How to mimic copy-namespaces=“no” in XSLT 1.0?

Question

I want to rewrite this xslt piece in XSLT 1.0, which does not support \"copy-namespaces\".

Answer 1

The following mimics the XSLT 2.0 construct:

Create templates in a mode that will re-construct your nodes without namespaces:

<!-- generate a new element in the same namespace as the matched element,
     copying its attributes, but without copying its unused namespace nodes,
     then continue processing content in the "copy-no-namepaces" mode -->

<xsl:template match="*" mode="copy-no-namespaces">
    <xsl:element name="{local-name()}" namespace="{namespace-uri()}">
        <xsl:copy-of select="@*"/>
        <xsl:apply-templates select="node()" mode="copy-no-namespaces"/>
    </xsl:element>
</xsl:template>

<xsl:template match="comment()| processing-instruction()" mode="copy-no-namespaces">
    <xsl:copy/>
</xsl:template>

Apply-templates for the desired element(s) in that mode:

<xsl:apply-templates  select="maml:alertSet/maml:alert" mode="copy-no-namespaces"/>