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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/">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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<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>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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