(A grouping question - again...)
The task is to create a nested grouping from a flat list of elements
based on matching "properly nested" <start/> and corresponding <end />
elements. Nesting depth is arbitrary.
Source XML:
<root>
<a />
<start />
<b />
<start />
<c />
<end />
<d />
<start />
<start />
<e />
<end />
<f />
<end />
<g />
<end />
</root>
or, for better legibility indented with the intended result in mind:
<root>
<a />
<start />
<b />
<start />
<c />
<end />
<d />
<start />
<start />
<e />
<end />
<f />
<end />
<g />
<end />
</root>
The result should be:
<root>
<a />
<group>
<b />
<group>
<c />
</group>
<d />
<group>
<group>
<e />
</group>
<f />
</group>
<g />
</group>
</root>
How is this best tackled? group-starting-with="" doesn't seem to be the
way to go, because it will create non-nested groups on each <start />,
but the groups need to be nested.
-Christian
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