While I was working on the problem in post http://daemonforums.org/showthread.p...2347#post22347
I was reminded of an early experience in programming.
We used mostly Fortran as a higher-level language, but there was a vital Algol compiler available. Most production uses of it were for the excellent plotter library -- the plotting device was a Calcomp ink drum plotter.
As part of our education, we were assigned a task to be solved in Algol. Lots of jobs went through that had scores of lines of code. The most common diagnostic appeared at the bottom of the paper listing of the program:
Syntax error in above program.
Many a hair was torn out and left on the key-punch room floor because of that
... cheers, drl