1 <refentry xmlns="http://docbook.org/ns/docbook"
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2 xmlns:xlink="http://www.w3.org/1999/xlink"
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3 xmlns:xi="http://www.w3.org/2001/XInclude"
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4 xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
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5 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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6 version="5.0" xml:id="highlight.source">
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8 <refentrytitle>highlight.source</refentrytitle>
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9 <refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo>
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12 <refname>highlight.source</refname>
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13 <refpurpose>Should the content of <tag>programlisting</tag>
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14 be syntactically highlighted?</refpurpose>
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18 <src:fragment xml:id="highlight.source.frag">
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19 <xsl:param name="highlight.source" select="0"/>
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23 <refsection><info><title>Description</title></info>
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25 <para>When this parameter is non-zero, the stylesheets will try to do syntax highlighting of the
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26 content of <tag>programlisting</tag> elements. You specify the language for each programlisting
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27 by using the <tag class="attribute">language</tag> attribute. The <parameter>highlight.default.language</parameter>
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28 parameter can be used to specify the language for programlistings without a <tag class="attribute">language</tag>
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29 attribute. Syntax highlighting also works for <tag>screen</tag> and <tag>synopsis</tag> elements.</para>
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31 <para>The actual highlighting work is done by the XSLTHL extension module. This is an external Java library that has to be
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32 downloaded separately (see below).</para>
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35 <para>In order to use this extension, you must</para>
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37 <listitem><para>add <filename>xslthl-2.x.x.jar</filename> to your Java classpath. The latest version is available
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38 from <link xlink:href="http://sourceforge.net/projects/xslthl">the XSLT syntax highlighting project</link>
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39 at SourceForge.</para>
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42 <para>use a customization layer in which you import one of the following stylesheet modules:
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45 <para><filename>html/highlight.xsl</filename>
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49 <para><filename>xhtml/highlight.xsl</filename>
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53 <para><filename>xhtml-1_1/highlight.xsl</filename>
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57 <para><filename>fo/highlight.xsl</filename>
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63 <listitem><para>let either the <literal>xslthl.config</literal> Java system property or the
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64 <parameter>highlight.xslthl.config</parameter> parameter point to the configuration file for syntax
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65 highlighting (using URL syntax). DocBook XSL comes with a ready-to-use configuration file,
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66 <filename>highlighting/xslthl-config.xml</filename>.</para>
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70 <para>The extension works with Saxon 6.5.x and Xalan-J. (Saxon 8.5 or later is also supported, but since it is
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71 an XSLT 2.0 processor it is not guaranteed to work with DocBook XSL in all circumstances.)</para>
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73 <para>The following is an example of a Saxon 6 command adapted for syntax highlighting, to be used on Windows:</para>
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76 <para><command>java -cp c:/Java/saxon.jar;c:/Java/xslthl-2.0.1.jar
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77 -Dxslthl.config=file:///c:/docbook-xsl/highlighting/xslthl-config.xml com.icl.saxon.StyleSheet
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78 -o test.html test.xml myhtml.xsl</command></para>
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