copying nodes from one xml file to an other

Hello!

I would like to merge information from an external text file (a Praat
TextGrid for the curious) into existing XML files, changing it's
element structure.
To do this, I thought of iterating through the XML file, and match
some elements to the TextGrid, and bring back the information found
from the matching into (a possible new) XML file.
I have succesfully created the "iterators" for both file types, and
now here's the problem:

using XML::LibXML
* how do i copy a node from one DOM to an other?

now I am using XML::LibXML::Reader for the xml-iterating and my own
data structure for the TextGrid file


thanks - aitäh!
Kristian

Verbose version of my problem:

I have an xml with this structure

<record>
   <mark>
       text_word
   </mark>
</record>

and a TextGrid with this information

text: "text_word"
xmin: 0
xmax:

and this is what i want to produce
<record>
  <clause xmin="0" xmax="0.79032485">
    <mark>
       text_word
    </mark>
  </clause>
</record>

and i have problems only with the "cut-and-pasting" and creating of
nodes with the xml::libxml module.


verbose thanks - tänan väga! (estonian)
Kristian
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