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From: Mark H Weaver <mhw@netris.org>
Newsgroups: gmane.lisp.guile.user
Subject: Re: Unicode numeric value
Date: Mon, 17 Dec 2018 13:52:20 -0500
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Mark H Weaver <mhw@netris.org> writes:

> If the range of relevant code points is small enough, another approach
> would be to use a vector:
>
>   (define private-code-point-start #xE000)
>   (define private-code-point-end   #xF900)
>
>   (define (code-point-in-range? cp)
>     (<= private-code-point-start
>         cp
>         private-code-point-end))

Sorry, the definition above is incorrect.  It should be:

   (define (code-point-in-range? cp)
     (<= private-code-point-start
         cp
         (- private-code-point-end 1)))

     Mark