[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Using XPATH axis within a recursive structure to
-----Original Message----- From: Michael Kay Thanks: it's a faulty optimization. This leads to some interesting questions about what exactly are the circumstances under which the set operators (union, intersect, except) are distributive with respect to "/". [//A | //B] translates nicely to [/descendant-or-self::node()/(child::A | child::B)] but you've now got me worried! I suspect that union distributes correctly into any path expression but intersect and except don't - but I'm not sure I can prove it. Any set theorists out there who can help? A certain gentleman with a math(ematics) bias sometimes hangs around here :-) Help David! regards DaveP -- DISCLAIMER: NOTICE: The information contained in this email and any attachments is confidential and may be privileged. If you are not the intended recipient you should not use, disclose, distribute or copy any of the content of it or of any attachment; you are requested to notify the sender immediately of your receipt of the email and then to delete it and any attachments from your system. RNIB endeavours to ensure that emails and any attachments generated by its staff are free from viruses or other contaminants. However, it cannot accept any responsibility for any such which are transmitted. We therefore recommend you scan all attachments. Please note that the statements and views expressed in this email and any attachments are those of the author and do not necessarily represent those of RNIB. RNIB Registered Charity Number: 226227 Website: http://www.rnib.org.uk
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