XPath/XQuery:在节点中查找文本，但忽略特定后代元素的内容 [英] XPath / XQuery: find text in a node, but ignoring content of specific descendant elements

问题描述

我试图找到一种在节点内搜索字符串的方法，但不包括这些节点的某些子元素的内容.简单明了，我想在文本的段落中搜索字符串，不包括作为段落子元素的脚注.

I am trying to find a way to search for a string within nodes, but excluding ythe content of some subelements of those nodes. Plain and simple, I want to search for a string in paragraphs of a text, excluding the footnotes which are children elements of the paragraphs.

例如

我的文档是:

<document>
   <p n="1">My text starts here/</p>
   <p n="2">Then it goes on there<footnote>It's not a very long text!</footnote></p>
</document>

当我搜索文本"时，我希望 Xpath/XQuery 检索第一个 p 元素，而不是第二个(其中文本"仅包含在脚注中子元素).

When I'm searching for "text", I would like the Xpath / XQuery to retrieve the first p element, but not the second one (where "text" is contained only in the footnote subelement).

我尝试了 contains() 函数，但它检索了两个 p 元素.

I have tried the contains() function, but it retrieves both p elements.

任何帮助将不胜感激:)

Any help would be much appreciated :)

推荐答案

我想在文本的段落，不包括作为子元素的脚注段落的

I want to search for a string in paragraphs of a text, excluding the footnotes which are children elements of the paragraphs

XPath 1.0 - 唯一的解决方案:

An XPath 1.0 - only solution:

使用:

//p//text()[not(ancestor::footnote) and contains(.,'text')]

针对以下 XML 文档(从您的文档中获取，但在 footnote 中添加了 p 以使其更有趣):

Against the following XML document (obtained from yours but added p s within a footnote to make this more interesting):

<document>
    <p n="1">My text starts here/</p>
    <p n="2">Then it goes on there
        <footnote>It's not a very long text!
           <p>text</p>
        </footnote>
    </p>
</document>

这个 XPath 表达式准确地选择了想要的文本节点:

My text starts here/

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