Questione giuridica chiave
Whether the public-law appeal was admissible against the revocation of the settlement permit.
Decisione estratta
The appeal was in principle admissible, because the revocation of a permit with continuing legal effects could be challenged before the Federal Tribunal.
Motivazione estratta
The filing was timely and by the addressee of the cantonal judgment, and the case did not fall under the statutory exclusion for decisions without such effects.