diff options
Diffstat (limited to 'libpq/chklocale.c')
-rw-r--r-- | libpq/chklocale.c | 445 |
1 files changed, 0 insertions, 445 deletions
diff --git a/libpq/chklocale.c b/libpq/chklocale.c deleted file mode 100644 index 3c0ef6a..0000000 --- a/libpq/chklocale.c +++ /dev/null @@ -1,445 +0,0 @@ -/*------------------------------------------------------------------------- - * - * chklocale.c - * Functions for handling locale-related info - * - * - * Copyright (c) 1996-2016, PostgreSQL Global Development Group - * - * - * IDENTIFICATION - * src/port/chklocale.c - * - *------------------------------------------------------------------------- - */ - -#ifndef FRONTEND -#include "postgres.h" -#else -#include "postgres_fe.h" -#endif - -#if defined(WIN32) && (_MSC_VER >= 1900) -#include <windows.h> -#endif - -#include <locale.h> -#ifdef HAVE_LANGINFO_H -#include <langinfo.h> -#endif - -#include "mb/pg_wchar.h" - - -/* - * This table needs to recognize all the CODESET spellings for supported - * backend encodings, as well as frontend-only encodings where possible - * (the latter case is currently only needed for initdb to recognize - * error situations). On Windows, we rely on entries for codepage - * numbers (CPnnn). - * - * Note that we search the table with pg_strcasecmp(), so variant - * capitalizations don't need their own entries. - */ -struct encoding_match -{ - enum pg_enc pg_enc_code; - const char *system_enc_name; -}; - -static const struct encoding_match encoding_match_list[] = { - {PG_EUC_JP, "EUC-JP"}, - {PG_EUC_JP, "eucJP"}, - {PG_EUC_JP, "IBM-eucJP"}, - {PG_EUC_JP, "sdeckanji"}, - {PG_EUC_JP, "CP20932"}, - - {PG_EUC_CN, "EUC-CN"}, - {PG_EUC_CN, "eucCN"}, - {PG_EUC_CN, "IBM-eucCN"}, - {PG_EUC_CN, "GB2312"}, - {PG_EUC_CN, "dechanzi"}, - {PG_EUC_CN, "CP20936"}, - - {PG_EUC_KR, "EUC-KR"}, - {PG_EUC_KR, "eucKR"}, - {PG_EUC_KR, "IBM-eucKR"}, - {PG_EUC_KR, "deckorean"}, - {PG_EUC_KR, "5601"}, - {PG_EUC_KR, "CP51949"}, - - {PG_EUC_TW, "EUC-TW"}, - {PG_EUC_TW, "eucTW"}, - {PG_EUC_TW, "IBM-eucTW"}, - {PG_EUC_TW, "cns11643"}, - /* No codepage for EUC-TW ? */ - - {PG_UTF8, "UTF-8"}, - {PG_UTF8, "utf8"}, - {PG_UTF8, "CP65001"}, - - {PG_LATIN1, "ISO-8859-1"}, - {PG_LATIN1, "ISO8859-1"}, - {PG_LATIN1, "iso88591"}, - {PG_LATIN1, "CP28591"}, - - {PG_LATIN2, "ISO-8859-2"}, - {PG_LATIN2, "ISO8859-2"}, - {PG_LATIN2, "iso88592"}, - {PG_LATIN2, "CP28592"}, - - {PG_LATIN3, "ISO-8859-3"}, - {PG_LATIN3, "ISO8859-3"}, - {PG_LATIN3, "iso88593"}, - {PG_LATIN3, "CP28593"}, - - {PG_LATIN4, "ISO-8859-4"}, - {PG_LATIN4, "ISO8859-4"}, - {PG_LATIN4, "iso88594"}, - {PG_LATIN4, "CP28594"}, - - {PG_LATIN5, "ISO-8859-9"}, - {PG_LATIN5, "ISO8859-9"}, - {PG_LATIN5, "iso88599"}, - {PG_LATIN5, "CP28599"}, - - {PG_LATIN6, "ISO-8859-10"}, - {PG_LATIN6, "ISO8859-10"}, - {PG_LATIN6, "iso885910"}, - - {PG_LATIN7, "ISO-8859-13"}, - {PG_LATIN7, "ISO8859-13"}, - {PG_LATIN7, "iso885913"}, - - {PG_LATIN8, "ISO-8859-14"}, - {PG_LATIN8, "ISO8859-14"}, - {PG_LATIN8, "iso885914"}, - - {PG_LATIN9, "ISO-8859-15"}, - {PG_LATIN9, "ISO8859-15"}, - {PG_LATIN9, "iso885915"}, - {PG_LATIN9, "CP28605"}, - - {PG_LATIN10, "ISO-8859-16"}, - {PG_LATIN10, "ISO8859-16"}, - {PG_LATIN10, "iso885916"}, - - {PG_KOI8R, "KOI8-R"}, - {PG_KOI8R, "CP20866"}, - - {PG_KOI8U, "KOI8-U"}, - {PG_KOI8U, "CP21866"}, - - {PG_WIN866, "CP866"}, - {PG_WIN874, "CP874"}, - {PG_WIN1250, "CP1250"}, - {PG_WIN1251, "CP1251"}, - {PG_WIN1251, "ansi-1251"}, - {PG_WIN1252, "CP1252"}, - {PG_WIN1253, "CP1253"}, - {PG_WIN1254, "CP1254"}, - {PG_WIN1255, "CP1255"}, - {PG_WIN1256, "CP1256"}, - {PG_WIN1257, "CP1257"}, - {PG_WIN1258, "CP1258"}, - - {PG_ISO_8859_5, "ISO-8859-5"}, - {PG_ISO_8859_5, "ISO8859-5"}, - {PG_ISO_8859