feat: implement multicharacter input

tools/new.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+
+from sys import stdin
+import tty
+import termios
+from time import time as now
+from queue import Queue, Empty as queue_empty
+import threading
+
+_SHORT_TIME_SECONDS = 0.01
+
+
+def _fill_queue(queue: Queue[int]):
+    while True:
+        queue.put(ord(stdin.read(1)))
+
+
+def _main() -> None:
+    chars: list[int] = []
+    queue: Queue[int] = Queue()
+
+    threading.Thread(target=_fill_queue, args=(queue,), daemon=True).start()
+
+    char = queue.get()
+    if char != 27:
+        print(f"key: {char}", end="\n\r")
+        return
+    esc = now()
+    chars.append(27)
+    while now() - esc < _SHORT_TIME_SECONDS:
+        try:
+            char = queue.get(timeout=_SHORT_TIME_SECONDS)
+        except queue_empty:
+            break
+        if char not in chars:
+            chars.append(char)
+    print(chars, end="\n\r")
+    chars.clear()
+
+
+if __name__ == "__main__":
+    old_settings = termios.tcgetattr(stdin)
+    try:
+        tty.setraw(stdin.fileno())
+        _main()
+    finally:
+        termios.tcsetattr(stdin, termios.TCSADRAIN, old_settings)
+        print("byeeeee")