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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 2020"><meta name="generator" content="DITA-OT"><meta name="description" content="You can pass parameters from the Ant build to existing XSLT steps in both the pre-processing pipeline and certain DITA-OT transformations. This can be useful if you want to make the parameters available as global xsl:param values within XSLT overrides."><meta name="keywords" content=", xsl:param, param, dummy, plug-ins, parameters, parameters, adding, XSLT, XSLT"><link rel="stylesheet" type="text/css" href="../css/commonltr.css"><link rel="stylesheet" type="text/css" href="../css/dita-ot-doc.css"><title>Adding parameters to existing XSLT steps</title></head><body id="plugin-xsltparams"><header role="banner"><div class="header">
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<p>DITA Open Toolkit</p>
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<hr>
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</div></header><nav role="toc"><ul><li><a href="../index.html">DITA Open Toolkit 3.6</a></li><li><a href="../release-notes/index.html">Release Notes</a></li><li><a href="../topics/installing-client.html">Installing DITA-OT</a></li><li><a href="../topics/building-output.html">Building output</a></li><li><a href="../topics/input-formats.html">Authoring formats</a></li><li><a href="../topics/output-formats.html">Output formats</a></li><li><a href="../parameters/index.html">Parameters</a></li><li><a href="../topics/html-customization.html">Customizing HTML</a></li><li><a href="../topics/pdf-customization.html">Customizing PDF</a></li><li><a href="../topics/adding-plugins.html">Adding plug-ins</a></li><li><a href="../topics/custom-plugins.html">Creating plug-ins</a><ul><li><a href="../topics/plugin-benefits.html">Plug-in benefits</a></li><li><a href="../topics/plugin-configfile.html">Plug-in descriptor file</a></li><li><a href="../topics/plugin-coding-conventions.html">Coding conventions</a></li><li><a href="../topics/plugin-dependencies.html">Plug-in dependencies</a></li><li><a href="../topics/plugin-use-cases.html">Plug-in use cases</a><ul><li><a href="../topics/plugin-set-parameters.html">Setting parameters</a></li><li><a href="../topics/plugin-anttarget.html">Adding a new Ant target</a></li><li><a href="../topics/plugin-antpreprocess.html">Adding a pre-processing step</a></li><li><a href="../topics/plugin-newtranstype.html">Adding a new output format</a></li><li class="active"><a href="../topics/plugin-xsltparams.html">Adding new parameters</a></li><li><a href="../topics/plugin-overridestyle.html">Overriding XSLT steps</a></li><li><a href="../topics/plugin-javalib.html">Adding a Java library</a></li><li><a href="../topics/plugin-messages.html">Adding new messages</a></li><li><a href="../topics/plugin-newextensions.html">New extension points</a></li><li><a href="../topics/plugin-xmlcatalog.html">Extending an XML catalog file</a></li><li><a href="../topics/plugin-rewrite-rules.html">Rewriting file names</a></li><li><a href="../topics/implement-saxon-customizations.html">Saxon customizations</a></li></ul></li><li><a href="../topics/html-customization-plugins.html">Custom HTML plug-ins</a></li><li><a href="../topics/pdf-customization-plugins.html">Custom PDF plug-ins</a></li><li><a href="../topics/globalization.html">Globalizing DITA content</a></li><li><a href="../topics/migration.html">Migrating customizations</a></li></ul></li><li><a href="../topics/troubleshooting-overview.html">Troubleshooting</a></li><li><a href="../reference/index.html">Reference</a></li><li><a href="../topics/dita-and-dita-ot-resources.html">Resources</a></li></ul></nav><main role="main"><article role="article" aria-labelledby="ariaid-title1">
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<h1 class="title topictitle1" id="ariaid-title1">Adding parameters to existing XSLT steps</h1>
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<div class="body taskbody"><p class="shortdesc">You can pass parameters from the Ant build to existing XSLT steps in both the pre-processing pipeline and
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certain DITA-OT transformations. This can be useful if you want to make the parameters available as global
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<code class="keyword markupname xmlelement"><xsl:param></code> values within XSLT overrides.</p>
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<section><div class="tasklabel"><h2 class="sectiontitle tasklabel">Procedure</h2></div><ol class="ol steps"><li class="li step stepexpand" id="plugin-xsltparams__create-xml-file">
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<span class="ph cmd">Create an XML file that contains one or more Ant <code class="keyword markupname xmlelement"><param></code> elements nested within a
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<code class="keyword markupname xmlelement"><dummy></code> wrapper element.</span>
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<div class="itemgroup stepxmp">
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<pre class="pre codeblock language-xml normalize-space show-line-numbers show-whitespace"><code><dummy>
