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// fts_language.cpp
/**
* Copyright (C) 2013 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/fts/fts_language.h"
#include <string>
#include "mongo/base/init.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/string_map.h"
#include "mongo/util/stringutils.h"
namespace mongo {
namespace fts {
namespace {
// Supported languages in canonical form (English names, lowercased). Includes "none".
const string LanguageNone( "none" );
const string LanguageDanish( "danish" );
const string LanguageDutch( "dutch" );
const string LanguageEnglish( "english" );
const string LanguageFinnish( "finnish" );
const string LanguageFrench( "french" );
const string LanguageGerman( "german" );
const string LanguageHungarian( "hungarian" );
const string LanguageItalian( "italian" );
const string LanguageNorwegian( "norwegian" );
const string LanguagePortuguese( "portuguese" );
const string LanguageRomanian( "romanian" );
const string LanguageRussian( "russian" );
const string LanguageSpanish( "spanish" );
const string LanguageSwedish( "swedish" );
const string LanguageTurkish( "turkish" );
// Map from lowercased user string to language string. Resolves any language aliases
// (two-letter codes).
typedef StringMap<std::string> LanguageMap;
LanguageMap languageMap;
}
MONGO_INITIALIZER( FTSLanguageMap )( InitializerContext* context ) {
languageMap[LanguageNone] = LanguageNone;
languageMap["da"] = LanguageDanish;
languageMap[LanguageDanish] = LanguageDanish;
languageMap["nl"] = LanguageDutch;
languageMap[LanguageDutch] = LanguageDutch;
languageMap["en"] = LanguageEnglish;
languageMap[LanguageEnglish] = LanguageEnglish;
languageMap["fi"] = LanguageFinnish;
languageMap[LanguageFinnish] = LanguageFinnish;
languageMap["fr"] = LanguageFrench;
languageMap[LanguageFrench] = LanguageFrench;
languageMap["de"] = LanguageGerman;
languageMap[LanguageGerman] = LanguageGerman;
languageMap["hu"] = LanguageHungarian;
languageMap[LanguageHungarian] = LanguageHungarian;
languageMap["it"] = LanguageItalian;
languageMap[LanguageItalian] = LanguageItalian;
languageMap["nb"] = LanguageNorwegian;
languageMap[LanguageNorwegian] = LanguageNorwegian;
languageMap["pt"] = LanguagePortuguese;
languageMap[LanguagePortuguese] = LanguagePortuguese;
languageMap["ro"] = LanguageRomanian;
languageMap[LanguageRomanian] = LanguageRomanian;
languageMap["ru"] = LanguageRussian;
languageMap[LanguageRussian] = LanguageRussian;
languageMap["es"] = LanguageSpanish;
languageMap[LanguageSpanish] = LanguageSpanish;
languageMap["sv"] = LanguageSwedish;
languageMap[LanguageSwedish] = LanguageSwedish;
languageMap["tr"] = LanguageTurkish;
languageMap[LanguageTurkish] = LanguageTurkish;
return Status::OK();
}
FTSLanguage::FTSLanguage()
: _lang() {
}
FTSLanguage::FTSLanguage( const FTSLanguage& other )
: _lang( other._lang ) {
}
FTSLanguage& FTSLanguage::operator=( const FTSLanguage& other ) {
_lang = other._lang;
return *this;
}
FTSLanguage::~FTSLanguage() {
}
Status FTSLanguage::init( const std::string& lang ) {
// Lowercase.
std::string langLower = tolowerString( lang );
// Resolve language aliases.
LanguageMap::const_iterator it = languageMap.find( langLower );
if ( it == languageMap.end() ) {
return Status( ErrorCodes::BadValue,
"unsupported language: \"" + lang + "\"" );
}
_lang = StringData( it->second );
return Status::OK();
}
std::string FTSLanguage::str() const {
verify( !_lang.empty() );
return _lang.toString();
}
StatusWithFTSLanguage FTSLanguage::makeFTSLanguage( const std::string& lang ) {
FTSLanguage language;
Status s = language.init( lang );
if ( !s.isOK() ) {
return StatusWithFTSLanguage( s );
}
return StatusWithFTSLanguage( language );
}
}
}
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