lib/rtf/node.rb
def strike
         style        = CharacterStyle.new
         style.strike = true
         if block_given?
            apply(style) {|node| yield node}
         else
            apply(style)
         end
      end
def strike
         style        = CharacterStyle.new
         style.strike = true
         if block_given?
            apply(style) {|node| yield node}
         else
            apply(style)
         end
      end
This method provides a short cut means of creating a strike command
 node. The method accepts a block that will be passed a single parameter
 which will be a reference to the strike node created. After the
 block is complete the strike node is appended to the end of the
 child nodes on the object that the method is call against.