Question

I did not get exactly how to use an or operator within an Xpath.

Let’s assume i have a xml of thi structure:

<root>
    <a>
        <b/>
        <c/>
    </a>
    <a>
        <b/>
    </a>
    <a>
        <d/>
        <b/>
    </a>
    <a>
        <d/>
        <c/>
    </a>
</root>

can i get with a single Xpath all the A node wich have as soon a node B or C.
I know i could look for the B and the see in a separate way and after sum the result removing repetition (as shown below) but i am sure there is a better way.

List1 = Xpath(./a/b/..)
List2 = Xpath(./a/c/..)
MyResult = (List1 + List2 - Repetitions)

I guess the solution could then apply as well for the AND operator.

Answer 1

/root/a[b or c] will give you all <a> elements that have either a <b> or <c> child.