code: def parseString(txt, cip=True):
      
      if isinstance(txt, HTMLElement):
          return txt
  
      # remove UTF BOM (prettify fails if not)
      if len(txt) > 3 and txt[:3] == u"\xef\xbb\xbf":
          txt = txt[3:]
  
      if not cip:
          htmlelement.html_parser.SpecialDict = dict
      elif isinstance(htmlelement.html_parser.SpecialDict, dict):
          htmlelement.html_parser.SpecialDict = specialdict.SpecialDict
  
      container = HTMLElement()
      container.childs = _parseDOM([
          HTMLElement(x) for x in _raw_split(txt)
      ])
  
      return container
docs: Parse string `txt` and return DOM tree consisting of single linked
      :class:`.HTMLElement`.
  
      Args:
          txt (str): HTML/XML string, which will be parsed to DOM.
          cip (bool, default True): Case Insensitive Parameters. Use special
              dictionary to store :attr:`.HTMLElement.params` as case
              insensitive.
  
      Returns:
          obj: Single conteiner HTML element with blank tag, which has whole DOM\
               in it's :attr:`.HTMLElement.childs` property. This element can be\
               queried using :meth:`.HTMLElement.find` functions.