This zip file contains some classes in the org.merlin.io package and
org.merlin.lang package.  These classes were described at 
   http://www.javaworld.com/javaworld/jw-04-1999/jw-04-step.html

Unpack the zip file, and move the org directory to become a
subdirectory of your current directory or your CLASSPATH directory.

See DataReaderTest.java for a usage example.  
