The YAFL Programming Language Mid-term research project to design, implement an object-oriented language, and several attached tools; major goals: be strict language with inheritance and garbage collector, unique compiler support facility. [Open Source, GPL] http://www.phidani.be/yafl/

Hello World Simple example of YAFL program. http://www.ntecs.de/old-hp/uu9r/lang/html/yafl.en.html#_Hello%20World

Oakwood Guidelines A companion to the O2 language report which clarifies issues for compiler writers and users. http://smalllinux.sourceforge.net/oberon/oakwood.htm