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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _CMD_LINE_PARAMS_H
#define _CMD_LINE_PARAMS_H
#include <vector>
#include <string>
#include <exception>
#include <boost/program_options.hpp>
/**
* @brief Command-line parser
* Serves the same purpose as the getopt library.
*/
class CmdLineParams
{
public:
typedef std::runtime_error unrecognized_option;
public:
/**
* The base constructor sets up the default help and
* version options that should be available on all platforms.
*/
CmdLineParams(int argc, char* argv[]);
~CmdLineParams();
/**
*
*/
void SetUsageDescription(std::string usagedesc) {
usage_desc = usagedesc;
}
/**
* Print out usage information, along with a list of command-line
* options that have been set up for this command-line parser.
*/
void PrintUsage() const;
/**
* @return The used cmdline to start the program.
*/
std::string GetCmdLine() const;
/**
* @return the script or demofile given on the command-line,
* or "" if none was given.
*/
std::string GetInputFile() const;
/**
* @brief add options
* @param shortopt the short (single character) to use (0 for none)
* @param longopt the long (full string) to use (required)
* @param desc a short, human-readable description of this parameter
*/
void AddSwitch(const char shortopt, std::string longopt, std::string desc);
void AddString(const char shortopt, std::string longopt, std::string desc);
void AddInt(const char shortopt, std::string longopt, std::string desc);
/**
* @brief Iterates through and processes arguments
*
* This will read the parameters and search for recognized strings.
*/
void Parse();
/**
* @brief check if commandline flag was set
* @param var the longopt-name of the config flag
*/
bool IsSet(const std::string& var) const;
/**
* @brief Commandline argument as string
* @param var the longopt-name of the config flag
*/
std::string GetString(const std::string& var) const;
/**
* @brief Commandline argument as int
* @param var the longopt-name of the config flag
*/
int GetInt(const std::string& var) const;
protected:
/**
* @brief argument count
*
* Stores the argument count specified at initialization
*/
int argc;
/**
* @brief arguments
*
* Stores the C string array given at initialization
*/
char** argv;
/**
* @brief usage_desc
*
* Stores the C string array given at initialization
*/
std::string usage_desc;
boost::program_options::variables_map vm;
boost::program_options::options_description desc;
boost::program_options::options_description all;
};
#endif // _CMD_LINE_PARAMS_H
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