Continuing thread: http://groups.google.de/group/comp.lang.modula3/browse_thread/thread/810af39730c4ac6c?hl=de I have not followed this newsgroup for a while. Coco was already ported to Modula-3 and some time ago I lifted some of the restrictions (number of symbols etc.) in a CVS branch: http://modula3.elegosoft.com/cgi-bin/cvsweb.cgi/pm3/m3/pm3/language/parsing/m3coco/ (I compiled it with cm3.) There is also the Caltech parser, which I have not used so far.