re2_splitter.hpp

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// Jubatus: Online machine learning framework for distributed environment
// Copyright (C) 2012 Preferred Networks and Nippon Telegraph and Telephone Corporation.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License version 2.1 as published by the Free Software Foundation.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

#ifndef JUBATUS_CORE_FV_CONVERTER_RE2_SPLITTER_HPP_
#define JUBATUS_CORE_FV_CONVERTER_RE2_SPLITTER_HPP_

#include <map>
#include <string>
#include <utility>
#include <vector>
#include <re2/re2.h>
#include "jubatus/util/lang/scoped_ptr.h"
#include "word_splitter.hpp"

namespace jubatus {
namespace core {
namespace fv_converter {

class regexp_splitter : public word_splitter {
 public:
  regexp_splitter(const std::string& regexp, int group);
  void split(
      const std::string& str,
      std::vector<std::pair<size_t, size_t> >& bounds) const;

 private:
  re2::RE2 re_;
  int group_;
};

}  // namespace fv_converter
}  // namespace core
}  // namespace jubatus

#endif  // JUBATUS_CORE_FV_CONVERTER_RE2_SPLITTER_HPP_