Create input_validator.py

input_validation/input_validator.py

@@ -0,0 +1,24 @@
+import re
+
+class InputValidator:
+    def __init__(self):
+        self.patterns = {}
+
+    def add_pattern(self, field, pattern):
+        self.patterns[field] = re.compile(pattern)
+
+    def validate(self, data):
+        for field, pattern in self.patterns.items():
+            if field in data:
+                if not pattern.match(data[field]):
+                    return False
+        return True
+
+# Example usage:
+validator = InputValidator()
+validator.add_pattern("username", r"^[a-zA-Z0-9_]+$")
+validator.add_pattern("email", r"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$")
+
+data = {"username": "invalid_username!", "email": "invalid_email"}
+if not validator.validate(data):
+    print("Invalid input")