Additional
Information: Rigal is a programming language whose main data structures are atoms, lists and trees. The control structures are based on advanced pattern matching. All phases of compilation, including parsing, optimization and code generation, can be programmed in this
Languages and Compilers - Rigal
Introduction to programming language Rigal. Offers links to other programming language and compilers. http://www.sai.msu.su/sal/F/1/RIGAL.html
RIGAL
Language description. http://www.ida.liu.se/~vaden/rigal/langdesc.html