What is the status of the ExpressionNode interface? I noticed that it currently seems to be very incompletely implemented. Is this something that I should consider submitting patches to further implement, or will this interface be dropped?
It appears to me that if Function, Operation, and UnaryOperation had exprGetChild() and exprGetNumChildren() implemented this interface would allow XPath expressions to be traversed.
Alternatively, is there another way to traverse an XPath expression without executing it (or parsing it myself)?
Thank You,
Art
