| title | Control Codes, Private Use, and Combining Marks |
|---|
| General Category | Stack | Mixed | Memo | |
|---|---|---|---|---|
| [[http://www.fileformat.info/info/unicode/category/Cc/list.htm | Other, Control (Cc)]] | R | R | :?: undefined in stacked mode |
| [[http://www.fileformat.info/info/unicode/category/Cf/list.htm | Other, Format (Cf)]] | R | R | :?: undefined in stacked mode |
| [[http://www.fileformat.info/info/unicode/category/Co/list.htm | Other, Private Use (Co)]] | U | U | Bias for East Asian use, since other usage is unknown |
| [[http://www.fileformat.info/info/unicode/category/Cs/list.htm | Other, Surrogate (Cs)]] | R | R | :?: no need to define? |
| M* | Follows grapheme cluster |