quote object => object
Arguments and Values:
object---an object; not evaluated.
The quote special operator just returns object.
The consequences are undefined if literal objects (including quoted objects) are destructively modified.
(setq a 1) => 1 (quote (setq a 3)) => (SETQ A 3) a => 1 'a => A ''a => (QUOTE A) '''a => (QUOTE (QUOTE A)) (setq a 43) => 43 (list a (cons a 3)) => (43 (43 . 3)) (list (quote a) (quote (cons a 3))) => (A (CONS A 3)) 1 => 1 '1 => 1 "foo" => "foo" '"foo" => "foo" (car '(a b)) => A '(car '(a b)) => (CAR (QUOTE (A B))) #(car '(a b)) => #(CAR (QUOTE (A B))) '#(car '(a b)) => #(CAR (QUOTE (A B)))
Affected By: None.
Exceptional Situations: None.
Section 3.1 (Evaluation), Section 2.4.3 (Single-Quote), Section 3.2.1 (Compiler Terminology)
The textual notation 'object is equivalent to (quote object); see Section 3.2.1 (Compiler Terminology).
Some objects, called self-evaluating objects, do not require quotation by quote. However, symbols and lists are used to represent parts of programs, and so would not be useable as constant data in a program without quote. Since quote suppresses the evaluation of these objects, they become data rather than program.