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The XSLT Paradigm
David J. Birnbaum, Martin Holmes
The XSLT Paradigm
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Nuts and bolts of an XSLT stylesheet• <xsl:stylesheet>• <xsl:output>• <xsl:template>• <xsl:apply-templates>• Creating the XHTML output framework
<xsl:stylesheet>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xpath-default-namespace="http://www.tei-c.org/ns/1.0" version="2.0">
Wrapper element that contains the entire stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
Always required
xmlns="http://www.w3.org/1999/xhtml"
Required if the output is XHTML
xpath-default-namespace="http://www.tei-c.org/ns/1.0"
• Optional, but useful when transforming TEI input documents• Tells the stylesheet to assume input is in the TEI namespace unless specified otherwise
version="2.0"
Required
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<xsl:output>
<xsl:output method="xhtml" indent="yes" encoding="utf-8"/>
Empty element; describes output formatting
method="xhtml"
May be xhtml, xml, text, html (but we sneer at html; use xhtml instead)
indent="yes"
Set to yes to wrap long lines and indent nested elements for ease in reading the output
<xsl:template match="XPath">
Contains instructions to be executed when the template fires
<xsl:template match="div">
The match attribute specifies an XPath to which the template will be applied. This examplesmatches any <div> element.
<xsl:template match="div"> <p><xsl:apply-templates/></p></xsl:template>
When you encounter a <div>, create a <p>. Then process the contents of the <div>, puttingany output of those template rules inside the <p>.
<xsl:apply-templates select="XPath"/>
• Empty element.• The select attribute identifies the XPath of the nodes to process at this point.• What process means is determined by the template rule for the node selected.
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<xsl:apply-templates select="head"/>
Process all of the <head> children of the context node.
<xsl:apply-templates select="//body/div/div/sp[1]"/>
Process the first speech (<sp>) of the first <div> that is immediately under another <div>immediately under the <body>. In Hamlet, this is the first speech of each scene.
<xsl:apply-templates/>
Process all of the children of the context node.
Creating the XHTML output framework
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xpath-default-namespace="http://www.tei-c.org/ns/1.0" version="2.0"> <xsl:output method="xhtml" indent="yes"/> <xsl:template match="/"> <html> <head> <title>Title goes here</title> </head> <body> <xsl:apply-templates/> </body> </html> </xsl:template> <!-- other template rules go here --></xsl:stylesheet>
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Stepping through the stylesheet (1)
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