update lyric preprocess

app.py

@@ -65,13 +65,15 @@ def generate_song(lyric, description=None, prompt_audio=None, genre=None, cfg_co
     sample_rate = MODEL.cfg.sample_rate
     
     # 适配lyric格式
-    lyric = re.sub(r"[，。！？,!?:]", "", lyric)
+    lyric = re.sub(r"[^\w\s\[\]\u4e00-\u9fff\u3040-\u309f\u30a0-\u30ff\uac00-\ud7af\u00c0-\u017f]", "", lyric)
+    lyric = lyric.lower()
     lyric = lyric.replace("[intro]", "[intro-short]").replace("[inst]", "[inst-short]").replace("[outro]", "[outro-short]")
     lyric = lyric.replace("\n\n", " ; ")
     for s in STRUCTS:
         lyric = lyric.replace(f"{s}\n", f"{s} ")
     lyric = lyric.replace("\n", ".")
     lyric = lyric.replace(". ; ", " ; ")
+    lyric = lyric.replace("].", "] ").replace("..", " ")
     
     # 适配prompt 
     if prompt_audio is not None: