CLHS: Function MAKE-DISPATCH-MACRO-CHARACTER

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Function MAKE-DISPATCH-MACRO-CHARACTER

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

Side Effects: None.

The readtable is altered.

Affected By: None.

Exceptional Situations: None.

See Also:

*readtable*, set-dispatch-macro-character

Notes: None.

The following X3J13 cleanup issue, not part of the specification, applies to this section:

- ARGUMENTS-UNDERSPECIFIED:SPECIFY

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