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<title>PathConvert Task</title>
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<h2 id="pathconvert">Pathconvert</h2>
<h3>Description</h3>
<p>Converts nested <a href="../Types/resources.html#collection">resource collections</a>, or a
reference to just one, into a path form for a particular platform, optionally storing the result
into a property or writing to an Ant <a href="../Types/resources.html">resource</a>.
It can also be used when you need to convert a resource collection into a
list, separated by a given character, such as a comma or space, or, conversely, e.g. to convert a
list of files in a FileList into a path.</p>
<p>Nested <code>&lt;map&gt;</code> elements can be specified to map Windows drive letters to Unix
paths, and vice-versa.</p>
<p>More complex transformations can be achieved using a
nested <a href="../Types/mapper.html"><code>&lt;mapper&gt;</code></a> (<em>since Apache Ant
1.6.2</em>).</p>

<h3>Parameters</h3>
<table class="attr">
  <tr>
    <th scope="col">Attribute</th>
    <th scope="col">Description</th>
    <th scope="col">Required</th>
  </tr>
  <tr>
    <td>targetos</td>
    <td>The target architecture.  Must be one
        of <q>unix</q>, <q>windows</q>, <q>netware</q>, <q>tandem</q> or <q>os/2</q>.  This is a
        shorthand mechanism for specifying both <var>pathsep</var> and <var>dirsep</var> according
        to the specified target architecture.</td>
    <td>No</td>
  </tr>
  <tr>
    <td>dirsep</td>
    <td>The character(s) to use as the directory separator in the generated paths.</td>
    <td>No; defaults to current JVM <code>File.separator</code></td>
  </tr>
  <tr>
    <td>pathsep</td>
    <td>The character(s) to use as the path-element separator in the generated paths.</td>
    <td>No; defaults to current JVM <code>File.pathSeparator</code></td>
  </tr>
  <tr>
    <td>property</td>
    <td>The name of the property in which to place the converted path.</td>
    <td>No, result will be logged if neither <code>@property</code> nor <code>@dest</code> is set</td>
  </tr>
  <tr>
    <td>dest</td>
    <td>A destination resource into which to write the converted path (Ant interprets this as a
        <code>File</code> by default).
    </td>
    <td>No, result will be logged if neither <code>@property</code> nor <code>@dest</code> is set</td>
  </tr>
  <tr>
    <td>refid</td>
    <td>What to convert, given as a <a href="../using.html#references">reference</a> to
      a <code>&lt;path&gt;</code>, <code>&lt;fileset&gt;</code>, <code>&lt;dirset&gt;</code>,
      or <code>&lt;filelist&gt;</code> defined elsewhere</td>
    <td>Yes, unless a nested <code>&lt;path&gt;</code> element is supplied</td>
  </tr>
  <tr>
    <td>setonempty</td>
    <td>Should the property be set, even if the result is the empty string?</td>
    <td>No; default is <q>true</q></td>
  </tr>
  <tr>
    <td>preserveduplicates</td>
    <td>Whether to preserve duplicate resources. <em>Since Ant 1.8</em></td>
    <td>No; default is <q>false</q></td>
  </tr>
</table>
<h3>Parameters specified as nested elements</h3>
<h4>map</h4>
<p>Specifies the mapping of path prefixes between Unix and Windows.</p>
<table class="attr">
  <tr>
    <th scope="col">Attribute</th>
    <th scope="col">Description</th>
    <th scope="col">Required</th>
  </tr>
  <tr>
    <td>from</td>
    <td>The prefix to match.  Note that this value is case-insensitive when the build is running on
      a Windows platform and case-sensitive when running on a Unix platform.  <em>Since Ant
      1.7.0</em>, on Windows this value is also insensitive to the slash style used for directories,
      one can use <q>/</q> or <q>\</q>.</td>
    <td>Yes</td>
  </tr>
  <tr>
    <td>to</td>
    <td>The replacement text to use when <var>from</var> is matched.</td>
    <td>Yes</td>
  </tr>
</table>

