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<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
<title>XSLT Task</title>
</head>
<body>
<h2><a name="style">XSLT</a></h2>
<p><em>The name <code>style</code> is a deprecated name for the same task.</em></p>
<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 Apache Ant distribution. However, often the built in XSL engine is not as up
to date as a fresh download, so an update is still highly recommended
in particular since the built-in XSLT processors of Java 5 (and to a
certain extent Java 6) are known to have serious issues.
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="../Types/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>Starting with Ant 1.7 this task supports nested <a
href="../Types/resources.html#collection">resource collection</a>s
in addition to (or instead of, depending on the useImplicitFileset
attribute) the implicit fileset formed by this task.</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="../Types/xmlcatalog.html">xmlcatalog</a>
element which is used to perform Entity and URI resolution.</p>
<p><b>Note on XSLT extension functions</b>: when using the default
TraX implementation of the Java class library and
a <code>SecurityManager</code> is active - e.g. when running from
within an IDE - XSLT extension functions cannot be used as "secure
processing" is active in Java 7 and above. Ant contains a special
"hack" that allows XSLT extensions to be used in Java 7 and 8, but
this hack fails for Java 9. If you want to use extensions like the
redirect extension that are provided by the Java class library
itself, you can allow them by enabling the
feature <code>http://www.oracle.com/xml/jaxp/properties/enableExtensionFunctions</code>
in Java 9 and above. If you need to use an extension function not
provided by Java itself you can set the
attribute <code>jdk.xml.transform.extensionClassLoader</code> to a
classloader (reference to an Ant PATH-like structure).</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> or both <code>in</code> and
<code>out</code> have 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.<br/>
<br/>
Alternatively, a nested element which ant can interpret as a resource
can be used to indicate where to find the stylesheet<br/>
<em>deprecated variation :</em> <br/>
If the stylesheet cannot be found, and if you have specified the
attribute basedir for the task, ant will assume that the style
attribute is relative to the basedir of the task.
</td>
<td align="center" valign="top">No, if the location of
the stylesheet is specified using a nested &lt;style&gt; element</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 value is :<ul>
<li>&quot;trax&quot; for a TraX compliant processor (ie JAXP interface
implementation such as Xalan 2 or Saxon)</li></ul>
Defaults to trax.
<br/>
Support for xalan1 has been removed in ant 1.7.
</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 operation. 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>
<tr>
<td valign="top">useImplicitFileset</td>
<td valign="top">Whether the implicit fileset formed by this task
shall be used. If you set this to false you must use nested
resource collections - or the in attribute, in which case this
attribute has no impact anyway. Default is <code>true</code>.
<em>Since Ant 1.7</em>.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">filenameparameter</td>
<td valign="top">Specifies a xsl parameter for accessing the name
of the current processed file. If not set, the file name is not
passed to the transformation.
<em>Since Ant 1.7</em>.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">filedirparameter</td>
<td valign="top">Specifies a xsl parameter for accessing the directory
of the current processed file. For files in the current directory a
value of '.' will be passed to the transformation.
If not set, the directory is not passed to the transformation.
<em>Since Ant 1.7</em>.</td>
<td valign="top" align="center">No</td>
</tr>
<tr>
<td valign="top">suppressWarnings</td>
<td valign="top">Whether processor warnings shall be suppressed.
This option requires support by the processor, it is supported by
the trax processor bundled with Ant.
<em>Since Ant 1.8.0</em>.</td>
<td valign="top" align="center">No, default is false.</td>
</tr>
<tr>
<td valign="top">failOnError</td>
<td valign="top">Whether the build should fail if any error
occurs. Note that transformation errors can still be suppressed by
setting failOnTransformationError to false even if this attribute
is true.
<em>Since Ant 1.8.0</em>.</td>
<td valign="top" align="center">No, default is true.</td>
</tr>
<tr>
<td valign="top">failOnTransformationError</td>
<td valign="top">Whether the build should fail if an error occurs
while transforming the document. Note that this attribute has no
effect of <code>failOnError</code> is false.
<em>Since Ant 1.8.0</em>.</td>
<td valign="top" align="center">No, default is true.</td>
</tr>
<tr>
<td valign="top">failOnNoResources</td>
<td valign="top">Whether the build should fail if the nested
resource collection is empty. Note that this attribute has no
effect of <code>failOnError</code> is false.
<em>Since Ant 1.8.0</em>.</td>
<td valign="top" align="center">No, default is true.</td>
</tr>
</table>
<h3>Parameters specified as nested elements</h3>
<h4>any <a href="../Types/resources.html#collection">resource
collection</a></h4>
<p><em>since Ant 1.7</em></p>
<p>Use resource collections to specify resources that the stylesheet
should be applied to. Use a nested mapper and the task's destdir
attribute to specify the output files.</p>
<h4><a name="classpath">classpath</a></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="../Types/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>
<blockquote>
<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">
The value to be placed into the param or an XPath expression
(depending on <code>type</code>).
