Arnold -- sounds fun. Thank you!!! I'll add it to my growing pile of things I want to play with at some point. I too had a wonderful childhood experience with the SW tools. Somebody had a number of them running on a VMS box when all we had was the VMS Fortran compiler, no C yet.

I am curious why did you decide to use byacc? I would have thought in a desire to modernize and make it more available on a modern system -- was there something in byacc that could not be done easily in bison? To be honest, I had thought Robert Corbett did them both and bison was the successor to byacc, but I'm not a compiler guy - so I'm suspecting that there must be a difference/reason. As I said, this is purely curiosity -- an educational opportunity.

Thanks again,

Clem

On Wed, Dec 1, 2021 at 3:41 PM Arnold Robbins <arnold@skeeve.com> wrote:

Hi All.

Mainly for fun (sic), I decided to revive the Ratfor (Rational
Fortran) preprocessor. Please see:

https://github.com/arnoldrobbins/ratfor

I started with the V6 code, then added the V7, V8 and V10 versions
on top of it. Each one has its own branch so that you can look
at the original code, if you wish. The man page and the paper from
the V7 manual are also included.

Starting with the Tenth Edition version, I set about to modernize
the code and get it to compile and run on a modern-day system.
(ANSI style declarations and function headers, modern include files,
use of getopt, and most importantly, correct use of Yacc yyval and
yylval variables.)

You will need Berkely Yacc installed as byacc in order to build it.

I have only touch-tested it, but so far it seems OK. 'make' runs in like 2
seconds, really quick. On my Ubuntu Linux systems, it compiles with
no warnings.

I hope to eventually add a test suite also, if I can steal some time.

Before anyone asks, no, I don't think anybody today has any real use
for it. This was simply "for fun", and because Ratfor has a soft
spot in my heart. "Software Tools" was, for me, the most influential
programming book that I ever read. I don't think there's a better
book to convey the "zen" of Unix.

Thanks,

Arnold