diff --git a/src/CliProgram/Validation/Validators/FileValidator.php b/src/CliProgram/Validation/Validators/FileValidator.php
index 42cbc6e..0626c13 100644
--- a/src/CliProgram/Validation/Validators/FileValidator.php
+++ b/src/CliProgram/Validation/Validators/FileValidator.php
@@ -10,19 +10,35 @@ use SplFileInfo;
  */
 class FileValidator extends DirectoryValidator {
     /**
-     * @var string|null The allowed extensions (regex pattern)
+     * @var string|null The filename pattern (regex)
+     *                  <br>Null if no restriction
      */
-    private ?string $extensionsPattern;
+    private ?string $filenamePattern;
 
     /**
      * Initialization
      *
-     * @param string|null                                                                                  $extensionsPattern The allowed extensions (regex pattern)
-     * @param FilesystemValidationOptionsList|FilesystemValidationOption[]|FilesystemValidationOption|null $options           The options
+     * @param string|null                                                                                  $filenamePattern The filename pattern (regex)
+     *                                                                                                                      <br>Null if no restriction
+     * @param FilesystemValidationOptionsList|FilesystemValidationOption[]|FilesystemValidationOption|null $options         The options
      */
-    public function __construct (?string $extensionsPattern = null, FilesystemValidationOptionsList|FilesystemValidationOption|array|null $options = null) {
+    public function __construct (?string $filenamePattern = null, FilesystemValidationOptionsList|FilesystemValidationOption|array|null $options = null) {
         parent::__construct($options);
-        $this->setExtensionsPattern($extensionsPattern);
+        $this->setFilenamePattern($filenamePattern);
+    }
+
+    /**
+     * Créer un pattern de fichier (regex) pour vérifier l'extension du fichier
+     *
+     * La comparaison est insensible à la casse
+     *
+     * @param string $extension          L'extension attendue
+     * @param string ...$extraExtensions Des extensions complémentaires autorisées
+     *
+     * @return string|null Le pattern de regex correspondant
+     */
+    public static function createExtensionPattern (string $extension, string ...$extraExtensions): ?string {
+        return /** @lang PhpRegExp */ '/\.(' . implode(preg_quote('|', '/'), array_merge([$extension], $extraExtensions)) . ')$/i';
     }
 
     /**
@@ -32,7 +48,7 @@ class FileValidator extends DirectoryValidator {
         if (($default = parent::getValidDefault($default)) === null) {
             return null;
         }
-        if ($this->extensionsPattern !== null && preg_match($this->extensionsPattern, $default) !== 1) {
+        if ($this->filenamePattern !== null && preg_match($this->filenamePattern, $default) !== 1) {
             throw new InvalidArgumentException('The default value has not a valid extension');
         }
         return $default;
@@ -44,29 +60,32 @@ class FileValidator extends DirectoryValidator {
         if (!parent::validate($value)) {
             return false;
         }
-        if ($this->extensionsPattern !== null && preg_match($this->extensionsPattern, $value) !== 1) {
+        if ($this->filenamePattern !== null && preg_match($this->filenamePattern, $value) !== 1) {
             return false;
         }
         return true;
     }
 
     /**
-     * The allowed extensions (regex pattern)
+     * The filename pattern (regex)
+     *
+     * Null if no restriction
      *
-     * @return string|null The allowed extensions (regex pattern)
+     * @return string|null The filename pattern (regex)
      */
-    public function getExtensionsPattern (): ?string {
-        return $this->extensionsPattern;
+    public function getFilenamePattern (): ?string {
+        return $this->filenamePattern;
     }
     /**
-     * Replace the allowed extensions
+     * Replace filename pattern (regex)
      *
-     * @param string|null $extensionsPattern The allowed extensions (regex pattern)
+     * @param string|null $filenamePattern The filename pattern (regex)
+     *                                     <br>Null if no restriction
      *
      * @return $this
      */
-    public function setExtensionsPattern (?string $extensionsPattern = null): static {
-        $this->extensionsPattern = $extensionsPattern;
+    public function setFilenamePattern (?string $filenamePattern = null): static {
+        $this->filenamePattern = $filenamePattern;
         return $this;
     }
 
@@ -74,6 +93,9 @@ class FileValidator extends DirectoryValidator {
      * @inheritDoc
      */
     protected function checkSuggestedFile (SplFileInfo $file): bool {
-        return true;
+        if ($file->isDir()) {
+            return true;            // Pour permettre l'auto-complétion d'un nom de répertoire devant le fichier
+        }
+        return $this->filenamePattern === null || preg_match($this->filenamePattern, $file->getFilename()) === 1;
     }
 }
\ No newline at end of file