rng analysis

Playing with a newish editor,

http://www.xmldistilled.com/tools/editor/index.htm

It needs an input file to control whether or not
inserted elements are block level or inlines.

I'm guessing this can be derived from the schema,
and for about the third time I'm writing xslt to 'tree walk'
the schema.

I get the feeling I'm doing it wrong, too many options at
any one point, and wondered who else has done this for whatever reason.

Has anyone a stylesheet that walks the schema and can tell
from any element the parent element name and produce a 'tree' in
the correct order?
   Or perhaps even suggest an approach that would make sense
for me to try further?

regards DaveP