20 Nov
2020
20 Nov
'20
3:25 a.m.
Well, I once tried implementing a parser that evaluates integer addition, multiplication, exponential, tetration, pentation, and so on infinitely. The operators were + with precedence 6, * with precedence 7, ^ with precedence 8, ^^ with precedence 9 (for tetration), ^^^ with precedence 10 (for pentation), ^^^^ with precedence 11 (for hexation), and so on infinitely. I've not succeeded implementing it using ordinary ReadP.