From filepaths to XML hierarchy

Hi List

How can I transform a list of filepaths into a consolidated XML hierarchy?


Let us reduce the problem to the following input file:
<x>
   <a><b><c/></b></a>
   <a><b><d/></b></a>
   <a><b><e/></b></a>
   <h><i/></h>
   <h><j/></h>
</x>

How can I transform it into the following output:
<x>
   <a><b><c/><d/><e/></b></a>
   <h><i/><j/></h>
</x>

Cheers
Jesper Tverskov