Subject: Re: [xsl] Counting Nodes From: "Christopher R. Maden" <crism@xxxxxxxxx> Date: Mon, 26 Nov 2001 01:20:28 -0800 |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 At 00:46 26-11-2001, Richard Jinks wrote: >More of an XPath question than an XSLT question, but it arose from an >example transformation, so this seems like a good place to ask... It is indeed. >Is the following expression legal? >count(//|//@*) No. >The reason I'm asking is that I'm currently evaluating a few different XSLT >processers, with a view to using one of them in a product I'm working on. >I've noticed that different processers handle it differently, the main >stumbling block being the "//" by itself. They should all stumble on it. Have any accepted it? >I've tried reading the XPath spec and the XSLT Programmers Reference (2nd >Ed), but I can't arrive at a conclusive decision. >They appear to imply that I can't use the // by itself, needing to follow it >with a node set (i.e. //* (which won't help, btw, as it doesn't count the >text nodes) ), but there are sections which suggest that I can use it as a >node set (e.g. AbbreviatedRelativeLocationPath, p354 of above book). The implications are right. AbbreviatedRelativeLocationPath in the XPath spec is: RelativeLocationPath '//' Step and neither Step may not be the null string. To count *all* of the nodes in a document, try count(/descendant-or-self::node() | //@*). That will count the root node itself, and all text, element, PI, comment, and attribute nodes. If you don't want to count the root node itself, try count(//node() | //@*). HTH, Chris - -- Christopher R. Maden, Principal Consultant, HMM Consulting Int'l, Inc. DTDs/schemas - conversion - ebooks - publishing - Web - B2B - training <URL: http://www.hmmci.com/ > <URL: http://crism.maden.org/consulting/ > PGP Fingerprint: BBA6 4085 DED0 E176 D6D4 5DFC AC52 F825 AFEC 58DA -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.5.8 iQA/AwUBPAIJXKxS+CWv7FjaEQKkzwCfX+UbMpeSNp7xuBsGgTZen7HvZ5gAni4M 3kuQ1jyCnZjwdvns7EA46NPQ =Sh+y -----END PGP SIGNATURE----- XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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