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<h2><a name="style">Xslt/Style</a></h2>
<h3>Description</h3>
<p>Process a set of documents via XSLT.</p>
<p>This is useful for building views of XML based documentation,
or for generating code.</p>
<p><b>Note:</b> If you are using JDK 1.4 or higher, this task does not require external libraries
not supplied in the Ant distribution. Otherwise,
see <a href="../install.html#librarydependencies">Library Dependencies</a> for more information.</p>
<p>It is possible to refine the set of files that are being processed. This can be
done with the <i>includes</i>, <i>includesfile</i>, <i>excludes</i>, <i>excludesfile</i> and <i>defaultexcludes</i>
attributes. With the <i>includes</i> or <i>includesfile</i> attribute you specify the files you want to
have included by using patterns. The <i>exclude</i> or <i>excludesfile</i> attribute is used to specify
the files you want to have excluded. This is also done with patterns. And
finally with the <i>defaultexcludes</i> attribute, you can specify whether you
want to use default exclusions or not. See the section on <a
href="../dirtasks.html#directorybasedtasks">directory based tasks</a>, on how the
inclusion/exclusion of files works, and how to write patterns.</p>
<p>This task forms an implicit <a href="../CoreTypes/fileset.html">FileSet</a> and supports all
  attributes of <code>&lt;fileset&gt;</code> (<code>dir</code> becomes <code>basedir</code>)
  as well as the nested <code>&lt;include&gt;</code>, <code>&lt;exclude&gt;</code>
  and <code>&lt;patternset&gt;</code> elements.</p>

<p><b>Note</b>: Unlike other similar tasks, this task treats
directories that have been matched by the include/exclude patterns of
the implicit fileset in a special way.  It will apply the stylesheets
to all files contain in them as well.  Since the default include
pattern is <code>**</code> this means it will apply the stylesheet to
all files.  If you specify an excludes pattern, it may still work on
the files matched by those patterns because the parent directory has
been matched.  If this behavior is not what you want, set the
scanincludedirectories attribute to false.</p>

<p>This task supports the use of a nested <code>&lt;param&gt;</code> element which is used to pass values
  to an <code>&lt;xsl:param&gt;</code> declaration.</p>
<p>This task supports the use of a nested <a href="../CoreTypes/xmlcatalog.html">xmlcatalog</a>
element which is used to perform Entity and URI resolution</p>
<p><i><code>&lt;style&gt;</code> and <code>&lt;xslt&gt;</code> refer to the same Ant task and can be used interchangeably.</i></p>
<p>If you want to use Xalan-J 1 or XSL:P, you also need Ant's optional.jar</p>
<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">basedir</td>
    <td valign="top">where to find the source XML file, default is the
      project's basedir.</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">destdir</td>
    <td valign="top">directory in which to store the results.</td>
    <td align="center" valign="top">Yes, unless in and out have been
      specified.</td>
  </tr>
  <tr>
    <td valign="top">extension</td>
    <td valign="top">desired file extension to be used for the targets. If not
      specified, the default is &quot;.html&quot;.  Will be ignored if
      a nested <code>&lt;mapper&gt;</code> has been specified.</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">style</td>
    <td valign="top">name of the stylesheet to use - given either relative
      to the project's basedir or as an absolute path
      <em><strong>DEPRECATED</strong> - can be specified as a path relative
          to the basedir attribute of this task as well</em>.
    </td>
    <td align="center" valign="top">Yes</td>
  </tr>
  <tr>
    <td valign="top">classpath</td>
    <td valign="top">the classpath to use when looking up the XSLT
      processor.</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">classpathref</td>
    <td valign="top">the classpath to use, given as <a
      href="../using.html#references">reference</a> to a path defined elsewhere.</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">force</td>
    <td valign="top">Recreate target files, even if they are newer
      than their corresponding source files or the stylesheet.</td>
    <td valign="top" align="center">No; default is false</td>
  </tr>
  <tr>
    <td valign="top">processor</td>

    <td valign="top">name of the XSLT processor to use.  Permissible values are
      &quot;trax&quot; for a TraX compliant processor (ie JAXP interface
      implementation such as Xalan 2 or Saxon),
      &quot;xslp&quot; for the XSL:P processor, &quot;xalan&quot; for
      the Apache XML Xalan (version 1) processor the name of an
      arbitrary XSLTLiaison class. Defaults to trax, followed by xalan
      and then xslp (in that order). The first one found in your class
      path is the one that is used.

