Partial Matching in R getNodeSet

Question

This is more of a XPath question, but how do I tell getNodeSet to accept class matches on only 1 class?

For instance, I might have

<tr class="cool coolio">

and if I do

getNodeSet(root, "tr[@class="cool"])

I will not be able to catch the tag above, I need to fully qualify it with

getNodeSet(root, "tr[@class="cool coolio"])

Is there any way to catch the above tag without having to specify both possible classes?

Answer 1

是的，你应该能够做到这一点：

getNodeSet(root, "tr[contains(concat(' ', @class, ' '), ' cool ')]")