code: def striptags(self):
          r
          stripped = u' '.join(_striptags_re.sub('', self).split())
          return Markup(stripped).unescape()
docs: r"""Unescape markup into an unicode string and strip all tags.  This
          also resolves known HTML4 and XHTML entities.  Whitespace is
          normalized to one:
  
          >>> Markup("Main &raquo;  <em>About</em>").striptags()
          u'Main \xbb About'