code: public void property(final QName tag, final Reader val) throws IOException {
      blanks();
      openTagSameLine(tag);
      writeContent(val, wtr);
      closeTagSameLine(tag);
      newline();
    }
docs: Create the sequence<br>
  <tag>val</tag> where val is represented by a Reader
  
  @param tag
  @param val
  @throws IOException