[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: XML Encoding of XPath: Examples
Dan Diebolt wrote: > Am I missing something here? Why would it > be desirable to reform XPath into XML? > What problem would this address? It would address the problem of the programmatic manipulation of XPath expressions. I don't think anyone's suggesting that XSLT should use an XML syntax for XPath, but it would be nice if one could *view* an XPath expression as XML, in order to leverage all of the familiar XML processing tools, eg. DOM, SAX, and XSLT (which, of course, includes XPath itself). One particular use case that I've come across is the manipulation of existing XSLT stylesheets. XSLT can work quite well to make these manipulations, but it does not work well for string parsing in general, and parsing XPath expressions in particular. If I had, say, an extension function that returned a root node containing the XML tree representation of a particular XPath expression, then I could query and/or manipulate that XPath expression just as I would any other tree. Another extension function would allow me to serialize that tree back into XPath syntax. This same general problem is addressed in this recent xml-dev thread: http://lists.xml.org/archives/xml-dev/200103/threads.html#00178 Hope this helps, Evan Lenz XYZFind Corp.
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