;; - a 2 dimensional precedence table (key word "prec2"), is a 2D
;; table recording the precedence relation (can be `<', `=', `>', or
;; nil) between each pair of tokens.
-;; - a precedence-level table (key word "grammar"), which is a alist
+;; - a precedence-level table (key word "grammar"), which is an alist
;; giving for each token its left and right precedence level (a
;; number or nil). This is used in `smie-grammar'.
;; The prec2 tables are only intermediate data structures: the source