Function isUTF16EncodedRune

escape.go:59–61

isUTF16EncodedRune checks if a rune is in the range for non-BMP characters, which is used to describe UTF16 chars. Source: https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane

(r rune)

// which is used to describe UTF16 chars.
// Source: https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane
func isUTF16EncodedRune(r rune) bool {
	return highSurrogateOffset <= r && r <= basicMultilingualPlaneReservedOffset
}

func decodeUnicodeEscape(in []byte) (rune, int) {
	if r, ok := decodeSingleUnicodeEscape(in); !ok {