class PDF::Reader::XRef

def unpack_bytes(bytes)


bytes they need to be converted to an int in different ways.
XRef streams pack info into integers 1-N bytes wide. Depending on the number of
############################################################################### 
def unpack_bytes(bytes)
  if bytes.to_s.size == 0
    0
  elsif bytes.size == 1
    bytes.unpack("C")[0]
  elsif bytes.size == 2
    bytes.unpack("n")[0]
  elsif bytes.size == 3
    ("\x00" + bytes).unpack("N")[0]
  elsif bytes.size == 4
    bytes.unpack("N")[0]
  elsif bytes.size == 8
    bytes.unpack("Q>")[0]
  else
    raise UnsupportedFeatureError, "Unable to unpack xref stream entries of #{bytes.size} bytes"
  end
end