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Re: Recursive substitution

Subject: Re: Recursive substitution
From: David Carlisle <davidc@xxxxxxxxx>
Date: Tue, 1 Nov 2005 22:36:50 GMT
recursive de david carlisle
I see you're using 2.0, it's best to say explictly if you want a 2.0
answer as the current version is still 1.0 (2.0 is still in draft)

I don't think you need to keep copying nodes and build copies of the
tree, you want to recursively walk over the existing tree not copy
branches of it:


    <define name="DEF1">
        <reg name="REG1"/>

    <define name="DEF2">
        <reg name="REG2"/>
        <ref name="DEF1"/>

     <block name="block1">
          <reg name="REG3"/>
          <ref name="DEF2"/>


<xsl:stylesheet version="2.0"

<xsl:key name="r" match="define" use="@name"/>

<xsl:template match="x">
 <xsl:apply-templates select="block"/>

<xsl:template match="reg">
Register: <xsl:value-of select="@name"/>

<xsl:template match="ref">
 <xsl:apply-templates select="key('r',@name)"/>


$ saxon8 ref.xml ref.xsl
<?xml version="1.0" encoding="UTF-8"?>

Register: REG3

Register: REG2

Register: REG1

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