XPath question: selecting content between two nodes

[Yoav Shapira]

Hi,
I have a well-formed XHTML document that, among other content, has the
following segment:

<img src="uniqueUrl1" />
<p>some text</p>
<p>some other text</p>
<p>some more text</p>
<img src="uniqueUrl2" />

Now, my question: given unique URLs 1 and 2, how do I select all the
content between the two img nodes?

I thought //img[@src="uniqueUrl1"] would work for the first image and
//img[@src="uniqueUrl2"] for the second image node, but they don't seen
to, and anyways they don't give me the content between. I know of the
following axis, but not sure how to use it if it's applicable here at
all.

Any help would be appreciated -- thank you!

Yoav Shapira

 

[Richard Tobin]

<img src="uniqueUrl1" />
<p>some text</p>
<p>some other text</p>
<p>some more text</p>
<img src="uniqueUrl2" />

Now, my question: given unique URLs 1 and 2, how do I select all the
content between the two img nodes?

I thought //img[@src="uniqueUrl1"] would work for the first image and
//img[@src="uniqueUrl2"] for the second image node, but they don't seen
to

Well, I can't solve that problem, because those XPaths *do* select
the nodes in question! If it's not working for you, you are using them
wrongly.

and anyways they don't give me the content between. I know of the
following axis, but not sure how to use it if it's applicable here at
all.

Something like this will select the nodes between the two <img>
elements. It uses the following-sibling axis to get the sibling nodes
after the first <img>, and restricts them to the ones that have the
second <img> as a following-sibling.

//img[@src="uniqueUrl1"]/following-sibling::node()[following-sibling::img[@src="uniqueUrl2"]]

-- Richard

 

[Johannes Koch]

Hi,
I have a well-formed XHTML document that, among other content, has the
following segment:

<img src="uniqueUrl1" />
<p>some text</p>
<p>some other text</p>
<p>some more text</p>
<img src="uniqueUrl2" /> [...]
I thought //img[@src="uniqueUrl1"] would work for the first image and
//img[@src="uniqueUrl2"] for the second image node, but they don't seen
to

Maybe, as so often, it's a namespace issue. XHTML uses a namespace. So
the XPath expressions must use the same namespace, too.

 

[Yoav Shapira]

Thank you very much: this makes sense and I'll try it out.