Utility methods related to Unicode.


Replaces 32-bit Unicode characters with surrogate pairs.

Returns a version of the string argument with all Unicode characters above 0xFFFF (those from the Supplementary Plane) replaced with the appropriate surrogate pairs. If there are no such characters, returns the same string instance.

See go/wiki/UTF-16#U.2B10000_to_U.2B10FFFF.

  • s – a string, possibly of unicode type, to be converted

  • necessary. (if) –


Unicode string with surrogate pairs, or the argument unmodified.

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