code: public XMLSerializer text(char[] buf, int start, int len) throws IOException {
  		if (startTagIncomplete || setPrefixCalled)
  			closeStartTag();
  		if (doIndent && seenTag)
  			seenTag = false;
  		writeElementContent(buf, start, len, out);
  		return this;
  	}
docs: Text.
  
  @param buf the buf
  @param start the start
  @param len the len
  @return serializer
  @throws IOException Signals that an I/O exception has occurred.