argMap is option -> argument (or "" if it is a unary argument) residualArgs are what is left after removing the options and their args.
argMap is option -> argument (or "" if it is a unary argument) residualArgs are what is left after removing the options and their args.
argMap is option -> argument (or "" if it is a unary argument) residualArgs are what is left after removing the options and their args.
argMap is option -> argument (or "" if it is a unary argument) residualArgs are what is left after removing the options and their args.
Configurability simplicity achieved by turning defs into vars and letting the spec creator apply a transformation. This way there's no need to create custom subclasses of CommandLine.