Complete rework of output of fs ls command output.

Aaru.Core/FileAttributesExtensions.cs

@@ -0,0 +1,71 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : Ls.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Commands.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program 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 General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2025 Natalia Portillo
+// ****************************************************************************/
+
+using Aaru.CommonTypes.Structs;
+
+namespace Aaru.Core;
+
+public static class FileAttributesExtensions
+{
+    /// <summary>
+    ///     Returns a 19-character string representation of the attributes
+    /// </summary>
+    public static string ToAttributeChars(this FileAttributes flags)
+    {
+        char[] attr                                  = new char[19];
+        for(int i = 0; i < attr.Length; i++) attr[i] = '.';
+
+        (FileAttributes Flag, int Slot, char Symbol)[] attrs =
+        [
+            (FileAttributes.AppendOnly, 1, 'a'), (FileAttributes.Alias, 0, 'l'), (FileAttributes.Archive, 1, 'A'),
+            (FileAttributes.BlockDevice, 0, 'b'), (FileAttributes.Bundle, 0, 'B'),
+            (FileAttributes.CharDevice, 0, 'c'), (FileAttributes.Compressed, 5, 'z'),
+            (FileAttributes.Device, 0, 'v'), (FileAttributes.Directory, 0, 'd'), (FileAttributes.Encrypted, 6, 'e'),
+            (FileAttributes.Extents, 7, 'e'), (FileAttributes.FIFO, 0, 'F'), (FileAttributes.File, 0, 'f'),
+            (FileAttributes.HasBeenInited, 8, 'i'), (FileAttributes.HasCustomIcon, 9, 'c'),
+            (FileAttributes.HasNoINITs, 8, 'n'), (FileAttributes.Hidden, 4, 'H'),
+            (FileAttributes.Immutable, 2, 'i'), (FileAttributes.IndexedDirectory, 1, 'i'),
+            (FileAttributes.Inline, 11, 'i'), (FileAttributes.IntegrityStream, 12, 'i'),
+            (FileAttributes.IsOnDesk, 13, 'd'), (FileAttributes.Journaled, 14, 'j'),
+            (FileAttributes.NoAccessTime, 15, 'a'), (FileAttributes.NoCopyOnWrite, 16, 'w'),
+            (FileAttributes.NoDump, 1, 'd'), (FileAttributes.Password, 17, 'p'), (FileAttributes.ReadOnly, 2, 'R'),
+            (FileAttributes.ReparsePoint, 0, 'r'), (FileAttributes.Sparse, 18, 's'),
+            (FileAttributes.Shadow, 0, 'l'), (FileAttributes.Stationery, 0, 't'), (FileAttributes.Symlink, 0, 'l'),
+            (FileAttributes.System, 3, 'S'), (FileAttributes.TopDirectory, 0, 'T'),
+            (FileAttributes.Undeletable, 2, 'u'), (FileAttributes.Pipe, 0, 'p'), (FileAttributes.Socket, 0, 's'),
+            (FileAttributes.Deleted, 2, 'd'), (FileAttributes.Executable, 10, 'x')
+        ];
+
+        // 4) Post-process extras: only overwrite slots still ‘.’
+        foreach((FileAttributes flag, int slot, char symbol) in attrs)
+            if(slot >= 0 && slot < attr.Length && attr[slot] == '.' && flags.HasFlag(flag))
+                attr[slot] = symbol;
+
+        return new string(attr);
+    }
+}