make-dispatch-macro-character (original) (raw)

ANSI Common Lisp 23 Reader 23.2 Dictionary of Reader

Syntax:

make-dispatch-macro-character char &optional non-terminating-p readtable t

Arguments and Values:

char - a character.

non-terminating-p - a generalized boolean. The default is false.

readtable - a readtable. The default is the current readtable.

Description:

make-dispatch-macro-character makes _char_be a dispatching macro character in readtable.

Initially, every character in the dispatch table associated with the char has an associated function that signals an error of type reader-error.

If non-terminating-p is true, the _dispatching macro character_is made a non-terminating macro character; if non-terminating-p is false, the _dispatching macro character_is made a terminating macro character.

Examples:

(get-macro-character #{) NIL, false (make-dispatch-macro-character #{) T (not (get-macro-character #{)) false

The readtable is altered.

See Also:

*readtable*, set-dispatch-macro-character

Allegro CL Implementation Details:

None.