[Chicken-users] Re: Using Format

[Tobia Conforto]

William Ramsay wrote:
> Is there an easy way to format a number with a possible leading zero
> using format or sprintf?
>
> In other words I want 9 to show us as 09 and 10 to show as is.

Of course, there's also the poor man's string padding, using srfi-13:

(define (number-pad num len)
  (let ((str (number->string num)))
    (if (>= (string-length str) len)
        str
        (string-pad str len #\0))))


Tobia