Update app.py

app.py

@@ -63,7 +63,121 @@ def extract_expiry_dates(text):
         r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{4})',       # 20 MAY 2024
         r'([A-Za-z]{3,}\s*\d{1,2}[,\s]*\d{4})',    # July 20, 2024
         r'(\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2})',       # 2024/07/20 or 2024-07-20
-        r'([A-Za-z]{3}[\-]\d{1,2}[\-]\d{4})'       # JAN-15-2024
+        r'([A-Za-z]{3}[\-]\d{1,2}[\-]\d{4})',
+        r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Expiry Date: 20/07/2O24
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-]\d{4}))',  # Expiry Date: 20/07/2024
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Expiry Date: 20/07/2O24
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Expiry Date: 20 MAY 2O24
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*\d{4}))',  # Expiry Date: 20 MAY 2024
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Expiry Date: 20 MAY 2O24
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Expiry Date: 2024/07/2O24
+    r'(?:exp(?:iry)?\.?\s*date\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-]\d{2}))',  # Expiry Date: 2024/07/20
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{4}))',  # Best Before: 2025
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Best Before: 20/07/2O24
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-]\d{4}))',  # Best Before: 20/07/2024
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Best Before: 20/07/2O24
+    r'(?:best\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Best Before: 20 MAY 2O24
+    r'(?:best\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*\d{4}))',  # Best Before: 20 MAY 2024
+    r'(?:best\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Best Before: 20 MAY 2O24
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Best Before: 2024/07/2O24
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-]\d{2}))',  # Best Before: 2024/07/20
+    r'(?:best\s*before\s*[:\-]?\s*.*?(\d{1,2}\d{2}\d{2}))', 
+    r'(?:best\s*before\s*[:\-]?\s*(\d{6}))',
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{1,2}[A-Za-z]{3,}[0O]\d{2}))',  # Consume Before: 3ODEC2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{1,2}[A-Za-z]{3,}\d{2}))',  # Consume Before: 30DEC23
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Consume Before: 20/07/2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-]\d{4}))',  # Consume Before: 20/07/2024
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Consume Before: 20/07/2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Consume Before: 20 MAY 2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*\d{4}))',  # Consume Before: 20 MAY 2024
+    r'(?:consume\s*before\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Consume Before: 20 MAY 2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Consume Before: 2024/07/2O24
+    r'(?:consume\s*before\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-]\d{2}))',  # Consume Before: 2024/07/20
+    r'(?:exp\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Exp: 20/07/2O24
+    r'(?:exp\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-]\d{4}))',  # Exp: 20/07/2024
+    r'(?:exp\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Exp: 20/07/2O24
+    r'(?:exp\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Exp: 20 MAY 2O24
+    r'(?:exp\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*\d{4}))',  # Exp: 20 MAY 2024
+    r'(?:exp\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Exp: 20 MAY 2O24
+    r'(?:exp\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Exp: 2024/07/2O24
+    r'(?:exp\s*[:\-]?\s*.*?(\d{4}[\/\-]\d{2}[\/\-]\d{2}))',  # Exp: 2024/07/20
+    r'Exp\.Date\s+(\d{2}[A-Z]{3}\d{4})',
+    r'(?:exp\s*\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Exp. Date: 16 MAR 2O30 (with typo)
+    r'(?:exp\s*\.?\s*date\s*[:\-]?\s*.*?(\d{2}[\/\-]\d{2}[\/\-][0O]\d{2}))',  # Exp. Date: 15/12/2O30 (with typo)
+    r'(?:exp\s*\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Exp. Date: 15 MAR 2O30 (with typo)
+    r'(?:exp\s*\.?\s*date\s*[:\-]?\s*.?(\d{2}\s[A-Za-z]{3,}\s*[0O]\d{2}))',  # Exp. Date cdsyubfuyef 15 MAR 2O30 (with typo)
+    r'(\d{2}[\/\-]\d{2}[\/\-]\d{4})',  # 20/07/2024
+    r'(\d{2}[\/\-]\d{2}[\/\-]\d{2})',  # 20/07/24
+    r'(\d{2}\s*[A-Za-z]{3,}\s*\d{4})',  # 20 MAY 2024
+    r'(\d{2}\s*[A-Za-z]{3,}\s*\d{2})',  # 20 MAY 24
+    r'(\d{4}[\/\-]\d{2}[\/\-]\d{2})',  # 2024/07/20
