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Re: Problem with selecting nodes
- To: "Denis Kranjcec" <denis dot kranjcec at fer dot hr>
- Subject: Re: [xsl] Problem with selecting nodes
- From: Jeni Tennison <jeni at jenitennison dot com>
- Date: Tue, 9 Oct 2001 18:42:32 +0100
- CC: "Xsl-List" <xsl-list at lists dot mulberrytech dot com>
- Organization: Jeni Tennison Consulting Ltd
- References: <KKEOLFIOLBIKEADHELGPCEMPCOAA.denis.kranjcec@fer.hr>
- Reply-To: xsl-list at lists dot mulberrytech dot com
Hi Denis,
> In my application user should choose attributes which he wants to be
> displayed, e.g. key1 and key3 Than my XSL should select only element
> ccc with key="key1" or key="key3" with highest priority.
If you have an XSLT processor that supports a max() or highest()
function, you could use those functions. For example, with
math:highest() from EXSLT (http://www.exslt.org/math/functions/highest
- supported by Saxon, 4XSLT, jd.xslt and libxslt), you could use the
expression:
math:highest(ccc[($key1 and @key = 'key1') or
($key2 and @key = 'key2') or
($key3 and @key = 'key3')]/@priority)
/parent::ccc
In Saxon, you could alternatively use:
saxon:highest(ccc[($key1 and @key = 'key1') or
($key2 and @key = 'key2') or
($key3 and @key = 'key3')],
saxon:expression('@priority'))
In the absence of extension functions, you could use one of the
various methods for getting the node with the maximum value from a
the set of nodes you have:
* sort all the matching ccc elements by priority and pick the first
one
* use a recursive template to iterate through the ccc elements in
order of priority until you find one that matches
* use one of Dimitre's generic templates
If you need help with one of these latter approaches, then do say.
Cheers,
Jeni
---
Jeni Tennison
http://www.jenitennison.com/
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