refactor: move regex_helper func to deriv_ui

packages/deriv_auth_ui/lib/src/features/setting_page/layouts/deriv_setting_layout.dart

@@ -1,7 +1,7 @@
 import 'package:deriv_auth_ui/src/core/extensions/context_extension.dart';
 import 'package:deriv_auth_ui/src/core/helpers/endpoint_helper.dart';
-import 'package:deriv_auth_ui/src/core/helpers/regex_helper.dart';
 import 'package:deriv_theme/deriv_theme.dart';
+import 'package:deriv_ui/utils/regex_helpers.dart';
 import 'package:flutter/material.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 

packages/deriv_auth_ui/pubspec.yaml

@@ -25,12 +25,14 @@ dependencies:
       url: [email protected]:regentmarkets/flutter-deriv-packages.git
       path: packages/deriv_theme
       ref: dev
+      # TODO(@ahrar-deriv): replace after merge commit PR 314
   deriv_ui:
-    git:
-      url: [email protected]:sahani-deriv/flutter-deriv-packages.git
-      path: packages/deriv_ui
-      ref: auth-ui-update
-
+    path: ../deriv_ui
+    # git:
+    #   url: [email protected]:sahani-deriv/flutter-deriv-packages.git
+    #   path: packages/deriv_ui
+    #   ref: auth-ui-update
+    #
   flutter_svg: ^1.1.6
   smooth_page_indicator: ^1.1.0
   intl_utils: ^2.8.3

packages/deriv_ui/lib/utils/regex_helpers.dart

@@ -20,3 +20,10 @@ RegExp validPasswordLengthRegex = RegExp(r'^.{8,25}$');
 
 /// Valid Password length for login.
 RegExp validLoginPasswordLengthRegex = RegExp(r'^.{6,25}$');
+
+/// Check if [str] input contains only a-z letters and 0-9 numbers
+bool hasOnlySmallLettersAndNumberInput(String str) =>
+    RegExp('^[a-z0-9.]+\$').hasMatch(str);
+
+/// Check if [string] input contains only 0-9 numbers
+bool hasOnlyNumberInput(String string) => RegExp('^[0-9]+\$').hasMatch(string);