcollate);
#endif
    else if (collprovider == COLLPROVIDER_LIBC)
        collversion = get_collation_actual_version_libc(collcollate);
 
    return collversion;
}

References get_collation_actual_version_builtin(), and get_collation_actual_version_libc().

Referenced by AlterCollation(), AlterDatabaseRefreshColl(), CheckMyDatabase(), create_pg_locale(), createdb(), DefineCollation(), pg_collation_actual_version(), pg_database_collation_actual_version(), and pg_import_system_collations().

◆ get_collation_actual_version_builtin()

char * get_collation_actual_version_builtin ( const char * collcollate )

Definition at line 277 of file pg_locale_builtin.c.

{
    /*
     * The only two supported locales (C and C.UTF-8) are both based on memcmp
     * and are not expected to change, but track the version anyway.
     *
     * Note that the character semantics may change for some locales, but the
     * collation version only tracks changes to sort order.
     */
    if (strcmp(collcollate, "C") == 0)
        return "1";
    else if (strcmp(collcollate, "C.UTF-8") == 0)
        return "1";
    else if (strcmp(collcollate, "PG_UNICODE_FAST") == 0)
        return "1";
    else
        ereport(ERROR,
                (errcode(ERRCODE_WRONG_OBJECT_TYPE),
                 errmsg("invalid locale name \"%s\" for builtin provider",
                        collcollate)));
 
    return NULL;                /* keep compiler quiet */
}

References ereport, errcode(), errmsg(), and ERROR.

Referenced by get_collation_actual_version().

◆ get_collation_actual_version_libc()

char * get_collation_actual_version_libc ( const char * collcollate )

Definition at line 983 of file pg_locale_libc.c.

{
    char       *collversion = NULL;
 
    if (pg_strcasecmp("C", collcollate) != 0 &&
        pg_strncasecmp("C.", collcollate, 2) != 0 &&
        pg_strcasecmp("POSIX", collcollate) != 0)
    {
#if defined(__GLIBC__)
        /* Use the glibc version because we don't have anything better. */
        collversion = pstrdup(gnu_get_libc_version());
#elif defined(LC_VERSION_MASK)
        locale_t    loc;
 
        /* Look up FreeBSD collation version. */
        loc = newlocale(LC_COLLATE_MASK, collcollate, NULL);
        if (loc)
        {
            collversion =
                pstrdup(querylocale(LC_COLLATE_MASK | LC_VERSION_MASK, loc));
            freelocale(loc);
        }
        else
            ereport(ERROR,
                    (errmsg("could not load locale \"%s\"", collcollate)));
#elif defined(WIN32)
        /*
         * If we are targeting Windows Vista and above, we can ask for a name
         * given a collation name (earlier versions required a location code
         * that we don't have).
         */
        NLSVERSIONINFOEX version = {sizeof(NLSVERSIONINFOEX)};
        WCHAR       wide_collcollate[LOCALE_NAME_MAX_LENGTH];
 
        MultiByteToWideChar(CP_ACP, 0, collcollate, -1, wide_collcollate,
                            LOCALE_NAME_MAX_LENGTH);
        if (!GetNLSVersionEx(COMPARE_STRING, wide_collcollate, &version))
        {
            /*
             * GetNLSVersionEx() wants a language tag such as "en-US", not a
             * locale name like "English_United States.1252".  Until those
             * values can be prevented from entering the system, or 100%
             * reliably converted to the more useful tag format, tolerate the
             * resulting error and report that we have no version data.
             */
            if (GetLastError() == ERROR_INVALID_PARAMETER)
                return NULL;
 
            ereport(ERROR,
                    (errmsg("could not get collation version for locale \"%s\": error code %lu",
                            collcollate,
                            GetLastError())));
        }
        collversion = psprintf("%lu.%lu,%lu.%lu",
                               (version.dwNLSVersion >> 8) & 0xFFFF,
                               version.dwNLSVersion & 0xFF,
                               (version.dwDefinedVersion >> 8) & 0xFFFF,
                               version.dwDefinedVersion & 0xFF);
#endif
    }
 
    return collversion;
}

References ereport, errmsg(), ERROR, locale_t, pg_strcasecmp(), pg_strncasecmp(), psprintf(), and pstrdup().

Referenced by get_collation_actual_version().

◆ icu_language_tag()

char * icu_language_tag	(	const char *	loc_str,
		int	elevel
	)

Definition at line 1731 of file pg_locale.c.

