code: def _handle_list_marker(self):
          
          markup = self._read()
          if markup == ";":
              self._context |= contexts.DL_TERM
          self._emit(tokens.TagOpenOpen(wiki_markup=markup))
          self._emit_text(get_html_tag(markup))
          self._emit(tokens.TagCloseSelfclose())
docs: Handle a list marker at the head (``#``, ``*``, ``;``, ``:``).