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67 lines
4.6 KiB
HTML
67 lines
4.6 KiB
HTML
<html><head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>A brief introduction to XSL</title><link rel="stylesheet" href="reference.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V2"><link rel="home" href="index.html" title="DocBook XSL Stylesheet Documentation"><link rel="up" href="publishing.html" title="Chapter 1. DocBook XSL"><link rel="previous" href="publishing.html" title="Chapter 1. DocBook XSL"><link rel="next" href="ch01s03.html" title="XSL processing model"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">A brief introduction to XSL</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="publishing.html">Prev</a> </td><th width="60%" align="center">Chapter 1. DocBook XSL</th><td width="20%" align="right"> <a accesskey="n" href="ch01s03.html">Next</a></td></tr></table><hr></div><div class="sect1"><a name="d0e168"></a><div class="titlepage"><div><h2 class="title" style="clear: both"><a name="d0e168"></a>A brief introduction to XSL</h2></div></div><p>XSL is both a transformation language and a
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formatting language. The XSLT transformation part lets you
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scan through a document's structure and rearrange its
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content any way you like. You can write out the content
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using a different set of XML tags, and generate text as
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needed. For example, you can scan through a document to
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locate all headings and then insert a generated table of
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contents at the beginning of the document, at the same time
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writing out the content marked up as HTML. XSL is also a
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rich formatting language, letting you apply typesetting
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controls to all components of your output. With a good
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formatting backend, it is capable of producing high quality
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printed pages.</p><p>An XSL stylesheet is written using XML syntax, and is
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itself a well-formed XML document. That makes the basic
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syntax familiar, and enables an XML processor to check for
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basic syntax errors. The stylesheet instructions use
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special element names, which typically begin with
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<tt>xsl:</tt> to distinguish them from any XML
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tags you want to appear in the output. The XSL namespace is
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identified at the top of the stylesheet file. As with other
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XML, any XSL elements that are not empty will require a
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closing tag. And some XSL elements have specific attributes
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that control their behavior. It helps to keep a good XSL
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reference book handy.</p><p>Here is an example of a simple XSL stylesheet applied
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to a simple XML file to generate HTML output.</p><div class="example"><p><a name="d0e180"></a><b>Example 1.1. Simple XML file</b></p><pre class="programlisting"><?xml version="1.0"?>
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<document>
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<title>Using a mouse</title>
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<para>It's easy to use a mouse. Just roll it
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around and click the buttons.</para>
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</document></pre></div><div class="example"><p><a name="d0e185"></a><b>Example 1.2. Simple XSL stylesheet</b></p><pre class="programlisting"><?xml version='1.0'?>
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<xsl:stylesheet
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version='1.0'>
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<xsl:output method="html"/>
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<xsl:template match="document">
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<HTML><HEAD><TITLE>
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<xsl:value-of select="./title"/>
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</TITLE>
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</HEAD>
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<BODY>
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<xsl:apply-templates/>
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</BODY>
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</HTML>
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</xsl:template>
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<xsl:template match="title">
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<H1><xsl:apply-templates/></H1>
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</xsl:template>
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<xsl:template match="para">
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<P><xsl:apply-templates/></P>
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</xsl:template>
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</xsl:stylesheet>
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</pre></div><div class="example"><p><a name="d0e190"></a><b>Example 1.3. HTML output</b></p><pre class="programlisting"><HTML>
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<HEAD>
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<TITLE>Using a mouse</TITLE>
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</HEAD>
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<BODY>
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<H1>Using a mouse</H1>
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<P>It's easy to use a mouse. Just roll it
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around and click the buttons.</P>
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</BODY>
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</HTML>
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</pre></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="publishing.html">Prev</a> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right"> <a accesskey="n" href="ch01s03.html">Next</a></td></tr><tr><td width="40%" align="left">Chapter 1. DocBook XSL </td><td width="20%" align="center"><a accesskey="u" href="publishing.html">Up</a></td><td width="40%" align="right"> XSL processing model</td></tr></table></div></body></html> |