Fluent? Also BinaryIO

[trans]

Hmm... I would exactly call it a fluent interface. That would be more like:

File.open(my_file.bin) do |f|
    f.extend(BinaryFinery)
    version = f.uint16.big.read
    length  = f.uint32.little.read
end

Btw, have you seen: BinaryIO? You can take over that project if you want it and do what ever you will with it. I'm no longer actively maintaining it.