text: 
  //
  // This source file is part of appleseed.
  // Visit https://appleseedhq.net/ for additional information and resources.
  //
  // This software is released under the MIT license.
  //
  // Copyright (c) 2010-2013 Francois Beaune, Jupiter Jazz Limited
  // Copyright (c) 2014-2018 Francois Beaune, The appleseedhq Organization
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in
  // all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  // THE SOFTWARE.
  //
  
  #pragma once
  
  // appleseed.shared headers.
  #include "application/commandlinehandlerbase.h"
  
  // appleseed.foundation headers.
  #include "foundation/platform/types.h"
  #include "foundation/utility/commandlineparser.h"
  
  // Standard headers.
  #include <string>
  
  // Forward declarations.
  namespace appleseed { namespace shared { class SuperLogger; } }
  
  namespace appleseed {
  namespace cli {
  
  //
  // Command line handler.
  //
  
  class CommandLineHandler
    : public shared::CommandLineHandlerBase
  {
    public:
      // Input file.
      foundation::ValueOptionHandler<std::string>         m_filename;
  
      // General options.
      foundation::ValueOptionHandler<std::string>         m_configuration;
      foundation::ValueOptionHandler<std::string>         m_params;
  
      // Aliases for rendering options.
      foundation::ValueOptionHandler<std::string>         m_threads;  // std::string because we need to handle 'auto'
      foundation::ValueOptionHandler<int>                 m_resolution;
      foundation::ValueOptionHandler<int>                 m_window;
      foundation::ValueOptionHandler<foundation::uint32>  m_noise_seed;
      foundation::ValueOptionHandler<int>                 m_samples;
      foundation::ValueOptionHandler<int>                 m_passes;
      foundation::ValueOptionHandler<std::string>         m_override_shading;
      foundation::ValueOptionHandler<std::string>         m_show_object_instances;
      foundation::ValueOptionHandler<std::string>         m_hide_object_instances;
  
      // Output options.
      foundation::ValueOptionHandler<std::string>         m_output;
  #if defined __APPLE__ || defined _WIN32
      foundation::FlagOptionHandler                       m_display_output;
  #endif
      foundation::FlagOptionHandler                       m_send_to_stdout;
      foundation::FlagOptionHandler                       m_send_to_mplay;
      foundation::ValueOptionHandler<int>                 m_send_to_hrmanpipe;
      foundation::FlagOptionHandler                       m_disable_autosave;
      foundation::ValueOptionHandler<std::string>         m_save_light_paths;
  
      // Developer-oriented options.
      foundation::ValueOptionHandler<std::string>         m_run_unit_tests;
      foundation::ValueOptionHandler<std::string>         m_run_unit_benchmarks;
      foundation::FlagOptionHandler                       m_verbose_unit_tests;
      foundation::FlagOptionHandler                       m_benchmark_mode;
  
      // Constructor.
      CommandLineHandler();
  
    private:
      // Emit usage instructions to the logger.
      void print_program_usage(
          const char*             executable_name,
          shared::SuperLogger&    logger) const override;
  };
  
  }   // namespace cli
  }   // namespace appleseed
  