XPath在多次评论之间进行选择 [英] XPath selecting between comments multiple times
问题描述
< html>
<！ - comment 1 - >
< div>一些文字< / div>
< div>< p>更多元素< / p>< / div>
<！ - 结束内容 - >
<！ - comment 2 - >
< div>一些文字< / div>
< div>< p>更多元素< / p>
<！ - 结束内容 - >
< / div>
< / html>
我尝试使用下面的XPath：
<$ （包括（。，'comment 1'）]] [following-sibling :: comment（）[contains（。，'end内容'）]]
它对第一条评论正常，即评论1，但不适用于第二条评论
以下是相同的XPath。
// * [preceding-sibling :: comment（）[contains（。 ，'comment 2'）]] [following-sibling :: comment（）[contains（。，'end content'）]]
我使用以下代码的HTML Agility Pack：
var nodes = document.SelectNodes（ // * [preceding-sibling :: comment（）[contains（。，'comment 1'）]] [following-sibling :: comment（）[contains（。，'InstanceEndEditable'）]]）;
string allHtml =节点[0] .OuterHtml;
如果我在上面的代码中将comment 1更改为comment 2，那么它不会给出任何结果。
添加一个谓词，表明您希望先前的注释和 第一个下面的评论。
所以，例如，要获取以comment 1开头的评论之间的内容， ： // * [preceding-sibling :: comment（）[1] [contains（。，'comment 1'） ]]
[following-sibling :: comment（）[1] [contains（。，'end content'）]]
同样，要获得以comment 2开头的评论之间的内容：
// * [before-sibling :: comment（）[1] [contains（。，'comment 2'）]]
[following-sibling :: comment（）[1] [contains（。，'end内容'）]]
We need to read node between HTML comments:
<html>
<!-- comment 1 -->
<div>some text</div>
<div><p>Some more elements</p></div>
<!-- end content -->
<!-- comment 2 -->
<div>some text</div>
<div><p>Some more elements</p>
<!-- end content -->
</div>
</html>
I tried using the below XPath:
//*[preceding-sibling::comment()[contains(., 'comment 1')]][following-sibling::comment()[contains(., 'end content')]]
It works fine for first comment i.e. comment 1 but not working for second comment following is the XPath for the same
//*[preceding-sibling::comment()[contains(., 'comment 2')]][following-sibling::comment()[contains(., 'end content')]]
I am using HTML Agility Pack with below code:
var nodes = document.SelectNodes("//*[preceding-sibling::comment()[contains(., 'comment 1')]][following-sibling::comment()[contains(., 'InstanceEndEditable')]]");
string allHtml = nodes[0].OuterHtml;
If I change "comment 1" to "comment 2" in above code then it is not giving any result.
Add a predicate that states that you want the first preceding comment and the first following comment.
So, for example, to get the contents between the comments that starts with "comment 1":
//*[preceding-sibling::comment()[1][contains(., 'comment 1')]]
[following-sibling::comment()[1][contains(., 'end content')]]
Similarly, to get the contents between the comments that starts with "comment 2":
//*[preceding-sibling::comment()[1][contains(., 'comment 2')]]
[following-sibling::comment()[1][contains(., 'end content')]]
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