{
#ifdef USE_ICU
    UErrorCode  status;
    char       *langtag;
    size_t      buflen = 32;    /* arbitrary starting buffer size */
    const bool  strict = true;
 
    /*
     * A BCP47 language tag doesn't have a clearly-defined upper limit (cf.
     * RFC5646 section 4.4). Additionally, in older ICU versions,
     * uloc_toLanguageTag() doesn't always return the ultimate length on the
     * first call, necessitating a loop.
     */
    langtag = palloc(buflen);
    while (true)
    {
        status = U_ZERO_ERROR;
        uloc_toLanguageTag(loc_str, langtag, buflen, strict, &status);
 
        /* try again if the buffer is not large enough */
        if ((status == U_BUFFER_OVERFLOW_ERROR ||
             status == U_STRING_NOT_TERMINATED_WARNING) &&
            buflen < MaxAllocSize)
        {
            buflen = Min(buflen * 2, MaxAllocSize);
            langtag = repalloc(langtag, buflen);
            continue;
        }
 
        break;
    }
 
    if (U_FAILURE(status))
    {
        pfree(langtag);
 
        if (elevel > 0)
            ereport(elevel,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("could not convert locale name \"%s\" to language tag: %s",
                            loc_str, u_errorName(status))));
        return NULL;
    }
 
    return langtag;
#else                           /* not USE_ICU */
    ereport(ERROR,
            (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
             errmsg("ICU is not supported in this build")));
    return NULL;                /* keep compiler quiet */
#endif                          /* not USE_ICU */
}

References ereport, errcode(), errmsg(), ERROR, MaxAllocSize, Min, palloc(), pfree(), and repalloc().

Referenced by createdb(), DefineCollation(), and pg_import_system_collations().

◆ icu_validate_locale()

void icu_validate_locale ( const char * loc_str )

Definition at line 1789 of file pg_locale.c.

{
#ifdef USE_ICU
    UCollator  *collator;
    UErrorCode  status;
    char        lang[ULOC_LANG_CAPACITY];
    bool        found = false;
    int         elevel = icu_validation_level;
 
    /* no validation */
    if (elevel < 0)
        return;
 
    /* downgrade to WARNING during pg_upgrade */
    if (IsBinaryUpgrade && elevel > WARNING)
        elevel = WARNING;
 
    /* validate that we can extract the language */
    status = U_ZERO_ERROR;
    uloc_getLanguage(loc_str, lang, ULOC_LANG_CAPACITY, &status);
    if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING)
    {
        ereport(elevel,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("could not get language from ICU locale \"%s\": %s",
                        loc_str, u_errorName(status)),
                 errhint("To disable ICU locale validation, set the parameter \"%s\" to \"%s\".",
                         "icu_validation_level", "disabled")));
        return;
    }
 
    /* check for special language name */
    if (strcmp(lang, "") == 0 ||
        strcmp(lang, "root") == 0 || strcmp(lang, "und") == 0)
        found = true;
 
    /* search for matching language within ICU */
    for (int32_t i = 0; !found && i < uloc_countAvailable(); i++)
    {
        const char *otherloc = uloc_getAvailable(i);
        char        otherlang[ULOC_LANG_CAPACITY];
 
        status = U_ZERO_ERROR;
        uloc_getLanguage(otherloc, otherlang, ULOC_LANG_CAPACITY, &status);
        if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING)
            continue;
 
        if (strcmp(lang, otherlang) == 0)
            found = true;
    }
 
    if (!found)
        ereport(elevel,
                (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("ICU locale \"%s\" has unknown language \"%s\"",
                        loc_str, lang),
                 errhint("To disable ICU locale validation, set the parameter \"%s\" to \"%s\".",
                         "icu_validation_level", "disabled")));
 
    /* check that it can be opened */
    collator = pg_ucol_open(loc_str);
    ucol_close(collator);
#else                           /* not USE_ICU */
    /* could get here if a collation was created by a build with ICU */
    ereport(ERROR,
            (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
             errmsg("ICU is not supported in this build")));
#endif                          /* not USE_ICU */
}

References ereport, errcode(), errhint(), errmsg(), ERROR, i, icu_validation_level, IsBinaryUpgrade, and WARNING.

Referenced by createdb(), and DefineCollation().

◆ init_database_collation()

void init_database_collation ( void )

Definition at line 1131 of file pg_locale.c.

{
    HeapTuple   tup;
    Form_pg_database dbform;
    pg_locale_t result;
 
    Assert(default_locale == NULL);
 
    /* Fetch our pg_database row normally, via syscache */
    tup = SearchSysCache1(DATABASEOID, ObjectIdGetDatum(MyDatabaseId));
    if (!HeapTupleIsValid(tup))
        elog(ERROR, "cache lookup failed for database %u", MyDatabaseId);
    dbform = (Form_pg_database) GETSTRUCT(tup);
 
    if (dbform->datlocprovider == COLLPROVIDER_BUILTIN)
        result = create_pg_locale_builtin(DEFAULT_COLLATION_OID,
                                          TopMemoryContext);
    else if (dbform->datlocprovider == COLLPROVIDER_ICU)
        result = create_pg_locale_icu(DEFAULT_COLLATION_OID,
                                      TopMemoryContext);
    else if (dbform->datlocprovider == COLLPROVIDER_LIBC)
        result = create_pg_locale_libc(DEFAULT_COLLATION_OID,
                                       TopMemoryContext);
    else
        /* shouldn't happen */
        PGLOCALE_SUPPORT_ERROR(dbform->datlocprovider);
 
    result->is_default = true;
 
