Update app.py

app.py

@@ -33,13 +33,16 @@ def chat(
         top_p=top_p)
 
     # remove the first phrase identical to user prompt
-    bot_response = bot_response[0][len(user_input):]
+    if include_input:
+        bot_response = bot_response[0][len(user_input):]
     bot_response = bot_response.replace("\n", "<br>")
+    
     # trip the last phrase
-    try:
-        bot_response = bot_response[:bot_response.rfind(".")]
-    except:
-        pass
+    if truncate:
+        try:
+            bot_response = bot_response[:bot_response.rfind(".")+1]
+        except:
+            pass
 
     history.append({
         "role": "user",