new preprocessing function added

app.py

@@ -30,6 +30,21 @@
 # gr.Interface(fn=predict, inputs="text", outputs="text", title="Mindscape").launch()
 import gradio as gr
 from transformers import pipeline
+import re
+def clean_text(text):
+    # Remove mentions (@username)
+    text = re.sub(r'@\w+', '', text)
+    
+    # Remove URLs
+    text = re.sub(r'http\S+|www\S+', '', text)
+    
+    
+    # Remove special characters, numbers, and extra spaces
+    text = re.sub(r'[^a-zA-Z\s]', '', text)  # Keep only letters and spaces
+    text = re.sub(r'\s+', ' ', text).strip()  # Remove extra spaces
+
+    return text
+
 
 # Define the mapping from label to human-readable status
 label_mapping = {