I used it in CS grad school in the early 70's. I have both books on it, including "The Macro Implementation of SNOBOL4." I used it to write a go-moku (5-in-a-r

I used it in CS grad school in the early 70's. I have both books on it, including "The Macro Implementation of SNOBOL4." I used it to write a go-moku (5-in-a-row) playing program in an AI course and got an A when it beat the professor.