Description:

An option of a command line. Options are read "automatically" using their declaration information defined with externalized strings (resources) accessed through ALib Enum Records associated with enum elements of enum custom types.

However, such automatic read is limited due to the fact, that the simple values and flags defined with OptionDecl, cannot provide the flexibility needed to perfectly parse options with a complex syntax.

In this case, the way out is to use custom code that invokes ReadOptions and then processes all options that may have remaining arguments left in the list. Using field Position further arguments may be consumed from CommandLine::ArgsLeft.
Note, "processing all options" may mean a nested loop. The outer is over the option types of OptionsFound, the inner is over the vector of options per type.

Definition at line 348 of file arguments.inl.

Inheritance diagram for alib::cli::Option:

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Collaboration diagram for alib::cli::Option:

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Public Field Index:
ListMA< String, Recycling::Shared >	Args
	Arguments belonging to this option.

OptionDecl *	Declaration = nullptr
	The declaration struct.

Public Field Index: inherited from alib::cli::Parsed
CommandLine *	CmdLine
	The cli command line.

integer	ConsumedArguments

integer	Position

Public Method Index:
	Option (CommandLine *cmdLine)

ALIB_DLL bool	Read (OptionDecl &decl, String &arg, const integer argNo)

Public Method Index: inherited from alib::cli::Parsed
	Parsed (CommandLine *cmdLine)

Field Details:

◆ Args

ListMA<String, Recycling::Shared> alib::cli::Option::Args

Arguments belonging to this option.

Definition at line 354 of file arguments.inl.

◆ Declaration

OptionDecl* alib::cli::Option::Declaration = nullptr

The declaration struct.

Definition at line 351 of file arguments.inl.

Constructor(s) / Destructor Details:

◆ Option()

alib::cli::Option::Option ( CommandLine * cmdLine )

inline

Constructor

Parameters

cmdLine The command line main object.

Definition at line 464 of file commandline.inl.

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Method Details:

◆ Read()

bool alib::cli::Option::Read	(	OptionDecl &	decl,
		String &	arg,
		const integer	argNo )

Tries to read the object from the current CLI arg(s).

Note: Unlike the read methods Command::Read and Parameter::Read, this method expects the argument to test not only by number with argNo but as well with string parameter arg.
This redundancy is needed to easily implement shortcut options, that just replace a shortcut option read to another one, probably with a preset argument included.