From ab246fdcbf877dc84456af921680b9925cbd3ff1 Mon Sep 17 00:00:00 2001
From: 21pages <sunboeasy@gmail.com>
Date: Fri, 13 Sep 2024 09:29:00 +0800
Subject: [PATCH] password lowercase check like uppercase (#9343)

Signed-off-by: 21pages <sunboeasy@gmail.com>
---
 flutter/lib/common/widgets/custom_password.dart | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/flutter/lib/common/widgets/custom_password.dart b/flutter/lib/common/widgets/custom_password.dart
index 1fa6e3645..dafc23b44 100644
--- a/flutter/lib/common/widgets/custom_password.dart
+++ b/flutter/lib/common/widgets/custom_password.dart
@@ -28,7 +28,11 @@ class LowercaseValidationRule extends ValidationRule {
 
   @override
   bool validate(String value) {
-    return value.contains(RegExp(r'[a-z]'));
+    return value.runes.any((int rune) {
+      var character = String.fromCharCode(rune);
+      return character.toLowerCase() == character &&
+          character.toUpperCase() != character;
+    });
   }
 }