Re: Encoding of etc/HELLO

[Paul Eggert]

Clément Pit-Claudel wrote:

> Aren't variation selectors used for a similar purpose, though?
They can be used for that, yes, though it's safe to say this would be 
bleeding-edge stuff. As I understand it, Adobe and others use them so that one 
can round-trip from Adobe formats into UTF-8 and back without losing information 
about ideograph variants. However, in practice variation selectors tend to be 
proprietary, so they're a bit of a minefield.

As far as etc/HELLO goes, a couple of years ago Ken Lunde proposed the PanCJKV 
ideographic variation database collection for east-Asia variaton; see:

https://github.com/adobe-type-tools/pancjkv-ivd-collection

It ran into some roadblocks, though, briefly described here:

http://www.unicodeconference.org/presentations/S8T2-Lunde.pdf