////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
///     http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Esteban Lombeyda
////////////////////////////////////////////////////////////////////////////////

#ifndef ARANGODB_UTILITIES_COMPLETER_H
#define ARANGODB_UTILITIES_COMPLETER_H 1

#include "Basics/Common.h"

namespace arangodb {

////////////////////////////////////////////////////////////////////////////////
/// @brief Completer
////////////////////////////////////////////////////////////////////////////////

class Completer {
 public:
  Completer() {}

  virtual ~Completer() {}

 public:
  //////////////////////////////////////////////////////////////////////////////
  /// @brief check if line is complete
  //////////////////////////////////////////////////////////////////////////////

  virtual bool isComplete(std::string const&, size_t lineno) = 0;

  //////////////////////////////////////////////////////////////////////////////
  /// @brief  computes all strings which begins with the given text
  //////////////////////////////////////////////////////////////////////////////

  virtual std::vector<std::string> alternatives(char const*) = 0;
};
}  // namespace arangodb

#endif