+    r'(\d{4}[\/\-]\d{2}[\/\-]\d{2})',  # 2024-07-20
+    r'(\d{4}[A-Za-z]{3,}\d{2})',  # 2024MAY20
+    r'(\d{2}[A-Za-z]{3,}\d{4})',  # 20MAY2024
+    r'(?:exp\.?\s*date\s*[:\-]?\s*(\d{2}\s*[A-Za-z]{3,}\s*(\d{4}|\d{2})))',
+    r'(?:exp\.?\s*date\s*[:\-]?\s*(\d{2}\s*\d{2}\s*\d{4}))',  # Exp. Date: 20 05 2025
+    r'(\d{4}[A-Za-z]{3}\d{2})',  # 2025MAY11
+    r'(?:best\s*before\s*[:\-]?\s*(\d+)\s*(days?|months?|years?))',  # Best Before: 6 months
+    r'(?:best\s*before\s*[:\-]?\s*(three)\s*(months?))',
+    r'(\b(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\b\s*\d{4})',
+    r'\bUSE BY\s+(\d{1,2}[A-Za-z]{3}\d{4})\b',
+    r'Exp\.Date\s*(\d{2}[A-Z]{3}\d{4})',
+    r'EXP:\d{4}/\d{2}/\d{4}/\d{1}/[A-Z]',     # JAN-15-2024
+    r'USE BY[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Use by date
+        r'BEST BEFORE[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Best before date
+        r'EXPIRY DATE[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expiry Date
+        r'EXPIRY[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expiry
+        r'EXP[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Exp
+        r'VALID UNTIL[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Valid Until
+        r'CONSUME BY[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Consume By
+        r'EXPIRES ON[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expires On
+        # DDMMMYYYY format
+        r'(\d{1,2}[A-Za-z]{3}\d{4})',  # DDMMMYYYY format
+        # Short year formats
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2})',  # Short year date format (DD/MM/YY)
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # General date format (DD/MM/YYYY)
+        # Year-month-day formats
+        r'(\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2})',  # Year-month-day format (YYYY/MM/DD)
+        # Month/Year formats
+        r'(\d{1,2}[\/\-]\d{1,2})',  # MM/DD format
+        r'(\d{1,2}[\/\-]\d{2})',  # MM/YY format
+        # Month name formats
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{4})',  # Month name with day and year
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{2})',  # Month name with day and short year
+        # Year with month name
+        r'(\d{4}[A-Za-z]{3,}\d{1,2})',  # Year with month name
+        r'(\d{1,2}[A-Za-z]{3,}\d{4})',  # Day with month name and full year
+        # Additional formats
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2})',  # MM/DD/YY format
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # MM/DD/YYYY format
+        r'(\d{1,2}[\/\-]\d{1,2})',  # MM/DD format
+        r'(\d{1,2}[\/\-]\d{2})',  # MM/YY format
+        # Best before phrases
+        r'Best before (\d+) months',  # Best before in months
+        r'Expiration Date[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expiration Date
+        r'Expires[:\-]?\s*(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expires
+        # Additional variations
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{4})',  # Month name with day and year
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{2})',  # Month name with day and short year
+        # More variations
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # MM/DD/YYYY format
+        r'(\d{1,2}[\/\-]\d{1,2})',  # MM/DD format
+        r'(\d{1,2}[\/\-]\d{2})',  # MM/YY format
+        # Additional expiry phrases
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expiry in various formats
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2})',  # Expiry in short year formats
+        r'(\d{1,2}[\/\-]\d{1,2})',  # Expiry in MM/DD format
+        r'(\d{1,2}[\/\-]\d{2})',  # Expiry in MM/YY format
+        # Additional phrases
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{4})',  # Month name with day and year
+        r'(\d{1,2}\s*[A-Za-z]{3,}\s*\d{2})',  # Month name with day and short year
+        r'(\d{4}[A-Za-z]{3,}\d{1,2})',  # Year with month name
+        r'(\d{1,2}[A-Za-z]{3,}\d{4})',  # Day with month name and full year
+        # Additional expiry phrases
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{4})',  # Expiry in various formats
+        r'(\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2})',  # Expiry in short year formats
+        r'(\d{1,2}[\/\-]\d{1,2})',  # Expiry in MM/DD format
+        r'(\d{1,2}[\/\-]\d{2})',  # Expiry in MM/YY format
     ]
     dates = []
     for pattern in patterns: