Torque3D/Engine/source/persistence/taml/taml.cpp

//-----------------------------------------------------------------------------
// Copyright (c) 2013 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#include "taml.h"

#ifndef _TAML_XMLWRITER_H_
#include "persistence/taml/xml/tamlXmlWriter.h"
#endif

#ifndef _TAML_XMLREADER_H_
#include "persistence/taml/xml/tamlXmlReader.h"
#endif

#ifndef _TAML_XMLPARSER_H_
#include "persistence/taml/xml/tamlXmlParser.h"
#endif

#ifndef _TAML_BINARYWRITER_H_
#include "persistence/taml/binary/tamlBinaryWriter.h"
#endif

#ifndef _TAML_BINARYREADER_H_
#include "persistence/taml/binary/tamlBinaryReader.h"
#endif

/*#ifndef _TAML_JSONWRITER_H_
#include "taml/json/tamlJSONWriter.h"
#endif

#ifndef _TAML_JSONREADER_H_
#include "taml/json/tamlJSONReader.h"
#endif

#ifndef _TAML_JSONPARSER_H_
#include "taml/json/tamlJSONParser.h"
#endif*/

#ifndef _FRAMEALLOCATOR_H_
#include "core/frameAllocator.h"
#endif

#ifndef _SIMBASE_H_
#include "console/simBase.h"
#endif

#ifndef _MATHTYPES_H_
#include "math/mathTypes.h"
#endif

#ifndef _MPOINT2_H_
#include "math/mPoint2.h"
#endif

#ifndef _ASSET_BASE_H_
#include "assets/assetBase.h"
#endif

// Script bindings.
#include "taml_ScriptBinding.h"

// Debug Profiling.
#include "platform/profiler.h"

//-----------------------------------------------------------------------------

IMPLEMENT_CONOBJECT(Taml);

//-----------------------------------------------------------------------------

StringTableEntry tamlRefIdName = StringTable->insert("TamlId");
StringTableEntry tamlRefToIdName = StringTable->insert("TamlRefId");
StringTableEntry tamlNamedObjectName = StringTable->insert("Name");

//-----------------------------------------------------------------------------

typedef Taml::TamlFormatMode _TamlFormatMode;
ImplementEnumType(_TamlFormatMode,
   "")
{
   Taml::XmlFormat, "xml"
},
{ Taml::BinaryFormat, "binary" }//,
                                //{ Taml::JSONFormat, "json" }
   EndImplementEnumType;

   //-----------------------------------------------------------------------------

   Taml::TamlFormatMode Taml::getFormatModeEnum(const char* label)
   {
      // Search for Mnemonic.
      for (U32 i = 0; i < (sizeof(__TamlFormatMode::_sEnums) / sizeof(EnumTable::Value)); i++)
      {
         if (dStricmp(__TamlFormatMode::_sEnumTable[i].getName(), label) == 0)
            return (TamlFormatMode)__TamlFormatMode::_sEnumTable[i].getInt();
      }

      // Warn.
      Con::warnf("Taml::getFormatModeEnum() - Invalid format of '%s'.", label);

      return Taml::InvalidFormat;
   }

   //-----------------------------------------------------------------------------

   const char* Taml::getFormatModeDescription(const Taml::TamlFormatMode formatMode)
   {
      // Search for Mnemonic.
      for (U32 i = 0; i < (sizeof(__TamlFormatMode::_sEnums) / sizeof(EnumTable::Value)); i++)
      {
         if (__TamlFormatMode::_sEnumTable[i].getInt() == (S32)formatMode)
            return __TamlFormatMode::_sEnumTable[i].getName();
      }

      // Warn.
      Con::warnf("Taml::getFormatModeDescription() - Invalid format mode.");

      return StringTable->EmptyString();
   }

   //-----------------------------------------------------------------------------

   // The string-table-entries are set to string literals below because Taml is used in a static scope and the string-table cannot currently be used like that.
   Taml::Taml() :
      mMasterNodeId(0),
      mFormatMode(XmlFormat),
      mJSONStrict(true),
      mBinaryCompression(true),
      mWriteDefaults(false),
      mAutoFormatXmlExtension("taml"),
      mAutoFormat(true),
      mProgenitorUpdate(true),
      mAutoFormatBinaryExtension("baml"),
      mAutoFormatJSONExtension("json")
   {
      // Reset the file-path buffer.
      mFilePathBuffer[0] = 0;
   }

