add McxMini parser and library functionality (incomplete)

mocha-common

@@ -1 +1 @@
-Subproject commit 9919125a5130e5a5a9412dbed5520e5286703a43
+Subproject commit 8c138247e0ca8104f7cbecbdb54ccd7760d331c3

mocha-dotnet.sln

@@ -39,7 +39,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mocha.Core.Tests", "mocha-d
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "plugins", "plugins", "{B024FD23-7084-4DDF-A185-D58BEE7A006F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mocha.Plugins.Libraries.Yaml", "mocha-dotnet\src\plugins\Mocha.Plugins.Libraries.Yaml\Mocha.Plugins.Libraries.Yaml.csproj", "{96400F5A-98ED-48FF-8000-6135BDF10360}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mocha.Plugins.Libraries.McxMini", "mocha-dotnet\src\plugins\Mocha.Plugins.Libraries.McxMini\Mocha.Plugins.Libraries.McxMini.csproj", "{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -67,10 +67,10 @@ Global
 		{20B7D199-322C-4942-85FE-46B90C75E92A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{20B7D199-322C-4942-85FE-46B90C75E92A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{20B7D199-322C-4942-85FE-46B90C75E92A}.Release|Any CPU.Build.0 = Release|Any CPU
-		{96400F5A-98ED-48FF-8000-6135BDF10360}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{96400F5A-98ED-48FF-8000-6135BDF10360}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{96400F5A-98ED-48FF-8000-6135BDF10360}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{96400F5A-98ED-48FF-8000-6135BDF10360}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -91,7 +91,7 @@ Global
 		{27C300F5-5172-4225-A6F7-3503B9007DD8} = {2A2B84F1-FA6B-4D67-ACB8-E277D50C98F2}
 		{20B7D199-322C-4942-85FE-46B90C75E92A} = {27C300F5-5172-4225-A6F7-3503B9007DD8}
 		{B024FD23-7084-4DDF-A185-D58BEE7A006F} = {66EB3261-A473-41C7-8D40-E1B4DC8ED4B3}
-		{96400F5A-98ED-48FF-8000-6135BDF10360} = {B024FD23-7084-4DDF-A185-D58BEE7A006F}
+		{6005DB73-30D8-4398-8B1F-5E23C0F2FFBF} = {B024FD23-7084-4DDF-A185-D58BEE7A006F}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {D28A9CF8-0235-4F8F-865F-C460BDCAE16D}

mocha-dotnet/src/app/Mocha.ServerApplication/Program.cs

@@ -19,6 +19,7 @@ using System.Net;
 using MBS.Core;
 using MBS.Web;
 using Mocha.Core;
+using Mocha.Core.OmsImplementations;
 using Mocha.Core.OmsImplementations.Mini;
 using Mocha.Core.Oop;
 using Mocha.Core.Oop.Methods;
@@ -49,17 +50,23 @@ public class Program : MochaWebApplication
 	protected override Oms CreateOms()
 	{
 		// we can override this here to provide a different default OMS
-		MiniOms oms = new MiniOms();
+		Oms oms = new MemoryOms(); // new MiniOms();
-		// oms.Libraries.Add("/path/to/Mocha.System.mcl");
+
+		string PJPATH = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location);
+		PJPATH += "/../../../../../../../";
+
+		//  "/home/beckermj/Documents/Projects/mochapowered/mocha-dotnet";
+		LibraryHandle l_System = oms.LoadLibrary(PJPATH + "mocha-common/mocha-common/output/net.alcetech.Mocha.System.mcl");
 
 		oms.TenantCreated += oms_TenantCreated;
 
 		oms.Initialize();
 		
-		TenantHandle t_super = oms.GetTenantByName("super");
+		TenantHandle t_super = oms.CreateTenant("super");
 		{
 			// FIXME! : selecting tenant doesn't seem to be working, routes get overwritten / not created 
 			oms.SelectTenant(t_super);
+			oms.AddLibraryReference(l_System);
 
