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Re: Integrated sort using different elements

Subject: Re: Integrated sort using different elements
From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>
Date: Thu, 19 Feb 2009 10:19:50 -0500
Re:  Integrated sort using different elements
At 2009-02-19 09:09 -0600, Quinn Dombrowski wrote:
I'm trying to figure out a way to sort by one of multiple elements, with descending priority.

You create a select expression that chooses the element you want in the presence or absence of other items.


I'm working with a TEI bibliography, and there's no single element that all the entries have. Ideally, I'd like to sort by monogr/author; but when that's not possible, by analytic/author; if not that, monogr/editor; then monogr/title; and so on down the line.

In XSLT 2.0, choose the first item in a sequence of many items, priority indicated by the order of your sequence:


<xsl:sort select="
 ( monogr/author, analytic/author, monogr/editor, monogr/title )[1]"/>

In XSLT 1.0 you might do something along the lines of:

<xsl:sort select="
monogr/author |
self::*[not(monogr/author)]/analytic/author |
self::*[not(monogr/author | analytic/author)]/monogr/editor |
self::*[not(monogr/author | analytic/author | monogr/editor)]/monogr/title"/>


I hope this helps.

. . . . . . . . . . Ken

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