Support UPPER_SNAKE_CASE and PascalCase in stringOptions() (resolve #22)

src/Options.php

@@ -41,7 +41,20 @@ trait Options
         }
 
         // Default callback
-        $callback ??= fn ($name, $value) => "<option value=\"{$value}\">" . ucfirst(strtolower($name)) . '</option>';
+        $callback ??= function ($name, $value) {
+            if (str_contains($name, '_')) {
+                // Snake case
+                $words = explode('_', $name);
+            } else if (strtoupper($name) === $name) {
+                // If the entire name is uppercase without underscores, it's a single word
+                $words = [$name];
+            } else {
+                // Pascal case or camel case
+                $words = array_filter(preg_split('/(?=[A-Z])/', $name));
+            }
+
+            return "<option value=\"{$value}\">" . ucfirst(strtolower(implode(' ', $words))) . '</option>';
+        };
 
         $options = array_map($callback, array_keys($options), array_values($options));
 

tests/Pest.php

@@ -61,3 +61,35 @@ enum Role
     #[Instructions('Guest users can only view the existing records')]
     case GUEST;
 }
+
+enum MultiWordSnakeCaseEnum
+{
+    use Options;
+
+    case FOO_BAR;
+    case BAR_BAZ;
+}
+
+enum BackedMultiWordSnakeCaseEnum: int
+{
+    use Options;
+
+    case FOO_BAR = 0;
+    case BAR_BAZ = 1;
+}
+
+enum PascalCaseEnum
+{
+    use Options;
+
+    case FooBar;
+    case BarBaz;
+}
+
+enum BackedPascalCaseEnum: int
+{
+    use Options;
+
+    case FooBar = 0;
+    case BarBaz = 1;
+}

tests/Pest/OptionsTest.php

@@ -27,3 +27,16 @@ it('returns default HTML options from backed enums')
 it('returns default HTML options from pure enums')
     ->expect(Role::stringOptions())
     ->toBe('<option value="ADMIN">Admin</option>\n<option value="GUEST">Guest</option>');
+
+it('returns default HTML options from pure enums with snake case')
+    ->expect(MultiWordSnakeCaseEnum::stringOptions())
+    ->toBe('<option value="FOO_BAR">Foo bar</option>\n<option value="BAR_BAZ">Bar baz</option>');
+
+it('returns default HTML options from backed enums with snake case')
+    ->expect(BackedMultiWordSnakeCaseEnum::stringOptions())
+    ->toBe('<option value="0">Foo bar</option>\n<option value="1">Bar baz</option>');
+
+it('returns default HTML options from pure enums with pascal case')
+    ->expect(BackedPascalCaseEnum::stringOptions())
+    ->toBe('<option value="0">Foo bar</option>\n<option value="1">Bar baz</option>');
+