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#pragma once
#include <getopt.h>
#include <map>
#include <string>
namespace phosphor
{
namespace gpio
{
/** @brief Class - Encapsulates parsing command line options and
* populating arguments
*/
class ArgumentParser
{
public:
ArgumentParser() = delete;
~ArgumentParser() = default;
ArgumentParser(const ArgumentParser&) = delete;
ArgumentParser& operator=(const ArgumentParser&) = delete;
ArgumentParser(ArgumentParser&&) = default;
ArgumentParser& operator=(ArgumentParser&&) = default;
/** @brief Constructs Argument object
*
* @param argc - the main function's argc passed as is
* @param argv - the main function's argv passed as is
* @return Object constructed
*/
ArgumentParser(int argc, char** argv);
/** @brief Given an option, returns its argument(optarg)
*
* @param opt - command line option string
*
* @return argument which is a standard optarg
*/
const std::string& operator[](const std::string& opt);
/** @brief Displays usage
*
* @param argv - the main function's argv passed as is
*/
static void usage(char** argv);
/** @brief Set to 'true' when an option is passed */
static const std::string trueString;
/** @brief Set to '' when an option is not passed */
static const std::string emptyString;
private:
/** @brief Option to argument mapping */
std::map<const std::string, std::string> arguments;
/** @brief Array of struct options as needed by getopt_long */
static const option options[];
/** @brief optstring as needed by getopt_long */
static const char* optionStr;
};
} // namespace gpio
} // namespace phosphor
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