 			InstanceHandle c_Application = oms.GetInstance(KnownInstanceGuids.Classes.Application);
 			InstanceHandle i_Application = oms.CreateInstanceOf(c_Application, new Guid("{773f6c6e-6cef-4a04-b333-ac097c0ab705}"));

mocha-dotnet/src/lib/Mocha.Core/Library.cs

@@ -10,4 +10,8 @@ public class Library
     public void Link()
     {
     }
+
+	public LibraryInstance.LibraryInstanceCollection Instances { get; } = new LibraryInstance.LibraryInstanceCollection();
+	public List<LibraryAttribute> Attributes { get; } = new List<LibraryAttribute>();
+	public List<LibraryRelationship> Relationships { get; } = new List<LibraryRelationship>();
 }

mocha-dotnet/src/lib/Mocha.Core/LibraryAttribute.cs

@@ -0,0 +1,22 @@
+using System;
+
+namespace Mocha.Core;
+
+public class LibraryAttribute
+{
+	public Guid SourceInstanceGuid { get; }
+	public Guid AttributeInstanceGuid { get; }
+	public string Value { get; }
+
+	public LibraryAttribute(Guid sourceInstanceGuid, Guid attributeInstanceGuid, string value)
+	{
+		SourceInstanceGuid = sourceInstanceGuid;
+		AttributeInstanceGuid = attributeInstanceGuid;
+		Value = value;
+	}
+
+    public override string ToString()
+    {
+        return String.Format("A: {0} . {1} = '{2}'", SourceInstanceGuid.ToString("b"), AttributeInstanceGuid.ToString("b"), Value);
+    }
+}

mocha-dotnet/src/lib/Mocha.Core/LibraryInstance.cs

@@ -0,0 +1,80 @@
+
+
+
+
+/**
+ * Copyright (C) 2024 Michael Becker  <alcexhim@gmail.com>
+ * 
+ * This file is part of Mocha.NET.
+ * 
+ * Mocha.NET 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.
+ * 
+ * Mocha.NET 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 Mocha.NET.  If not, see <https://www.gnu.org/licenses/>.
+ */
+namespace Mocha.Core;
+
+public class LibraryInstance
+{
+    public class LibraryInstanceCollection : System.Collections.ObjectModel.Collection<LibraryInstance>
+    {
+        private Dictionary<Guid, LibraryInstance> _itemsByGuid = new Dictionary<Guid, LibraryInstance>();
+        private Dictionary<InstanceKey, LibraryInstance> _itemsByKey = new Dictionary<InstanceKey, LibraryInstance>();
+
+        protected override void ClearItems()
+        {
+            base.ClearItems();
+            _itemsByGuid.Clear();
+        }
+        protected override void InsertItem(int index, LibraryInstance item)
+        {
+            base.InsertItem(index, item);
+            _itemsByGuid[item.InstanceGuid] = item;
+        }
+        protected override void RemoveItem(int index)
+        {
+            _itemsByGuid.Remove(this[index].InstanceGuid);
+            base.RemoveItem(index);
+        }
+
+        public bool Contains(Guid globalIdentifier)
+        {
+            return _itemsByGuid.ContainsKey(globalIdentifier);
+        }
+        public LibraryInstance this[Guid globalIdentifier]
+        {
+            get
+            {
+                if (_itemsByGuid.ContainsKey(globalIdentifier))
+                {
+                    return _itemsByGuid[globalIdentifier];
+                }
+                return null;
+            }
+        }
+    }
+
+    public InstanceKey InstanceKey { get; set; }
+    public Guid InstanceGuid { get; set; }
+    public Guid ClassGuid { get; set; }
+
+    public LibraryInstance(InstanceKey key, Guid instanceGuid, Guid classGuid)
+    {
+        this.InstanceKey = key;
+        this.InstanceGuid = instanceGuid;
+        this.ClassGuid = classGuid;
+    }
+
+    public override string ToString()
+    {
+        return String.Format("I: {0} : {1} [{2}]", this.InstanceGuid.ToString("b"), this.ClassGuid.ToString("b"), this.InstanceKey.ToString());
+    }
+}

