module Kramdown::Parser::Html::Parser

def parse_raw_html(el, &block)

providing the block given to this method.
When an HTML start tag is found, processing is deferred to #handle_html_start_tag,

element).
- The matching end tag for the element +el+ is found (only used if +el+ is an HTML
- The end of the document is reached.

Parsing continues until one of the following criteria are fulfilled:
Parse raw HTML from the current source position, storing the found elements in +el+. 
def parse_raw_html(el, &block)
  @stack.push(@tree)
  @tree = el
  done = false
  while !@src.eos? && !done
    if result = @src.scan_until(HTML_RAW_START)
      add_text(result, @tree, :text)
      if result = @src.scan(HTML_COMMENT_RE)
        @tree.children << Element.new(:xml_comment, result, nil, :category => :block)
      elsif result = @src.scan(HTML_INSTRUCTION_RE)
        @tree.children << Element.new(:xml_pi, result, nil, :category => :block)
      elsif @src.scan(HTML_TAG_RE)
        handle_html_start_tag(&block)
      elsif @src.scan(HTML_TAG_CLOSE_RE)
        if @tree.value == @src[1].downcase
          done = true
        else
          warning("Found invalidly used HTML closing tag for '#{@src[1].downcase}' - ignoring it")
        end
      else
        add_text(@src.getch, @tree, :text)
      end
    else
      add_text(@src.rest, @tree, :text)
      @src.terminate
      warning("Found no end tag for '#{@tree.value}' - auto-closing it") if @tree.type == :html_element
      done = true
    end
  end
  @tree = @stack.pop
end