25 lines
669 B
Racket
25 lines
669 B
Racket
#lang typed/racket/base
|
|
|
|
;; Statically-checked format strings
|
|
|
|
(provide
|
|
format:
|
|
;; (-> (x#:String) Any *N Void)
|
|
;; Takes 1 required string argument and N additional arguments,
|
|
;; where N is the number of format sequences in the string.
|
|
;;
|
|
;; If the string is a literal, raises a compile-time arity error if
|
|
;; the given number of arguments does not match the format string.
|
|
;;
|
|
;; If the string is not a literal, arity-checking happens at runtime.
|
|
|
|
printf:
|
|
;; (-> (x:String) Any *N Void)
|
|
;; Similar to `format`, but displays the formatted string to `current-output-port`.
|
|
)
|
|
|
|
(require
|
|
(only-in trivial/private/format
|
|
format:
|
|
printf:))
|