   //-----------------------------------------------------------------------------

   void Taml::initPersistFields()
   {
      // Call parent.
      Parent::initPersistFields();

      addField("Format", TYPEID<_TamlFormatMode>(), Offset(mFormatMode, Taml), "The read/write format that should be used.");
      addField("JSONStrict", TypeBool, Offset(mBinaryCompression, Taml), "Whether to write JSON that is strictly compatible with RFC4627 or not.\n");
      addField("BinaryCompression", TypeBool, Offset(mBinaryCompression, Taml), "Whether ZIP compression is used on binary formatting or not.\n");
      addField("WriteDefaults", TypeBool, Offset(mWriteDefaults, Taml), "Whether to write static fields that are at their default or not.\n");
      addField("ProgenitorUpdate", TypeBool, Offset(mProgenitorUpdate, Taml), "Whether to update each type instances file-progenitor or not.\n");
      addField("AutoFormat", TypeBool, Offset(mAutoFormat, Taml), "Whether the format type is automatically determined by the filename extension or not.\n");
      addField("AutoFormatXmlExtension", TypeString, Offset(mAutoFormatXmlExtension, Taml), "When using auto-format, this is the extension (end of filename) used to detect the XML format.\n");
      addField("AutoFormatBinaryExtension", TypeString, Offset(mAutoFormatBinaryExtension, Taml), "When using auto-format, this is the extension (end of filename) used to detect the BINARY format.\n");
      addField("AutoFormatJSONExtension", TypeString, Offset(mAutoFormatJSONExtension, Taml), "When using auto-format, this is the extension (end of filename) used to detect the JSON format.\n");
   }

   //-----------------------------------------------------------------------------

   bool Taml::onAdd()
   {
      // Call parent.
      if (!Parent::onAdd())
         return false;

      // Set JSON strict mode.
      mJSONStrict = Con::getBoolVariable(TAML_JSON_STRICT_VARIBLE, true);

      // Reset the compilation.
      resetCompilation();

      return true;
   }

   //-----------------------------------------------------------------------------

   void Taml::onRemove()
   {
      // Reset the compilation.
      resetCompilation();

      // Call parent.
      Parent::onRemove();
   }

   //-----------------------------------------------------------------------------

   bool Taml::write(SimObject* pSimObject, const char* pFilename)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_Write);

      // Sanity!
      AssertFatal(pSimObject != NULL, "Cannot write a NULL object.");
      AssertFatal(pFilename != NULL, "Cannot write to a NULL filename.");

      // Expand the file-name into the file-path buffer.
      Con::expandToolScriptFilename(mFilePathBuffer, sizeof(mFilePathBuffer), pFilename);

      FileStream stream;

      // File opened?
      if (!stream.open(mFilePathBuffer, Torque::FS::File::Write))
      {
         // No, so warn.
         Con::warnf("Taml::writeFile() - Could not open filename '%s' for write.", mFilePathBuffer);
         return false;
      }

      // Get the file auto-format mode.
      const TamlFormatMode formatMode = getFileAutoFormatMode(mFilePathBuffer);

      // Reset the compilation.
      resetCompilation();

      // Write object.
      const bool status = write(stream, pSimObject, formatMode);

      // Close file.
      stream.close();

      // Reset the compilation.
      resetCompilation();

      return status;
   }

   //-----------------------------------------------------------------------------

   SimObject* Taml::read(const char* pFilename)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_Read);

      // Sanity!
      AssertFatal(pFilename != NULL, "Cannot read from a NULL filename.");

      // Expand the file-name into the file-path buffer.
      Con::expandToolScriptFilename(mFilePathBuffer, sizeof(mFilePathBuffer), pFilename);

      FileStream stream;

      // File opened?
      if (!stream.open(mFilePathBuffer, Torque::FS::File::Read))
      {
         // No, so warn.
         Con::warnf("Taml::read() - Could not open filename '%s' for read.", mFilePathBuffer);
         return NULL;
      }

      // Get the file auto-format mode.
      const TamlFormatMode formatMode = getFileAutoFormatMode(mFilePathBuffer);

      // Reset the compilation.
      resetCompilation();

      // Write object.
      SimObject* pSimObject = read(stream, formatMode);

      // Close file.
      stream.close();

      // Reset the compilation.
      resetCompilation();

      // Did we generate an object?
      if (pSimObject == NULL)
      {
         // No, so warn.
         Con::warnf("Taml::read() - Failed to load an object from the file '%s'.", mFilePathBuffer);
      }
      else
      {
         pSimObject->onPostAdd();
      }

      return pSimObject;
   }

   //-----------------------------------------------------------------------------

   bool Taml::write(FileStream& stream, SimObject* pSimObject, const TamlFormatMode formatMode)
   {
      // Sanity!
      AssertFatal(pSimObject != NULL, "Cannot write a NULL object.");

      // Compile nodes.
      TamlWriteNode* pRootNode = compileObject(pSimObject);

      // Format appropriately.
      switch (formatMode)
      {
         /// Xml.
      case XmlFormat:
      {
         // Create writer.
         TamlXmlWriter writer(this);
         // Write.
         return writer.write(stream, pRootNode);
      }

