Flat options are just added as they are to an outer option sink.

MergeConfig merges a flagset with yaml or json config data.

MergeConfigFile reads a yaml or json config file and merges it into a given flagset.

MergeFlags adds arguments to a flag set.

ParseConfig parses yaml or json data to a list of equivalent command line arguments.

Prefixed options are just added with a name prefix to an outer option sink.

PrefixedShared options are prefixed options that additionally declares a shared flat option on the sink.

ReadConfigFile reads a yaml or json file are parses its content to a list of equivalent command line arguments.

Shared options are flat options that can be shared with other OptionSources (if they are also shared).

OptionCompleter must be impmented by OptionSource to execute code to complete the option set.

OptionEvaluator must be implemented by OptionSource to execute code after option parsing is completed check and evaluate the actual settings .

OptionGroup is a group set of options and option sources offering access to options.

Options is an element offering named options.

OptionSet is an OptionSource that can be used to add arbitrary options, either directly or by adding further nested OptionSource s.

OptionSource is the interface used to add arbitrary options to an OptionSet.

OptionSourceGroup is a modifyable group of OptionSource.

OptionSourceSource is a group of OptionSource.

OptionSourceVisitor is used to visit sources in an OptionGroup.