mocha-dotnet/src/lib/Mocha.Core/LibraryRelationship.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Mocha.Core;
+
+public class LibraryRelationship
+{
+	public Guid SourceInstanceGuid { get; set; }
+	public Guid RelationshipInstanceGuid { get; set; }
+	public Guid TargetInstanceGuid { get; set; }
+
+	public LibraryRelationship(Guid sourceInstanceGuid, Guid relationshipInstanceGuid, Guid targetInstanceGuid)
+	{
+		this.SourceInstanceGuid = sourceInstanceGuid;
+		this.RelationshipInstanceGuid = relationshipInstanceGuid;
+		this.TargetInstanceGuid = targetInstanceGuid;
+	}
+    public override string ToString()
+    {
+        return String.Format("R: {0} . {1} = {2}", SourceInstanceGuid.ToString("b"), RelationshipInstanceGuid.ToString("b"), TargetInstanceGuid.ToString("b"));
+    }
+}

mocha-dotnet/src/lib/Mocha.Core/Oms.cs

@@ -356,7 +356,7 @@ public abstract class Oms
 	public bool TryGetAttributeValue<T>(InstanceHandle source, InstanceHandle attribute, DateTime? effectiveDate, out T value)
 	{
 		DateTime dt = DateTime.Now;
-		if (HasAttributeValueInternal(source, attribute, effectiveDate.GetValueOrDefault(dt)))
+		// if (HasAttributeValueInternal(source, attribute, effectiveDate.GetValueOrDefault(dt)))
 		{
 			object? val = GetAttributeValueInternal(source, attribute, effectiveDate.GetValueOrDefault(dt));
 			if (val is T)
@@ -400,7 +400,7 @@ public abstract class Oms
 		{
 			string name = GetAttributeValue<string>(attribute, GetInstance(KnownAttributeGuids.Text.Name));
 			string sourceParentClassName = GetAttributeValue<string>(sourceParentClass, GetInstance(KnownAttributeGuids.Text.Name));
-			throw new ArgumentException(String.Format("Undefined attribute `{0}` on class `{1}`", name ?? GetGlobalIdentifier(attribute).ToString("b"), sourceParentClassName));
+			throw new ArgumentException(String.Format("Undefined attribute `{0}` on class `{1}`", name ?? GetGlobalIdentifier(attribute).ToString("b"), sourceParentClassName ?? GetGlobalIdentifier(sourceParentClass).ToString("b")));
 		}
 		
 		if (IsInstanceOf(attribute, a_TextAttribute))
@@ -1074,7 +1074,6 @@ public abstract class Oms
 		// /path/to/directory containing a bunch of XML / JSON / YAML files
 		// .mcz ZIP archive of XML / JSON / YAML files (slowest?)
 		LibraryHandle lh = LibraryHandle.Create();
-		return lh;
 		
 		Library lib = new Library();
 		// _libraries[name] = lh;
@@ -1111,9 +1110,13 @@ public abstract class Oms
 		// to do its second pass "linking" the objects
 		lib.Link();
 
+		InitializeLibraryInternal(lh, lib);
+	
 		return lh;
 	}
 
+	protected abstract void InitializeLibraryInternal(LibraryHandle lh, Library lib);
+
 	public string? GetTenantName(TenantHandle tenant)
 	{
 		if (_namesForTenant.ContainsKey(tenant))

mocha-dotnet/src/lib/Mocha.Core/OmsImplementations/MemoryOms.cs

@@ -15,7 +15,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Mocha.NET.  If not, see <https://www.gnu.org/licenses/>.
 
-
+
+using System.ComponentModel;
 using System.Data;
 
 namespace Mocha.Core.OmsImplementations;
@@ -35,7 +36,11 @@ public class MemoryOms : Oms
 
 		public Guid GetGlobalIdentifier(InstanceHandle instance)
 		{
-			return _guidsByInstance[instance];
+			if (_guidsByInstance.ContainsKey(instance))
+			{
+				return _guidsByInstance[instance];
+			}
+			return Guid.Empty;
 		}
 		public InstanceKey GetInstanceKey(InstanceHandle instance)
 		{
@@ -195,6 +200,8 @@ public class MemoryOms : Oms
 	private Dictionary<TenantHandle, _Tenant> _tenantData = new Dictionary<TenantHandle, _Tenant>();
 
 	private _Tenant _CurrentTenantData = null;
+	private Dictionary<LibraryHandle, _Tenant> _libraries = new Dictionary<LibraryHandle, _Tenant>();
+
 	private TenantHandle _CurrentTenant = TenantHandle.Empty;
 
     protected override TenantHandle CreateTenantInternal(string tenantName)
@@ -234,7 +241,15 @@ public class MemoryOms : Oms
 		if (_CurrentTenantData == null)
 			throw new InvalidOperationException("Please select a tenant first.");
 
