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RE: [xsl] Problems with mixed content and inline elements when transforming XHTML into another XML format
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Subject: RE: [xsl] Problems with mixed content and inline elements when transforming XHTML into another XML format From: Tony Kinnis <kinnist@xxxxxxxxx> Date: Thu, 23 Feb 2006 11:09:56 -0800 (PST) |
Thanks Michael for the response however I am still having problems
getting this to work. I tweaked your code a bit to get it to work and
maybe through that process I broke something.
I keep getting this error...
Description: A sequence of more than one item is not allowed as the
first argument of f:is-inline()
URL: http://www.w3.org/TR/xpath20/#ERRXPTY0004
In case this this matters I am debugging this using the Oxygen editor
for the mac. The processor I have selected is Saxon8B. Once again help
is much appreciated.
To make this easier here is the full xsl doc, input I am testing and
desired output....
XSL document...
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="2.0"
xpath-default-namespace="http://www.w3.org/1999/xhtml"
xmlns:f="http://whatever"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xsl:template match="/">
<xsl:copy>
<xsl:for-each-group select="node()"
group-adjacent="f:is-inline(node())">
<xsl:choose>
<xsl:when test="current-grouping-key()">
<textnode><xsl:copy-of
select="current-group()"/></textnode>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="current-group()"/>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each-group>
</xsl:copy>
</xsl:template>
<xsl:function name="f:is-inline" as="xs:boolean">
<xsl:param name="node" as="node()"/>
<xsl:sequence select="$node instance of text() or
$node[self::u|self::b|self::i|self::strong|self::span|self::em|self::br]"/>
</xsl:function>
</xsl:stylesheet>
XHTML Document...
<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org"/>
<title>The Title Is</title>
</head>
<body>
<ul id="bar">
<li/>
<li>foo<br/> after break <div/> after empty div</li>
<li>bar<strong>baz</strong></li>
</ul>
<ol>
<li>Item 1</li>
<li>Item 2</li>
</ol>
<p><span>foo</span><br/> asdf <b>bold another</b>
and <strong>a strong item</strong>
</p>
<div>
Content of a <b>div tag</b> here.
<ul>
<li>
Nested List Item 1
</li>
<li>
Nested List Item 2
</li>
</ul>
Now list is done
</div>
</body>
</html>
Desired output...
<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org"/>
<title><textnode>The Title Is</textnode></title>
</head>
<body>
<ul id="bar">
<li/>
<li><textnode>foo<br/> after break
</textnode><div/><textnode> after empty div</textnode></li>
<li><textnode>bar<strong>baz</strong></textnode></li>
</ul>
<ol>
<li><textnode>Item 1</textnode></li>
<li><textnode>Item 2</textnode></li>
</ol>
<p><textnode><span>foo</span><br/> asdf <b>bold another</b>
and <strong>a strong item</strong></textnode>
</p>
<div>
<textnode>Content of a <b>div tag</b> here.</textnode>
<ul>
<li>
<textnode>Nested List Item 1</textnode>
</li>
<li>
<textnode>Nested List Item 2</textnode>
</li>
</ul>
<textnode>Now list is done</textnode>
</div>
</body>
</html>
> -----Original Message-----
> You're using XSLT 2.0 so this can be solved using grouping
constructs.
>
> Forget the templates that create <textnode> elements.
>
> You want something like this, which causes adjacent "inline" nodes to
be
> grouped under a new element, with a function to decide whether a node
is an
> "inline" node:
>
> <xsl:template match="div">
> <xsl:copy>
> <xsl:for-each-group select="node()"
> group-adjacent="f:is-inline(node())">
> <xsl:choose>
> <xsl:when test="current-grouping-key()">
> <textnode><xsl:copy-of
select="current-group()"/></textnode>
> </xsl:when>
> <xsl:otherwise>
> <xsl:copy-of select="current-group()"/>
> </
> </
> </
> </
> </
>
> <xsl:function name="f:is-inline" as="xs:boolean">
> <xsl:param name="node" as="node()"/>
> <xsl:sequence select="$node instanceof text() or
> $node[self::u|self::b|self::i]"/>
> </xsl:function>
Michael Kay
http://www.saxonica.com/
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