malmo::ArgumentParser Class Reference

A general purpose command-line argument parser. More...

#include <ArgumentParser.h>

Inheritance diagram for malmo::ArgumentParser:

Public Member Functions
	ArgumentParser (const std::string &title)
	Construct an argument parser. More...
void	parseArgs (int argc, const char **argv)
	Parses a list of strings given in the C style. Throws std::exception if parsing fails. More...
void	parse (const std::vector< std::string > &args)
	Parses a list of strings. Throws std::exception if parsing fails. More...
void	addOptionalIntArgument (const std::string &name, const std::string &description, int defaultValue)
	Specify an integer argument that can be given on the command line. More...
void	addOptionalFloatArgument (const std::string &name, const std::string &description, double defaultValue)
	Specify a floating-point argument that can be given on the command line. More...
void	addOptionalStringArgument (const std::string &name, const std::string &description, const std::string &defaultValue)
	Specify a string argument that can be given on the command line. More...
void	addOptionalFlag (const std::string &name, const std::string &description)
	Specify a boolean flag that can be given on the command line. More...
std::string	getUsage () const
	Gets a string that describes the current set of options we expect. More...
bool	receivedArgument (const std::string &name) const
	Gets whether a named argument was parsed on the command-line arguments. More...
int	getIntArgument (const std::string &name) const
	Retrieves the value of a named integer argument. More...
double	getFloatArgument (const std::string &name) const
	Retrieves the value of a named floating-point argument. More...
std::string	getStringArgument (const std::string &name) const
	Retrieves the value of a named string argument. More...

Detailed Description

A general purpose command-line argument parser.

Constructor & Destructor Documentation

malmo::ArgumentParser::ArgumentParser

(

const std::string &

title

)

Construct an argument parser.

Parameters

title

The title of the program to display.

Member Function Documentation

void malmo::ArgumentParser::addOptionalFlag	(	const std::string &	name,
		const std::string &	description
	)

Specify a boolean flag that can be given on the command line.

Parameters

name	The name of the flag. To be given as "--name"
description	The explanation of the flag that can be printed out.

void malmo::ArgumentParser::addOptionalFloatArgument	(	const std::string &	name,
		const std::string &	description,
		double	defaultValue
	)

Specify a floating-point argument that can be given on the command line.

Parameters

name	The name of the argument. To be given as "--name <value>"
description	The explanation of the argument that can be printed out.
defaultValue	The value that this argument should have if not given on the command line.

void malmo::ArgumentParser::addOptionalIntArgument	(	const std::string &	name,
		const std::string &	description,
		int	defaultValue
	)

Specify an integer argument that can be given on the command line.

Parameters

name	The name of the argument. To be given as "--name <value>"
description	The explanation of the argument that can be printed out.
defaultValue	The value that this argument should have if not given on the command line.

void malmo::ArgumentParser::addOptionalStringArgument	(	const std::string &	name,
		const std::string &	description,
		const std::string &	defaultValue
	)

Specify a string argument that can be given on the command line.

Parameters

name	The name of the argument. To be given as "--name <value>"
description	The explanation of the argument that can be printed out.
defaultValue	The value that this argument should have if not given on the command line.

double malmo::ArgumentParser::getFloatArgument

(

const std::string &

name

)

const

Retrieves the value of a named floating-point argument.

Parameters

name	The name of the argument.

Returns

The value of the named argument.

int malmo::ArgumentParser::getIntArgument

(

const std::string &

name

)

const

Retrieves the value of a named integer argument.

Parameters

name	The name of the argument.

Returns

The value of the named argument.

std::string malmo::ArgumentParser::getStringArgument

(

const std::string &

name

)

const

Retrieves the value of a named string argument.

Parameters

name	The name of the argument.

Returns

The value of the named argument.

std::string malmo::ArgumentParser::getUsage

(

)

const

Gets a string that describes the current set of options we expect.

Returns

The usage string, for displaying.

void malmo::ArgumentParser::parse

(

const std::vector< std::string > &

args

)

Parses a list of strings. Throws std::exception if parsing fails.

In C++: takes a std::vector<std::string>. In Python: takes a list of strings. In Lua: takes a table of strings.

Parameters

args	The arguments to parse.

void malmo::ArgumentParser::parseArgs	(	int	argc,
		const char **	argv
	)

Parses a list of strings given in the C style. Throws std::exception if parsing fails.

Available in C++ only. In other languages use the parse function instead.

Parameters

argc	The number of arguments.
argv	The arguments to parse.

See also

parse()

bool malmo::ArgumentParser::receivedArgument

(

const std::string &

name

)

const

Gets whether a named argument was parsed on the command-line arguments.

Parameters

name	The name of the argument.

Returns

True if the named argument was received.

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

• Malmo/src/ArgumentParser.h