class OptionParser::Switch::OptionalArgument

Parent:
self

Switch that can omit argument.

Public Instance Methods

parse(arg, argv, &error) Show source
# File lib/optparse.rb, line 715
def parse(arg, argv, &error)
  if arg
    conv_arg(*parse_arg(arg, &error))
  else
    conv_arg(arg)
  end
end

Parses argument if given, or uses default value.

Ruby Core © 1993–2017 Yukihiro Matsumoto
Licensed under the Ruby License.
Ruby Standard Library © contributors
Licensed under their own licenses.