[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Question about generating a full tree from a tree

Subject: Re: Question about generating a full tree from a tree with xrefs using xslt ?
From: David Carlisle <davidc@xxxxxxxxx>
Date: Wed, 10 Dec 2003 14:07:57 GMT
xsl ref id

I'll assume a wrapper element x so your input is well formed

<x>
<elem id="a1" type="w">
  <text>aa</text>
</elem>
<elem id="a2" type="x">
  <text>bb</text>
  <ref>a1</ref>
</elem>
<elem id="a3" type="y">
 <text>cc</text>
  <ref>a2</ref>
</elem>
<elem id="a4" type="x">
 <text>dd</text>
  <ref>a1</ref>
</elem>
</x>



<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="text"/>

<xsl:key name="ref" match="elem" use="ref"/>

<xsl:template match="x">
<xsl:apply-templates select="elem[@type='w']"/>
</xsl:template>

<xsl:template match="elem[@type='w']">
process node <xsl:value-of select="@id"/> with text <xsl:value-of select="text"/> 
<xsl:apply-templates select="key('ref',@id)[@type='x']"/>
</xsl:template>

<xsl:template match="elem[@type='x']">
  process node <xsl:value-of select="@id"/> with text <xsl:value-of select="text"/> 
<xsl:apply-templates select="key('ref',@id)[@type='y']"/>
</xsl:template>

<xsl:template match="elem[@type='y']">
    process node <xsl:value-of select="@id"/> with text <xsl:value-of select="text"/> 
<xsl:apply-templates select="key('ref',@id)[@type='z']"/>
</xsl:template>

<xsl:template match="elem[@type='z']">
 none of these should be there
</xsl:template>


</xsl:stylesheet>


$ saxon tree.xml tree.xsl

process node a1 with text aa
  process node a2 with text bb
    process node a3 with text cc
  process node a4 with text dd


Note the above stylesheet is enforcing that it only looks for elements
of a specified type at each level. If you know that only type y eleemnts
are going to refer to type x elements then you could compress all these
templates down to just one.

David


-- 
http://www.dcarlisle.demon.co.uk/matthew

________________________________________________________________________
This e-mail has been scanned for all viruses by Star Internet. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


Current Thread

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.