Prof. Harley Flanders wrote:
One can handle nested for loops with REPEAT and WHILE loops, without going into FOR loop contortions: [...]
Indeed, and that's what should be done (or using recursion, as one prefers).
I suppose (really hope! :-) that Frank D. Engel's example was meant as a proof of concept only, and not to be seriously used. (I think it would currently work with GPC, but relies heavily on undocumented implementation specifics.)
Frank