    Assert((result->collate_is_c && result->collate == NULL) ||
           (!result->collate_is_c && result->collate != NULL));
 
    Assert((result->ctype_is_c && result->ctype == NULL) ||
           (!result->ctype_is_c && result->ctype != NULL));
 
    ReleaseSysCache(tup);
 
    default_locale = result;
}

References Assert(), pg_locale_struct::collate, pg_locale_struct::collate_is_c, create_pg_locale_builtin(), create_pg_locale_icu(), create_pg_locale_libc(), pg_locale_struct::ctype, pg_locale_struct::ctype_is_c, default_locale, elog, ERROR, GETSTRUCT(), HeapTupleIsValid, pg_locale_struct::is_default, MyDatabaseId, ObjectIdGetDatum(), PGLOCALE_SUPPORT_ERROR, ReleaseSysCache(), SearchSysCache1(), and TopMemoryContext.

Referenced by CheckMyDatabase().

◆ pg_database_locale()

pg_locale_t pg_database_locale ( void )

Definition at line 1175 of file pg_locale.c.

{
    return pg_newlocale_from_collation(DEFAULT_COLLATION_OID);
}

References pg_newlocale_from_collation().

Referenced by ltree_crc32_sz(), ltree_prefix_eq_ci(), t_isalnum(), and t_isalpha().

◆ pg_downcase_ident()

size_t pg_downcase_ident	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen
	)

Definition at line 1366 of file pg_locale.c.

{
    pg_locale_t locale = default_locale;
 
    if (locale == NULL || locale->ctype == NULL ||
        locale->ctype->downcase_ident == NULL)
        return strlower_c(dst, dstsize, src, srclen);
    else
        return locale->ctype->downcase_ident(dst, dstsize, src, srclen,
                                             locale);
}

References default_locale, locale, and strlower_c().

Referenced by downcase_identifier().

◆ pg_icu_unicode_version()

const char * pg_icu_unicode_version ( void )

Definition at line 1653 of file pg_locale.c.

{
#ifdef USE_ICU
    return U_UNICODE_VERSION;
#else
    return NULL;
#endif
}

Referenced by icu_unicode_version().

◆ pg_iswalnum()

bool pg_iswalnum	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1533 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISALNUM));
    else
        return locale->ctype->wc_isalnum(wc, locale);
}

References locale, pg_char_properties, and PG_ISALNUM.

Referenced by t_isalnum().

◆ pg_iswalpha()

bool pg_iswalpha	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1523 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISALPHA));
    else
        return locale->ctype->wc_isalpha(wc, locale);
}

References locale, pg_char_properties, and PG_ISALPHA.

Referenced by t_isalpha().

◆ pg_iswcased()

bool pg_iswcased	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1615 of file pg_locale.c.

{
    /* for the C locale, Cased and Alpha are equivalent */
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISALPHA));
    else
        return locale->ctype->wc_iscased(wc, locale);
}

References locale, pg_char_properties, and PG_ISALPHA.

Referenced by like_fixed_prefix_ci().

◆ pg_iswdigit()

bool pg_iswdigit	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1513 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISDIGIT));
    else
        return locale->ctype->wc_isdigit(wc, locale);
}

References locale, pg_char_properties, and PG_ISDIGIT.

◆ pg_iswgraph()

bool pg_iswgraph	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1563 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISGRAPH));
    else
        return locale->ctype->wc_isgraph(wc, locale);
}

References locale, pg_char_properties, and PG_ISGRAPH.

◆ pg_iswlower()

bool pg_iswlower	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1553 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISLOWER));
    else
        return locale->ctype->wc_islower(wc, locale);
}

References locale, pg_char_properties, and PG_ISLOWER.

◆ pg_iswprint()

bool pg_iswprint	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1573 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISPRINT));
    else
        return locale->ctype->wc_isprint(wc, locale);
}

References locale, pg_char_properties, and PG_ISPRINT.

◆ pg_iswpunct()

bool pg_iswpunct	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1583 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISPUNCT));
    else
        return locale->ctype->wc_ispunct(wc, locale);
}

References locale, pg_char_properties, and PG_ISPUNCT.

◆ pg_iswspace()

bool pg_iswspace	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1593 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISSPACE));
    else
        return locale->ctype->wc_isspace(wc, locale);
}

References locale, pg_char_properties, and PG_ISSPACE.

◆ pg_iswupper()

bool pg_iswupper	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1543 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                (pg_char_properties[wc] & PG_ISUPPER));
    else
        return locale->ctype->wc_isupper(wc, locale);
}

References locale, pg_char_properties, and PG_ISUPPER.

