CODEWITHSUNDEEP
xslttransformxslt-2.0identity
Hikmat
Hikmat

Reputation: 460

Identity transform strange behavior when use with another template

I have seen strange behavious, by strange mean it act as opposite to the conditions as we do in normally. following are the details:

XSLT Code

<?xml version="1.0" encoding="UTF-8" ?>


<xsl:template match="child[@include='1']"/>

<xsl:template match="@*|node()">
    <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
</xsl:template>

Source XML

<?xml version="1.0" encoding="UTF-8"?>
<Parent>
    <child include='1'>
        <Attribute>Attribute1</Attribute>
    </child>
    <child include='1'>
        <Attribute>Attribute2</Attribute>
    </child>
    <child include='0'>
        <Attribute>Attribute3</Attribute>
    </child>
    <child include='0'>
        <Attribute>Attribute4</Attribute>
    </child>
</Parent>

And my result is:

<Parent>
  <child include="0">
        <Attribute>Attribute3</Attribute>
  </child>
  <child include="0">
        <Attribute>Attribute4</Attribute>
  </child>
</Parent>

Acoording to normal conditions we apply the result should be like below acccording to condition 

<xsl:template match="child[@include='1']"/>

<Parent>
  <child include="1">
        <Attribute>Attribute3</Attribute>
  </child>
  <child include="1">
        <Attribute>Attribute4</Attribute>
  </child>
</Parent>

hopefully I have explained in details: this is the link to the code and xslt processor: Sample Code

Upvotes: 3

Views: 45

Answers (1)

michael.hor257k
michael.hor257k

Reputation: 116993

I am not sure what you base your expectations on.

Your first template has a priority of 0.5, while your second (identity transform) template has a priority of -0.5.

Therefore the template applied to all the child elements whose include attribute is 1 is the first template. This template is empty, so it outputs nothing. As a result, no child element with the include attribute of 1 appears in the output.

All the other nodes are matched by the second template which copies them (and by recursion, their descendants) to the output.

Upvotes: 1

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