Returns the range in the string of the composed character sequences for a given range.
- iOS 2.0+
- macOS 10.5+
- tvOS 9.0+
- watchOS 2.0+
A range in the receiver. The range must not exceed the bounds of the receiver.
The range in the receiver that includes the composed character sequences in
This method provides a convenient way to grow a range to include all composed character sequences it overlaps.