/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2020 Osimis S.A., Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "../OrthancFramework.h"

#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <string>

namespace Orthanc
{
  // Convenience class that wraps a Boost algorithm for string matching
  class ORTHANC_PUBLIC StringMatcher : public boost::noncopyable
  {
  public:
    typedef std::string::const_iterator Iterator;

  private:
    class Search;
      
    boost::shared_ptr<Search>  search_;  // PImpl pattern
    std::string                pattern_;
    bool                       valid_;
    Iterator                   matchBegin_;
    Iterator                   matchEnd_;
    
  public:
    StringMatcher(const std::string& pattern);

    const std::string& GetPattern() const
    {
      return pattern_;
    }

    bool IsValid() const
    {
      return valid_;
    }

    bool Apply(Iterator start,
               Iterator end);

    bool Apply(const std::string& corpus)
    {
      return Apply(corpus.begin(), corpus.end());
    }

    Iterator GetMatchBegin() const;

    Iterator GetMatchEnd() const;

    const char* GetPointerBegin() const;

    const char* GetPointerEnd() const;
  };
}