Evaluation in Emacs

• Look up first element. If first element is function, function call. If symbol, look up function cell of symbol and use as function call.
• Evaluate rest of arguments, left to right.
• if it’s a macro form, arguments not evaluated.
• backquote disables evaluating a form, and lets you selectively evaluate parts: `(a list of ,(+ 2 3) elements)
• backquote also lets you splice elements: (let ((some-list '(2 3))) `(1 ,@some-list 4 5))