[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Scheme-reports] meaning of r7rs standard feature identifier
Per Bothner scripsit:
> What is the intended meaning of the standard feature identifier 'r7rs?
> Does it mean every requirement in the R7RS specification must be
> implemented 100% according to spec? Of course every implementation
> is likely to have bugs, and others may find some parts of the spec
> difficult or impossible to implement (for compatibility or
> technical reasons), so 100% conformance is unlikely.
Indeed. I would say that it signals an intention to conform to R7RS
> Specifically, suppose Kawa implements R7RS as far as we can.
Just so. In that case, providing "r7rs" would be a Good Thing.
I modeled it on the ANSI_C define in C, which conforming
implementations set to 1. Some non-conforming implementations
set it to 0, some didn't define it at all.
> I'd suggest some extra feature names:
> by analogy with full-unicode.
I expect we might have more feature flags in WG2.
By Elbereth and Luthien the Fair, you shall cowan@x
have neither the Ring nor me! --Frodo http://www.ccil.org/~cowan
Scheme-reports mailing list