      <em><strong>DEPRECATED</strong> - XSL:P and xalan are deprecated and no
      more supported.</em>.
      </td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">includes</td>
    <td valign="top">comma- or space-separated list of patterns of files that must be included.
      All files are included when omitted.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">includesfile</td>
    <td valign="top">the name of a file. Each line of this file is taken to be
      an include pattern</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">excludes</td>
    <td valign="top">comma- or space-separated list of patterns of files that must be excluded.
      No files (except default excludes) are excluded when omitted.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">excludesfile</td>
    <td valign="top">the name of a file. Each line of this file is taken to be
      an exclude pattern</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">defaultexcludes</td>
    <td valign="top">indicates whether default excludes should be used or not
      (&quot;yes&quot;/&quot;no&quot;). Default excludes are used when omitted.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">in</td>
    <td valign="top">specifies a single XML document to be styled. Should be used
      with the out attribute.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">out</td>
    <td valign="top">specifies the output name for the styled result from the
      in attribute.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">scanincludeddirectories</td>
    <td valign="top">If any directories are matched by the
      includes/excludes patterns, try to transform all files in these
      directories.  Default is <code>true</code></td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">reloadstylesheet</td>
    <td valign="top">Control whether the stylesheet transformer is created
    anew for every transform opertaion. If you set this to true, performance may
    suffer, but you may work around a bug in certain Xalan-J versions.
    Default is <code>false</code>.  <em>Since Ant 1.5.2</em>.</td>
    <td valign="top" align="center">No</td>
  </tr>
</table>
<h3>Parameters specified as nested elements</h3>
<h4>classpath</h4>
<p>The classpath to load the processor from can be specified via a
nested <code>&lt;classpath&gt;</code>, as well - that is, a
<a href="../using.html#path">path</a>-like structure.</p>

<h4>xmlcatalog</h4>
<p>The <a href="../CoreTypes/xmlcatalog.html">xmlcatalog</a>
element is used to perform Entity and URI resolution.</p>

<h4>param</h4>
<p>Param is used to pass a parameter to the XSL stylesheet.</p>
<h4>Parameters</h4>
<table width="60%" border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">name</td>
    <td valign="top">Name of the XSL parameter</td>
    <td align="center" valign="top">Yes</td>
  </tr>
  <tr>
    <td valign="top">expression</td>
    <td valign="top">Text value to be placed into the param.<br/>
    Was originally intended to be an XSL expression.</td>
    <td align="center" valign="top">Yes</td>
  </tr>
  <tr>
    <td valign="top">if</td>
    <td valign="top">The param will only passed if this property is set.</td>
    <td align="center" valign="top">No</td>
  </tr>
  <tr>
    <td valign="top">unless</td>
    <td valign="top">The param will only passed unless this property is set.</td>
    <td align="center" valign="top">No</td>
  </tr>

</table>

<h4>outputproperty ('trax' processors only)</h4>
<p>Used to specify how you wish the result tree to be output
as specified in the <a href="http://www.w3.org/TR/xslt#output">
XSLT specifications</a>.
<h4>Parameters</h4>
<table width="60%" border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">name</td>
    <td valign="top">Name of the property</td>
    <td align="center" valign="top">Yes</td>
  </tr>
  <tr>
    <td valign="top">value</td>
    <td valign="top">value of the property.</td>
    <td align="center" valign="top">Yes</td>
  </tr>
</table>

<h4>factory ('trax' processors only)</h4>
Used to specify factory settings.
<h4>Parameters</h4>
<table width="60%" border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">name</td>
    <td valign="top">fully qualified classname of the
    transformer factory to use. For example
      <tt>org.apache.xalan.processor.TransformerFactoryImpl</tt>
       or <tt>org.apache.xalan.xsltc.trax.TransformerFactoryImpl</tt>
       or <tt>net.sf.saxon.TransformerFactoryImpl</tt>...
    </td>
    <td align="center" valign="top">No. Defaults to the JAXP lookup mechanism.</td>
  </tr>
</table>
<blockquote>
<h4>attribute </h4>
<p>Used to specify settings of the processor factory.
The attribute names and values are entirely processor specific
so you must be aware of the implementation to figure them out.
Read the documentation of your processor.
For example, in Xalan 2.x:
<ul>
<li>http://xml.apache.org/xalan/features/optimize (boolean)</li>
<li>http://xml.apache.org/xalan/features/incremental (boolean)</li>
<li>...</li>
</ul>
And in Saxon 7.x:
<ul>
<li>http://saxon.sf.net/feature/allow-external-functions (boolean)</li>
<li>http://saxon.sf.net/feature/timing (boolean)</li>
<li>http://saxon.sf.net/feature/traceListener (string)</li>
<li>http://saxon.sf.net/feature/treeModel (integer)</li>
<li>http://saxon.sf.net/feature/linenumbering (integer)</li>
<li>...</li>
</ul>
<h4>Parameters</h4>
<table width="60%" border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">name</td>
    <td valign="top">Name of the attribute</td>
    <td align="center" valign="top">Yes</td>
  </tr>
  <tr>
    <td valign="top">value</td>
    <td valign="top">value of the attribute.</td>
    <td align="center" valign="top">Yes</td>
  </tr>
</table>
</blockquote>

