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// Copyright 2010 The Kyua Authors.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// 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.
// * Neither the name of Google Inc. nor the names of its contributors
//   may be used to endorse or promote products derived from this software
//   without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

/// \file cli/cmd_help.hpp
/// Provides the cmd_help class.

#if !defined(CLI_CMD_HELP_HPP)
#define CLI_CMD_HELP_HPP

#include "cli/common.hpp"
#include "utils/cmdline/commands_map_fwd.hpp"

namespace cli {


/// Implementation of the "help" subcommand.
class cmd_help : public cli_command
{
    /// The set of program-wide options for which to provide help.
    const utils::cmdline::options_vector* _options;

    /// The set of commands for which to provide help.
    const utils::cmdline::commands_map< cli_command >* _commands;

public:
    cmd_help(const utils::cmdline::options_vector*,
             const utils::cmdline::commands_map< cli_command >*);

    int run(utils::cmdline::ui*, const utils::cmdline::parsed_cmdline&,
            const utils::config::tree&);
};


}  // namespace cli


#endif  // !defined(CLI_CMD_HELP_HPP)