add repeat command

src/plugins/ask/parse_question.py

@@ -58,10 +58,17 @@ class Command:
             return ''
         return random.choice(words)
 
+    @staticmethod
+    def repeat(m: re.Match) -> str:
+        key = m.group(1)
+        count = int(m.group(2))
+        return key * count
+
 
 commands: dict[re.Pattern, Callable[[re.Match], str]] = {
     re.compile(r'rand (\d+) (\d+)'): Command.rand,
-    re.compile(r'choice (.*)'): Command.choice
+    re.compile(r'choice (.*)'): Command.choice,
+    re.compile(r'repeat (.*?) (\d+)'): Command.repeat,
 }