OptionParser#getopts

# File tmp/rubies/ruby-4.0.0/lib/optparse.rb, line 1901
def getopts(*args, symbolize_names: false, **keywords)
  argv = Array === args.first ? args.shift : default_argv
  single_options, *long_options = *args

  result = {}
  setter = (symbolize_names ?
              ->(name, val) {result[name.to_sym] = val}
            : ->(name, val) {result[name] = val})

  single_options.scan(/(.)(:)?/) do |opt, val|
    if val
      setter[opt, nil]
      define("-#{opt} VAL")
    else
      setter[opt, false]
      define("-#{opt}")
    end
  end if single_options

  long_options.each do |arg|
    arg, desc = arg.split(';', 2)
    opt, val = arg.split(':', 2)
    if val
      setter[opt, (val unless val.empty?)]
      define("--#{opt}=#{result[opt] || "VAL"}", *[desc].compact)
    else
      setter[opt, false]
      define("--#{opt}", *[desc].compact)
    end
  end

  parse_in_order(argv, setter, **keywords)
  result
end