◆ pg_iswxdigit()

bool pg_iswxdigit	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1603 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return (wc <= (pg_wchar) 127 &&
                ((pg_char_properties[wc] & PG_ISDIGIT) ||
                 ((wc >= 'A' && wc <= 'F') ||
                  (wc >= 'a' && wc <= 'f'))));
    else
        return locale->ctype->wc_isxdigit(wc, locale);
}

References locale, pg_char_properties, and PG_ISDIGIT.

◆ pg_newlocale_from_collation()

pg_locale_t pg_newlocale_from_collation ( Oid collid )

Definition at line 1189 of file pg_locale.c.

{
    collation_cache_entry *cache_entry;
    bool        found;
 
    if (collid == DEFAULT_COLLATION_OID)
        return default_locale;
 
    /*
     * Some callers expect C_COLLATION_OID to succeed even without catalog
     * access.
     */
    if (collid == C_COLLATION_OID)
        return &c_locale;
 
    if (!OidIsValid(collid))
        elog(ERROR, "cache lookup failed for collation %u", collid);
 
    AssertCouldGetRelation();
 
    if (last_collation_cache_oid == collid)
        return last_collation_cache_locale;
 
    if (CollationCache == NULL)
    {
        CollationCacheContext = AllocSetContextCreate(TopMemoryContext,
                                                      "collation cache",
                                                      ALLOCSET_DEFAULT_SIZES);
        CollationCache = collation_cache_create(CollationCacheContext,
                                                16, NULL);
    }
 
    cache_entry = collation_cache_insert(CollationCache, collid, &found);
    if (!found)
    {
        /*
         * Make sure cache entry is marked invalid, in case we fail before
         * setting things.
         */
        cache_entry->locale = NULL;
    }
 
    if (cache_entry->locale == NULL)
    {
        cache_entry->locale = create_pg_locale(collid, CollationCacheContext);
    }
 
    last_collation_cache_oid = collid;
    last_collation_cache_locale = cache_entry->locale;
 
    return cache_entry->locale;
}

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate, AssertCouldGetRelation(), c_locale, CollationCache, CollationCacheContext, collid, create_pg_locale(), default_locale, elog, ERROR, last_collation_cache_locale, last_collation_cache_oid, collation_cache_entry::locale, OidIsValid, and TopMemoryContext.

Referenced by bpchareq(), bpcharne(), btvarstrequalimage(), convert_string_datum(), DefineCollation(), Generic_Text_IC_like(), GenericMatchText(), hashbpchar(), hashbpcharextended(), hashtext(), hashtextextended(), like_fixed_prefix_ci(), make_greater_string(), match_pattern_prefix(), pg_database_locale(), pg_set_regex_collation(), spg_text_inner_consistent(), str_casefold(), str_initcap(), str_tolower(), str_toupper(), text_position(), text_position_setup(), text_starts_with(), texteq(), textne(), varstr_cmp(), and varstr_sortsupport().

◆ pg_perm_setlocale()

char * pg_perm_setlocale	(	int	category,
		const char *	locale
	)

Definition at line 172 of file pg_locale.c.

{
    char       *result;
    const char *envvar;
 
#ifndef WIN32
    result = setlocale(category, locale);
#else
 
    /*
     * On Windows, setlocale(LC_MESSAGES) does not work, so just assume that
     * the given value is good and set it in the environment variables. We
     * must ignore attempts to set to "", which means "keep using the old
     * environment value".
     */
#ifdef LC_MESSAGES
    if (category == LC_MESSAGES)
    {
        result = (char *) locale;
        if (locale == NULL || locale[0] == '\0')
            return result;
    }
    else
#endif
        result = setlocale(category, locale);
#endif                          /* WIN32 */
 
    if (result == NULL)
        return result;          /* fall out immediately on failure */
 
    /*
     * Use the right encoding in translated messages.  Under ENABLE_NLS, let
     * pg_bind_textdomain_codeset() figure it out.  Under !ENABLE_NLS, message
     * format strings are ASCII, but database-encoding strings may enter the
     * message via %s.  This makes the overall message encoding equal to the
     * database encoding.
     */
    if (category == LC_CTYPE)
    {
        static char save_lc_ctype[LOCALE_NAME_BUFLEN];
 
        /* copy setlocale() return value before callee invokes it again */
        strlcpy(save_lc_ctype, result, sizeof(save_lc_ctype));
        result = save_lc_ctype;
 
