XPath – Get node with no child of specific type

by

Maybe
*[local-name() = 'A' and not(descendant::*[local-name() = 'B'])]?

Also, there should be only one root element, so for /A[...] you’re either getting all your XML back or none. Maybe //A[not(B)] or /*/A[not(B)]?

I don’t really understand why /A[not(B)] doesn’t work for you.

~/xml% xmllint ab.xml
<?xml version="1.0"?>
<root>
    <A id="1">
            <B/>
    </A>
    <A id="2">
    </A>
    <A id="3">
            <B/>
            <B/>
    </A>
    <A id="4"/>
</root>
~/xml% xpath ab.xml '/root/A[not(B)]'
Found 2 nodes:
-- NODE --
<A id="2">
    </A>
-- NODE --
<A id="4" />

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