| | UTR#17: Character Encoding Model |
 | | ISO 2022-based charsets (ISO-2022-JP, ISO-2022-KR, etc.), which use embedded escape sequences; these are compound CESs. |
 | | This mechanism includes bytes (for example single shifts, SI/SO, or escape sequences) that are not part of any of the simple CESs, but which are defined by the character encoding architecture and which may require an external registry of particular values (such as for the ISO 2022 escape sequences). |
 | | ISO / IEC TR 19769 extends the model used in ISO C and C++ by recommending the use of two typedefs and a minimal extension to the support for character literals and runtime library. |
| www.unicode.org /unicode/reports/tr17 (4231 words) |