Julia programming language

https://docs.julialang.org/en/stable/manual/strings/

• Input of Unicode character in single quotes
  • \u followed by up to four hexadecimal digits or
  • \U followed by up to eight hexadecimal digits

Cc: Other, control
Cn: Other, not assigned
In: Invalid, too high
Ll: Letter, lowercase
Lu: Letter, uppercase
Ma: Malformed, bad data
Po: Punctuation, other
Sm: Symbol, math
Zs: Separator, space