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RE: How to copy all child elements except specific one?
- To: "'xsl-list at lists dot mulberrytech dot com'" <xsl-list at lists dot mulberrytech dot com>
- Subject: RE: [xsl] How to copy all child elements except specific one?
- From: "Morris, Chris" <ChrisM at SNELLINGCORP dot COM>
- Date: Tue, 16 Jan 2001 13:49:55 -0600
- Reply-To: xsl-list at lists dot mulberrytech dot com
> <xsl:copy-of select="*[not(self::thisElement)]"/>
>
> does what you ask, but this method only works if you don't mind
> changing the order of your child nodes.
This is not quite what I need. I haven't given the full picture because I
was hoping I could pinpoint the question and apply it to my case. But here's
the full story.
I'm starting with this xml:
<?xml version="1.0"?>
<Level1>
<Level2 Name="ALevel2Element">
<Level3 L3Attr="L3AttrValue">
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<ChildElementToChange OldValue="A" NewValue="D" />
</Level3>
</Level2>
</Level1>
I want to get here:
<?xml version="1.0"?>
<Level1>
<Level2 Name="ALevel2Element">
<Level3>
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<ChildElementToChange>
<NewElement L3Attr="L3AttrValue" OldValue="A" NewValue="D" />
</ChildElementToChange>
</Level3>
</Level2>
</Level1>
The tricky bit is moving the Level3 attribute into the modified
ChildElementToChange fragment.
I'm close at the moment -- I've got this XSL:
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml"/>
<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="Level3">
<xsl:copy-of select="*[not(self::thisElement)]" /> <!-- *** magic line
-->
<xsl:variable name="L3Attr" select="@L3Attr" />
<xsl:for-each select="ChildElementToChange">
<xsl:call-template name="ChangeChildElement">
<xsl:with-param name="L3Attr"><xsl:value-of select="$L3Attr"
/></xsl:with-param>
</xsl:call-template>
</xsl:for-each>
</xsl:template>
<xsl:template name="ChangeChildElement">
<xsl:param name="L3Attr" />
<xsl:element name="ChildElementToChange">
<xsl:element name="NewElement">
<xsl:attribute name="L3Attr"><xsl:value-of select="$L3Attr"
/></xsl:attribute>
<xsl:attribute name="OldValue"><xsl:value-of select="@OldValue"
/></xsl:attribute>
<xsl:attribute name="NewValue"><xsl:value-of select="@NewValue"
/></xsl:attribute>
</xsl:element>
</xsl:element>
</xsl:template>
</xsl:stylesheet>
But this copy-of expression you gave me eliminates the Level3 node from
being copied into the output (though all of its child nodes go down). I need
the copy-of to copy self (Level3), plus all children EXCEPT
ChildElementToChange because it will be modified via the template call.
So if I change the copy-of select to
<xsl:copy-of select="." />
I get this:
<?xml version="1.0" encoding="UTF-16" ?>
<Level1>
<Level2 Name="ALevel2Element">
<Level3 L3Attr="L3AttrValue">
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<TestElementA Attr="Value" />
<ChildElementToChange OldValue="A" NewValue="D" />
</Level3>
<ChildElementToChange>
<NewElement L3Attr="L3AttrValue" OldValue="A" NewValue="D" />
</ChildElementToChange>
</Level2>
</Level1>
... which is close except:
- the original ChildElementToChange is retained
- the new ChildElementToChange is outside the Level3 element when it should
be inside
- the Level3 L3Attr is retained when it should be eliminated
Any ideas?
Chris
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