Release v0.6.47: allow multi-word auto-correction replacements

src/storage.cpp

@@ -118,9 +118,11 @@ void validateSettings(const Settings &s)
                               L"абвгдеёжзийклмнопрстуфхцчшщъыьэюя"})
             valid |= !from.empty() && !to.empty() && from.size() <= 32 && to.size() <= 32 &&
                      from == lower(from) && to == lower(to) && from != to &&
-                     from.find_first_not_of(alphabet) == from.npos && to.find_first_not_of(alphabet) == to.npos;
+                     from.find_first_not_of(alphabet) == from.npos &&
+                     to.find_first_not_of(std::wstring(alphabet) + L" ") == to.npos &&
+                     to.front() != L' ' && to.back() != L' ' && to.find(L"  ") == to.npos;
         if (!valid)
-            throw std::runtime_error("Replacement pairs must be different lowercase words of 1-32 letters in the same language");
+            throw std::runtime_error("Use a lowercase typo of 1-32 letters and a different correction of 1-32 characters in the same language. Single spaces between correction words are allowed.");
     }
     for (const auto &[language, words] : s.autoWords)
     {