</td>
<td align="center" valign="top">Yes</td>
</tr>
<tr>
<td valign="top">type</td>
<td valign="top">
Data type of the parameter. Possible values are:
<ul>
<li><code>STRING</code></li>
<li><code>BOOLEAN</code></li>
<li><code>INT</code></li>
<li><code>LONG</code></li>
<li><code>DOUBLE</code></li>
<li><code>XPATH_STRING</code></li>
<li><code>XPATH_BOOLEAN</code></li>
<li><code>XPATH_NUMBER</code></li>
<li><code>XPATH_NODE</code></li>
<li><code>XPATH_NODESET</code></li>
</ul>
<em>since Ant 1.9.3</em>
</td>
<td align="center" valign="top">No; default is <code>STRING</code></td>
</tr>
<tr>
<td valign="top">if</td>
<td valign="top">The param will only be passed <a href="../properties.html#if+unless">if this property is set</a>.</td>
<td align="center" valign="top">No</td>
</tr>
<tr>
<td valign="top">unless</td>
<td valign="top">The param will not be passed <a href="../properties.html#if+unless">if this property is set</a>.</td>
<td align="center" valign="top">No</td>
</tr>
</table>
</blockquote>
<p>
The <code>XPATH_*</code> types says that the <code>expression</code> is not just a primitive-type value but an XPath expression.
This expression will be evaluated on an empty XML document and the result will be passed to the XSLT transformer as a parameter of given type.
In these expressions the declared Ant properties can be used as XPath variables e.g. <code>$someProperty</code>.
So you can compute something using standard XPath functions and operators.
</p>
<p>
If you write <code>${someProperty}</code> instead of <code>$someProperty</code>,
the value will be simply substituted by Ant before evaluating the XPath expression
(this substitution works also for primitive types).
</p>
<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>.
<blockquote>
<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>
</blockquote>
<h4><a name="factory">factory ('trax' processors only)</a></h4>
Used to specify factory settings.
<blockquote>
<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>
<h3>Parameters specified as nested elements</h3>
<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>
<blockquote>
<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="middle" rowspan="3">Exactly one of these</td>
</tr>
<tr>
<td valign="top">valueref</td>
<td valign="top">value of the attribute is the value of the
project reference with the given id. <em>since Ant 1.9.8</em></td>
</tr>
<tr>
<td valign="top">classloaderforpath</td>
<td valign="top">value of the attribute is a classloader that uses
the classpath specified by a path that is the project reference
with the given id. <em>since Ant 1.9.8</em></td>
</tr>
</table>
<h4>Examples</h4>
<pre>
&lt;path id="extension-path"&gt;
...
&lt;/path&gt;
&lt;xslt ...&gt;
&lt;factory&gt;
&lt;attribute name="jdk.xml.transform.extensionClassLoader"
classloaderforpath="extension-path"/&gt;
&lt;/factory&gt;
&lt;/xslt ...&gt;
</pre>
<p>Sets the classloader to use when loading extension functions to a
classloader using the <code>path</code> with the
id <code>extension-path</code>.
</blockquote>
<h4>feature</h4>
<p><em>since Ant 1.9.8</em></p>
<p>Used to specify settings of the processor factory. The feature
names are mostly processor specific so you must be aware of the
implementation to figure them out. Read the documentation of your
processor. The only feature all implementations are required to
support
is <code>http://javax.xml.XMLConstants/feature/secure-processing</code>.
