saxon:leading($nodes-1 as node()*, $stored-expression as jt:net.sf.saxon.functions.Evaluate-PreparedExpression) ==> node()*
This function returns a sequence containing all those nodes from nodes-1 up to and excluding the
first one (in order of the input sequence) for which $stored-expression evaluates to false.
A stored expression may be obtained as the result of calling
the saxon:expression function.
The stored expression is evaluated for each node in $nodes-1 in turn, with that node as the context
node, with the context position equal to the position of that node in $nodes-1 (taken in document
order), and with the context size equal to the size of $nodes-1.
the <para> elements following the current node, stopping at the first element that is not a
Note: this function is quite different from the EXSLT leading() function, though both fulfil
a similar purpose.