Re: [xsl] deep "copy-of" a source fragment

[Peter Davis <pdavis152 at attbi dot com>]

On Tuesday 03 September 2002 23:48, Terence Kearns wrote:
> but if I change
> 	match="/"
> to
> 	match="/html/body"
>
> then I get leaf nodes again :(
> I also tried
...
> makes no difference if I change
>
> 	select="node()"
> to
> 	select="."
> or
> 	select="@*|node()"
>
> Is there no way at all to copy a fragment from the source tree onto the
> result tree?!

The problem is, if you have:

<xsl:template match="/html/body">
  ...
</xsl:template>

then the default template will be applied to all the nodes that aren't part of 
/html/body.  The default template is to copy text nodes and ignore everything 
else, so that might explain your problem.

Instead of changing select to select="node()" and match="/html/body", you 
should try,

<xsl:template match="/">
  <xsl:copy-of select="html/body/node()"/>
</xsl:template>

If that doesn't work, then I don't know what's wrong.

An alternative to using copy-of is to use the "identity template", which can 
look something like this (untested):

<!-- ignore all nodes unless otherwise specified -->
<xsl:template match="node()" priority="0"/>

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

You might want to go this route if you ever want to apply other templates to 
specific elements in the /html/body//* tree.  Using xsl:copy-of doesn't allow 
you to modify the output of the copy with other templates.  If you don't 
think you'll ever need to apply other templates, then copy-of should work 
fine.

-- 
Peter Davis

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