fix: segmented reply regex error handling (#3771)

* fix: segmented reply regex error handling

closes: #3761

* fix: improve regex handling for segmented replies to support multiline input

* fix: update regex handling in ResultDecorateStage to use findall for segmented replies

* fix: update error logging message for segmented reply regex handling

Author: Soulter

astrbot/core/pipeline/result_decorate/stage.py

@@ -161,11 +161,21 @@ async def process(
                                 # 不分段回复
                                 new_chain.append(comp)
                                 continue
-                            split_response = re.findall(
-                                self.regex,
-                                comp.text,
-                                re.DOTALL | re.MULTILINE,
-                            )
+                            try:
+                                split_response = re.findall(
+                                    self.regex,
+                                    comp.text,
+                                    re.DOTALL | re.MULTILINE,
+                                )
+                            except re.error:
+                                logger.error(
+                                    f"分段回复正则表达式错误，使用默认分段方式: {traceback.format_exc()}",
+                                )
+                                split_response = re.findall(
+                                    r".*?[。？！~…]+|.+$",
+                                    comp.text,
+                                    re.DOTALL | re.MULTILINE,
+                                )
                             if not split_response:
                                 new_chain.append(comp)
                                 continue