# File lib/zip/zip_extra_field.rb, line 18 def initial_parse(binstr) if ! binstr # If nil, start with empty. return false elsif binstr[0,2] != self.class.const_get(:HEADER_ID) $stderr.puts "Warning: weired extra feild header ID. skip parsing" return false end [binstr[2,2].unpack("v")[0], binstr[4..-1]] end