code: protected String getFormattedDatatypeValue(ICompositeNode node, AbstractRule rule, String text) throws ValueConverterException {
  		Object value = valueConverter.toValue(text, rule.getName(), node);
  		text = valueConverter.toString(value, rule.getName());
  		return text;
  	}
docs: Create a canonical represenation of the data type value. Defaults to the value converter.
  
  @since 2.9