|Characters from 0x00 to 0x1f |`\\u####` where #### is four hex digits |Always |
|Characters from 0x80 to 0xffff|`\\u####` where #### is four hex digits |If `rawunicode` suffix is not present (default) |
|Characters from 0x80 to 0xffff|Unchanged |If `rawunicode` suffix is present <<.from-version "5.1.23">> |
<<.from-version "5.1.23">> If the suffix `rawunicode` is present, Unicode characters above 0x80 (such as ß, ä, ñ or 🎄) will be passed through unchanged. Without the suffix, they will be substituted with `\\u` codes, which was the default behavior before 5.1.23.
<<.note """Technical note: Characters outside the Basic Multilingual Plane, such as 🎄 and other emojis, will be encoded as a UTF-16 surrogate pair, i.e. with two `\u` sequences.""">>