xml_split does not create valid xml documents. It is appears mainly to allow you break apart the document and then put it back together with xml_merge.

I guess I could modify the resulting document after running it. If I don't have any other solutions.

xml_split does not create valid xml documents.

Sure it does. Observe

$$ echo THIS IS THE SAME AS xml_split -v Herkum.xml
$$ xml_split -v -c "level(1)" Herkum.xml
generating main file Herkum-00.xml
generating Herkum-01.xml
generating Herkum-02.xml
$$ cat Herkum-00.xml && echo
<root>
<?merge  subdocs = 0 :Herkum-01.xml?>
<?merge  subdocs = 0 :Herkum-02.xml?>
</root>
$$ cat Herkum-01.xml && echo
<a>
  <b>Test</b>
</a>
$$ cat Herkum-02.xml && echo
<aa>
  <b>Test</b>
</aa>
[download]

You can use "level(1)" with twig_handlers

You can even do xml_split -l 1

Would you care to explain? I tried to make it output well-formed fragments. About the only thing I can think of that would trip xml_split would be DTDs with entities, and if you have an example, I would be glad to make it work for you.

Thanks

Unless I'm overlooking something, a new feature could be to have an option to omit the merge file (00) and instead have the root wrapped around each output file, ie foo.xml

<root>
<a>
  <b>Test</b>
</a>
<aa>
  <b>Test</b>
</aa>
</root>
[download]

becomes 2 files, foo-01.xml

<root>
<a>
  <b>Test</b>
</a>
</root>
[download]

and foo-02.xml

<root>
<aa>
  <b>Test</b>
</aa>
</root>
[download]