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Re: XPath optional node question
Subject: Re: XPath optional node question From: David Carlisle <davidc@xxxxxxxxx> Date: Mon, 4 Dec 2000 18:44:37 GMT |
Hello all, I'm trying to write an XPath expression that matches optional elements in an element path. For example, suppose I have the following XPath expression: foo//bar But I want to allow any number (even zero) of "a" and "b" elements to exist where the "//" is. So my general expression would match the same nodes as, say, these xpaths: foo/a/bar foo/a/a/a/a/bar foo/a/b/bar foo/b/bar foo/bar But would not match nodes matched by: foo/x/bar I've been unable to construct a proper xpath. Any help would be greatly appreciated. Thanks I think this means you want bars that have a foo ancestor, and all the ancesters are either foo or ancestors of foo (in which case you don't care what they are) or they are a or b. That is probably something like: bar[ancestor::foo and ancester::*[self::foo or descendent::foo or self::a or self::b]] David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Control Centre. For further information visit http://www.star.net.uk/stats.asp XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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