public static String format(String source) {
		return new FormatProcess(source).perform().trim();
	}
@Test
	public void formatTest(){
		// issue#I3XS44@Gitee
		// 测试是否空指针错误
		final String sql = "(select 1 from dual) union all (select 1 from dual)";
		SqlFormatter.format(sql);
	}