-		return _CurrentTenantData.GetGlobalIdentifier(instance);
+		Guid gid = _CurrentTenantData.GetGlobalIdentifier(instance);
+		if (gid == Guid.Empty)
+		{
+			if (_libraryInst_is.ContainsKey(instance))
+			{
+				gid = _libraryInst_is[instance].GlobalIdentifier;
+			}
+		}
+		return gid;
     }
     protected override InstanceKey GetInstanceKeyInternal(InstanceHandle instance)
     {
@@ -271,12 +286,73 @@ public class MemoryOms : Oms
 		return ik;
     }
 
+    protected override void InitializeLibraryInternal(LibraryHandle lh, Library data)
+    {
+        _Tenant lib = new _Tenant();
+		foreach (LibraryInstance inst in data.Instances)
+		{
+			lib.CreateInstance(inst.InstanceGuid);
+		}
+		foreach (LibraryAttribute att in data.Attributes)
+		{
+			if (lib.TryGetInstance(att.SourceInstanceGuid, out InstanceHandle src)
+				&& lib.TryGetInstance(att.AttributeInstanceGuid, out InstanceHandle dst))
+			{
+				lib.SetAttributeValue(src, dst, att.Value, DateTime.Now);
+			}
+		}
+		foreach (LibraryRelationship rel in data.Relationships)
+		{
+			if (lib.TryGetInstance(rel.SourceInstanceGuid, out InstanceHandle src)
+				&& lib.TryGetInstance(rel.RelationshipInstanceGuid, out InstanceHandle dst)
+				&& lib.TryGetInstance(rel.TargetInstanceGuid, out InstanceHandle tgt))
+			{
+				lib.AssignRelationship(src, dst, new InstanceHandle[] { tgt }, DateTime.Now);
+			}
+		}
+		_libraries[lh] = lib;
+    }
+
+	private struct LibraryInst_g
+	{
+		public LibraryHandle SourceLibrary;
+		public InstanceHandle InstanceHandle;
+		public Guid GlobalIdentifier;
+	}
+	private Dictionary<Guid, LibraryInst_g> _libraryInst_gs = new Dictionary<Guid, LibraryInst_g>();
+	private Dictionary<InstanceHandle, LibraryInst_g> _libraryInst_is = new Dictionary<InstanceHandle, LibraryInst_g>();
+
     protected override bool TryGetInstanceInternal(Guid globalIdentifier, out InstanceHandle ih)
 	{
 		if (_CurrentTenantData == null)
 			throw new InvalidOperationException("Please select a tenant first.");
 
-		return _CurrentTenantData.TryGetInstance(globalIdentifier, out ih);
+		bool v = _CurrentTenantData.TryGetInstance(globalIdentifier, out ih);
+		if (!v)
+		{
+			if (_libraryInst_gs.ContainsKey(globalIdentifier))
+			{
+				ih = _libraryInst_gs[globalIdentifier].InstanceHandle;
+				return true;
+			}
+			else
+			{
+				foreach (LibraryHandle lh in _libraryReferences[_CurrentTenant])
+				{
+					if (_libraries.ContainsKey(lh))
+					{
+						if (_libraries[lh].TryGetInstance(globalIdentifier, out ih))
+						{
+							LibraryInst_g g = new LibraryInst_g() { InstanceHandle = ih, SourceLibrary = lh, GlobalIdentifier = globalIdentifier };
+							_libraryInst_gs[globalIdentifier] = g;
+							_libraryInst_is[ih] = g;
+							return true;
+						}
+					}
+				}
+			}
+		}
+		return false;
 	}
 	protected override bool TryGetInstanceInternal(InstanceKey ik, out InstanceHandle ih)
 	{
@@ -323,7 +399,22 @@ public class MemoryOms : Oms
 		if (_CurrentTenantData == null)
 			throw new InvalidOperationException("Please select a tenant first.");
 
