Re: [idn] call for comments for REORDERING

[David Hopwood <david.hopwood@zetnet.co.uk>]

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Soobok Lee wrote:
> "Martin Duerst" <duerst@w3.org> wrote:
> > Soobok Lee wrote:
> > >Current Windows 98,2K,XP and Linux  contain NFKC codes ?
> >
> > No. My personal preference would be for NFC, anyway, because
> > most of the additional mappings in NFKC are not really useful,
> > because they are from characters that are quite difficult
> > to type in. So these characters could just be forbidden rather
> > than mapped. The only exception I know is full-width ASCII,
> > which could either be included in the nameprep mapping step,
> > or could be done as a front-end 'quality of implementation'
> > step (similar to how the ideographic fullstop is currently
> > treated).
> 
> My personal preference is NFKC. Because it solves the mappings between
> the extended han ideographic block and han ideo block.

There are no compatibility mappings between any Han ideographs, either
in Extensions A and B or in the original U+4E00 block. If you're referring
to the CJK Compatibility Ideographs block, those are canonical mappings.

(There are some compatibility mappings from CJK *radicals* to
CJK ideographs. Those will be discussed in my post on NFC vs. NFKC.)

- -- 
David Hopwood <david.hopwood@zetnet.co.uk>

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