class Kramdown::Parser::Html::ElementConverter

def process(el, do_conversion = true, preserve_text = false, parent = nil)
  case el.type
  when :xml_comment, :xml_pi
    ptype = if parent.nil?
              'div'
            else
              case parent.type
              when :html_element then parent.value
              when :code_span then 'code'
              when :code_block then 'pre'
              when :header then 'h1'
              else parent.type.to_s
              end
            end
    el.options.replace({:category => (HTML_CONTENT_MODEL[ptype] == :span ? :span : :block)})
    return
  when :html_element
  when :root
    el.children.each {|c| process(c)}
    remove_whitespace_children(el)
    return
  else return
  end
  mname = "convert_#{el.value}"
  if do_conversion && self.class.method_defined?(mname)
    send(mname, el)
  else
    type = el.value
    remove_text_children(el) if do_conversion && REMOVE_TEXT_CHILDREN.include?(type)
    if do_conversion && SIMPLE_ELEMENTS.include?(type)
      set_basics(el, type.intern)
      process_children(el, do_conversion, preserve_text)
    else
      process_html_element(el, do_conversion, preserve_text)
    end
    if do_conversion
      strip_whitespace(el) if STRIP_WHITESPACE.include?(type)
      remove_whitespace_children(el) if REMOVE_WHITESPACE_CHILDREN.include?(type)
      wrap_text_children(el) if WRAP_TEXT_CHILDREN.include?(type)
    end
  end
end