diff options
Diffstat (limited to 'src/backend/utils/adt/pg_locale.c')
| -rw-r--r-- | src/backend/utils/adt/pg_locale.c | 123 |
1 files changed, 45 insertions, 78 deletions
diff --git a/src/backend/utils/adt/pg_locale.c b/src/backend/utils/adt/pg_locale.c index a858f27cadc..97c2ac1faf9 100644 --- a/src/backend/utils/adt/pg_locale.c +++ b/src/backend/utils/adt/pg_locale.c @@ -41,11 +41,11 @@ #include "mb/pg_wchar.h" #include "miscadmin.h" #include "utils/builtins.h" -#include "utils/formatting.h" #include "utils/guc_hooks.h" #include "utils/lsyscache.h" #include "utils/memutils.h" #include "utils/pg_locale.h" +#include "utils/relcache.h" #include "utils/syscache.h" #ifdef WIN32 @@ -79,31 +79,6 @@ extern pg_locale_t create_pg_locale_icu(Oid collid, MemoryContext context); extern pg_locale_t create_pg_locale_libc(Oid collid, MemoryContext context); extern char *get_collation_actual_version_libc(const char *collcollate); -extern size_t strlower_builtin(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strtitle_builtin(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strupper_builtin(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strfold_builtin(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); - -extern size_t strlower_icu(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strtitle_icu(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strupper_icu(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strfold_icu(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); - -extern size_t strlower_libc(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strtitle_libc(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); -extern size_t strupper_libc(char *dst, size_t dstsize, const char *src, - ssize_t srclen, pg_locale_t locale); - /* GUC settings */ char *locale_messages; char *locale_monetary; @@ -1092,6 +1067,9 @@ create_pg_locale(Oid collid, MemoryContext context) 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) @@ -1256,77 +1234,31 @@ size_t pg_strlower(char *dst, size_t dstsize, const char *src, ssize_t srclen, pg_locale_t locale) { - if (locale->provider == COLLPROVIDER_BUILTIN) - return strlower_builtin(dst, dstsize, src, srclen, locale); -#ifdef USE_ICU - else if (locale->provider == COLLPROVIDER_ICU) - return strlower_icu(dst, dstsize, src, srclen, locale); -#endif - else if (locale->provider == COLLPROVIDER_LIBC) - return strlower_libc(dst, dstsize, src, srclen, locale); - else - /* shouldn't happen */ - PGLOCALE_SUPPORT_ERROR(locale->provider); - - return 0; /* keep compiler quiet */ + return locale->ctype->strlower(dst, dstsize, src, srclen, locale); } size_t pg_strtitle(char *dst, size_t dstsize, const char *src, ssize_t srclen, pg_locale_t locale) { - if (locale->provider == COLLPROVIDER_BUILTIN) - return strtitle_builtin(dst, dstsize, src, srclen, locale); -#ifdef USE_ICU - else if (locale->provider == COLLPROVIDER_ICU) - return strtitle_icu(dst, dstsize, src, srclen, locale); -#endif - else if (locale->provider == COLLPROVIDER_LIBC) - return strtitle_libc(dst, dstsize, src, srclen, locale); - else - /* shouldn't happen */ - PGLOCALE_SUPPORT_ERROR(locale->provider); - - return 0; /* keep compiler quiet */ + return locale->ctype->strtitle(dst, dstsize, src, srclen, locale); } size_t pg_strupper(char *dst, size_t dstsize, const char *src, ssize_t srclen, pg_locale_t locale) { - if (locale->provider == COLLPROVIDER_BUILTIN) - return strupper_builtin(dst, dstsize, src, srclen, locale); -#ifdef USE_ICU - else if (locale->provider == COLLPROVIDER_ICU) - return strupper_icu(dst, dstsize, src, srclen, locale); -#endif - else if (locale->provider == COLLPROVIDER_LIBC) - return strupper_libc(dst, dstsize, src, srclen, locale); - else - /* shouldn't happen */ - PGLOCALE_SUPPORT_ERROR(locale->provider); - - return 0; /* keep compiler quiet */ + return locale->ctype->strupper(dst, dstsize, src, srclen, locale); } size_t pg_strfold(char *dst, size_t dstsize, const char *src, ssize_t srclen, pg_locale_t locale) { - if (locale->provider == COLLPROVIDER_BUILTIN) - return strfold_builtin(dst, dstsize, src, srclen, locale); -#ifdef USE_ICU - else if (locale->provider == COLLPROVIDER_ICU) - return strfold_icu(dst, dstsize, src, srclen, locale); -#endif - /* for libc, just use strlower */ - else if (locale->provider == COLLPROVIDER_LIBC) - return strlower_libc(dst, dstsize, src, srclen, locale); + if (locale->ctype->strfold) + return locale->ctype->strfold(dst, dstsize, src, srclen, locale); else - /* shouldn't happen */ - PGLOCALE_SUPPORT_ERROR(locale->provider); - - return 0; /* keep compiler quiet */ + return locale->ctype->strlower(dst, dstsize, src, srclen, locale); } /* @@ -1464,6 +1396,41 @@ pg_strnxfrm_prefix(char *dest, size_t destsize, const char *src, } /* + * char_is_cased() + * + * Fuzzy test of whether the given char is case-varying or not. The argument + * is a single byte, so in a multibyte encoding, just assume any non-ASCII + * char is case-varying. + */ +bool +char_is_cased(char ch, pg_locale_t locale) +{ + return locale->ctype->char_is_cased(ch, locale); +} + +/* + * char_tolower_enabled() + * + * Does the provider support char_tolower()? + */ +bool +char_tolower_enabled(pg_locale_t locale) +{ + return (locale->ctype->char_tolower != NULL); +} + +/* + * char_tolower() + * + * Convert char (single-byte encoding) to lowercase. + */ +char +char_tolower(unsigned char ch, pg_locale_t locale) +{ + return locale->ctype->char_tolower(ch, locale); +} + +/* * Return required encoding ID for the given locale, or -1 if any encoding is * valid for the locale. */ |