diff options
Diffstat (limited to 'contrib/tsearch2/ts_locale.c')
| -rw-r--r-- | contrib/tsearch2/ts_locale.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/contrib/tsearch2/ts_locale.c b/contrib/tsearch2/ts_locale.c deleted file mode 100644 index cb022d7e2a4..00000000000 --- a/contrib/tsearch2/ts_locale.c +++ /dev/null @@ -1,191 +0,0 @@ -#include "ts_locale.h" - -#include "utils/builtins.h" -#include "utils/pg_locale.h" -#include "mb/pg_wchar.h" - - -#ifdef TS_USE_WIDE - -#ifdef WIN32 - -size_t -wchar2char(char *to, const wchar_t *from, size_t len) -{ - if (len == 0) - return 0; - - if (GetDatabaseEncoding() == PG_UTF8) - { - int r; - - r = WideCharToMultiByte(CP_UTF8, 0, from, -1, to, len, - NULL, NULL); - - if (r == 0) - ereport(ERROR, - (errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE), - errmsg("UTF-16 to UTF-8 translation failed: %lu", - GetLastError()))); - Assert(r <= len); - - return r; - } - - return wcstombs(to, from, len); -} -#endif /* WIN32 */ - -size_t -char2wchar(wchar_t *to, const char *from, size_t len) -{ - if (len == 0) - return 0; - -#ifdef WIN32 - if (GetDatabaseEncoding() == PG_UTF8) - { - int r; - - r = MultiByteToWideChar(CP_UTF8, 0, from, len, to, len); - - if (!r) - { - pg_verifymbstr(from, strlen(from), false); - ereport(ERROR, - (errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE), - errmsg("invalid multibyte character for locale"), - errhint("The server's LC_CTYPE locale is probably incompatible with the database encoding."))); - } - - Assert(r <= len); - - return r; - } - else -#endif /* WIN32 */ - if ( lc_ctype_is_c() ) - { - /* - * pg_mb2wchar_with_len always adds trailing '\0', so - * 'to' should be allocated with sufficient space - */ - return pg_mb2wchar_with_len(from, (pg_wchar *)to, len); - } - - return mbstowcs(to, from, len); -} - -int -_t_isalpha(const char *ptr) -{ - wchar_t character[2]; - - if (lc_ctype_is_c()) - return isalpha(TOUCHAR(ptr)); - - char2wchar(character, ptr, 1); - - return iswalpha((wint_t) *character); -} - -int -_t_isprint(const char *ptr) -{ - wchar_t character[2]; - - if (lc_ctype_is_c()) - return isprint(TOUCHAR(ptr)); - - char2wchar(character, ptr, 1); - - return iswprint((wint_t) *character); -} -#endif /* TS_USE_WIDE */ - -char * -lowerstr(char *str) -{ - char *ptr = str; - char *out; - int len = strlen(str); - - if ( len == 0 ) - return pstrdup(""); - -#ifdef TS_USE_WIDE - - /* - * Use wide char code only when max encoding length > 1 and ctype != C. - * Some operating systems fail with multi-byte encodings and a C locale. - * Also, for a C locale there is no need to process as multibyte. From - * backend/utils/adt/oracle_compat.c Teodor - */ - if (pg_database_encoding_max_length() > 1 && !lc_ctype_is_c()) - { - wchar_t *wstr, - *wptr; - int wlen; - - /* - *alloc number of wchar_t for worst case, len contains - * number of bytes <= number of characters and - * alloc 1 wchar_t for 0, because wchar2char(wcstombs in really) - * wants zero-terminated string - */ - wptr = wstr = (wchar_t *) palloc(sizeof(wchar_t) * (len+1)); - - /* - * str SHOULD be cstring, so wlen contains number - * of converted character - */ - wlen = char2wchar(wstr, str, len); - if ( wlen < 0 ) - ereport(ERROR, - (errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE), - errmsg("translation failed from server encoding to wchar_t"))); - - Assert(wlen<=len); - wstr[wlen] = 0; - - while (*wptr) - { - *wptr = towlower((wint_t) *wptr); - wptr++; - } - - /* - * Alloc result string for worst case + '\0' - */ - len = sizeof(char)*pg_database_encoding_max_length()*(wlen+1); - out = (char*)palloc(len); - - /* - * wlen now is number of bytes which is always >= number of characters - */ - wlen = wchar2char(out, wstr, len); - pfree(wstr); - - if ( wlen < 0 ) - ereport(ERROR, - (errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE), - errmsg("translation failed from wchar_t to server encoding %d", errno))); - Assert(wlen<=len); - out[wlen]='\0'; - } - else -#endif - { - char *outptr; - - outptr = out = (char*)palloc( sizeof(char) * (len+1) ); - while (*ptr) - { - *outptr++ = tolower(*(unsigned char *) ptr); - ptr++; - } - *outptr = '\0'; - } - - return out; -} |