- * The last two checks cover "Noncharacter": defined as:
- * "A code point that is permanently reserved for
- * internal use, and that should never be interchanged. In
- * Unicode 3.1, these consist of the values U+nFFFE and U+nFFFF
- * (where n is from 0 to 10_16) and the values U+FDD0..U+FDEF."
- *