_5, "iso88595"}, - {PG_ISO_8859_5, "CP28595"}, - - {PG_ISO_8859_6, "ISO-8859-6"}, - {PG_ISO_8859_6, "ISO8859-6"}, - {PG_ISO_8859_6, "iso88596"}, - {PG_ISO_8859_6, "CP28596"}, - - {PG_ISO_8859_7, "ISO-8859-7"}, - {PG_ISO_8859_7, "ISO8859-7"}, - {PG_ISO_8859_7, "iso88597"}, - {PG_ISO_8859_7, "CP28597"}, - - {PG_ISO_8859_8, "ISO-8859-8"}, - {PG_ISO_8859_8, "ISO8859-8"}, - {PG_ISO_8859_8, "iso88598"}, - {PG_ISO_8859_8, "CP28598"}, - - {PG_SJIS, "SJIS"}, - {PG_SJIS, "PCK"}, - {PG_SJIS, "CP932"}, - {PG_SJIS, "SHIFT_JIS"}, - - {PG_BIG5, "BIG5"}, - {PG_BIG5, "BIG5HKSCS"}, - {PG_BIG5, "Big5-HKSCS"}, - {PG_BIG5, "CP950"}, - - {PG_GBK, "GBK"}, - {PG_GBK, "CP936"}, - - {PG_UHC, "UHC"}, - {PG_UHC, "CP949"}, - - {PG_JOHAB, "JOHAB"}, - {PG_JOHAB, "CP1361"}, - - {PG_GB18030, "GB18030"}, - {PG_GB18030, "CP54936"}, - - {PG_SHIFT_JIS_2004, "SJIS_2004"}, - - {PG_SQL_ASCII, "US-ASCII"}, - - {PG_SQL_ASCII, NULL} /* end marker */ -}; - -#ifdef WIN32 -/* - * On Windows, use CP<code page number> instead of the nl_langinfo() result - * - * Visual Studio 2012 expanded the set of valid LC_CTYPE values, so have its - * locale machinery determine the code page. See comments at IsoLocaleName(). - * For other compilers, follow the locale's predictable format. - * - * Visual Studio 2015 should still be able to do the same, but the declaration - * of lc_codepage is missing in _locale_t, causing this code compilation to - * fail, hence this falls back instead on GetLocaleInfoEx. VS 2015 may be an - * exception and post-VS2015 versions should be able to handle properly the - * codepage number using _create_locale(). So, instead of the same logic as - * VS 2012 and VS 2013, this routine uses GetLocaleInfoEx to parse short - * locale names like "de-DE", "fr-FR", etc. If those cannot be parsed correctly - * process falls back to the pre-VS-2010 manual parsing done with - * using <Language>_<Country>.<CodePage> as a base. - * - * Returns a malloc()'d string for the caller to free. - */ -static char * -win32_langinfo(const char *ctype) -{ - char *r = NULL; - -#if (_MSC_VER >= 1700) && (_MSC_VER < 1900) - _locale_t loct = NULL; - - loct = _create_locale(LC_CTYPE, ctype); - if (loct != NULL) - { - r = malloc(16); /* excess */ - if (r != NULL) - sprintf(r, "CP%u", loct->locinfo->lc_codepage); - _free_locale(loct); - } -#else - char *codepage; - -#if (_MSC_VER >= 1900) - uint32 cp; - WCHAR wctype[LOCALE_NAME_MAX_LENGTH]; - - memset(wctype, 0, sizeof(wctype)); - MultiByteToWideChar(CP_ACP, 0, ctype, -1, wctype, LOCALE_NAME_MAX_LENGTH); - - if (GetLocaleInfoEx(wctype, - LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER, - (LPWSTR) &cp, sizeof(cp) / sizeof(WCHAR)) > 0) - { - r = malloc(16); /* excess */ - if (r != NULL) - sprintf(r, "CP%u", cp); - } - else -#endif - { - /* - * Locale format on Win32 is <Language>_<Country>.<CodePage> . For - * example, English_United States.1252. - */ - codepage = strrchr(ctype, '.'); - if (codepage != NULL) - { - int ln; - - codepage++; - ln = strlen(codepage); - r = malloc(ln + 3); - if (r != NULL) - sprintf(r, "CP%s", codepage); - } - - } -#endif - - return r; -} - -#ifndef FRONTEND -/* - * Given a Windows code page identifier, find the corresponding PostgreSQL - * encoding. Issue a warning and return -1 if none found. - */ -int -pg_codepage_to_encoding(UINT cp) -{ - char sys[16]; - int i; - - sprintf(sys, "CP%u", cp); - - /* Check the table */ - for (i = 0; encoding_match_list[i].system_enc_name; i++) - if (pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0) - return encoding_match_list[i].pg_enc_code; - - ereport(WARNING, - (errmsg("could not determine encoding for codeset \"%s\"", sys), - errdetail("Please report