# File lib/webby/helpers/capture_helper.rb, line 89
  def capture_erb( *args, &block )
    # get the buffer from the block's binding
    buffer = _erb_buffer(block.binding) rescue nil

    # If there is no buffer, just call the block and get the contents
    if buffer.nil?
      block.call(*args)
    # If there is a buffer, execute the block, then extract its contents
    else
      pos = buffer.length
      block.call(*args)

      # extract the block
      data = buffer[pos..-1]

      # replace it in the original with empty string
      buffer[pos..-1] = ""

      data
    end
  end