yeah and then is 田中 one or two things? It all depend on the domain. To me 'é' and 'ê' mean different thing that are both outside the make domain. In French you also have half white space (diacritic that latex can handle) for terminal '?!..' Those are simply outside make domain .. so bothering about space encoding as: ' ', '+', "%20" or '_' seem futile.

It all depend of domain convention. Make align on variable naming convention .. that is all