XSLT <xsl:template> Element
An XSL style sheet consists of one or more set of rules that
are called templates.
A template contains rules to apply when a
specified node is matched.
The <xsl:template> Element
The <xsl:template> element is used to build templates.
The match attribute is used to associate a template with an XML
element. The match attribute can also be used to define a template for the
entire XML document. The value of the match attribute is an XPath expression (i.e. match="/" defines the whole document).
Ok, let's look at a simplified version of the XSL file from the previous chapter:
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<h2>My CD Collection</h2>
<table border="1">
<tr bgcolor="#9acd32">
<th>Title</th>
<th>Artist</th>
</tr>
<tr>
<td>.</td>
<td>.</td>
</tr>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
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Since an XSL style sheet is an XML document itself, it always begins with the
XML
declaration: <?xml version="1.0" encoding="ISO-8859-1"?>.
The next element, <xsl:stylesheet>, defines that this
document is an XSLT style sheet document (along with the version number and XSLT
namespace attributes).
The <xsl:template> element defines a
template. The
match="/" attribute associates the template with the root of the XML source document.
The content inside the <xsl:template> element defines some HTML to write to
the output.
The last two lines define the end of the template and the end of the style
sheet.
The result of the transformation above will look like this:
My CD Collection
View the XML file, View
the XSL file,
and View the result
The result from this example was a little disappointing, because no data was copied from the XML document to the output.
In the next chapter you will learn how to use the <xsl:value-of>
element to select values from the XML elements.
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