[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: xPath 2.0, XSLT 2.0 ... size increase over v1.0
Regarding mathematical properties: in particular, closure properties. The operations being closed under regular tree languages might be desirable property.. I have seen two kinds of operations under which regular tree languages are not closed.. that is the result is not a regular tree language.. (a) Consider the schema: S -> s (A, S, B) | s () A -> a () B -> b () if we write a query like // (a | b) -- the result is (a^n b^n) which is not regular tree language.. (b) Consider S -> s (A*) A -> a () consider the query for $x in //a return <b/> for $x in //a return <c/> the result is (b^n c^n) The question is has the new constructs in XPath made it not closed or not.. It might have.. If someone has studied these aspects, then we can know if XPath 2.0 is different from XPath 1.0 in these respects also.. cheers and regards - murali.
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|