According to Hans Ecke:

Well, mathematically spoken, there exist at least one solution. I don`t know where I found it, but I have at home Yacc&Lex for Pascal (with source, AFAI remember), at least for BP. If you can`t find it in the Net, I can send it to you (or better, upload it to GPC-home). It is under some GPL-like licence, allowing to redistribute it.

If you would either point us to where we can find it in the Net or upload it to ftp://agnes.dida.physik.uni-essen.de/incoming/ (and send me an E-Mail after you have done), it would be a good thing. :-)

Dankeschoen im Voraus,

Peter -- Peter Gerwinski, Essen, Germany, free physicist and programmer Maintainer GNU Pascal - http://home.pages.de/~GNU-Pascal/ - 1 Oct 1997 PGP key fingerprint: AC 6C 94 45 BE 28 A4 96 0E CC E9 12 47 25 82 75 Fight the SPAM! - http://maps.vix.com/