FWIW, I learned the vi cursor keystrokes playing rogue in 1982. I also learned C studying the source, while staring at lines like while (j++=i++); which wa

FWIW, I learned the vi cursor keystrokes playing rogue in 1982. I also learned C studying the source, while staring at lines like while (j++=i++); which was a pretty strange construct to a Pascal programmer.