gistfile1.rb

class Time

  def with_interval_of(interval)
    @interval = interval
    self
  end

  def succ
    @interval ||= 1
    
    returning(self + @interval) do |t|
      t.with_interval_of(@interval)
    end
  end
  
end

>> (Time.now.with_interval_of(1.day)...(Time.now + 5.days).with_interval_of(1.day)).each do |t|
?>   puts t
>> end
Mon Apr 27 14:59:32 +1200 2009
Tue Apr 28 14:59:32 +1200 2009
Wed Apr 29 14:59:32 +1200 2009
Thu Apr 30 14:59:32 +1200 2009
Fri May 01 14:59:32 +1200 2009
Sat May 02 14:59:32 +1200 2009