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| author | Jeff Davis <jdavis@postgresql.org> | 2023-02-23 10:55:20 -0800 |
|---|---|---|
| committer | Jeff Davis <jdavis@postgresql.org> | 2023-02-23 10:55:20 -0800 |
| commit | d87d548cd0304477413a73e9c1d148fb2d40b50d (patch) | |
| tree | 110613f01e1fc49b20eb95e416227eaf96e469d0 /src/include/utils | |
| parent | e9960732a9618d5f744ff43a09622c9185798760 (diff) | |
| download | postgresql-d87d548cd0304477413a73e9c1d148fb2d40b50d.tar.gz | |
Refactor to add pg_strcoll(), pg_strxfrm(), and variants.
Offers a generally better separation of responsibilities for collation
code. Also, a step towards multi-lib ICU, which should be based on a
clean separation of the routines required for collation providers.
Callers with NUL-terminated strings should call pg_strcoll() or
pg_strxfrm(); callers with strings and their length should call the
variants pg_strncoll() or pg_strnxfrm().
Reviewed-by: Peter Eisentraut, Peter Geoghegan
Discussion: https://postgr.es/m/a581136455c940d7bd0ff482d3a2bd51af25a94f.camel%40j-davis.com
Diffstat (limited to 'src/include/utils')
| -rw-r--r-- | src/include/utils/pg_locale.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/utils/pg_locale.h b/src/include/utils/pg_locale.h index cede43440b..def2b55f94 100644 --- a/src/include/utils/pg_locale.h +++ b/src/include/utils/pg_locale.h @@ -100,6 +100,19 @@ extern void make_icu_collator(const char *iculocstr, extern pg_locale_t pg_newlocale_from_collation(Oid collid); extern char *get_collation_actual_version(char collprovider, const char *collcollate); +extern int pg_strcoll(const char *arg1, const char *arg2, pg_locale_t locale); +extern int pg_strncoll(const char *arg1, size_t len1, + const char *arg2, size_t len2, pg_locale_t locale); +extern bool pg_strxfrm_enabled(pg_locale_t locale); +extern size_t pg_strxfrm(char *dest, const char *src, size_t destsize, + pg_locale_t locale); +extern size_t pg_strnxfrm(char *dest, size_t destsize, const char *src, + size_t srclen, pg_locale_t locale); +extern bool pg_strxfrm_prefix_enabled(pg_locale_t locale); +extern size_t pg_strxfrm_prefix(char *dest, const char *src, size_t destsize, + pg_locale_t locale); +extern size_t pg_strnxfrm_prefix(char *dest, size_t destsize, const char *src, + size_t srclen, pg_locale_t locale); #ifdef USE_ICU extern int32_t icu_to_uchar(UChar **buff_uchar, const char *buff, size_t nbytes); |