getOffsetAfter method
Returns the closest offset after offset
at which the input cursor can be
positioned.
Implementation
int? getOffsetAfter(int offset) {
final int? nextCodeUnit = _text!.codeUnitAt(offset);
if (nextCodeUnit == null) {
return null;
}
return isHighSurrogate(nextCodeUnit) ? offset + 2 : offset + 1;
}