CESU-8
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+ | |charsetaliases=csCESU8, csCESU-8 | ||
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'''CESU-8''' is an inefficient [[Unicode]] [[Character Encodings|character encoding]] related to [[UTF-8]]. It is not an accepted standard, but has been documented in the interest of practicality. | '''CESU-8''' is an inefficient [[Unicode]] [[Character Encodings|character encoding]] related to [[UTF-8]]. It is not an accepted standard, but has been documented in the interest of practicality. |
Revision as of 15:37, 19 May 2019
CESU-8 is an inefficient Unicode character encoding related to UTF-8. It is not an accepted standard, but has been documented in the interest of practicality.
It's what you get if you take UTF-16 data, reinterpret it as UCS-2, then convert it to UTF-8 (while ignoring any rules forbidding the use of code points in the range U+D800 to U+DFFF). A code point thus uses 1, 2, 3, or 6 bytes.
It is sometimes used by accident, but may be used deliberately to accommodate systems that don't support 4-byte UTF-8 sequences, or when a close correspondence between UTF-16 and a UTF-8-like encoding is deemed necessary.