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//
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// This code manages ar/cpio/tar like file structure that contains
// multiple sections in a file. Each section has a name and size.

#ifndef MOZC_DICTIONARY_FILE_DICTIONARY_FILE_H_
#define MOZC_DICTIONARY_FILE_DICTIONARY_FILE_H_

#include <string>
#include <vector>

#include "base/port.h"
#include "base/scoped_ptr.h"

namespace mozc {
class Mmap;
struct DictionaryFileSection;

class DictionaryFile {
 public:
  DictionaryFile();
  ~DictionaryFile();

  // Open from file
  bool OpenFromFile(const string &file);

  // Open from memory
  bool OpenFromImage(const char* image, int len);

  // Get pointer section from name
  // Image size is set to |len|
  // Return NULL when not found
  const char *GetSection(const string &section_name, int *len) const;

 private:
  // This will be NULL if the mapping source is given as a pointer.
  scoped_ptr<Mmap> mapping_;

  vector<DictionaryFileSection> sections_;

  DISALLOW_COPY_AND_ASSIGN(DictionaryFile);
};
}

#endif  // MOZC_DICTIONARY_FILE_DICTIONARY_FILE_H_