use split_iterator

src/inc/til/string.h

@@ -336,6 +336,18 @@ namespace til // Terminal Implementation Library. Also: "Today I Learned"
             return sentinel{};
         }
 
+        typename iterator::value_type next() noexcept
+        {
+            const auto part = value();
+            advance();
+            return part;
+        }
+
+        typename iterator::value_type remaining() noexcept
+        {
+            return { _it, _end };
+        }
+
     private:
         bool valid() const noexcept
         {

src/terminal/adapter/adaptDispatch.cpp

@@ -3863,21 +3863,15 @@ void AdaptDispatch::DoUrxvtAction(const std::wstring_view string)
         return;
     }
 
-    const auto action = til::at(parts, 0);
-
+    til::split_iterator split { string, L';' };
+    const auto action = split.next();
     if (action == L"notify")
     {
-        const auto title = parts.size() >= 2 ? til::at(parts, 1) : std::wstring_view{};
         // The body is everything after "notify;title;". We can't just use
         // parts[2] because the body itself may contain semicolons.
-        std::wstring_view body;
-        if (parts.size() >= 3)
-        {
-            const auto bodyStart = til::at(parts, 2).data();
-            const auto stringEnd = string.data() + string.size();
-            body = { bodyStart, static_cast<size_t>(stringEnd - bodyStart) };
-        }
-        _api.ShowNotification(title, body);
+        const auto title = split.next();
+        const auto body = split.remaining();
+        _api.ShowNotification(title, body); 
     }
     else
     {