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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: differentiating between *the* document node and a
 Hi again,
I forgot to describe a key constraint to the scenario: I store the results at
#2 in an anonymous document node because I need to preserve the contexts of
the children. For example, additional templates might concatenate sibling
<pre> blocks together. If I declare #2 as as="node()*", this context
information is lost and such context-sensitive templates no longer apply to
the <div> children.
* Chris
From: Chris Papademetrious christopher.papademetrious@xxxxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Sunday, March 19, 2023 7:30 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: differentiating between *the* document node and anonymous
document nodes
Hi everyone,
Given the following input:
<?xml version="1.0" encoding="utf-8" ?>
<html>
<body>
<div>
<p>line 1</p>
<p>line 2</p>
</div>
</body>
</html>
I apply the following stylesheet that (1) adds a comment to the root node, and
(2) ungroups <div> elements:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl=http://www.w3.org/1999/XSL/Transform
xmlns:xs=http://www.w3.org/2001/XMLSchema
version="3.0">
<xsl:mode on-no-match="shallow-copy"/>
<xsl:output method="xml" indent="yes"/>
<!-- add comment to root node of document -->
<xsl:template match="/*"> <!-- #1 -->
<xsl:copy>
<xsl:apply-templates select="@*"/>
<xsl:comment>some info about the document</xsl:comment>
<xsl:apply-templates select="node()"/>
</xsl:copy>
</xsl:template>
<!-- ungroup <div> using a temporary variable for the contents -->
<xsl:template match="div">
<xsl:variable name="result"> <!-- #2 -->
<xsl:sequence select="node()"/>
</xsl:variable>
<xsl:apply-templates select="$result"/> <!-- #3 -->
</xsl:template>
</xsl:stylesheet>
The problem is that when I ungroup <div> into an anonymous document node at
#2, then apply templates to the results at #3, the root node template at #1 is
applied again:
<?xml version="1.0" encoding="UTF-8"?>
<html><!--some info about the document-->
<body>
<p><!--some info about the document-->line 1</p>
<p><!--some info about the document-->line 2</p>
</body>
</html>
How can I apply a template to the true top-level document node, but not to
anonymous document nodes?
I could store the document's base-uri() in a variable and check it:
<!-remember input document's URI -->
<xsl:variable name="doc-uri" as="xs:string" select="base-uri(.)"/>
<!-- add comment to root node of document -->
<xsl:template match="/*[base-uri() = $doc-uri]"> <!-- #1 -->
...omitted...
</xsl:template>
This works for match="/*", but not for "/" (because "/" cannot have
predicates). Is there a better way to differentiate between the input document
node and anonymous document nodes?
-----
Chris Papademetrious
Tech Writer, Implementation Group
(610) 628-9718 home office
(570) 460-6078 cell
XSL-List info and
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