tsv_converter.rb

module TSV
  extend self
  def parse(str)
    str.split("\n").map {|x| x.split("\t")}
  end  
end

class Object
  def to_tsv
    return to_s unless kind_of? Enumerable
    if first.kind_of? Enumerable
      map {|x| x.join("\t")}.join("\n")
    else
      map {|x| x.to_s}.join("\n")
    end
  end
end