Re: [idn] new I-D: Safely Encoding of likeness information into ACE label version 0.2

[Eric Brunner-Williams in Portland Maine]

Soobok,

Your example of U+30AB and U+529B is clear, but as you mention, most
Han/Hangeul do not have look-alike characters.

Consider a hypothetical proposal to place distinct abstract character
repertoires in disjoint blocks in some equally hypothetical standard
coded character set, and assume that some character(s) have "look-alike"
correspondences in multiple disjoint blocks.

In particular, assume that in blocks i, j, and k, there exists code-points
for the characters A(i), A(j), and A(k), and that A(i) "looks-like" A(j)
and A(j) "looks-like" A(k).

Further assume that for this property of "similarity" or "borrowing" (at
least of the visual form) in each of these blocks is unlike the case in
Han/Hangeul (sparce), and most do have look-alike characters (dense). Is
there some point at which the "non-rarity" of "look-alike" would make a
scheme such as the one you've proposed cumbersome? If so, this could be
a constraint upon future modifications of a particular CCS.

Thanks for taking the time to think about this, I know it isn't what you
had in mind when taking on the Latin/Greek and Han/Hangeul similarities.

Eric