#ifdef ENABLE_NLS
        SetMessageEncoding(pg_bind_textdomain_codeset(textdomain(NULL)));
#else
        SetMessageEncoding(GetDatabaseEncoding());
#endif
    }
 
    switch (category)
    {
        case LC_COLLATE:
            envvar = "LC_COLLATE";
            break;
        case LC_CTYPE:
            envvar = "LC_CTYPE";
            break;
#ifdef LC_MESSAGES
        case LC_MESSAGES:
            envvar = "LC_MESSAGES";
#ifdef WIN32
            result = IsoLocaleName(locale);
            if (result == NULL)
                result = (char *) locale;
            elog(DEBUG3, "IsoLocaleName() executed; locale: \"%s\"", result);
#endif                          /* WIN32 */
            break;
#endif                          /* LC_MESSAGES */
        case LC_MONETARY:
            envvar = "LC_MONETARY";
            break;
        case LC_NUMERIC:
            envvar = "LC_NUMERIC";
            break;
        case LC_TIME:
            envvar = "LC_TIME";
            break;
        default:
            elog(FATAL, "unrecognized LC category: %d", category);
            return NULL;        /* keep compiler quiet */
    }
 
    if (setenv(envvar, result, 1) != 0)
        return NULL;
 
    return result;
}

References DEBUG3, elog, FATAL, GetDatabaseEncoding(), locale, LOCALE_NAME_BUFLEN, setenv, setlocale, SetMessageEncoding(), and strlcpy().

Referenced by assign_locale_messages(), CheckMyDatabase(), and init_locale().

◆ pg_strcoll()

int pg_strcoll	(	const char *	arg1,
		const char *	arg2,
		pg_locale_t	locale
	)

Definition at line 1384 of file pg_locale.c.

{
    return locale->collate->strncoll(arg1, -1, arg2, -1, locale);
}

References locale.

Referenced by varstrfastcmp_locale().

◆ pg_strfold()

size_t pg_strfold	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1348 of file pg_locale.c.

{
    /* in the C locale, casefolding is the same as lowercasing */
    if (locale->ctype == NULL)
        return strlower_c(dst, dstsize, src, srclen);
    else
        return locale->ctype->strfold(dst, dstsize, src, srclen, locale);
}

References locale, and strlower_c().

Referenced by ltree_crc32_sz(), ltree_prefix_eq_ci(), and str_casefold().

◆ pg_strlower()

size_t pg_strlower	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1318 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return strlower_c(dst, dstsize, src, srclen);
    else
        return locale->ctype->strlower(dst, dstsize, src, srclen, locale);
}

References locale, and strlower_c().

Referenced by str_tolower().

◆ pg_strncoll()

int pg_strncoll	(	const char *	arg1,
		ssize_t	len1,
		const char *	arg2,
		ssize_t	len2,
		pg_locale_t	locale
	)

Definition at line 1404 of file pg_locale.c.

{
    return locale->collate->strncoll(arg1, len1, arg2, len2, locale);
}

References locale.

Referenced by MatchText(), text_position_next_internal(), and varstr_cmp().

◆ pg_strnxfrm()

size_t pg_strnxfrm	(	char *	dest,
		size_t	destsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1459 of file pg_locale.c.

{
    return locale->collate->strnxfrm(dest, destsize, src, srclen, locale);
}

References generate_unaccent_rules::dest, and locale.

Referenced by hashbpchar(), hashbpcharextended(), hashtext(), and hashtextextended().

◆ pg_strnxfrm_prefix()

size_t pg_strnxfrm_prefix	(	char *	dest,
		size_t	destsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1506 of file pg_locale.c.

{
    return locale->collate->strnxfrm_prefix(dest, destsize, src, srclen, locale);
}

References generate_unaccent_rules::dest, and locale.

◆ pg_strtitle()

size_t pg_strtitle	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1328 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return strtitle_c(dst, dstsize, src, srclen);
    else
        return locale->ctype->strtitle(dst, dstsize, src, srclen, locale);
}

References locale, and strtitle_c().

Referenced by str_initcap().

◆ pg_strupper()

size_t pg_strupper	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen,
		pg_locale_t	locale
	)

Definition at line 1338 of file pg_locale.c.

{
    if (locale->ctype == NULL)
        return strupper_c(dst, dstsize, src, srclen);
    else
        return locale->ctype->strupper(dst, dstsize, src, srclen, locale);
}

References locale, and strupper_c().

Referenced by str_toupper().

◆ pg_strxfrm()

size_t pg_strxfrm	(	char *	dest,
		const char *	src,
		size_t	destsize,
		pg_locale_t	locale
	)

Definition at line 1434 of file pg_locale.c.

{
    return locale->collate->strnxfrm(dest, destsize, src, -1, locale);
}

References generate_unaccent_rules::dest, and locale.

Referenced by convert_string_datum(), and varstr_abbrev_convert().

◆ pg_strxfrm_enabled()

bool pg_strxfrm_enabled ( pg_locale_t locale )

Definition at line 1418 of file pg_locale.c.

{
    /*
     * locale->collate->strnxfrm is still a required method, even if it may
     * have the wrong behavior, because the planner uses it for estimates in
     * some cases.
     */
    return locale->collate->strxfrm_is_safe;
}

References locale.

Referenced by varstr_sortsupport().

◆ pg_strxfrm_prefix()

size_t pg_strxfrm_prefix	(	char *	dest,
		const char *	src,
		size_t	destsize,
		pg_locale_t	locale
	)

Definition at line 1481 of file pg_locale.c.

{
    return locale->collate->strnxfrm_prefix(dest, destsize, src, -1, locale);
}

References generate_unaccent_rules::dest, and locale.

