Thomas Munro wrote:
> Looking around a bit, it might be interesting to check if the
> icu_character_boundaries() function in Daniel Vérité's icu_ext treats
> IVSs as single grapheme clusters.
It does.
with strings(s) as (
values (U&'\+0066FE' || U&'\+0E0103'),
(U&'\+00304B' || U&'\+00309A')
)
select s,
octet_length(s),
char_length(s),
(select count(*) from icu_character_boundaries(s,'en')) as graphemes
from strings;
s | octet_length | char_length | graphemes
-----+--------------+-------------+-----------
曾󠄃 | 7 | 2 | 1
か゚ | 6 | 2 | 1
Best regards,
--
Daniel Vérité
https://postgresql.verite.pro/
Twitter: @DanielVerite
