dirgroup is a Perl script for merging the contents of a directory, /etc/group.d, into the file /etc/group. Storing group information in a directory allows users other than root to own and manage Unix groups. This minor change to Unix permission semantics provides many of the advantages of much more complex ACL systems.
Lithos is an evolutionary computation system using a computationally complete stack-based representation language. The sample application evolves programs to play the game of Go. The system can be applied to other areas by plugging in a different evaluation function. ANSI C source code is provided.
XML-DBMS (Perl) is a port of the Java version of XML-DBMS. XML-DBMS is middleware for transferring data between XML documents and relational databases. It views the XML document as a tree of data-specific objects in which element types are generally viewed as classes and attributes and PCDATA as properties of those classes. It then uses an object-relational mapping to map these objects to the database. An XML-based mapping language is used to define the view and map it to the database.