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What does node () mean | @ * means XSLT?

I saw this used in this question:

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

Can someone explain what "node () | @ *" means?

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1 answer

This is called identity transformation . node()|@* matches all child nodes ( node() is all text, element, processing instructions, comments) and attributes ( @* ) of the current context.

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Source: https://habr.com/ru/post/910255/

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