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Wow. Well, at one time, maybe Lisp did not have that? It certainly did by the time this book was written though.
by fusiongyro 9y ago
Wow. Well, at one time, maybe Lisp did not have that? It certainly did by the time this book was written though.
- kazinator 9y ago"Lisp" still hasn't; it is a family which comprises various dialects, many of which have lexical scoping, but some of which don't, like Emacs Lisp (which only had dynamic binding until recently and now supports lexical scoping, but not by default).
- fusiongyro 9y agoMy comment was directed at the quote about higher-order functions, which is a more legitimately surprising thing than something about scope. And of course we're talking about whatever would have been considered "Lisp" by Appel in 1992, even though you and I might know better and be more precise today.