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(1) Make sure there is a Copyright notice on all visible files. (2) Make sure all years in which the file has been modified are listed. (3) Make sure the format is consistent, i.e. separate consecutive years with a dash, not a comma. When Stephane changed starteam.html it has been 2001 in France but 2002 in Australia - does that mean we add 2002 to the Copyright line or not? ;-) git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270652 13f79535-47bb-0310-9956-ffa450edef68
114 lines
3.3 KiB
HTML
114 lines
3.3 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<title>ANTLR Task</title>
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</head>
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<body>
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<h2><a name="antlr">ANTLR</a></h2>
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<h3>Description</h3>
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<p>
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Invokes the <a HREF="http://www.antlr.org/" target="_top">ANTLR</a> Translator generator
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on a grammar file.
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</p>
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<p>
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To use the ANTLR task, set the <i>target</i> attribute to the name of the
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grammar file to process. Optionally, you can also set the
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<i>outputdirectory</i> to write the generated file to a specific directory.
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Otherwise ANTLR writes the generated files to the directory containing
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the grammar file.
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</p>
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<p>
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This task only invokes ANTLR if the grammar file is newer than the generated
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files.
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</p>
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<p>
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<i>
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To successfully run ANTLR, your best option is probably to build the whole
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jar with the provided script <b>mkalljar</b> and drop the resulting jar (about 300KB)
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into ${ant.home}/lib. Dropping the default jar (70KB) is probably not enough
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for most needs and your only option will be to add ANTLR home directory
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to your classpath as described in ANTLR <tt>install.html</tt> document.
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</i>
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</p>
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<h3>Parameters</h3>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">target</td>
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<td valign="top">The grammar file to process.</td>
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<td valign="top" align="center">Yes</td>
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</tr>
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<tr>
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<td valign="top">outputdirectory</td>
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<td valign="top">
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The directory to write the generated files to. If not set, the files
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are written to the directory containing the grammar file.
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</td>
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<td valign="top" align="center">No</td>
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</tr>
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<!--tr>
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<td valign="top">fork</td>
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<td valign="top">Run ANTLR in a separate VM.</td>
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<td align="center" valign="top">No, default is "off"</td>
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</tr-->
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<tr>
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<td valign="top">dir</td>
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<td valign="top">The directory to invoke the VM in. <!--(ignored if
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fork is disabled)--></td>
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<td align="center" valign="top">No</td>
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</tr>
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</table>
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<h3><a name="nested">Nested Elements</a></h3>
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<p><code>ANTLR</code> supports a nested <code><classpath></code>
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element, that represents a <a href="../using.html#path">PATH like
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structure</a>. It is given as a convenience if you have to specify
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the original ANTLR directory. In most cases, dropping the appropriate
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ANTLR jar in the normal Ant lib repository will be enough.</p>
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<h4>jvmarg</h4>
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<p><!--If fork is enabled, -->Additional parameters may be passed to the new
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VM via nested <code><jvmarg></code> attributes, for example:</p>
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<pre>
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<antlr target=...>
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<jvmarg value="-Djava.compiler=NONE"/>
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...
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</antlr>
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</pre>
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<p>would run ANTLR in a VM without JIT.</p>
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<p><code><jvmarg></code> allows all attributes described in <a
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href="../using.html#arg">Command line arguments</a>.</p>
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<h3>Example</h3>
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<blockquote><pre>
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<antlr
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target="etc/java.g"
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outputdirectory="build/src"
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/>
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</pre></blockquote>
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<p>
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This invokes ANTLR on grammar file etc/java.g, writing the generated
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files to build/src.
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</p>
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<hr>
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<p align="center">Copyright © 2001 Apache Software Foundation. All rights
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Reserved.</p>
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</body>
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</html>
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