OpenComal  
   COMmon Algorithmic Language, created in 1980s to teach structured programming, mixes BASIC and Pascal minus problems of each. Interpreted, portable; runs on DOS, Unix, Windows. Description, documents, history, download, links. [Open Source, GPL]
   http://ratbert.josvisser.nl/opencomal/

OpenCOMAL Linux-native COMAL  
   Brief description, screen shot, links.
   http://www.macharsoft.co.uk/opencomal/opencomal1.html

OpenComal Project Details  
   Brief description, links, information, downloads. [freshmeat.net]
   http://freshmeat.net/projects/opencomal/?topic_id=49

ML/1 Macro Processor  
   Ancient, very good, general purpose macro processor. First written in DEC PDP-7 assembly language by Peter J. Brown. Description, history, code samples, contact, downloads: binary, source. [Open Source, GPL]
   http://members.shaw.ca/parz/ML1.html

Tensile  
   Language made mainly for complex processing of text in SGML-like formats. Key feature: notion of finite-state automata used to define text transformations. Also made for Web programming, with inherent CGI abilities. Project page. [Savannah]
   http://savannah.nongnu.org/projects/nsl/

CATHOL  
   An acronym for Comfortably Apocalyptic, Totally Humanity-Oriented Language. It is imperative, procedural, not object-oriented, strongly typed, interpreted programming language.
   http://www.sanctacaris.net/cathol/