How to extract tags present above a closing tag in an XML document?

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How to extract tags present above a closing tag in an XML document?



I have an XML document with the following format:


<root>
<W> word </W>
<W> word2 </W>
<Some random tag>
<W> word 3 </W>
</Some random tag>
.
.
.
<X>
<W> </W>
<W> </W>
</X>
<W> word4 </W>
<W> word5 </W>
<Some random tag>
<W> word6 </W>
</Some random tag>
.
.
.
<X>
<W> </W>
<W> </W>
</X>
</root>



There are a bunch of tags above the </X>. There can be any order amongst them that is <W> may be present inside some other tag or even outside. I wish to extract all the text in the <W> tag present before the </X> and put it in a list. Then the text in the<W> present between the first </X> and the second </X> should be put it in a new list.


</X>


<W>


<W>


</X>


<W>


</X>


</X>



How do I do so?



What I tried: I used the xml module. Since there is no particular order where <W> may be present, I iterate over all the tags. However, in this manner, I can't tell when the </X> closes which is a problem as there might be some <W> inside the <X> tag as well. Other than this method, I am out of ideas.


xml


<W>


</X>


<W>


<X>



EDIT: To make things clear:


<root>
<W> word </W>
<W> word2 </W>
<Some_random_tag>
<W> word 3 </W>
</Some_random_tag>
<X>
<W>alice </W>
<W>bob </W>
</X>
<W> word4 </W>
<W> word5 </W>
<Some_random_tag>
<W> word6 </W>
</Some_random_tag>
<X>
<W>one </W>
<W>two </W>
</X>
</root>



In the above example, I need word, word2, word3, Alice, Bob in one list (All text in <W> present above the first </X>). And word4, word5, word6, one, two in another list.(All text in <W> present between the first </X> and the second </X>).


word, word2, word3, Alice, Bob


<W>


</X>


word4, word5, word6, one, two


<W>


</X>


</X>









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