-		return _CurrentTenantData.GetRelatedInstances(source, relationship, effectiveDate);
+		IReadOnlyCollection<InstanceHandle> insts = _CurrentTenantData.GetRelatedInstances(source, relationship, effectiveDate);
+		if (insts.Count == 0)
+		{
+			foreach (LibraryHandle lh in _libraryReferences[_CurrentTenant])
+			{
+				if (_libraries.ContainsKey(lh))
+				{
+					IReadOnlyCollection<InstanceHandle> insts2 = _libraries[lh].GetRelatedInstances(source, relationship, effectiveDate);
+					if (insts2.Count > 0)
+					{
+						return insts2;
+					}
+				}
+			}
+		}
+		return insts;
     }
 
     protected override bool HasAttributeValueInternal(InstanceHandle source, InstanceHandle attribute, DateTime effectiveDate)
@@ -338,7 +429,22 @@ public class MemoryOms : Oms
 		if (_CurrentTenantData == null)
 			throw new InvalidOperationException("Please select a tenant first.");
 
-		return _CurrentTenantData.GetAttributeValue(source, attribute, effectiveDate);
+		object value = _CurrentTenantData.GetAttributeValue(source, attribute, effectiveDate);
+		if (value == null)
+		{
+			foreach (LibraryHandle lh in _libraryReferences[_CurrentTenant])
+			{
+				if (_libraries.ContainsKey(lh))
+				{
+					value = _libraries[lh].GetAttributeValue(source, attribute, effectiveDate);
+					if (value != null)
+					{
+						return value;
+					}
+				}
+			}
+		}
+		return value;
     }
     protected override void SetAttributeValueInternal(InstanceHandle source, InstanceHandle attribute, object value, DateTime effectiveDate)
     {

mocha-dotnet/src/lib/Mocha.Core/OmsImplementations/Mini/MiniOms.cs

@@ -26,6 +26,11 @@ using MBS.Core;
 /// </summary>
 public class MiniOms : MemoryOms
 {
+	private MiniOms()
+	{
+
+	}
+
 	private TenantHandle t_super;
 	private InstanceHandle c_Class, c_Attribute, c_Relationship, c_TextAttribute, c_BooleanAttribute, c_NumericAttribute, c_DateAttribute, c_WorkSet, c_Instance, c_OMS, c_File;
 	private InstanceHandle c_CommonText, c_CommonBoolean, c_CommonNumeric, c_CommonDate, c_CommonInstanceSet;
@@ -37,7 +42,7 @@ public class MiniOms : MemoryOms
 
 	public List<MiniOmsModule> Modules { get; } = new List<MiniOmsModule>();
 
-	public MiniOms(MiniOmsModule[] modules = null)
+	private MiniOms(MiniOmsModule[] modules = null)
 	{
 		if (modules == null)
 		{

mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/BinaryReaderExtensions.cs

@@ -0,0 +1,55 @@
+using System;
+using MBS.Core;
+
+namespace Mocha.Plugins.Libraries.McxMini;
+
+public static class BinaryReaderExtensions
+{
+	public static string ReadFixedString(this System.IO.BinaryReader reader, int length, System.Text.Encoding encoding = null)
+	{
+		if (encoding == null)
+		{
+			encoding = System.Text.Encoding.UTF8;
+		}
+		
+		byte[] bytes = reader.ReadBytes(length);
+		return encoding.GetString(bytes);
+	}
+	public static Guid ReadGuid(this System.IO.BinaryReader reader)
+	{
+		byte[] bytes = reader.ReadBytes(16);
+		return new Guid(bytes);
+	}
+	public static string ReadNullTerminatedString(this System.IO.BinaryReader reader, System.Text.Encoding encoding = null)
+	{
+		if (encoding == null)
+		{
+			encoding = System.Text.Encoding.UTF8;
+		}
+
+		List<byte> bytes = new List<byte>();
+		while (true)
+		{
+			try
+			{
+				byte value = reader.ReadByte();
+				if (value == 0)
+				{
+					// FIXME: If we use Unicode (UTF-16), end of string is actually two zeroes (\0\0)
+					break;
+				}
+
+				bytes.Add(value);
+			}
+			catch (EndOfStreamException ex)
+			{
+				break;
+			}
+			catch (IOException ex)
+			{
+				break;
+			}
+		}
+		return encoding.GetString(bytes.ToArray());
+	}
+}

mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/EditorMini/InvalidDataFormatException.cs

@@ -0,0 +1,8 @@
+using System;
+
+namespace Mocha.Plugins.Libraries.McxMini.EditorMini;
+
+public class InvalidDataFormatException : Exception
+{
+
+}

mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniFlags.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace Mocha.Plugins.Libraries.McxMini;
+
+[Flags]
+public enum McxMiniFlags
+{
+	None = 0x00,
+	HasSections = 0x01,
+	HasNames = 0x02,
+	HasCounts = 0x04,
+	Debug = 0x08
+}

mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/McxMiniPlugin.cs

@@ -0,0 +1,173 @@
+namespace Mocha.Plugins.Libraries.McxMini;
+
+using System.Runtime.InteropServices;
+using MBS.Core;
+using Mocha.Core;
+using Mocha.Plugins.Libraries.McxMini.EditorMini;
+
+public class McxMiniLibraryPlugin : LibraryPlugin
+{
+	private struct McxInstance
+	{
+		public Guid ClassGuid;
+		public Guid InstanceGuid;
+		public int ClassIndex;
+		public int InstanceIndex;
+	}
+	private struct McxAttribute
+	{
+		public Guid SourceInstanceGuid;
+		public Guid AttributeInstanceGuid;
+		public int ValueIndex;
+	}
+	private struct McxSection
+	{
+		public string Name;
+		public int Offset;
+		public int Length;
+		public int Count;
+	}
+
+	protected override bool SupportsFileNameInternal(string filename)
+	{
+		string ext = System.IO.Path.GetExtension(filename);
+		return ext.Equals(".mcx") || ext.Equals(".mcl");
+    }
+
+    protected override void LoadInternal(string filename, Library library)
+    {
+		FileStream fs = File.Open(filename, FileMode.Open);
+		BinaryReader r = new BinaryReader(fs);
+
+		string signature = r.ReadFixedString(4);
+		if (!signature.Equals("MCX!"))
+		{
+			throw new InvalidDataFormatException();
+		}
+
+		float version = r.ReadSingle();
+		if (version != 2.0f)
+		{
+			Console.Error.WriteLine(String.Format("MCX format version {0} unsupported", version));
+		}
+
+		McxMiniFlags flags = (McxMiniFlags)r.ReadInt32();
+
+		int sectionsCount = r.ReadInt32();
+		
+		Dictionary<string, McxSection> sections = new Dictionary<string, McxSection>();
+		for (int i = 0; i < sectionsCount; i++)
+		{
+			McxSection section = new McxSection();
+			if ((flags & McxMiniFlags.HasNames) == McxMiniFlags.HasNames)
+			{
+				section.Name = r.ReadFixedString(16).TrimNull();
+			}
+			else
+			{
+				section.Name = i.ToString();
+			}
+
+			section.Offset = r.ReadInt32();
+			section.Length = r.ReadInt32();
+			if ((flags & McxMiniFlags.HasCounts) == McxMiniFlags.HasCounts)
+			{
+				section.Count = r.ReadInt32();
+			}
+			if (((flags & McxMiniFlags.HasNames) == McxMiniFlags.HasNames)
+			&& ((flags & McxMiniFlags.HasCounts) == McxMiniFlags.HasCounts))
+			{
+				int reserved = r.ReadInt32(); // padding
+			}
+			sections[section.Name] = section;
+		}
+
+		if (sections.Count < 5)
+		{
+			throw new InvalidDataFormatException();
+		}
+
+		McxSection guidsSection = sections["GUIDTable"];
+		McxSection instancesSection = sections["Instances"];
+		McxSection attributesSection = sections["Attributes"];
+		McxSection relationshipsSection = sections["Relationships"];
