Re: stylesheet expansion

I assume you'd want the expanded stylesheet to obey the import precedence rules?

Correct, and I know it is not trivial
and I am not sure this can be done with a stylesheet
I assume there is some complex processing involved

If you know of one specific set where the precedence is apparent (i.e., only on the / match, and the rest is inside the modes you mention), perhaps an if/when like construct in your main concatenated stylesheet would suffice.

I was already thinking in those terms
I just have to drop all the serialization information
and deal with the templates with match="/"
... I could simply not copy them over

I just wanted to make sure there isn't a simple tool available somewhere
(I could always try to compile the stylesheet)

May I ask why you want them all together? It seems to me that separate logical units is a better approach than one big stylesheet.

Cheers,
-- Abel Braaksma