*! ruby
*! txt

["magenta", "red", "yellow"].each { |color|
   * txt
   Current color: $(color).
      * ruby
      first= true
      ["ellipse", "rectangle", "triangle"].each do |shape|
         if(first)
            * txt
            We have a $(color) $(shape),
         else
            * txt
            and a $(color) $(shape),
         end
         first= false
      end
   * txt
   and those are all the $(color) shapes.
}