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- Fixed some other places too. git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269675 13f79535-47bb-0310-9956-ffa450edef68
117 lines
4.1 KiB
HTML
117 lines
4.1 KiB
HTML
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<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<title>MParse Task</title>
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</head>
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<body>
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<h2><a name="mparse">MParse</a></h2>
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<p>by</p>
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<ul>
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<li>Stephane Bailliez (<a href="mailto:sbailliez@imediation.com">sbailliez@imediation.com</a>)</li>
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</ul>
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<h3>Requirements</h3>
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<p>This task requires Metamata Development environment 2.0 freely available at <a href="http://www.metamata.com">Metamata</a>.</p>
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<h3>Description</h3>
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<p>
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Invokes the Metamata <a HREF="http://www.metamata.com/parse.html">MParse</a> compiler
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compiler on a grammar file.
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</p>
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<p>
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To use the <i>mparse</i> task, set the <i>target</i> attribute to the name of the
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grammar file to process. You also need to specify the directory containing
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the Metamata installation using the <i>metamatahome</i> attribute, so that Ant
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can find the MParse classes.
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</p>
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<p>
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This task only invokes MParse if the grammar file is newer than the generated
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Java files. MParse assumes that the Java class name of the generated parser
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is the same as the name of the grammar file, less the .jj extension.
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</p>
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<p>For additional information about MParse, please consult the online manual available <a href="http://download.metamata.com/parse.pdf">here</a>
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(PDF)
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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 .jj grammar file to process. It will only be processed
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if the grammar is newer than the corresponding .java file.</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">metamatahome</td>
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<td valign="top">The home directory containing the Metamata distribution.</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">verbose</td>
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<td valign="top">
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Enable all messages
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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">debugparser</td>
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<td valign="top">
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Enables parser debugging
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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">debugscanner</td>
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<td valign="top">
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Enables scanner debugging
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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">cleanup</td>
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<td valign="top">Remove the intermediate Sun
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JavaCC file created during the transformation of the grammar file.</td>
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<td valign="top" align="center">No. Default to false</td>
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</tr>
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<tr>
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<td valign="top">maxmemory</td>
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<td valign="top">Set the maximum memory for the JVM. this is a convenient
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way to set the -mx or -Xmx argument.</td>
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<td valign="top" align="center">No</td>
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</tr>
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</table>
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<h3>Nested elements</h3>
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<h4>jvmarg</h4>
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<p>Additional parameters may be passed to the VM via nested <code><jvmarg></code>
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attributes. <code><jvmarg></code> allows all attributes described in <a href="../using.html#arg">Command
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line arguments</a>.</p>
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<h4>classpath</h4>
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<p>Sets class path (also source path unless one explicitly set). Overrides
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METAPATH/CLASSPATH environment variables. The <tt>classpath</tt> element represents a <a href="../using.html#path">PATH like
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structure</a>.</p>
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<h4>sourcepath</h4>
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<p>Sets source path. Overrides the SOURCEPATH environment variable. The <tt>sourcepath</tt> element represents a <a href="../using.html#path">PATH like
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structure</a>.</p>
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<h3>Example</h3>
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<pre> <mparse target="c:/metamata/examples/parseexamples/javagrammars/singlefile/JavaParser.jj"
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metamatahome="c:/metamata" cleanup="true">
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<classpath>
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<pathelement location="c:/metamata/examples/"/>
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</classpath>
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</mparse></pre>
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<p>
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This invokes Metamata MParse installed in <tt>c:/metamata</tt> on one of the grammar file
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example <tt>(JavaParser.jj)</tt>
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and cleans up the intermediate Sun JavaCC file.
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</p>
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</body>
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</html>
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