Cart
[Home] [By Thread] [By Date] [Recent Entries]
Hi Lisa Lisa said: 1) No, you are not wrong to think that it CAN be an XPath expression value. But it does not HAVE to be -- it can simply be "matching" an element name, or attribute name, etc. An XPath expression can also be used to make that "match". Didier reply: So, you say that a pattern expression can potentially have a different syntax than an XPath expression or that a pattern match expression could not be contained in the XPath specs (otherwise it is an XPath expression). Does this means that I can create my own expression and be compliant with the specs or that only the pattern match expression mentioned in the specs are valid. In this last case, it means that the pattern match is quite limited. Jee, I am having trouble interpreting the specs. Do we need jurisprudence? if yes who state that the jurisprudence? Why did I woke up this morning, life was easier in my bed :-)) Since I read your message I read again the specs and saw this text fragments which lead me to conclude that a pattern match expression is an XPath expression (I cannot create my own expression - it has to be part of the XPath specifications - more precisely a subset or any expression that may lead to a "node-set"). "XSLT uses the expression language defined by XPath [XPath]. Expressions are used in XSLT for a variety of purposes including: - selecting nodes for processing; - specifying conditions for different ways of processing a node; - generating text to be inserted in the result tree." ..... ..... "TThe syntax for patterns is a subset of the syntax for expressions. In particular, location paths that meet certain restrictions can be used as patterns. An expression that is also a pattern always evaluates to an object of type node-set. A node matches a pattern if the node is a member of the result of evaluating the pattern as an expression with respect to some possible context; the possible contexts are those whose context node is the node being matched or one of its ancestors." so, it seems that it is not the full set but it is a subset of XPath as long as the expression points to an object of type "node-set". I guess that node-set will be defined in the information set specification. Are they, Will they? OK now I have a new problem: where a node-set is defined? Yop, I was feeling better in bed this morning :-)) David where are you? Have you, will you define what a "node-set" is in the information set specifications? Cheers Didier PH Martin mailto:martind@n... http://www.netfolder.com xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
|
