From 15fbb52452f0d38e116372fbd77cf94d5fc7ddef Mon Sep 17 00:00:00 2001
From: BROBIRD <7692707+BROBIRD@users.noreply.github.com>
Date: Tue, 2 Jun 2026 01:33:35 +0800
Subject: [PATCH] fix some bugs

---
 scripts/gfwlist_parser.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/scripts/gfwlist_parser.py b/scripts/gfwlist_parser.py
index 3f343d0..5133269 100644
--- a/scripts/gfwlist_parser.py
+++ b/scripts/gfwlist_parser.py
@@ -16,9 +16,13 @@ def is_ip(s):
             if all(0 <= int(p) <= 255 for p in parts):
                 return True
     if ':' in s:
-        valid_chars = set('0123456789abcdefABCDEF:')
-        if all(c in valid_chars for c in s):
+        ipv6_pattern = r'^([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}$|^(::)$|^::1$'
+        if re.match(ipv6_pattern, s):
             return True
+        if s.startswith('::ffff:'):
+            ipv4_in_v6_pattern = r'^::ffff:(\d{1,3}\.){3}\d{1,3}$'
+            if re.match(ipv4_in_v6_pattern, s):
+                return True
         return False
     return False