• quote object → object

• object - an object; not evaluated.

The special operator quote just returns object.

The consequences are undefined if literal objects (including quoted objects) are destructively modified.

(defparameter *a* 1) 

→

*A*



(quote (defparameter a 3)) 

→

(DEFPARAMETER A 3)



*a* 

→

1



'*a* 

→

A



*a* <r>(QUOTE *A*)</r>
'*a* 

→

(QUOTE (QUOTE *A*))



(defparameter 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)))

None.

None.

{\secref\Evaluation}, {\secref\QuoteMacro},

{\secref\ConstantModification}

The textual notation 'object is equivalent to (quote object); see section {\secref\ConstantModification}.

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.

\issue{CONSTANT-MODIFICATION:DISALLOW}