[r6rs-discuss] R5.95 questions

From: William D Clinger <will>
Date: Wed, 27 Jun 2007 04:56:46 -0400

Mike Sperber wrote:
> So, here's a question for the native speakers: I want to write something
> like
>
> "Implementations must check these restrictions only to the extent that
> ..."
>
> Meaning that a minimal requirement follows, but implementations are free
> to do more checking. Does the sentence say what I mean, or does it say
> that they must not check more than what follows?

The latter.

> If the latter, how do I say what I want to say using "must"?

As Tom Lord said, the "only" does no good and much harm.
You want to say something like

    To the extent that ..., implementations must check
    these restrictions. Implementations may/should
    do more checking [where the allowed but not required
    checking should be described].

Will
Received on Wed Jun 27 2007 - 04:56:46 UTC