Many thanks to Michael, David & Dimitre (in order of answering)!!!
1. My original problem was, to convert
From: (numbering in @name do not determine order, only the node sequence!)
<?xml version="1.0" ?>
<node>
<node level="0" type="c" name="toplevel"/>
<node level="1" type="i" name="1. item"/>
<node level="1" type="c" name="2. container"/>
<node level="2" type="i" name="2.1 item"/>
<node level="2" type="i" name="2.2 item"/>
<node level="1" type="i" name="3. item"/>
<node level="1" type="c" name="4. container"/>
<node level="2" type="i" name="4.1 item"/>
<node level="2" type="c" name="4.2 container"/>
<node level="3" type="i" name="4.2.1 item"/>
</node>
To:
<?xml version="1.0" encoding="utf-8"?>
<node>
<node level="0" type="c" name="toplevel">
<node level="1" type="i" name="1. item"/>
<node level="1" type="c" name="2. container">
<node level="2" type="i" name="2.1 item"/>
<node level="2" type="i" name="2.2 item"/>
</node>
<node level="1" type="i" name="3. item"/>
<node level="1" type="c" name="4. container">
<node level="2" type="i" name="4.1 item"/>
<node level="2" type="c" name="4.2 container">
<node level="3" type="i" name="4.2.1 item"/>
</node>
</node>
</node>
</node>
2. what I learned - surprisingly for me - there is not need for item/container
tags!?
3. regarding performance
The typical number of <node>'s ranges btw 100-3000, w/ max. level btw. 3-7
4. additional question:
Can your tricky algorithms also deal with my real situation:
From:
<items>
<item type="c" name="toplevel"><level>0</level></item>
<item type="i" name="1. item"><level>1</level></item>
<item type="c" name="2. container"><level>1</level></item>
<item type="i" name="2.1 item"><level>2</level></item>
<item type="i" name="2.2 item"><level>2</level></item>
<item type="i" name="3. item"><level>1</level></item>
<item type="c" name="4. container"><level>1</level></item>
<item type="i" name="4.1 item"><level>2</level></item>
<item type="c" name="4.2 container"><level>2</level></item>
<item type="i" name="4.2.1 item"><level>3</level></item>
</items>
To:
Same output desired
Once again, many thanks for your contributions (personally, I::[learned]->alot)
Thanks in advance
Marcus
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