mirror of
https://github.com/simtactics/niotso.git
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work in progress, cleaned up the directories and split them up into folder which make more sense, Still need to compile libvitaboy and all the tools
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1786 changed files with 571812 additions and 15332 deletions
358
deps/libpq/chklocale.c
vendored
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358
deps/libpq/chklocale.c
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/*-------------------------------------------------------------------------
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*
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* chklocale.c
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* Functions for handling locale-related info
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*
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*
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* Copyright (c) 1996-2011, PostgreSQL Global Development Group
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*
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*
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* IDENTIFICATION
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* src/port/chklocale.c
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef FRONTEND
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#include "postgres.h"
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#else
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#include "postgres_fe.h"
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#endif
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#include <locale.h>
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#ifdef HAVE_LANGINFO_H
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#include <langinfo.h>
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#endif
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#include "mb/pg_wchar.h"
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/*
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* This table needs to recognize all the CODESET spellings for supported
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* backend encodings, as well as frontend-only encodings where possible
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* (the latter case is currently only needed for initdb to recognize
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* error situations). On Windows, we rely on entries for codepage
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* numbers (CPnnn).
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*
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* Note that we search the table with pg_strcasecmp(), so variant
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* capitalizations don't need their own entries.
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*/
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struct encoding_match
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{
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enum pg_enc pg_enc_code;
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const char *system_enc_name;
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};
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static const struct encoding_match encoding_match_list[] = {
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{PG_EUC_JP, "EUC-JP"},
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{PG_EUC_JP, "eucJP"},
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{PG_EUC_JP, "IBM-eucJP"},
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{PG_EUC_JP, "sdeckanji"},
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{PG_EUC_JP, "CP20932"},
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{PG_EUC_CN, "EUC-CN"},
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{PG_EUC_CN, "eucCN"},
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{PG_EUC_CN, "IBM-eucCN"},
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{PG_EUC_CN, "GB2312"},
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{PG_EUC_CN, "dechanzi"},
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{PG_EUC_CN, "CP20936"},
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{PG_EUC_KR, "EUC-KR"},
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{PG_EUC_KR, "eucKR"},
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{PG_EUC_KR, "IBM-eucKR"},
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{PG_EUC_KR, "deckorean"},
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{PG_EUC_KR, "5601"},
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{PG_EUC_KR, "CP51949"},
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{PG_EUC_TW, "EUC-TW"},
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{PG_EUC_TW, "eucTW"},
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{PG_EUC_TW, "IBM-eucTW"},
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{PG_EUC_TW, "cns11643"},
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/* No codepage for EUC-TW ? */
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{PG_UTF8, "UTF-8"},
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{PG_UTF8, "utf8"},
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{PG_UTF8, "CP65001"},
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{PG_LATIN1, "ISO-8859-1"},
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{PG_LATIN1, "ISO8859-1"},
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{PG_LATIN1, "iso88591"},
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{PG_LATIN1, "CP28591"},
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{PG_LATIN2, "ISO-8859-2"},
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{PG_LATIN2, "ISO8859-2"},
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{PG_LATIN2, "iso88592"},
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{PG_LATIN2, "CP28592"},
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{PG_LATIN3, "ISO-8859-3"},
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{PG_LATIN3, "ISO8859-3"},
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{PG_LATIN3, "iso88593"},
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{PG_LATIN3, "CP28593"},
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{PG_LATIN4, "ISO-8859-4"},
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{PG_LATIN4, "ISO8859-4"},
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{PG_LATIN4, "iso88594"},
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{PG_LATIN4, "CP28594"},
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{PG_LATIN5, "ISO-8859-9"},
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{PG_LATIN5, "ISO8859-9"},
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{PG_LATIN5, "iso88599"},
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{PG_LATIN5, "CP28599"},
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{PG_LATIN6, "ISO-8859-10"},
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{PG_LATIN6, "ISO8859-10"},
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{PG_LATIN6, "iso885910"},
