strict uppercase/lowercase rule

Author: SkyWalkerGhost

src/Constants/ValidationRegex.php

@@ -12,7 +12,7 @@ class ValidationRegex
     /**
      * Only letters
      */
-    public const LETTERS = 'regex:/\pL/u';
+    public const LETTERS_ONLY = '/^\p{L}+$/u';
 
     /**
      * Letters and spaces

src/Rules/LowercaseWord.php

@@ -5,6 +5,7 @@
 use Closure;
 use Illuminate\Contracts\Validation\ValidationRule;
 use Illuminate\Support\Str;
+use Shergela\Validations\Constants\ValidationRegex;
 
 class LowercaseWord implements ValidationRule
 {
@@ -28,6 +29,11 @@ public function validate(string $attribute, mixed $value, Closure $fail): void
 
         $count = count($pregSplit);
 
+        if (! preg_match(ValidationRegex::LETTERS_ONLY, $toString)) {
+            $fail("The :attribute ($toString) must be a alphabetic word.");
+            return;
+        }
+
         if ($count > 1) {
             $fail("The :attribute ($toString) must be one lowercase word. ($count) words given.");
             return;

src/Rules/UppercaseWord.php

@@ -5,6 +5,7 @@
 use Closure;
 use Illuminate\Contracts\Validation\ValidationRule;
 use Illuminate\Support\Str;
+use Shergela\Validations\Constants\ValidationRegex;
 
 class UppercaseWord implements ValidationRule
 {
@@ -28,6 +29,11 @@ public function validate(string $attribute, mixed $value, Closure $fail): void
 
         $count = count($pregSplit);
 
+        if (! preg_match(ValidationRegex::LETTERS_ONLY, $toString)) {
+            $fail("The :attribute ($toString) must be a alphabetic word.");
+            return;
+        }
+
         if ($count > 1) {
             $fail("The :attribute ($toString) must be one uppercase word. ($count) words given.");
             return;