[perl #37372] [TODO] unicode charset classification

[via RT]

# New Ticket Created by  Leopold Toetsch 
# Please include the string:  [perl #37372]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/rt3/Ticket/Display.html?id=37372 >


charset/unicode.c needs implementation of is_ccass / find_cclass, / 
find_not_cclass.

1) see charset/ascii.c for the basics

2) if not PARROT_HAS_ICU
      if codepoint >= 128
        throw exception
      else
        use ascii table lookup

    else
      call appropriate ICU function
      # see also and remove from src/string_primitives.c

3) ... 9) write tests
10) receive grand Parrot unicode award

Thanks,
leo