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{PG_LATIN7, "ISO-8859-13"},
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{PG_LATIN7, "ISO8859-13"},
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{PG_LATIN7, "iso885913"},
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{PG_LATIN8, "ISO-8859-14"},
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{PG_LATIN8, "ISO8859-14"},
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{PG_LATIN8, "iso885914"},
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{PG_LATIN9, "ISO-8859-15"},
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{PG_LATIN9, "ISO8859-15"},
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{PG_LATIN9, "iso885915"},
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{PG_LATIN9, "CP28605"},
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{PG_LATIN10, "ISO-8859-16"},
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{PG_LATIN10, "ISO8859-16"},
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{PG_LATIN10, "iso885916"},
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{PG_KOI8R, "KOI8-R"},
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{PG_KOI8R, "CP20866"},
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{PG_KOI8U, "KOI8-U"},
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{PG_KOI8U, "CP21866"},
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{PG_WIN866, "CP866"},
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{PG_WIN874, "CP874"},
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{PG_WIN1250, "CP1250"},
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{PG_WIN1251, "CP1251"},
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{PG_WIN1251, "ansi-1251"},
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{PG_WIN1252, "CP1252"},
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{PG_WIN1253, "CP1253"},
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{PG_WIN1254, "CP1254"},
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{PG_WIN1255, "CP1255"},
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{PG_WIN1256, "CP1256"},
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{PG_WIN1257, "CP1257"},
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{PG_WIN1258, "CP1258"},
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{PG_ISO_8859_5, "ISO-8859-5"},
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{PG_ISO_8859_5, "ISO8859-5"},
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{PG_ISO_8859_5, "iso88595"},
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{PG_ISO_8859_5, "CP28595"},
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{PG_ISO_8859_6, "ISO-8859-6"},
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{PG_ISO_8859_6, "ISO8859-6"},
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{PG_ISO_8859_6, "iso88596"},
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{PG_ISO_8859_6, "CP28596"},
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{PG_ISO_8859_7, "ISO-8859-7"},
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{PG_ISO_8859_7, "ISO8859-7"},
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{PG_ISO_8859_7, "iso88597"},
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{PG_ISO_8859_7, "CP28597"},
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{PG_ISO_8859_8, "ISO-8859-8"},
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{PG_ISO_8859_8, "ISO8859-8"},
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{PG_ISO_8859_8, "iso88598"},
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{PG_ISO_8859_8, "CP28598"},
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{PG_SJIS, "SJIS"},
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{PG_SJIS, "PCK"},
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{PG_SJIS, "CP932"},
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{PG_BIG5, "BIG5"},
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{PG_BIG5, "BIG5HKSCS"},
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{PG_BIG5, "Big5-HKSCS"},
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{PG_BIG5, "CP950"},
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{PG_GBK, "GBK"},
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{PG_GBK, "CP936"},
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{PG_UHC, "UHC"},
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{PG_UHC, "CP949"},
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{PG_JOHAB, "JOHAB"},
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{PG_JOHAB, "CP1361"},
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{PG_GB18030, "GB18030"},
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{PG_GB18030, "CP54936"},
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{PG_SHIFT_JIS_2004, "SJIS_2004"},
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{PG_SQL_ASCII, "US-ASCII"},
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{PG_SQL_ASCII, NULL} /* end marker */
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};
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#ifdef WIN32
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/*
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* On Windows, use CP<codepage number> instead of the nl_langinfo() result
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*/
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static char *
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win32_langinfo(const char *ctype)
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{
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char *r;
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char *codepage;
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int ln;
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/*
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* Locale format on Win32 is <Language>_<Country>.<CodePage> . For
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* example, English_USA.1252.
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*/
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codepage = strrchr(ctype, '.');
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if (!codepage)
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return NULL;
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codepage++;
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ln = strlen(codepage);
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r = malloc(ln + 3);
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sprintf(r, "CP%s", codepage);
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return r;
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}
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#endif /* WIN32 */
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#if (defined(HAVE_LANGINFO_H) && defined(CODESET)) || defined(WIN32)
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/*
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* Given a setting for LC_CTYPE, return the Postgres ID of the associated
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* encoding, if we can determine it. Return -1 if we can't determine it.