<p>Each map element specifies a single replacement map to be applied to the elements of the path
being processed.  If no map entries are specified, then no path prefix mapping is performed.</p>
<p><strong>Note</strong>: The map elements are applied in the order specified, and only the first
matching map element is applied.  So, the ordering of your map elements can be important, if
any <var>from</var> values are prefixes of other <var>from</var> values.</p>
<h4>resource collections</h4>
<p>If the <var>refid</var> attribute is not specified, then one or more
nested <a href="../Types/resources.html#collection">resource collections</a> must be supplied.</p>
<h4>mapper</h4>
<p>A single nested <a href="../Types/mapper.html"><code>&lt;mapper&gt;</code></a> element can be
specified to perform any of various filename transformations (<em>since Ant 1.6.2</em>).</p>

<h3>Examples</h3>
<p>In the examples below, assume that the <samp>${wl.home}</samp> property has the
value <samp>d:\weblogic</samp>, and <samp>${wl.home.unix}</samp> has the
value <samp>/weblogic</samp>.</p>
<h4>Example 1</h4>
<p>Here, the task</p>
<pre>
&lt;path id="wl.path"&gt;
  &lt;pathelement location=&quot;${wl.home}/lib/weblogicaux.jar&quot;/&gt;
  &lt;pathelement location=&quot;${wl.home}/classes&quot;/&gt;
  &lt;pathelement location=&quot;${wl.home}/mssqlserver4/classes&quot;/&gt;
  &lt;pathelement location=&quot;c:\winnt\System32&quot;/&gt;
&lt;/path&gt;

&lt;pathconvert targetos=&quot;unix&quot; property=&quot;wl.path.unix&quot; refid=&quot;wl.path&quot;&gt;
  &lt;map from=&quot;${wl.home}&quot; to=&quot;${wl.home.unix}&quot;/&gt;
  &lt;map from=&quot;c:&quot; to=&quot;&quot;/&gt;
&lt;/pathconvert&gt;</pre>
<p>will generate the path shown below and store it in the property
named <code>wl.path.unix</code>.</p>
<pre class="output">/weblogic/lib/weblogicaux.jar:/weblogic/classes:/weblogic/mssqlserver4/classes:/WINNT/SYSTEM32</pre>

<h4>Example 2</h4>
<p>Given a FileList defined as:</p>
<pre>
&lt;filelist id=&quot;custom_tasks.jars&quot;
          dir=&quot;${env.HOME}/ant/lib&quot;
          files=&quot;njavac.jar,xproperty.jar&quot;/&gt;</pre>
<p>then:</p>
<pre>
&lt;pathconvert targetos=&quot;unix&quot; property=&quot;custom_tasks.jars&quot; refid=&quot;custom_tasks.jars&quot;&gt;
  &lt;map from=&quot;${env.HOME}&quot; to=&quot;/usr/local&quot;/&gt;
&lt;/pathconvert&gt;</pre>
<p>will convert the list of files to the following Unix path:</p>
<pre class="output">/usr/local/ant/lib/njavac.jar:/usr/local/ant/lib/xproperty.jar</pre>

<h4>Example 3</h4>
<p>Here, the names of files determined by the fileset (all files ending in <samp>.java</samp>) are
joined separated by comma, and the resulting list is placed into the
property <code>javafiles</code>. The directory separator is not specified, so it defaults to the
appropriate character for the current platform. Such a list could then be used in another task,
like <code>javadoc</code>, that requires a comma separated list of files.</p>
<pre>
&lt;fileset dir=&quot;${src.dir}&quot; id=&quot;src.files&quot;&gt;
  &lt;include name=&quot;**/*.java&quot;/&gt;
&lt;/fileset&gt;

&lt;pathconvert pathsep=&quot;,&quot; property=&quot;javafiles&quot; refid=&quot;src.files&quot;/&gt;</pre>

<h4>Example 4</h4>
<p>This task sets the property <code>prop</code> to <q>def|ghi</q> on Windows and on Unix.</p>
<pre>
&lt;pathconvert property="prop" dirsep="|"&gt;
  &lt;map from="${basedir}/abc/" to=&quot;&quot;/&gt;
  &lt;path location="abc/def/ghi"/&gt;
&lt;/pathconvert&gt;</pre>
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