type golang.org/x/text/runes.mapper

5 uses

	golang.org/x/text/runes (current package)
		runes.go#L181: 	return Transformer{mapper(mapping)}
		runes.go#L184: type mapper func(rune) rune
		runes.go#L186: func (mapper) Reset() {}
		runes.go#L189: func (t mapper) Span(src []byte, atEOF bool) (n int, err error) {
		runes.go#L211: func (t mapper) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {