adds an argument invoked by an option without -
or --
.
adds an argument invoked by an option without -
or --
.
name in the usage text
adds final check.
adds a command invoked by an option without -
or --
.
adds a command invoked by an option without -
or --
.
name of the command
call this to express failure in custom validation.
adds usage text.
adds an option invoked by -x
or --name
that displays usage text and exits.
adds an option invoked by -x
or --name
that displays usage text and exits.
name of the short option
name of the option
adds an option invoked by --name
that displays usage text and exits.
adds an option invoked by --name
that displays usage text and exits.
name of the option
adds usage text.
adds an option invoked by -x value
or --name value
.
adds an option invoked by -x value
or --name value
.
name of the short option
name of the option
adds an option invoked by --name x
.
adds an option invoked by --name x
.
name of the option
call this to express success in custom validation.
adds an option invoked by -x
or --name
that displays header text and exits.
adds an option invoked by -x
or --name
that displays header text and exits.
name of the short option
name of the option
adds an option invoked by --name
that displays header text and exits.
adds an option invoked by --name
that displays header text and exits.
name of the option