From bd29ed4563229935b39b6ec8896d5c9d9cd16d0e Mon Sep 17 00:00:00 2001
From: Aditya Pandey <116456309+EclipseAditya@users.noreply.github.com>
Date: Sat, 28 Feb 2026 22:20:28 +0530
Subject: [PATCH] fix: escape + and / in Base64 string regex, add URL-safe
 variant

---
 .../encoding/base64/reference-base64-string.yml            | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/data-manipulation/encoding/base64/reference-base64-string.yml b/data-manipulation/encoding/base64/reference-base64-string.yml
index b1eb67f2..aac505ff 100644
--- a/data-manipulation/encoding/base64/reference-base64-string.yml
+++ b/data-manipulation/encoding/base64/reference-base64-string.yml
@@ -13,8 +13,13 @@ rule:
       - Data::Encode Data::Base64 [C0026.001]
       - Data::Check String [C0019]
     examples:
+      - B766CC43D649D30E9F27AFF8F7EE7DE0
       - BFB9B5391A13D0AFD787E87AB90F14F5
       - 074072B261FC27B65C72671F13510C05
       - 5DB2D2BE20D59AA0BE6709A6850F1775
   features:
-    - string: /ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/
+    - or:
+      - string: /ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\+\//
+        description: standard Base64 alphabet
+      - string: /ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_/
+        description: URL-safe Base64 alphabet