Referenced by varstr_abbrev_convert().

◆ pg_strxfrm_prefix_enabled()

bool pg_strxfrm_prefix_enabled ( pg_locale_t locale )

Definition at line 1470 of file pg_locale.c.

{
    return (locale->collate->strnxfrm_prefix != NULL);
}

References locale.

Referenced by varstr_abbrev_convert().

◆ pg_towlower()

pg_wchar pg_towlower	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1639 of file pg_locale.c.

{
    if (locale->ctype == NULL)
    {
        if (wc <= (pg_wchar) 127)
            return pg_ascii_tolower((unsigned char) wc);
        return wc;
    }
    else
        return locale->ctype->wc_tolower(wc, locale);
}

References locale, and pg_ascii_tolower().

◆ pg_towupper()

pg_wchar pg_towupper	(	pg_wchar	wc,
		pg_locale_t	locale
	)

Definition at line 1626 of file pg_locale.c.

{
    if (locale->ctype == NULL)
    {
        if (wc <= (pg_wchar) 127)
            return pg_ascii_toupper((unsigned char) wc);
        return wc;
    }
    else
        return locale->ctype->wc_toupper(wc, locale);
}

References locale, and pg_ascii_toupper().

◆ PGLC_localeconv()

struct lconv * PGLC_localeconv ( void )

Definition at line 506 of file pg_locale.c.

{
    static struct lconv CurrentLocaleConv;
    static bool CurrentLocaleConvAllocated = false;
    struct lconv *extlconv;
    struct lconv tmp;
    struct lconv worklconv = {0};
 
    /* Did we do it already? */
    if (CurrentLocaleConvValid)
        return &CurrentLocaleConv;
 
    /* Free any already-allocated storage */
    if (CurrentLocaleConvAllocated)
    {
        free_struct_lconv(&CurrentLocaleConv);
        CurrentLocaleConvAllocated = false;
    }
 
    /*
     * Use thread-safe method of obtaining a copy of lconv from the operating
     * system.
     */
    if (pg_localeconv_r(locale_monetary,
                        locale_numeric,
                        &tmp) != 0)
        elog(ERROR,
             "could not get lconv for LC_MONETARY = \"%s\", LC_NUMERIC = \"%s\": %m",
             locale_monetary, locale_numeric);
 
    /* Must copy data now so we can re-encode it. */
    extlconv = &tmp;
    worklconv.decimal_point = strdup(extlconv->decimal_point);
    worklconv.thousands_sep = strdup(extlconv->thousands_sep);
    worklconv.grouping = strdup(extlconv->grouping);
    worklconv.int_curr_symbol = strdup(extlconv->int_curr_symbol);
    worklconv.currency_symbol = strdup(extlconv->currency_symbol);
    worklconv.mon_decimal_point = strdup(extlconv->mon_decimal_point);
    worklconv.mon_thousands_sep = strdup(extlconv->mon_thousands_sep);
    worklconv.mon_grouping = strdup(extlconv->mon_grouping);
    worklconv.positive_sign = strdup(extlconv->positive_sign);
    worklconv.negative_sign = strdup(extlconv->negative_sign);
    /* Copy scalar fields as well */
    worklconv.int_frac_digits = extlconv->int_frac_digits;
    worklconv.frac_digits = extlconv->frac_digits;
    worklconv.p_cs_precedes = extlconv->p_cs_precedes;
    worklconv.p_sep_by_space = extlconv->p_sep_by_space;
    worklconv.n_cs_precedes = extlconv->n_cs_precedes;
    worklconv.n_sep_by_space = extlconv->n_sep_by_space;
    worklconv.p_sign_posn = extlconv->p_sign_posn;
    worklconv.n_sign_posn = extlconv->n_sign_posn;
 
    /* Free the contents of the object populated by pg_localeconv_r(). */
    pg_localeconv_free(&tmp);
 
    /* If any of the preceding strdup calls failed, complain now. */
    if (!struct_lconv_is_valid(&worklconv))
        ereport(ERROR,
                (errcode(ERRCODE_OUT_OF_MEMORY),
                 errmsg("out of memory")));
 
    PG_TRY();
    {
        int         encoding;
 
        /*
         * Now we must perform encoding conversion from whatever's associated
         * with the locales into the database encoding.  If we can't identify
         * the encoding implied by LC_NUMERIC or LC_MONETARY (ie we get -1),
         * use PG_SQL_ASCII, which will result in just validating that the
         * strings are OK in the database encoding.
         */
        encoding = pg_get_encoding_from_locale(locale_numeric, true);
        if (encoding < 0)
            encoding = PG_SQL_ASCII;
 
        db_encoding_convert(encoding, &worklconv.decimal_point);
        db_encoding_convert(encoding, &worklconv.thousands_sep);
        /* grouping is not text and does not require conversion */
 
        encoding = pg_get_encoding_from_locale(locale_monetary, true);
        if (encoding < 0)
            encoding = PG_SQL_ASCII;
 
        db_encoding_convert(encoding, &worklconv.int_curr_symbol);
        db_encoding_convert(encoding, &worklconv.currency_symbol);
        db_encoding_convert(encoding, &worklconv.mon_decimal_point);
        db_encoding_convert(encoding, &worklconv.mon_thousands_sep);
        /* mon_grouping is not text and does not require conversion */
        db_encoding_convert(encoding, &worklconv.positive_sign);
        db_encoding_convert(encoding, &worklconv.negative_sign);
    }
    PG_CATCH();
    {
        free_struct_lconv(&worklconv);
        PG_RE_THROW();
    }
    PG_END_TRY();
 
