Process docbook to epub within ant script, using DocBook XSL stylesheets.
<project name="docbook-ant-task-to-epub" default="docbook-to-epub"><taskdef name="dbk"classname="net.sourceforge.ant4docbook.taskdefs.DocbookTask"classpath="PATH/TO/ant4docbook.jar"/><target name="docbook-to-epub"><dbk file="docbook.xml" tofile="generated-epub-file.epub" /></target>__</project>