Release 10.1A: OpenEdge Development:
Internationalizing Applications

Limitations

Supplementary characters have the following restrictions:

Width — Assume a column width of 2 for each supplementary character. This works for the HKSCS code page, but not for other supplementary characters.
Word breaking — Follow the heuristic rules already in place for UTF-8. Supplementary characters are considered as separate words, like 3-byte UTF-8 characters.
Case rules — No case transformations are applied to supplementary characters. This works for HKSCS, but not for other supplementary characters. (In Unicode 3.1, Deseret characters are the only supplementary characters with case mappings.)