This method is deprecated or moved on the latest stable version. The last existing version (v1_8_7_330) is shown here.
parse(arg, argv, &error)
Parses argument if given, or uses default value.
# File lib/optparse.rb, line 466 def parse(arg, argv, &error) if arg conv_arg(*parse_arg(arg, &error)) else conv_arg(arg) end end