fix：修复表达方式空构建问题

src/chat/utils/chat_message_builder.py

@@ -441,6 +441,7 @@ async def build_anonymous_messages(messages: List[Dict[str, Any]]) -> str:
     处理 回复<aaa:bbb> 和 @<aaa:bbb> 字段，将bbb映射为匿名占位符。
     """
     if not messages:
+        print("111111111111没有消息，无法构建匿名消息")
         return ""
 
     person_map = {}
@@ -450,7 +451,12 @@ async def build_anonymous_messages(messages: List[Dict[str, Any]]) -> str:
     def get_anon_name(platform, user_id):
         if user_id == global_config.bot.qq_account:
             return "SELF"
-        person_id = person_info_manager.get_person_id(platform, user_id)
+        try:
+            person_id = person_info_manager.get_person_id(platform, user_id)
+        except Exception as e:
+            person_id = None
+        if not person_id:
+            return "?"
         if person_id not in person_map:
             nonlocal current_char
             person_map[person_id] = chr(current_char)
@@ -458,56 +464,74 @@ async def build_anonymous_messages(messages: List[Dict[str, Any]]) -> str:
         return person_map[person_id]
 
     for msg in messages:
-        user_info = msg.get("user_info", {})
-        platform = user_info.get("platform")
-        user_id = user_info.get("user_id")
-        timestamp = msg.get("time")
-        if msg.get("display_message"):
-            content = msg.get("display_message")
-        else:
-            content = msg.get("processed_plain_text", "")
+        try:
+            # user_info = msg.get("user_info", {})
+            platform = msg.get("chat_info_platform")
+            user_id = msg.get("chat_info_user_id")
+            timestamp = msg.get("time")
+            # print(f"msg:{msg}")
+            # print(f"platform:{platform}")
+            # print(f"user_id:{user_id}")
+            # print(f"timestamp:{timestamp}")
+            if msg.get("display_message"):
+                content = msg.get("display_message")
+            else:
+                content = msg.get("processed_plain_text", "")
 
-        if "ᶠ" in content:
-            content = content.replace("ᶠ", "")
-        if "ⁿ" in content:
-            content = content.replace("ⁿ", "")
+            if "ᶠ" in content:
+                content = content.replace("ᶠ", "")
+            if "ⁿ" in content:
+                content = content.replace("ⁿ", "")
 
-        if not all([platform, user_id, timestamp is not None]):
+            # if not all([platform, user_id, timestamp is not None]):
+                # continue
+
+            anon_name = get_anon_name(platform, user_id)
+            # print(f"anon_name:{anon_name}")
+            
+            # 处理 回复<aaa:bbb>
+            reply_pattern = r"回复<([^:<>]+):([^:<>]+)>"
+            match = re.search(reply_pattern, content)
+            if match:
+                # print(f"发现回复match:{match}")
+                bbb = match.group(2)
+                try:
+                    anon_reply = get_anon_name(platform, bbb)
+                except Exception:
+                    anon_reply = "?"
+                content = re.sub(reply_pattern, f"回复 {anon_reply}", content, count=1)
+
+            # 处理 @<aaa:bbb>，无嵌套def
+            at_pattern = r"@<([^:<>]+):([^:<>]+)>"
+            at_matches = list(re.finditer(at_pattern, content))
+            if at_matches:
+                # print(f"发现@match:{at_matches}")
+                new_content = ""
+                last_end = 0
+                for m in at_matches:
+                    new_content += content[last_end:m.start()]
+                    bbb = m.group(2)
+                    try:
+                        anon_at = get_anon_name(platform, bbb)
+                    except Exception:
+                        anon_at = "?"
+                    new_content += f"@{anon_at}"
+                    last_end = m.end()
+                new_content += content[last_end:]
+                content = new_content
+
+            header = f"{anon_name}说 "
+            output_lines.append(header)
+            stripped_line = content.strip()
+            if stripped_line:
+                if stripped_line.endswith("。"):
+                    stripped_line = stripped_line[:-1]
+                output_lines.append(f"{stripped_line}")
+            # print(f"output_lines:{output_lines}")
+            output_lines.append("\n")
+        except Exception:
             continue
 
-        anon_name = get_anon_name(platform, user_id)
-
-        # 处理 回复<aaa:bbb>
-        reply_pattern = r"回复<([^:<>]+):([^:<>]+)>"
-
-        def reply_replacer(match, platform=platform):
-            # aaa = match.group(1)
-            bbb = match.group(2)
-            anon_reply = get_anon_name(platform, bbb)  # noqa
-            return f"回复 {anon_reply}"
-
-        content = re.sub(reply_pattern, reply_replacer, content, count=1)
-
-        # 处理 @<aaa:bbb>
-        at_pattern = r"@<([^:<>]+):([^:<>]+)>"
-
-        def at_replacer(match, platform=platform):
-            # aaa = match.group(1)
-            bbb = match.group(2)
-            anon_at = get_anon_name(platform, bbb)  # noqa
-            return f"@{anon_at}"
-
-        content = re.sub(at_pattern, at_replacer, content)
-
-        header = f"{anon_name}说 "
-        output_lines.append(header)
-        stripped_line = content.strip()
-        if stripped_line:
-            if stripped_line.endswith("。"):
-                stripped_line = stripped_line[:-1]
-            output_lines.append(f"{stripped_line}")
-        output_lines.append("\n")
-
     formatted_string = "".join(output_lines).strip()
     return formatted_string