class RDoc::Markdown

def _CharEntity
  _save = self.pos
  while true # sequence
    _tmp = match_string("&")
    unless _tmp
      self.pos = _save
      break
    end
    _text_start = self.pos
    _tmp = scan(/\G(?-mix:[A-Za-z0-9]+)/)
    if _tmp
      text = get_text(_text_start)
    end
    unless _tmp
      self.pos = _save
      break
    end
    _tmp = match_string(";")
    unless _tmp
      self.pos = _save
      break
    end
    @result = begin;  if entity = HTML_ENTITIES[text] then
               entity.pack 'U*'
             else
               "&#{text};"
             end
           ; end
    _tmp = true
    unless _tmp
      self.pos = _save
    end
    break
  end # end sequence
  set_failed_rule :_CharEntity unless _tmp
  return _tmp
end