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rule ipv4_address octet "." octet "." octet "." octet { def value IPAddr.new(text_value) end } end rule octet three_digit_octet / two_digit_octet / one_digit_octet end rule one_digit_octet [0-9] end rule two_digit_octet [1-9] [0-9] end rule three_digit_octet "25" [0-4]/ "2" [0-4] [0-9] / "1" [0-9] [0-9] end

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