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Re: [xsl] Need an XPath expression for: $B is not contained in $A

2018-06-14 08:15:21
There is always:

http://www.xsltfunctions.com/xsl/functx_index-of-node.html

On Thu, Jun 14, 2018, 15:10 Costello, Roger L. costello(_at_)mitre(_dot_)org <
xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:

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(_dot_)honnen(_at_)gmx(_dot_)de [mailto:
xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com]
Sent: Thursday, June 14, 2018 8:52 AM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Need an XPath expression for: $B is not contained in $A

On 14.06.2018 14:22, Costello, Roger L. costello(_at_)mitre(_dot_)org 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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