+		McxSection stringTableSection = sections["StringTable"];
+		McxSection resourcesSection = new McxSection();
+		if (sections.ContainsKey("Resources"))
+		{
+			resourcesSection = sections["Resources"];
+		}
+		
+		if (guidsSection.Count != instancesSection.Count)
+		{
+			Console.Error.WriteLine("guid count not equal to instance count?");
+		}
+
+		r.BaseStream.Seek(guidsSection.Offset, SeekOrigin.Begin);
+		List<Guid> guids = new List<Guid>();
+		for (int i = 0; i < guidsSection.Count; i++)
+		{
+			Guid guid = r.ReadGuid();
+			guids.Add(guid);
+		}
+
+		r.BaseStream.Seek(instancesSection.Offset, SeekOrigin.Begin);
+		// McxInstance[] instances = new McxInstance[instancesCount];
+		for (int i = 0; i < instancesSection.Count; i++)
+		{
+			int classGuidIndex = r.ReadInt32();
+			int instanceGuidIndex = r.ReadInt32();
+			int classIndex = r.ReadInt32();
+			int instanceIndex = r.ReadInt32();
+			
+			Guid classGuid = guids[classGuidIndex];
+			Guid instanceGuid = guids[instanceGuidIndex];
+
+			InstanceKey key = new InstanceKey(classIndex, instanceIndex);
+			library.Instances.Add(new LibraryInstance(key, instanceGuid, classGuid));
+		}
+
+		r.BaseStream.Seek(attributesSection.Offset, SeekOrigin.Begin);
+		McxAttribute[] attributes = new McxAttribute[attributesSection.Count];
+		for (int i = 0; i < attributesSection.Count; i++)
+		{
+			int sourceInstanceIndex = r.ReadInt32();
+			int attributeInstanceIndex = r.ReadInt32();
+
+			attributes[i].SourceInstanceGuid = guids[sourceInstanceIndex];
+			attributes[i].AttributeInstanceGuid = guids[attributeInstanceIndex];
+			attributes[i].ValueIndex = r.ReadInt32();
+		}
+
+		r.BaseStream.Seek(relationshipsSection.Offset, SeekOrigin.Begin);
+		for (int i = 0; i < relationshipsSection.Count; i++)
+		{
+			int sourceInstanceIndex = r.ReadInt32();
+			int relationshipInstanceIndex = r.ReadInt32();
+			int targetInstanceIndex = r.ReadInt32();
+
+			Guid sourceInstanceGuid = guids[sourceInstanceIndex];
+			Guid relationshipInstanceGuid = guids[relationshipInstanceIndex];
+			Guid targetInstanceGuid = guids[targetInstanceIndex];
+
+			library.Relationships.Add(new LibraryRelationship(sourceInstanceGuid, relationshipInstanceGuid, targetInstanceGuid));
+		}
+		
+		r.BaseStream.Seek(stringTableSection.Offset, SeekOrigin.Begin);
+		string[] stringTable = new string[stringTableSection.Count];
+		for (int i = 0; i < stringTableSection.Count; i++)
+		{
+			stringTable[i] = r.ReadNullTerminatedString();
+		}
+
+		for (int i = 0; i < attributesSection.Count; i++)
+		{
+			library.Attributes.Add(new LibraryAttribute(attributes[i].SourceInstanceGuid, attributes[i].AttributeInstanceGuid, stringTable[attributes[i].ValueIndex]));
+		}
+
+		if (resourcesSection.Length > 0)
+		{
+			
+		}
+    }
+}

mocha-dotnet/src/plugins/Mocha.Plugins.Libraries.McxMini/Mocha.Plugins.Libraries.McxMini.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\lib\Mocha.Core\Mocha.Core.csproj" />
+    <ProjectReference Include="..\..\..\..\framework-dotnet\framework-dotnet\src\lib\MBS.Core\MBS.Core.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>