Moved submodules to directories.

Aaru.Helpers/ArrayIsEmpty.cs

@@ -0,0 +1,50 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : ArrayIsEmpty.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Helpers.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Methods for detecting an empty array.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This library is free software; you can redistribute it and/or modify
+//     it under the terms of the GNU Lesser General Public License as
+//     published by the Free Software Foundation; either version 2.1 of the
+//     License, or (at your option) any later version.
+//
+//     This library is distributed in the hope that it will be useful, but
+//     WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+//     Lesser General Public License for more details.
+//
+//     You should have received a copy of the GNU Lesser General Public
+//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2023 Natalia Portillo
+// ****************************************************************************/
+
+using System.Linq;
+
+namespace Aaru.Helpers
+{
+    /// <summary>Helper operations to work with arrays</summary>
+    public static partial class ArrayHelpers
+    {
+        /// <summary>Checks if an array is null, filled with the NULL byte (0x00) or ASCII whitespace (0x20)</summary>
+        /// <param name="array">Array</param>
+        /// <returns>True if null or whitespace</returns>
+        public static bool ArrayIsNullOrWhiteSpace(byte[] array) => array?.All(b => b == 0x00 || b == 0x20) != false;
+
+        /// <summary>Checks if an array is null or filled with the NULL byte (0x00)</summary>
+        /// <param name="array">Array</param>
+        /// <returns>True if null</returns>
+        public static bool ArrayIsNullOrEmpty(byte[] array) => array?.All(b => b == 0x00) != false;
+    }
+}