with the expression
ancestor::*[self::define or self::choice][1][self::choice]
there are no 'nested' predicates, hence its a single step.
I.e. the step is all in reverse document order.
I'm not sure what you mean by a nested predicate but yes,, it's a single
step because XPath steps are the chunks you get by splitting up an
expression at top level /
/a[a/b/c]/x/y[a or b or c/d]
has three steps
/a[a/b/c]
/x
/y[a or b or c/d]
although of course the sub-expressions such as a/b/c are themseleves
made up of multiple steps.
Innermost being the node closest to 'ref' element, further away
from the root.
yes (sorry one place I lapsed iinto ad-hoc terminology rather than
xpath terminology)
David
--
The LaTeX Companion
http://www.awprofessional.com/bookstore/product.asp?isbn=0201362996
http://www.amazon.co.uk/exec/obidos/tg/detail/-/0201362996/202-7257897-0619804
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