Extended grapheme cluster stability

Martinho Fernandes via Unicode unicode at unicode.org
Tue May 22 05:51:33 CDT 2018


None of the *_Break properties are stable, as far as I can see in
https://www.unicode.org/policies/stability_policy.html. If I understand
correctly, this means that, at least in theory, it is possible that in
Unicode version X a sequence of characters AB forms an extended grapheme
cluster, i.e. A × B in the notation used in the algorithm description
and in the test data, but then in Unicode version X+1, that changes to A
÷ B.

Am I reading this correctly or is this not possible? Or is it possible
in theory but not in practice? Or maybe it has happened before?


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <http://unicode.org/pipermail/unicode/attachments/20180522/cb6d3b7f/attachment.asc>

More information about the Unicode mailing list