hermes::ArgParser Class Reference

Command line argument parser. More...

#include <arg_parser.h>

Public Member Functions
	ArgParser (std::string bin="", std::string description="")
	Constructor.
bool	parse (int argc, const char **argv, bool verbose_parsing=false)
	Parse program arguments.
void	addArgument (const std::string &name, const std::string &description="", bool is_required=false)
	Define program argument.
template<typename T >
T	get (const std::string &name, const T &default_value={}) const
	Get argument value.
template<typename T >
std::vector< T >	getList (const std::string &name, const std::vector< T > &default_value={}) const
	Get argument value as list.
bool	check (const std::string &name) const
	Checks if an argument was given.
void	printHelp () const
	Output help into stdout.

Detailed Description

Command line argument parser.

• Example:

  int main(int argc, char** argv) {
      hermes::ArgParser parser("my program", "description");
      // define a simple float argument
      parser.addArgument("float_argument", "description");
      // an required argument
      parser.addArgument("int_argument", "description", true);
      // parse arguments
      parser.parse(argc, argv);
      // access argument value with default value
      parser.get<int>("int_argument", 0);
      // check if argument was given
      bool b = parser.check("float_argument");
  }

Constructor & Destructor Documentation

ArgParser()

hermes::ArgParser::ArgParser ( std::string  bin = "", std::string  description = ""  )

explicit

Constructor.

Parameters

bin	executable name
description	program description

Member Function Documentation

addArgument()

void hermes::ArgParser::addArgument	(	const std::string &	name,
		const std::string &	description = "",
		bool	is_required = false
	)

Define program argument.

Parameters

name
description
is_required

check()

bool hermes::ArgParser::check

(

const std::string &

name

)

const

Checks if an argument was given.

Parameters

name	argument's name

Returns

true if argument was given

get()

template<typename T >

T hermes::ArgParser::get ( const std::string &  name, const T &  default_value = {}  ) const

inline

Get argument value.

Template Parameters

T

Parameters

name
default_value

Returns

getList()

template<typename T >

std::vector< T > hermes::ArgParser::getList ( const std::string &  name, const std::vector< T > &  default_value = {}  ) const

inline

Get argument value as list.

Template Parameters

T	list data type

Parameters

name
default_value

Returns

parse()

bool hermes::ArgParser::parse	(	int	argc,
		const char **	argv,
		bool	verbose_parsing = false
	)

Parse program arguments.

Parameters

argc
argv
verbose_parsing

---

The documentation for this class was generated from the following files:

• hermes/common/arg_parser.h
• hermes/common/arg_parser.cpp