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*
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* Pass in NULL to get the encoding for the current locale setting.
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* Pass "" to get the encoding selected by the server's environment.
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*
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* If the result is PG_SQL_ASCII, callers should treat it as being compatible
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* with any desired encoding.
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*/
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int
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pg_get_encoding_from_locale(const char *ctype, bool write_message)
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{
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char *sys;
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int i;
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/* Get the CODESET property, and also LC_CTYPE if not passed in */
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if (ctype)
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{
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char *save;
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char *name;
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/* If locale is C or POSIX, we can allow all encodings */
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if (pg_strcasecmp(ctype, "C") == 0 ||
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pg_strcasecmp(ctype, "POSIX") == 0)
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return PG_SQL_ASCII;
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save = setlocale(LC_CTYPE, NULL);
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if (!save)
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return -1; /* setlocale() broken? */
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/* must copy result, or it might change after setlocale */
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save = strdup(save);
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if (!save)
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return -1; /* out of memory; unlikely */
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name = setlocale(LC_CTYPE, ctype);
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if (!name)
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{
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free(save);
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return -1; /* bogus ctype passed in? */
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}
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#ifndef WIN32
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sys = nl_langinfo(CODESET);
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if (sys)
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sys = strdup(sys);
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#else
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sys = win32_langinfo(name);
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#endif
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setlocale(LC_CTYPE, save);
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free(save);
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}
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else
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{
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/* much easier... */
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ctype = setlocale(LC_CTYPE, NULL);
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if (!ctype)
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return -1; /* setlocale() broken? */
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/* If locale is C or POSIX, we can allow all encodings */
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if (pg_strcasecmp(ctype, "C") == 0 ||
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pg_strcasecmp(ctype, "POSIX") == 0)
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return PG_SQL_ASCII;
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#ifndef WIN32
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sys = nl_langinfo(CODESET);
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if (sys)
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sys = strdup(sys);
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#else
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sys = win32_langinfo(ctype);
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#endif
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}
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if (!sys)
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return -1; /* out of memory; unlikely */
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/* Check the table */
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for (i = 0; encoding_match_list[i].system_enc_name; i++)
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{
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if (pg_strcasecmp(sys, encoding_match_list[i].system_enc_name) == 0)
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{
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free(sys);
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return encoding_match_list[i].pg_enc_code;
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}
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}
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/* Special-case kluges for particular platforms go here */
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#ifdef __darwin__
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/*
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* Current OS X has many locales that report an empty string for CODESET,
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* but they all seem to actually use UTF-8.
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*/
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if (strlen(sys) == 0)
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{
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free(sys);
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return PG_UTF8;
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}
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#endif
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/*
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* We print a warning if we got a CODESET string but couldn't recognize
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* it. This means we need another entry in the table.
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*/
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if (write_message)
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{
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#ifdef FRONTEND
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fprintf(stderr, _("could not determine encoding for locale \"%s\": codeset is \"%s\""),
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ctype, sys);
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/* keep newline separate so there's only one translatable string */
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fputc('\n', stderr);
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#else
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ereport(WARNING,
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(errmsg("could not determine encoding for locale \"%s\": codeset is \"%s\"",
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ctype, sys),
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errdetail("Please report this to <pgsql-bugs@postgresql.org>.")));
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#endif
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}
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free(sys);
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return -1;
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}
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#else /* (HAVE_LANGINFO_H && CODESET) || WIN32 */
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/*
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* stub if no multi-language platform support
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*
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* Note: we could return -1 here, but that would have the effect of
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* forcing users to specify an encoding to initdb on such platforms.
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* It seems better to silently default to SQL_ASCII.
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*/
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int
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pg_get_encoding_from_locale(const char *ctype, bool write_message)
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{
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return PG_SQL_ASCII;
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}
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#endif /* (HAVE_LANGINFO_H && CODESET) || WIN32 */
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