printfデバッグの出力が目立たないので赤くする

dputs.rb

lambda{

  header = lambda{|color| "\e[#{color}m" }
  footer = lambda{ "\e[0m" }

  add = lambda{|name|
    dname =  ("d" + name.to_s).to_sym
    Kernel.send :define_method, dname do |*args|
      begin
        print header.call(31)
        puts "(#{caller(1)[0]})"
        Kernel.send name, *args
      rescue => e
        e.backtrace.shift
        raise e
      ensure
        print footer.call
      end
    end
  }

  add.call :puts
  add.call :p
  add.call :pp

}.call

if $0 == __FILE__
  dputs "nyan"
  dp [*(1..10)]
  dpp [*(1..10)]
end