code: public void addValue(String value) {
  		contents.add(value);
  		if (value.trim().length() > 0) {
  			if (contents.size() == 1) {
  				containsSingleString = true;
  			} else {
  				containsSingleString = false;
  				containsMarkupText = true;
  			}
  		}
  	}
docs: Appends a piece of text to the contents of this node
  
  @param value