Therefore, each operator in an XML query language must be well defined for all these possible inputs.
因此,应为所有这些可能的输入很好地定义 XML 查询语言中的每个运算符。
The only restriction is that XSLT is designed to process XML input, so the source language must be defined as an XML dialect.
惟一的限制是 XSLT 专门用于处理 XML 输入,因此源语言必须被定义为 XML 方言。
One of the language syntax requirements for XQuery is that the Query language MUST be convenient for humans to read and write.
XQuery的语法要求之一是Query语言必须是方便人们读写的。
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