The simple answer is recursion: instead of doing apply-templates on the
children of a node, do apply-templates on its parent (but in a special
mode, to avoid infinite loops).
Alternatively,
<xsl:sort select="position()" data-type="number" order="descending"/>
will process a node-set in reverse document order.
Michael Kay
-----Original Message-----
From: owner-xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
[mailto:owner-xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com] On Behalf Of
Simerman, Joshua Michael
Sent: 19 August 2003 04:52
To: XSL-List(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Bread-crumbs nav from nested hierarchy in reverse order
I'm trying to create bread-crumbing for the navigation of a
website. I have the site hierarchy in a forwards nested
document like below. The only way I could figure out how to
get the bread crumbs at all was to get a backwards result.
Once I have the result doc, I dump it as a srting to the
browser. Got any ideas of a simple way to reverse the order
in xsl, or a better way to write my first xsl?
Here's how my xml document is formed.
<page>
<title>Home Page<title>
<pageid>1</pageid>
<page>
<title>Parent Page</title>
<pageid>2</pageid>
<page>
<title>This Page</title>
<pageid>3</pageid>
</page>
<page>
</page>
Here's the xslt I wrote up.
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:param name="pageid" select="23"/>
<xsl:template match="/">
<docroot>
<xsl:apply-templates mode="first"/>
</docroot>
</xsl:template>
<xsl:template match="node()" mode="first">
<xsl:apply-templates select="page" mode="first"/>
<xsl:if test="pageid=$pageid">
<xsl:call-template name="bread-crumb"/>
</xsl:if>
</xsl:template>
<xsl:template match="node()" mode="ancestor">
<xsl:call-template name="bread-crumb"/>
</xsl:template>
<xsl:template name="bread-crumb">
<xsl:text>>></xsl:text>
<xsl:element name="a">
<xsl:attribute
name="href">index.cfm?pageid=<xsl:value-of
select="pageid"/></xsl:attribute>
<xsl:value-of
select="normalize-space(pagetitle)"/>
</xsl:element>
<xsl:if test="../pageid">
<xsl:apply-templates select=".."
mode="ancestor"/>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
This is what I end up with.
<?xml version="1.0" encoding="UTF-8"?>
<docroot>
<a href="index.cfm?pageid=23">Laptop Requirements</a>
<a href="index.cfm?pageid=21">Computing</a>
<a href="index.cfm?pageid=20">Once you're admitted</a>
<a href="index.cfm?pageid=1">Admissions</a>
</docroot>
Here's the browser view.
Laptop Requirements>>Computing>>Once you're admitted>>Admissions
Josh Simerman
Graduate Assistant, Web Developer
Systems & Accounting Graduate Programs
Indiana University, Kelley School of Business
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