From 402b3517eb09be188df13e5c57ea4d1400b7cc20 Mon Sep 17 00:00:00 2001
From: iCasture <iCasture@gmail.com>
Date: Fri, 18 Jul 2025 22:55:38 +0800
Subject: [PATCH] fix: reject MAC addresses with mixed separators

Add validation to prevent MAC addresses that use both ':' and '-'
separators simultaneously, ensuring consistent separator usage
as per MAC address format standards.
---
 src/validators/mac_address.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/validators/mac_address.py b/src/validators/mac_address.py
index fd681b7..5954260 100644
--- a/src/validators/mac_address.py
+++ b/src/validators/mac_address.py
@@ -29,4 +29,8 @@ def mac_address(value: str, /):
         (Literal[True]): If `value` is a valid MAC address.
         (ValidationError): If `value` is an invalid MAC address.
     """
+    # Check for mixed separators: MAC addresses cannot use both ':' and '-' simultaneously
+    if ":" in value and "-" in value:
+        return False
+
     return re.match(r"^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$", value) if value else False