    /*
     * Everything is good, so save the results.
     */
    CurrentLocaleConv = worklconv;
    CurrentLocaleConvAllocated = true;
    CurrentLocaleConvValid = true;
    return &CurrentLocaleConv;
}

References CurrentLocaleConvValid, db_encoding_convert(), elog, encoding, ereport, errcode(), errmsg(), ERROR, free_struct_lconv(), locale_monetary, locale_numeric, PG_CATCH, PG_END_TRY, pg_get_encoding_from_locale(), pg_localeconv_free(), pg_localeconv_r(), PG_RE_THROW, PG_SQL_ASCII, PG_TRY, and struct_lconv_is_valid().

Referenced by cash_in(), cash_numeric(), cash_out(), int4_cash(), int8_cash(), NUM_prepare_locale(), and numeric_cash().

◆ strlower_c()

static size_t strlower_c	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen
	)

static

Definition at line 1265 of file pg_locale.c.

{
    int         i;
 
    srclen = (srclen >= 0) ? srclen : strlen(src);
    for (i = 0; i < srclen && i < dstsize; i++)
        dst[i] = pg_ascii_tolower(src[i]);
    if (i < dstsize)
        dst[i] = '\0';
    return srclen;
}

References i, and pg_ascii_tolower().

Referenced by pg_downcase_ident(), pg_strfold(), and pg_strlower().

◆ strtitle_c()

static size_t strtitle_c	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen
	)

static

Definition at line 1279 of file pg_locale.c.

{
    bool        wasalnum = false;
    int         i;
 
    srclen = (srclen >= 0) ? srclen : strlen(src);
    for (i = 0; i < srclen && i < dstsize; i++)
    {
        char        c = src[i];
 
        if (wasalnum)
            dst[i] = pg_ascii_tolower(c);
        else
            dst[i] = pg_ascii_toupper(c);
 
        wasalnum = ((c >= '0' && c <= '9') ||
                    (c >= 'A' && c <= 'Z') ||
                    (c >= 'a' && c <= 'z'));
    }
    if (i < dstsize)
        dst[i] = '\0';
    return srclen;
}

References i, pg_ascii_tolower(), and pg_ascii_toupper().

Referenced by pg_strtitle().

◆ struct_lconv_is_valid()

static bool struct_lconv_is_valid ( struct lconv * s )

static

Definition at line 445 of file pg_locale.c.

{
    if (s->decimal_point == NULL)
        return false;
    if (s->thousands_sep == NULL)
        return false;
    if (s->grouping == NULL)
        return false;
    if (s->int_curr_symbol == NULL)
        return false;
    if (s->currency_symbol == NULL)
        return false;
    if (s->mon_decimal_point == NULL)
        return false;
    if (s->mon_thousands_sep == NULL)
        return false;
    if (s->mon_grouping == NULL)
        return false;
    if (s->positive_sign == NULL)
        return false;
    if (s->negative_sign == NULL)
        return false;
    return true;
}

Referenced by PGLC_localeconv().

◆ strupper_c()

static size_t strupper_c	(	char *	dst,
		size_t	dstsize,
		const char *	src,
		ssize_t	srclen
	)

static

Definition at line 1305 of file pg_locale.c.

{
    int         i;
 
    srclen = (srclen >= 0) ? srclen : strlen(src);
    for (i = 0; i < srclen && i < dstsize; i++)
        dst[i] = pg_ascii_toupper(src[i]);
    if (i < dstsize)
        dst[i] = '\0';
    return srclen;
}

References i, and pg_ascii_toupper().

Referenced by pg_strupper().

Variable Documentation

◆ c_locale

struct pg_locale_struct c_locale

static

Initial value:

= {
    .deterministic = true,
    .collate_is_c = true,
    .ctype_is_c = true,
}

Definition at line 112 of file pg_locale.c.

Referenced by pg_newlocale_from_collation().

◆ CollationCache

collation_cache_hash* CollationCache = NULL

static

Definition at line 144 of file pg_locale.c.

Referenced by pg_newlocale_from_collation().

◆ CollationCacheContext

MemoryContext CollationCacheContext = NULL

static

Definition at line 143 of file pg_locale.c.

Referenced by pg_newlocale_from_collation().

