How to pass a lambda expression in Elisp

Question

So, I\'m trying to make a generic web search function in Elisp:

(defun look-up-base (url-formatter)
  (let (search url)
    (setq search(thing-at-point \'sym         


        

Answer 1

I think you need to use funcall:

Instead of (url-formatter search) you should have (funcall url-formatter search).

Lisp expects the name of a function as the first element of a list. If instead you have a symbol associated with a lambda expression or function name, you need to use funcall.