I never recommend using regular expressions to read XML, but sometimes it's the most compatible way because the regular expression functions are always available.
我从不建议使用正则表达式读取XML，但是有时它是兼容性最好的方式，因为正则表达式函数总是可用的。
If you come across an instance where you need to use regular expression functions, then you will likely have to create user-defined functions to handle your requirement.
如果您遇到一个需要使用正则表达式函数的实例，则您将很可能要创建用户定义的函数来处理您的要求。
If you come across an instance where you need to use regular expression functions, then you will likely have to create user-defined functions to handle your requirement.
如果您遇到一个需要使用正则表达式函数的实例，则您将很可能要创建用户定义的函数来处理您的要求。
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