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Re: Venetian Blinds vs Garden of Eden patterns for industry

  • From: "G. Ken Holman" <gkholman@CraneSoftwrights.com>
  • To: XML-Dev Mailing list <xml-dev@lists.xml.org>
  • Date: Thu, 28 Oct 2010 15:54:53 -0400

Re:  Venetian Blinds vs Garden of Eden patterns for   industry
At 2010-10-28 20:48 +0100, Pete Cordell wrote:
>Original Message From: "G. Ken Holman"
>>>My XPath knowledge is very weak, but does that allow for matching 
>>>'b' in the 'tree' of:
>>>ns1:root/a/b  ?
>>No, you only asked "b whose qualified parent is in namespace ns1"
>Ah sorry.  Instead of 'parent' I should have used the word 'ancestor'.
>More precisely what I should have said is that XPath can't express 
>"b whose nearest qualified ancestor is in namespace ns1".  Sort of 


Breaking that down:

   b[ancestor::*[namespace-uri()!='']] = all ancestors not in null namespace
   b[ancestor::*[namespace-uri()!=''][1]] = closest of those
   b[ancestor::*[namespace-uri()!=''][1][self::ns1:*]] = when it is in ns1

Does this help you?

. . . . . . . . . Ken

Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/m/
G. Ken Holman                 mailto:gkholman@CraneSoftwrights.com
Male Cancer Awareness Nov'07  http://www.CraneSoftwrights.com/m/bc
Legal business disclaimers:  http://www.CraneSoftwrights.com/legal

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