build.xml

<?xml version="1.0"?>
<project name="Hello World Project" default="run" basedir="./">
	<target name="beavertask" unless="beaver.available" description="creates Beaver Ant task">
		<taskdef name="beaver" classname="beaver.comp.run.AntTask" classpath="./beaver.jar"/>
		<property name="beaver.available" value="yes"/>
	</target>
	<target name="jflextask" unless="jflex.available" description="creates JFlex Ant task">
		<taskdef name="jflex" classname="jflex.anttask.JFlexTask" classpath="./jflex.jar"/>
		<property name="jflex.available" value="yes"/>
	</target>
	<target name="parser" depends="beavertask, jflextask" description="generates parser">
		<beaver file     = "path.grammar"
		sortTerminals    = "yes"
		exportTables     = "yes"
		exportTerminals  = "yes" />
		<jflex file      = "path.flex"
		nobak            = "yes" />
	</target>
	<target name="build" depends="parser" description="builds parser">
		<javac srcdir="./" classpath="beaver.jar" includeantruntime="false">
			<compilerarg value="-Xlint:unchecked" />
		</javac>
	</target>
	<target name="run" depends="build" description="runs parser">
		<java classname="Main" classpath="beaver.jar">
			<arg value="test.txt"/>
			<classpath>
				<pathelement location="."/>
				<pathelement path="beaver.jar"/>
			</classpath>
		</java>
	</target>
</project>