<blockquote>
<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 feature</td>
<td align="center" valign="top">Yes</td>
</tr>
<tr>
<td valign="top">value</td>
<td valign="top">value of the feature. A boolean value
(i.e. permitted values are true,false,yes,no,on,off).</td>
<td align="center" valign="top">No, defaults to false</td>
</tr>
</table>
</blockquote>
</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="../Types/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>
<h4>style</h4>
<p><em>Since Ant 1.7</em></p>
<p>The nested style element can be used to specify your stylesheet in terms
of Ant's <a href="../Types/resources.html">resource</a> types. With
this element, the stylesheet should be specified as a nested resource or
single-element collection. Alternatively, use the <code>refid</code> to
specify the resource or collection as a reference.</p>
<h4>sysproperty</h4>
<p>Use nested <code>&lt;sysproperty&gt;</code> elements to specify
system properties required by the factory or transformation. These
properties will be made available to the VM during the execution of
the class. The attributes for this element are the same as
for <a href="exec.html#env">environment variables</a>.</p>
<p><em>since Ant 1.8.0</em>.</p>
<h4>syspropertyset</h4>
<p>You can specify a set of properties to be used as system properties
with <a href="../Types/propertyset.html">syspropertyset</a>s.</p>
<p><em>since Ant 1.8.0</em>.</p>
<h3>Examples</h3>
<blockquote>
<pre>
&lt;xslt 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>
<p>Simple String parameter:</p>
<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>
<p>Various data types and XPath expressions:</p>
<pre>&lt;property name="antProperty1" value="ANT_PROPERTY_1"/&gt;
&lt;property name="antProperty2" value="ANT_PROPERTY_2"/&gt;
&lt;property name="antProperty3" value="3"/&gt;
&lt;property name="antProperty4" value="substring-before"/&gt;
&lt;!--
${this} is substituted by Ant itself
and $this is evaluated by XPath as a variable
--&gt;
&lt;xslt in="in.xml" out="out.xml" style="template.xsl"&gt;
&lt;!-- Simple String parameter: --&gt;
&lt;param name="p0" expression="some nice string" type="STRING"/&gt;
&lt;!-- A value substituted by Ant --&gt;
&lt;param name="p1" expression="some string with ${antProperty1} constructed by Ant" type="STRING"/&gt;
&lt;!-- XPath resulting in: and this is done in XPath: ANT_PROPERTY_2 --&gt;
&lt;param name="p2" expression="concat('and this is done in XPath: ', $antProperty2)" type="XPATH_STRING"/&gt;
&lt;!-- Some XPath math, result: 42 --&gt;
&lt;param name="p3" expression="64 * 64 div 128 + 10" type="XPATH_NUMBER"/&gt;
&lt;!-- Some numeric parameter: --&gt;
&lt;param name="p4" expression="123.45" type="DOUBLE"/&gt;
&lt;!-- XPath expression, result: true boolean --&gt;
&lt;param name="p5" expression="$antProperty1 = 'ANT_PROPERTY_1'" type="XPATH_BOOLEAN"/&gt;
&lt;!-- First one is an XPath variable, second one is a text substituted by Ant, result: true boolean --&gt;
&lt;param name="p6" expression="$antProperty2 = '${antProperty2}'" type="XPATH_BOOLEAN"/&gt;
&lt;!-- Some XPath math with a variable, result: 64 --&gt;
&lt;param name="p7" expression="$antProperty3 * 4 * 5 + 4" type="XPATH_NUMBER"/&gt;
&lt;!--
XPath expression with substituted function name and a variable:
substring-before($antProperty2, '_')
result: ANT
--&gt;
&lt;param name="p8" expression="${antProperty4}($antProperty2, '_')" type="XPATH_STRING"/&gt;
&lt;!-- Without type attribute: --&gt;
&lt;param name="p9" expression="default type is String"/&gt;
&lt;/xslt&gt;</pre>
<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>
<h4>Using a nested resource to define the stylesheet</h4>
<pre>
&lt;xslt in="data.xml" out="${out.dir}/out.xml"&gt;
&lt;style&gt;
&lt;url url="${printParams.xsl.url}"/&gt;
&lt;/style&gt;
&lt;param name="set" expression="value"/&gt;
&lt;/xslt&gt;</pre>
<h4>Print the current processed file name</h4>
<pre>
&lt;project&gt;
&lt;xslt style=&quot;printFilename.xsl&quot; destdir=&quot;out&quot; basedir=&quot;in&quot; extension=&quot;.txt&quot;
filenameparameter=&quot;filename&quot;
filedirparameter=&quot;filedir&quot;
/&gt;
&lt;/project&gt;
&lt;xsl:stylesheet
version=&quot;1.0&quot;
xmlns:xsl=&quot;http://www.w3.org/1999/XSL/Transform&quot;&gt;
&lt;xsl:param name=&quot;filename&quot;&gt;&lt;/xsl:param&gt;
&lt;xsl:param name=&quot;filedir&quot;&gt;.&lt;/xsl:param&gt;
&lt;xsl:template match=&quot;/&quot;&gt;
Current file is &lt;xsl:value-of select=&quot;$filename&quot;/&gt; in directory &lt;xsl:value-of select=&quot;$filedir&quot;/&gt;.
&lt;/xsl:template&gt;
&lt;/xsl:stylesheet&gt;
</pre>
<h4>Use an XInclude-aware version of Xerces while transforming</h4>
<pre>
&lt;xslt ...&gt;
&lt;sysproperty key="org.apache.xerces.xni.parser.XMLParserConfiguration"
value="org.apache.xerces.parsers.XIncludeParserConfiguration"
/&gt;
&lt;xslt&gt;
</pre>
</blockquote>
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