To be fair, I also see this behaviour in j901,j807 and j805, but I first
noticed it in j902 (probably because it is incredibly obscure!)
s:<(9 u: 128512 128512) NB. expected behaviour
`😀😀
s:<(9 u: 55357 56832 55357 56832) NB. expected behaviour
`😀😀
s:<(9 u: 128512 55357 56832) NB. does not like mixing surrogate pairs
with code point
`😀������
s:<(9 u: 55357 56832 128512) NB. likes the reversal even less
`=
s:<(9 u: 55357 56832 3101) NB. lower code points do not create a
problem when mixed with surrogate pairs
`😀ఝ
s:<(9 u: 3101 55357 56832) NB. in either order
`ఝ😀
Also noticed that even when forced to unicode4, 5 s: returns a boxed unicode
value instead of unicode4 when using surrogate pairs
5 s: s:< 9 u: 128512
┌──┐
│😀│
└──┘
datatype > 5 s: s:< 9 u: 128512
unicode4
5 s: s:< 9 u: 55357 56832
┌──┐
│😀│
└──┘
datatype > 5 s: s:< 9 u: 55357 56832
unicode
JVERSION
Engine: j902/j64avx2/darwin
Beta-n: commercial/2020-11-21T11:37:53
Library: 9.02.08
Qt IDE: 1.8.7/5.12.7(5.12.7)
Platform: Darwin 64
Installer: J902 install
InstallPath: /users/bobtherriault/j902
Contact: www.jsoftware.com
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