Re: Bread-crumbs nav from nested hierarchy in reverse

I can suggest to use ancestor-or-self axis here. Also
I tried to simplify the code and make it more
readable:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:param name="pageid" select="3"/>

	<xsl:template match="/">
		<xsl:variable name="selected-page"
select="//page[pageid = $pageid]"/>
		<xsl:variable name="selected-page-path"
select="$selected-page/ancestor-or-self::page"/>
		<docroot>
			<xsl:call-template name="reverse">
				<xsl:with-param name="node-set"
select="$selected-page-path"/>
			</xsl:call-template>
		</docroot>	
	</xsl:template>
	
	<xsl:template name="reverse">
		<xsl:param name="node-set"/>
		<xsl:if test="$node-set">
			<xsl:variable name="current-item"
select="$node-set[last()]"/>
			<a
href="index.cfm?pageid={$current-item/pageid}"><xsl:value-of
select="normalize-space($current-item/title)"/></a>
			<xsl:if test="(count($node-set) &gt; 1) and
($node-set[last() - 1]/pageid)">
				&gt;&gt;
				<xsl:call-template name="reverse">
					<xsl:with-param name="node-set"
select="$node-set[position() &lt; last()]"/>
				</xsl:call-template>					
			</xsl:if>
		</xsl:if>
	</xsl:template>
</xsl:stylesheet>

The stylesheet doesn't output extra ">>" at the start
of the path.

Regards,
Armen

--- "Simerman, Joshua Michael" <jsimerma@xxxxxxxxxxx>
wrote:
> 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>&gt;&gt;</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
> 
> 
>  XSL-List info and archive: 
> http://www.mulberrytech.com/xsl/xsl-list
> 


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