Section Header
    + name := CHARACTER_REF;
    - comment :=" .";
Section Inherit
    - parent_hashable:HASHABLE <-
    - parent_comparable:COMPARABLE <-
Section Public
    - item:CHARACTER;
    - set_item value:CHARACTER <-
    - '<' other:SELF : BOOLEAN <-
    - code:INTEGER <-
        ASCII code of Current
    - to_upper:SELF <-
    - to_lower:SELF <-
        Conversion of Current to lower case
Object Printing:
    - out_in_tagged_out_memory <-
    - fill_tagged_out_memory <-
Hashing:
    - hash_code:INTEGER <-