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// stop_words.h
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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.
*/
#pragma once
#include <set>
#include <string>
#include "mongo/db/fts/fts_language.h"
#include "mongo/util/string_map.h"
namespace mongo {
namespace fts {
class StopWords {
MONGO_DISALLOW_COPYING(StopWords);
public:
StopWords();
StopWords(const std::set<std::string>& words);
bool isStopWord(StringData word) const {
return _words.find(word) != _words.end();
}
size_t numStopWords() const {
return _words.size();
}
static const StopWords* getStopWords(const FTSLanguage* language);
private:
StringMap<bool> _words; // Used as a set. The values have no meaning.
};
}
}
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