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- <html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2019"><meta name="DC.rights.owner" content="(C) Copyright 2019"><meta name="DC.type" content="topic"><meta name="description" content="Plug-ins can contribute XSLT extension functions and collation URI resolvers. These customizations are automatically configured to work with Saxon when transformations are run using the DITA-OT pipeline task with custom XSLT."><meta name="DC.subject" content="Saxon, service, Ant, jar, pipeline, xslt, I18N, plug-in, plug-ins, XSLT, preprocessing, extension points, Saxon, Java, ServiceLoader"><meta name="keywords" content="Saxon, service, Ant, jar, pipeline, xslt, I18N, plug-in, plug-ins, XSLT, preprocessing, extension points, Saxon, Java, ServiceLoader"><meta name="DC.relation" scheme="URI" content="../topics/plugin-applications.html"><meta name="DC.relation" scheme="URI" content="../topics/implement-saxon-extension-functions.html"><meta name="DC.relation" scheme="URI" content="../topics/implement-saxon-collation-uri-resolvers.html"><meta name="DC.format" content="HTML5"><meta name="DC.identifier" content="implement-saxon-customizations"><link rel="stylesheet" type="text/css" href="../css/commonltr.css"><link rel="stylesheet" type="text/css" href="../css/dita-ot-doc.css"><title>Adding Saxon customizations</title></head><body id="implement-saxon-customizations"><header role="banner"><div class="header">
- <p>DITA Open Toolkit</p>
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- <h1 class="title topictitle1" id="ariaid-title1">Adding Saxon customizations</h1>
-
-
- <div class="body"><p class="shortdesc">Plug-ins can contribute XSLT extension functions and collation URI resolvers. These customizations are
- automatically configured to work with Saxon when transformations are run using the DITA-OT
- <code class="keyword markupname xmlelement"><pipeline></code> task with custom XSLT.</p>
- <div class="p">Plug-ins can provide the following Saxon extensions:
- <ul class="ul">
- <li class="li">Extension functions</li>
- <li class="li">Collation URI resolvers</li>
- </ul></div>
- <p class="p">Extensions are declared in plug-in-provided JAR files using the Java ServiceLoader feature that looks for
- service-declaring files in JAR files and loads classes. This requires adding one or more files in the
- <span class="ph filepath">META-INF/services</span> directory in plug-in-provided JAR files.</p>
- <p class="p">You can create the file manually or generate it dynamically using <code class="keyword markupname xmlelement"><service></code> elements in
- Ant <code class="keyword markupname xmlelement"><jar></code> tasks. See the topics for the different extension types for details.</p>
- <div class="p">These extensions use the DITA Open Toolkit Ant <code class="keyword markupname xmlelement"><pipeline></code> element to wrap
- <code class="keyword markupname xmlelement"><xslt></code> elements. You can do this in plug-ins as shown in this excerpt from the DITA
- Community I18N plugin’s <span class="ph filepath">build.xml</span>
- file:<pre class="pre codeblock language-xml"><code><target name="org.dita-community.i18n-saxon-extension-test">
- <pipeline message="Test the DITA Community i18n Saxon extension functions"
- taskname="i18n-extension-function-test">
- <xslt
- in="${dita.plugin.org.dita-community.i18n.dir}/test/xsl/data/test-data.xml"
- style="${dita.plugin.org.dita-community.i18n.dir}/test/xsl/test-extension-functions.xsl"
- out="${basedir}/out/extension-function-test-results.xml"
- >
- </xslt>
- </pipeline>
- </target></code></pre></div>
- <p class="p">Normal XSLT extensions to built-in transformation types will automatically have the extensions available to
- them.</p>
- <p class="p">The dynamic Saxon configuration is implemented in the class <code class="ph codeph">org.dita.dost.module.XsltModule</code>,
- which backs the <code class="keyword markupname xmlelement"><pipeline></code>/<code class="keyword markupname xmlelement"><xslt></code> element.</p>
- <p class="p"> </p>
- </div>
- <nav role="navigation" class="related-links"><ul class="ullinks"><li class="link ulchildlink"><strong><a href="../topics/implement-saxon-extension-functions.html">Implementing Saxon extension functions</a></strong><br>Plug-ins can contribute Saxon extension functions for use in XSLT transformations run by DITA Open Toolkit.</li><li class="link ulchildlink"><strong><a href="../topics/implement-saxon-collation-uri-resolvers.html">Implementing custom Saxon collation URI resolvers</a></strong><br>Plug-ins can provide custom URI resolvers that provide collators for specific collation URIs.</li></ul><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/plugin-applications.html" title="Plug-ins allow you to extend the functionality of DITA-OT. This might entail adding support for specialized document types, integrating processing overrides, or defining new output transformations.">Plug-in applications</a></div></div></nav></article></main></body></html>
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