Extended maintenance of Ruby versions 1.8.7 and 1.9.2 ended on July 31, 2014. Read more
self
Switch that can omit argument.
Parses argument if given, or uses default value.
# File optparse.rb, line 466 def parse(arg, argv, &error) if arg conv_arg(*parse_arg(arg, &error)) else conv_arg(arg) end end
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