<h4>mapper</h4>

<p><em>since Ant 1.6.2</em></p>

<p>You can define filename transformations by using a nested <a
href="../CoreTypes/mapper.html">mapper</a> element. The default mapper
used by <code>&lt;xslt&gt;</code> removes the file extension from the
source file and adds the extension specified via the extension
attribute.</p>

<h3>Examples</h3>
<blockquote>
  <pre>
&lt;style basedir=&quot;doc&quot; destdir=&quot;build/doc&quot;
       extension=&quot;.html&quot; style=&quot;style/apache.xsl&quot;/&gt;</pre>
  <h4>Using an xmlcatalog</h4>
  <pre>
&lt;xslt basedir=&quot;doc&quot; destdir=&quot;build/doc&quot;
      extension=&quot;.html&quot; style=&quot;style/apache.xsl&quot;&gt;
  &lt;xmlcatalog refid=&quot;mycatalog&quot;/&gt;
&lt;/xslt&gt;

&lt;xslt basedir=&quot;doc&quot; destdir=&quot;build/doc&quot;
   extension=&quot;.html&quot; style=&quot;style/apache.xsl&quot;&gt;
   &lt;xmlcatalog&gt;
       &lt;dtd
         publicId=&quot;-//ArielPartners//DTD XML Article V1.0//EN&quot;
         location=&quot;com/arielpartners/knowledgebase/dtd/article.dtd&quot;/&gt;
   &lt;/xmlcatalog&gt;
&lt;/xslt&gt;
</pre>
  <h4>Using XSL parameters</h4>
<pre>
&lt;xslt basedir=&quot;doc&quot; destdir=&quot;build/doc&quot;
      extension=&quot;.html&quot; style=&quot;style/apache.xsl&quot;&gt;
  &lt;param name=&quot;date&quot; expression=&quot;07-01-2000&quot;/&gt;
&lt;/xslt&gt;</pre>

  <p>Then if you declare a global parameter &quot;date&quot; with the top-level
  element &lt;xsl:param name=&quot;date&quot;/&gt;, the variable
  <code>$date</code> will subsequently have the value 07-01-2000.
  </p>

  <h4>Using output properties</h4>
<pre>
&lt;xslt in=&quot;doc.xml&quot; out=&quot;build/doc/output.xml&quot;
      style=&quot;style/apache.xsl&quot;&gt;
  &lt;outputproperty name=&quot;method&quot; value=&quot;xml&quot;;/&gt;
  &lt;outputproperty name=&quot;standalone&quot; value=&quot;yes&quot;/&gt;
  &lt;outputproperty name=&quot;encoding&quot; value=&quot;iso8859_1&quot;/&gt;
  &lt;outputproperty name=&quot;indent&quot; value=&quot;yes&quot;/&gt;
&lt;/xslt&gt;
</pre>

  <h4>Using factory settings</h4>
<pre>
&lt;xslt in=&quot;doc.xml&quot; out=&quot;build/doc/output.xml&quot;
      style=&quot;style/apache.xsl&quot;&gt;
  &lt;factory name=&quot;org.apache.xalan.processor.TransformerFactoryImpl&quot;&gt;
    &lt;attribute name=&quot;http://xml.apache.org/xalan/features/optimize&quot; value=&quot;true&quot;/&gt;
  &lt;/factory&gt;
&lt;/xslt&gt;</pre>

  <h4>Using a mapper</h4>
<pre>
&lt;xslt basedir=&quot;in&quot; destdir=&quot;out&quot;
      style=&quot;style/apache.xsl&quot;&gt;
  &lt;mapper type=&quot;glob&quot; from=&quot;*.xml.en&quot; to=&quot;*.html.en&quot;/&gt;
&lt;/xslt&gt;</pre>

<hr>
<p align="center">Copyright &copy; 2000-2005 The Apache Software Foundation. All rights
Reserved.</p>

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