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<title>ANTLR Task</title>
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<h2><a name="antlr">ANTLR</a></h2>
<h3>Description</h3>
<p>
Invokes the <a HREF="http://www.antlr.org/" target="_top">ANTLR</a> Translator generator
on a grammar file.
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<p>
To use the ANTLR task, set the <i>target</i> attribute to the name of the
grammar file to process. Optionally, you can also set the
<i>outputdirectory</i> to write the generated file to a specific directory.
Otherwise ANTLR writes the generated files to the directory containing
the grammar file.
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<p>
This task only invokes ANTLR if the grammar file is newer than the generated
files.
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<h3>Parameters</h3>
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<td valign="top"><b>Attribute</b></td>
<td valign="top"><b>Description</b></td>
<td align="center" valign="top"><b>Required</b></td>
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<td valign="top">target</td>
<td valign="top">The grammar file to process.</td>
<td valign="top" align="center">Yes</td>
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<td valign="top">outputdirectory</td>
<td valign="top">
The directory to write the generated files to. If not set, the files
are written to the directory containing the grammar file.
</td>
<td valign="top" align="center">No</td>
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<td valign="top">fork</td>
<td valign="top">Run ANTLR in a separate VM.</td>
<td align="center" valign="top">No, default is "off"</td>
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<td valign="top">dir</td>
<td valign="top">The directory to invoke the VM in. (ignored if
fork is disabled)</td>
<td align="center" valign="top">No</td>
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<h3>Example</h3>
<blockquote><pre>
<antlr
target="etc/java.g"
outputdirectory="build/src"
/>
</pre></blockquote>
<p>
This invokes ANTLR on grammar file etc/java.g, writing the generated
files to build/src.
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<p align="center">Copyright © 2000,2001 Apache Software Foundation. All rights
Reserved.</p>
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