Wolfgang Laun wrote:

> Processing a flat linear sequence of sibling nodes
containing
> text that may trigger the emission of some HTML header or
>
paragraph text, I'm faced with needing to emit a <p> due to one
> of the
siblings, and the matching </p> due to another, with
> some others contibuting
to the flesh of the paragraph.

  Usually, this is the sign you need grouping.
If you describe
your problem (a simplified version narrowed to this specific
problem), I am sure someone will be able to help you find a clean
solution.
Regards,

-- 
Florent Georges
http://www.fgeorges.org/