ToC | DocOverview | CGDoc | RelNotes | Index | PermutedIndex
| Allegro CL

| ANSI Common Lisp 3 Evaluation and Compilation 3.8 Dictionary Evaluation and Compilation
3.8.7 quote | Special Operator
  Syntax: quote object object Arguments and Values: object - an object; not evaluated. Description: The quote special operator just returns object. The consequences are undefined if literal objects (including quoted objects) are destructively modified. Examples:
       (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)))
See Also: Section 3.1 Evaluation, Section 2.4.3 Single-Quote, Section 3.2.1 Compiler Terminology Notes: 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. Allegro CL Implementation Details: None.

© Franz Inc. 1998-2019 - File last updated 02-07-2019