diff core/lib/Drupal/Component/Uuid/Uuid.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Component/Uuid/Uuid.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,31 @@
+<?php
+
+namespace Drupal\Component\Uuid;
+
+/**
+ * UUID Helper methods.
+ */
+class Uuid {
+
+  /**
+   * The pattern used to validate a UUID string.
+   */
+  const VALID_PATTERN = '[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}';
+
+  /**
+   * Checks whether a string appears to be in the format of a UUID.
+   *
+   * Implementations should not implement validation, since UUIDs should be in
+   * a consistent format across all implementations.
+   *
+   * @param string $uuid
+   *   The string to test.
+   *
+   * @return bool
+   *   TRUE if the string is well formed, FALSE otherwise.
+   */
+  public static function isValid($uuid) {
+    return (bool) preg_match('/^' . self::VALID_PATTERN . '$/', $uuid);
+  }
+
+}