I'm not sure what you are trying to show? Code can be in one line? Okaaaaay...
I was trying to show that one can define local variables without adding another list level via let.
Like if one would/could write in Clojure:
(defn sum-and-square [a b &blah sum (+ a b)] (* sum sum))
Another Common Lisp example, we'll stick to your one liner format, using infix syntax via a reader macro:
(defun sum-and-square (a b) #I(sum=a+b,sum*sum))
Before you ask: what am I trying to show? This shows that Common Lisp syntax can be deeply extended by the user and that this is a standard feature of the language. Want a shorter infix notation without s-expressions? Why not...
Reader macros are global and stateful, this is one of the worst things about Common Lisp. Excellent feature, pity we're forever burdened with the implementation.
I was trying to show that one can define local variables without adding another list level via let.
Like if one would/could write in Clojure:
Another Common Lisp example, we'll stick to your one liner format, using infix syntax via a reader macro: Before you ask: what am I trying to show? This shows that Common Lisp syntax can be deeply extended by the user and that this is a standard feature of the language. Want a shorter infix notation without s-expressions? Why not...