this to <pgsql-bugs@postgresql.org>."))); - - return -1; -} -#endif -#endif /* WIN32 */ - -#if (defined(HAVE_LANGINFO_H) && defined(CODESET)) || defined(WIN32) - -/* - * Given a setting for LC_CTYPE, return the Postgres ID of the associated - * encoding, if we can determine it. Return -1 if we can't determine it. - * - * Pass in NULL to get the encoding for the current locale setting. - * Pass "" to get the encoding selected by the server's environment. - * - * If the result is PG_SQL_ASCII, callers should treat it as being compatible - * with any desired encoding. - * - * If running in the backend and write_message is false, this function must - * cope with the possibility that elog() and palloc() are not yet usable. - */ -int -pg_get_encoding_from_locale(const char *ctype, bool write_message) -{ - char *sys; - int i; - - /* Get the CODESET property, and also LC_CTYPE if not passed in */ - if (ctype) - { - char *save; - char *name; - - /* If locale is C or POSIX, we can allow all encodings */ - if (pg_strcasecmp(ctype, "C") == 0 || - pg_strcasecmp(ctype, "POSIX") == 0) - return PG_SQL_ASCII; - - save = setlocale(LC_CTYPE, NULL); - if (!save) - return -1; /* setlocale() broken? */ - /* must copy result, or it might change after setlocale */ - save = strdup(save); - if (!save) - return -1; /* out of memory; unlikely */ - - name = setlocale(LC_CTYPE, ctype); - if (!name) - { - free(save); - return -1; /* bogus ctype passed in? */ - } - -#ifndef WIN32 - sys = nl_langinfo(CODESET); - if (sys) - sys = strdup(sys); -#else - sys = win32_langinfo(name); -#endif - - setlocale(LC_CTYPE, save); - free(save); - } - else - { - /* much easier... */ - ctype = setlocale(LC_CTYPE, NULL); - if (!ctype) - return -1; /* setlocale() broken? */ - - /* If locale is C or POSIX, we can allow all encodings */ - if (pg_strcasecmp(ctype, "C") == 0 || - pg_strcasecmp(ctype, "POSIX") == 0) - return PG_SQL_ASCII; - -#ifndef WIN32 - sys = nl_langinfo(CODESET); - if (sys) - sys = strdup(sys); -#else - sys = win32_langinfo(ctype); -#endif - } - - if (!sys) - return -1; /* out of memory; unlikely */ - - /* Check the table */ - for (i = 0; encoding_match_list[i].system_enc_name; i++) - { - if (pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0) - { - free(sys); - return encoding_match_list[i].pg_enc_code; - } - } - - /* Special-case kluges for particular platforms go here */ - -#ifdef __darwin__ - - /* - * Current OS X has many locales that report an empty string for CODESET, - * but they all seem to actually use UTF-8. - */ - if (strlen(sys) == 0) - { - free(sys); - return PG_UTF8; - } -#endif - - /* - * We print a warning if we got a CODESET string but couldn't recognize - * it. This means we need another entry in the table. - */ - if (write_message) - { -#ifdef FRONTEND - fprintf(stderr, _("could not determine encoding for locale \"%s\": codeset is \"%s\""), - ctype, sys); - /* keep newline separate so there's only one translatable string */ - fputc('\n', stderr); -#else - ereport(WARNING, - (errmsg("could not determine encoding for locale \"%s\": codeset is \"%s\"", - ctype, sys), - errdetail("Please report this to <pgsql-bugs@postgresql.org>."))); -#endif - } - - free(sys); - return -1; -} -#else /* (HAVE_LANGINFO_H && CODESET) || WIN32 */ - -/* - * stub if no multi-language platform support - * - * Note: we could return -1 here, but that would have the effect of - * forcing users to specify an encoding to initdb on such platforms. - * It seems better to silently default to SQL_ASCII. - */ -int -pg_get_encoding_from_locale(const char *ctype, bool write_message) -{ - return PG_SQL_ASCII; -} - -#endif /* (HAVE_LANGINFO_H && CODESET) || WIN32 */ |