command_args.h

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// g2o - General Graph Optimization
// Copyright (C) 2011 R. Kuemmerle, G. Grisetti, W. Burgard
// 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.
//
// 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
// HOLDER 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
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef G2O_COMMAND_ARGS_H
#define G2O_COMMAND_ARGS_H

#include <string>
#include <vector>
#include <iostream>
#include <sstream>

#include "g2o_stuff_api.h"

namespace g2o {

class G2O_STUFF_API CommandArgs
{
  public:
    struct CommandArgument
    {
      std::string name;
      std::string description;
      int type;
      void* data;
      bool parsed;
      bool optional;
      CommandArgument() : name(""), description(""), type(0), data(0), parsed(false), optional(false)
      {}
    };
  public:
    CommandArgs();
    virtual ~CommandArgs();

    bool parseArgs(int argc, char** argv, bool exitOnError = true);

    void param(const std::string& name, bool& p, bool defValue, const std::string& desc);
    void param(const std::string& name, int& p, int defValue, const std::string& desc);
    void param(const std::string& name, float& p, float defValue, const std::string& desc);
    void param(const std::string& name, double& p, double defValue, const std::string& desc);
    void param(const std::string& name, std::string& p, const std::string& defValue, const std::string& desc);
    void param(const std::string& name, std::vector<int>& p, const std::vector<int>& defValue, const std::string& desc);
    void param(const std::string& name, std::vector<double>& p, const std::vector<double>& defValue, const std::string& desc);
    void paramLeftOver(const std::string& name, std::string& p, const std::string& defValue, const std::string& desc, bool optional = false);

    void printParams(std::ostream& os);

    const std::string& getBanner() const { return _banner; }
    void setBanner(const std::string& banner);

    void printHelp(std::ostream& os);

    bool parsedParam(const std::string& paramFlag) const;

  protected:
    std::vector<CommandArgument> _args;
    std::vector<CommandArgument> _leftOvers;
    std::vector<CommandArgument> _leftOversOptional;
    std::string _banner;
    std::string _progName;

    const char* type2str(int t) const;
    void str2arg(const std::string& input, CommandArgument& ca) const;
    std::string arg2str(const CommandArgument& ca) const;

    std::string trim(const std::string& s) const;
};

} // end namespace

#endif