Was ALGOL ever used for "mainstream" programming? [closed]

Question

I know that ALGOL language is super-uber-extremely important as a theoretical language, and it also had a variety of implementations as per Wikipedia.

However, what's unclear is, was ALGOL (pure ALGOL, not any of its derivatives like Simula) ever actually used for any "real" programming in any way?

By "real", I mean used for several good-sized projects other than programming language/CS research, or by a significant number of developers (say, > 1000).

Personally, the only ALGOL programming I have ever done was on paper, thus the curiosity.

Answer 1

Like Tom, I program in ALGOL almost daily - and I'm also on a Unisys Clearpath. ALGOL has been the primary source of my mortgage repayments for more years than I care to remember.

Answer 2

Nothing like responding to 2 year old threads. I program in ALGOL almost daily. I am a programmer on a Unisys ClearPath mainframe and the majority of the system code is written in ALGOL or variants. The Burroughs B5500 was really designed around the language so it is a pretty efficient language/compilation process. Granted, this version is ALGOL with some extensions like limited classes (structure blocks), etc.

i := 80;
while i > 0 do
   begin
   scan ptrRay:ptrRay for i:i until in ALPHA;
   scan ptrEnd:ptrRay for i:i while in ALPHA;
   if i > 0 then
      begin
      replace nextToken by ptrRay for (offset(ptrEnd) - offset(ptrRay)); 
      end;
   end;

That code scans for ALPHA only tokens. It uses the OFFSET function which is a little more costly than using the residual count math yourself (i, starti, etc);