Windows: bracketed pasting of 448692 chars done in 2.38s ✊

python · ambv · May 2, 2025 · Mar 18, 2025 · Mar 21, 2025 · Mar 21, 2025
commit 656fea32bc4696f8d741aa818a182e1a07c7f7ab
@@ -488,7 +488,10 @@ def do(self) -> None:
             self.reader.console.wait(100)
             ev = self.reader.console.getpending()
             data += ev.data
-            trace("len(data) = {d}", d=len(data))
-        trace("bracketed pasting done in {s:.2f}s", s=time.time() - start)
+        trace(
+            "bracketed pasting of {l} chars done in {s:.2f}s",
+            l=len(data),
+            s=time.time() - start,
+        )
         self.reader.insert(data.replace(done, ""))
         self.reader.last_refresh_cache.invalidated = True
@@ -426,6 +426,18 @@ def _read_input(self, block: bool = True) -> INPUT_RECORD | None:
 
         return rec
 
+    def _read_input_bulk(self, block: bool, n: int) -> tuple[INPUT_RECORD, int]:
+        rec = (n * INPUT_RECORD)()
+        read = DWORD()
+
+        if not block and not self.wait(timeout=0):
+            return rec, 0
+
+        if not ReadConsoleInput(InHandle, rec, n, read):
+            raise WinError(GetLastError())
+
+        return rec, read.value
+
     def get_event(self, block: bool = True) -> Event | None:
         """Return an Event instance.  Returns None if |block| is false
         and there is no event pending, otherwise waits for the
@@ -528,10 +540,15 @@ def getpending(self) -> Event:
             if e2:
                 e.data += e2.data
 
-        rec = self._read_input(False)
-        if rec and rec.EventType == KEY_EVENT:
-            key_event = rec.Event.KeyEvent
-            e.data += key_event.uChar.UnicodeChar
+        recs, rec_count = self._read_input_bulk(False, 1024)
+        for i in range(rec_count):
+            rec = recs[i]
+            if rec and rec.EventType == KEY_EVENT:
+                key_event = rec.Event.KeyEvent
+                ch = key_event.uChar.UnicodeChar
+                if ch == "\r":
+                    ch += "\n"
+                e.data += ch
         return e
 
     def wait(self, timeout: float | None) -> bool: