protected DatatypeException newDatatypeException(int position, String message, boolean warning) {
        return new Html5DatatypeException(position, this.getClass(), this.getName(), message, warning);
    }
Checks if a UTF-16 code unit represents a whitespace character (U+0020, 
U+0009, U+000C, U+000D or U+000A).
@param c the code unit
@return <code>true</code> if whitespace, <code>false</code> otherwise
src/nu/validator/datatype/AbstractDatatype.java