I wrote:
contained other elements) you would get nothing.
For all node types except for elements, <xsl:copy/> behaves exactly
the same as <xsl:copy-of select="."/>
I should qualify that. If the current node is a root node, then it just
instantiates the content of <xsl:copy> (no different than if <xsl:copy>
weren't there). That's because you never copy root nodes (they're
created automatically).
The way the XSLT 1.0 spec defines <xsl:copy> is that it copies the
current node but excludes any children or attributes of the current node.
Effectively, for nodes that never have children or attributes anyway
(namely: attributes, text nodes, processing instructions, namespace
nodes, and comments), the behavior is the same as <xsl:copy-of select="."/>.
However, for elements and root nodes, <xsl:copy-of select="."/> performs
a deep copy, including all attributes (when the current node is an
element) and child nodes (when the current node is an element or root node).
Evan
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