code: public void ignorableWhitespace(char buf[], int offset, int len)
              throws SAXException {
          String s = new String(buf, offset, len);
          write(nl + "ignorableW..." + indent(0));
      }
docs: Overrides <code>ignorableWhitespace(char[] <i>ch</i>,
  int <i>start</i>, int <i>length</i>)</code> in
  <code>org.xml.sax.helpers.DefaultHandler</code>,
  which in turn implements <code>org.xml.sax.ContentHandler</code>.
  Can only be called when validation is being performed.
  The particular characters may be accessed
  with <code>new String(<i>buf</i>, <i>offset</i>, <i>len</i>)</code>.