class Liquid::Cycle

def render_to_output_buffer(context, output)
  context.registers[:cycle] ||= {}
  key       = context.evaluate(@name)
  iteration = context.registers[:cycle][key].to_i
  val = context.evaluate(@variables[iteration])
  if val.is_a?(Array)
    val = val.join
  elsif !val.is_a?(String)
    val = val.to_s
  end
  output << val
  iteration += 1
  iteration = 0 if iteration >= @variables.size
  context.registers[:cycle][key] = iteration
  output
end