◆ CurrentLCTimeValid

bool CurrentLCTimeValid = false

static

Definition at line 110 of file pg_locale.c.

Referenced by assign_locale_time(), and cache_locale_time().

◆ CurrentLocaleConvValid

bool CurrentLocaleConvValid = false

static

Definition at line 109 of file pg_locale.c.

Referenced by assign_locale_monetary(), assign_locale_numeric(), and PGLC_localeconv().

◆ default_locale

pg_locale_t default_locale = NULL

static

Definition at line 106 of file pg_locale.c.

Referenced by init_database_collation(), pg_downcase_ident(), and pg_newlocale_from_collation().

◆ icu_validation_level

int icu_validation_level = WARNING

Definition at line 92 of file pg_locale.c.

Referenced by createdb(), DefineCollation(), and icu_validate_locale().

◆ last_collation_cache_locale

pg_locale_t last_collation_cache_locale = NULL

static

Definition at line 151 of file pg_locale.c.

Referenced by pg_newlocale_from_collation().

◆ last_collation_cache_oid

Oid last_collation_cache_oid = InvalidOid

static

Definition at line 150 of file pg_locale.c.

Referenced by pg_newlocale_from_collation().

◆ locale_messages

char* locale_messages

Definition at line 87 of file pg_locale.c.

◆ locale_monetary

char* locale_monetary

Definition at line 88 of file pg_locale.c.

Referenced by PGLC_localeconv().

◆ locale_numeric

char* locale_numeric

Definition at line 89 of file pg_locale.c.

Referenced by PGLC_localeconv().

◆ locale_time

char* locale_time

Definition at line 90 of file pg_locale.c.

Referenced by cache_locale_time().

◆ localized_abbrev_days

char* localized_abbrev_days[7+1]

Definition at line 101 of file pg_locale.c.

Referenced by cache_locale_time(), DCH_from_char(), and DCH_to_char().

◆ localized_abbrev_months

char* localized_abbrev_months[12+1]

Definition at line 103 of file pg_locale.c.

Referenced by cache_locale_time(), DCH_from_char(), and DCH_to_char().

◆ localized_full_days

char* localized_full_days[7+1]

Definition at line 102 of file pg_locale.c.

Referenced by cache_locale_time(), DCH_from_char(), and DCH_to_char().

◆ localized_full_months

char* localized_full_months[12+1]

Definition at line 104 of file pg_locale.c.

Referenced by cache_locale_time(), DCH_from_char(), and DCH_to_char().

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ MAX_L10N_DATA

◆ PGLOCALE_SUPPORT_ERROR

◆ SH_DECLARE

◆ SH_DEFINE

◆ SH_ELEMENT_TYPE

◆ SH_EQUAL

◆ SH_GET_HASH

◆ SH_HASH_KEY

◆ SH_KEY

◆ SH_KEY_TYPE

◆ SH_PREFIX

◆ SH_SCOPE

◆ SH_STORE_HASH

◆ TEXTBUFLEN

Function Documentation

◆ assign_locale_messages()

◆ assign_locale_monetary()

◆ assign_locale_numeric()

◆ assign_locale_time()

◆ builtin_locale_encoding()

◆ builtin_validate_locale()

◆ cache_locale_time()

◆ cache_single_string()

◆ check_locale()

◆ check_locale_messages()

◆ check_locale_monetary()

◆ check_locale_numeric()

◆ check_locale_time()

◆ create_pg_locale()

◆ create_pg_locale_builtin()

◆ create_pg_locale_icu()

◆ create_pg_locale_libc()

◆ db_encoding_convert()

◆ free_struct_lconv()

◆ get_collation_actual_version()

◆ get_collation_actual_version_builtin()

◆ get_collation_actual_version_libc()

◆ icu_language_tag()

◆ icu_validate_locale()

◆ init_database_collation()

◆ pg_database_locale()

◆ pg_downcase_ident()

◆ pg_icu_unicode_version()

◆ pg_iswalnum()

◆ pg_iswalpha()

◆ pg_iswcased()

◆ pg_iswdigit()

◆ pg_iswgraph()

◆ pg_iswlower()

◆ pg_iswprint()

◆ pg_iswpunct()

◆ pg_iswspace()

◆ pg_iswupper()

◆ pg_iswxdigit()

◆ pg_newlocale_from_collation()

◆ pg_perm_setlocale()

◆ pg_strcoll()

◆ pg_strfold()

◆ pg_strlower()

◆ pg_strncoll()

◆ pg_strnxfrm()

◆ pg_strnxfrm_prefix()

◆ pg_strtitle()

◆ pg_strupper()

◆ pg_strxfrm()

◆ pg_strxfrm_enabled()

◆ pg_strxfrm_prefix()

◆ pg_strxfrm_prefix_enabled()

◆ pg_towlower()

◆ pg_towupper()

◆ PGLC_localeconv()

◆ strlower_c()

◆ strtitle_c()

◆ struct_lconv_is_valid()

◆ strupper_c()