private boolean startOfNationalHexadecimal (final String text, final int length,
			int position, final char c) {
		return (c == 'n' || c == 'N')
				&& position + 2 < length
				&& (text.charAt(position + 1) == 'x' || text.charAt(position + 1) == 'X')
				&& (text.charAt(position + 2) == '"' || text.charAt(position + 2) == '\'');
	}