[R6RS] Unicode SRFI - responses needed
Tue Jul 19 12:31:03 EDT 2005
Thanks for the exceptional job summarizing the discussion!
On a general note, some people have noted the desire to make very
small implementations of Scheme (on embedded systems, say) and still
be standards-compliant. I support that in the sense that these
implementations should be able to say what subset of the standard they
support in the terminology provided by R6RS---possibly just by saying
"we implement the libraries such and such" given a suitable
partitioning of what's in R6RS into libraries.
Concretely, this means that I think subsets should be supported, and
that the -ci procedures and string case mapping should live in a
On everything else, I agree with you.
Matthew Flatt <mflatt at cs.utah.edu> writes:
> * Does anyone doubt that we really want to pin down the definition of
> character as "Unicode scalar value"? (I still don't.)
> * Does anyone want to argue that supporting a subset of Unicode might
> count as standard-compliant? (I think that it's not necessary to
> allow this in the standard.)
Yes. This would a) enable (well, not disable at least) very small
implementations, and b) allow implementations to provide a high degree
of interoperability with, say, a Java environment. (I don't know
about the CLR, but I suspect the same is the case there.)
We may not want to allow arbitrary subsets, but could just specify
what happens on a Latin-1-only or a UCS-2-only subset.
> * Is anyone unhappy with slightly more complex string operations that
> take into account non-1-to-1 conversions? (I think I'm happy with
> this, and I'll implement it today to be sure.)
I'm not unhappy---I was meaning to implement this stuff as well this
week. Any work we can share?
> * Who wants to keep character-based comparison and conversion
> operations? (I do.)
I do, too.
> * How many editors want to keep here strings? How many would prefer to
> see them go? (I'm now inclined to get rid of them.)
I'm neutral personally, but vote for getting rid of them to simplify
the standard and the discussion.
Cheers =8-} Mike
Friede, V?lkerverst?ndigung und ?berhaupt blabla
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