Re: when are macros useful?

On Thu, 4 Jul 2024 22:04:48 -0000 (UTC), B. Pym wrote:

(define-syntax ntimes
  (syntax-rules ()
    [(_ count forms ...)
     (do ((n 0 (+ n 1)))
       ((= n count))
       forms ...)]))

I think it’s a sign of desperation when you hope that using different
kinds of bracketing symbols will somehow make your code clearer. The
screen/page is two-dimensional; why not make use of both dimensions in
laying out your code?

    (define-syntax ntimes
        (syntax-rules ()
            ((_ count forms ...)
                (do ((n 0 (+ n 1)))
                    ((= n count))
                    forms ...
                ) ; do
            )
        ) ; syntax-rules
    ) ; define