Oh man ROTFL!
So, a while back I found an actual FOCAL program on the net and downloaded it, lunarlander.foc. I'm pretty sure I mentioned it here but I can't find my post.😞
Anyway it doesn't run in my version of the Conway/ Kida FOCAL interpreter and I just realized why.
Because this is ALL UPPERCASE source and this FOCAL only knows function names in lower case!
And I never noticed!
This FOCAL does accept uppercase keywords, but not functions.