Mathworks does not provide a facility for that.
Perhaps someone has written code for that; I believe it should be possible, but I do not at the moment recall seeing code for that posted.
It can be a bit tricky to figure out whether you are inside a quoted string at any point (because if you are, you cannot wrap without it being a nuisance of string concatenation), but I seem to remember not long ago Jan indicated he had code for that.
