Refactor image classes and split them to smaller files.

DiscImageChef.DiscImages/SuperCardPro/Helpers.cs

@@ -0,0 +1,58 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Helpers.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Contains helpers for SuperCardPro flux images.
+//
+// --[ 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 © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.IO;
+using System.Text;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class SuperCardPro
+    {
+        static string ReadPStringUtf8(Stream stream, uint position)
+        {
+            if(position == 0) return null;
+
+            stream.Position = position;
+            byte[] lenB = new byte[2];
+            stream.Read(lenB, 0, 2);
+            ushort len = BitConverter.ToUInt16(lenB, 0);
+
+            if(len == 0 || len + stream.Position >= stream.Length) return null;
+
+            byte[] str = new byte[len];
+            stream.Read(str, 0, len);
+
+            return Encoding.UTF8.GetString(str);
+        }
+    }
+}