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Editorial Team
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Asked: 2026-05-23T02:00:39+00:00

I am trying to insert xml elements into an xml file using XSLT. I

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I am trying to insert xml elements into an xml file using XSLT. I have two files, input file that contains the xpaths (ex: /root/element ) and depending on the input xpath I insert the element into the output file, for example if the input element value is /root/element then I should insert new_element into that destination so the output will be

<root>
  <new_element id="1">some content</new_element>
  <element>some content</element>
</root>

I am populating a variable with the xpath input and then using the variable, but I am getting an error message “parameters and variables can not be used in patterns). Here is the part where I am using the variable:

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

I am very new to XSLT so I am not sure what I am doing wrong, or if my logic to do is not appropriate.

I will appreciate your help 🙂

Thanks

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1 Answer

  1. Editorial Team

    In XSLT 1.0, variables cannot be used in match patterns. Match patterns are the expressions you suplly to an <xsl:template match="...">. You have to use literals in those cases. Consider that the templates are compiled before they are executed, so having a variable in the compiled expression could make it perform less well.

    If you’re new to XSLT and have an interest in learning it, there are a couple good resources on the net (start with Jeni Tennison’s website, as well as in printed form.

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