Base module

OptionParser

Command-line option parser.

OptionParser

#include <icy/application.h>

Command-line option parser.

Public Attributes

ReturnNameDescription
std::stringexepath
OptionMapargs

exepath

std::string exepath

args

OptionMap args

Public Methods

ReturnNameDescription
OptionParserParses command-line arguments from argc/argv.
boolhas inlineReturns true if the given option key was present on the command line.
std::stringget inlineReturns the string value associated with the given option key. Returns an empty string if the key was not found.
NumericTypeget inlineReturns the value associated with the given option key, converted to a numeric type.

OptionParser

OptionParser(int argc, char * argv, const char * delim)

Parses command-line arguments from argc/argv.

Parameters

  • argc Argument count from main().

  • argv Argument vector from main().

  • delim Prefix string that identifies an option key (e.g. "--").


has

inline

inline bool has(const char * key)

Returns true if the given option key was present on the command line.

Parameters

  • key Option key to look up (without delimiter prefix).

Returns

True if the key exists in the parsed argument map.


get

inline

inline std::string get(const char * key)

Returns the string value associated with the given option key. Returns an empty string if the key was not found.

Parameters

  • key Option key to look up.

Returns

Value string, or empty string if not present.


get

inline

template<typename NumericType> inline NumericType get(const char * key)

Returns the value associated with the given option key, converted to a numeric type.

Parameters

  • NumericType Integral or floating-point type to convert the value to.

Parameters

  • key Option key to look up.

Returns

Converted numeric value.