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<em class="ph i"><!-- Any Ant code allowed in xslt task is possible. Example: --></em>
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<param name="paramNameinXSLT" expression="${antProperty}"
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if="antProperty"/>
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</dummy></code></pre>
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</div>
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</li><li class="li step stepexpand">
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<span class="ph cmd">Construct a <span class="ph filepath">plugin.xml</span> file that contains the following content:</span>
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<div class="itemgroup info"><pre class="pre codeblock language-xml normalize-space show-line-numbers show-whitespace"><code><plugin id="<var class="keyword varname">plugin-id</var>">
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<feature extension="<var class="keyword varname">extension-point</var>" file="<var class="keyword varname">file</var>"/>
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</plugin></code></pre>where:
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<ul class="ul">
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<li class="li"><var class="keyword varname">plugin-id</var> is the plug-in identifier, for example,
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<code class="ph codeph">com.example.newparam</code>.</li>
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<li class="li"><var class="keyword varname">extension-point</var> is the DITA-OT extension point, for example,<code class="ph codeph">
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dita.conductor.xhtml.param</code>. This indicates the DITA-OT processing step where the parameters
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will be available.</li>
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<li class="li"><var class="keyword varname">file</var> is the name of the XML file that you created in step
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<a class="xref" href="plugin-xsltparams.html#plugin-xsltparams__create-xml-file">1</a>, for example, <span class="ph filepath">insertParameters.xml</span>.
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</li>
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</ul></div>
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</li><li class="li step stepexpand">
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<span class="ph cmd">Install the plug-in.</span>
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</li></ol></section>
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<section class="section result"><div class="tasklabel"><h2 class="sectiontitle tasklabel">Results</h2></div>The <span class="ph filepath">plugin.xml</span> file passes the parameters to the specified transformation or
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pre-processing module.</section>
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<section class="example"><h2 class="title sectiontitle">Example</h2>
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<p class="p">The following plug-in passes the parameters defined in the <span class="ph filepath">insertParameters.xml</span> file as
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input to the XHTML process. Generally, an additional XSLT override will make use of the parameters to do
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something new with the generated content.</p>
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<pre class="pre codeblock language-xml normalize-space show-line-numbers show-whitespace"><code><plugin id="com.example.newparam">
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<feature extension="dita.conductor.xhtml.param"
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file="insertParameters.xml"/>
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</plugin></code></pre>
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</section>
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</div>
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<nav role="navigation" class="related-links"><div class="familylinks"><div class="parentlink"><strong>Parent topic:</strong> <a class="link" href="../topics/plugin-use-cases.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 use cases</a></div></div><div class="linklist reltasks"><strong>Related tasks</strong><br><ul class="linklist"><li class="linklist"><a class="link" href="../topics/plugins-installing.html" title="Use the dita install subcommand to install plug-ins.">Installing plug-ins</a></li></ul></div><div class="linklist relref"><strong>Related reference</strong><br><ul class="linklist"><li class="linklist"><a class="link" href="../extension-points/plugin-extension-points-xslt-parameters.html" title="You can use these extension points to pass parameters into existing XSLT steps in both the pre-processing pipeline and DITA-OT transformation. The parameters generally will be available as global xsl:param values with XSLT overrides.">XSLT-parameter extension points</a></li></ul></div></nav></article></main></body></html> |