Subject: Re: [xsl] Need an XPath expression for: $B is not contained in $A From: "Costello, Roger L. costello@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Thu, 14 Jun 2018 13:10:10 -0000 |
Martin Honnen wrote: > If you have (element) nodes I fail to see how the index-of function helps Eek! You are right. > Don't you need index-of-node? That is an XPath 3.0 function. I need to stick with XPath 2.0. Suggestions? /Roger -----Original Message----- From: Martin Honnen martin.honnen@xxxxxx [mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx] Sent: Thursday, June 14, 2018 8:52 AM To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx Subject: Re: [xsl] Need an XPath expression for: $B is not contained in $A On 14.06.2018 14:22, Costello, Roger L. costello@xxxxxxxxx wrote: > Hi Folks, > > The variable $A contains an element. > > The variable $B contains an element. > > I need an XPath expression that determines if $B is not contained in $A. > > This XPath expression seems to work: > > not(index-of($B/ancestor::*,$A)) > > but that seems awful, i.e., not straightforward, convoluted, and probably inefficient. If you have (element) nodes I fail to see how the index-of function helps that works on sequences and uses "eq" comparison helps to check containment? Don't you need https://www.w3.org/TR/xpath-functions/#index-of-node?
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