Update app.py

app.py

@@ -3,10 +3,20 @@ import requests
 import json
 import os
 import re
+import emoji
 from urllib.parse import unquote
+def filter_text_and_preserve_emojis(text):
+    # Function to identify if a character is an emoji
+    def is_emoji(s):
+        return s in emoji.UNICODE_EMOJI_ENGLISH
+
+    # Replace characters not matching our allowed set or emojis with an empty string
+    filtered_text = ''.join(c if re.match(r'[a-zA-Z0-9\s.,?!\'"]', c) or is_emoji(c) else '' for c in text)
+    
+    return filtered_text
 def filter_non_alphanumeric(text):
     # Use regular expressions to filter out non-alphanumeric characters
-    alphanumeric_text = re.sub(r'[^a-zA-Z0-9\s.,?!\'"]', '', text)
+    alphanumeric_text = filter_text_and_preserve_emojis(text)
     return alphanumeric_text
 
 def send_to_corrade(filtered_response):