      /// Binary.
      case BinaryFormat:
      {
         // Create writer.
         TamlBinaryWriter writer(this);

         // Write.
         return writer.write(stream, pRootNode, mBinaryCompression);
      }

      /// JSON.
      case JSONFormat:
      {
         // Create writer.
         //TamlJSONWriter writer( this );

         // Write.
         //return writer.write( stream, pRootNode );
         return NULL;
      }

      /// Invalid.
      case InvalidFormat:
      {
         // Warn.
         Con::warnf("Taml::write() - Cannot write, invalid format.");
         return false;
      }
      }

      // Warn.
      Con::warnf("Taml::write() - Unknown format.");
      return false;
   }

   //-----------------------------------------------------------------------------

   SimObject* Taml::read(FileStream& stream, const TamlFormatMode formatMode)
   {
      // Format appropriately.
      switch (formatMode)
      {
         /// Xml.
      case XmlFormat:
      {
         // Create reader.
         TamlXmlReader reader(this);

         // Read.
         return reader.read(stream);
      }

      /// Binary.
      case BinaryFormat:
      {
         // Create reader.
         TamlBinaryReader reader(this);

         // Read.
         return reader.read(stream);
      }

      /// JSON.
      case JSONFormat:
      {
         // Create reader.
         //TamlJSONReader reader( this );

         // Read.
         //return reader.read( stream );
         return NULL;
      }

      /// Invalid.
      case InvalidFormat:
      {
         // Warn.
         Con::warnf("Taml::read() - Cannot read, invalid format.");
         return NULL;
      }
      }

      // Warn.
      Con::warnf("Taml::read() - Unknown format.");
      return NULL;
   }

   //-----------------------------------------------------------------------------

   bool Taml::parse(const char* pFilename, TamlVisitor& visitor)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_Parse);

      // Sanity!
      AssertFatal(pFilename != NULL, "Taml::parse() - Cannot parse a NULL filename.");

      // Fetch format mode.
      const TamlFormatMode formatMode = getFileAutoFormatMode(pFilename);

      // Handle format mode appropriately.
      switch (formatMode)
      {
      case XmlFormat:
      {
         // Parse with the visitor.
         TamlXmlParser parser;

         // Are property changes needed but not supported?
         if (visitor.wantsPropertyChanges() && !parser.canChangeProperty())
         {
            // Yes, so warn.
            Con::warnf("Taml::parse() - Cannot parse '%s' file-type for filename '%s' as a specified visitor requires property changes which are not supported by the parser.", getFormatModeDescription(formatMode), pFilename);
            return false;
         }

         return parser.accept(pFilename, visitor);
      }

      case JSONFormat:
      {
         // Parse with the visitor.
         /*TamlJSONParser parser;

         // Are property changes needed but not supported?
         if ( visitor.wantsPropertyChanges() && !parser.canChangeProperty() )
         {
         // Yes, so warn.
         Con::warnf( "Taml::parse() - Cannot parse '%s' file-type for filename '%s' as a specified visitor requires property changes which are not supported by the parser.", getFormatModeDescription(formatMode), pFilename );
         return false;
         }

         return parser.accept( pFilename, visitor );       */
         return false;
      }

      case BinaryFormat:
      default:
         break;
      }

      // Warn.
      Con::warnf("Taml::parse() - Cannot parse '%s' file-type for filename '%s' as a required parser is not available.", getFormatModeDescription(formatMode), pFilename);
      return false;
   }

   //-----------------------------------------------------------------------------

   void Taml::resetCompilation(void)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_ResetCompilation);

      // Clear compiled nodes.
      for (typeNodeVector::iterator itr = mCompiledNodes.begin(); itr != mCompiledNodes.end(); ++itr)
      {
         // Fetch node.
         TamlWriteNode* pNode = (*itr);

         // Reset node.
         pNode->resetNode();

         // Delete node.
         delete pNode;
      }
      mCompiledNodes.clear();

      // Clear compiled objects.
      mCompiledObjects.clear();

      // Reset master node Id.
      mMasterNodeId = 0;
   }

   //-----------------------------------------------------------------------------

   Taml::TamlFormatMode Taml::getFileAutoFormatMode(const char* pFilename)
   {
      // Sanity!
      AssertFatal(pFilename != NULL, "Taml::getFileAutoFormatMode() - Cannot auto-format using a NULL filename.");

      // Is auto-format active?
      if (mAutoFormat)
      {
         // Yes, so fetch the extension lengths.
         const U32 xmlExtensionLength = dStrlen(mAutoFormatXmlExtension);
         const U32 binaryExtensionLength = dStrlen(mAutoFormatBinaryExtension);
         const U32 jsonExtensionLength = dStrlen(mAutoFormatJSONExtension);

         // Fetch filename length.
         const U32 filenameLength = dStrlen(pFilename);

         // Fetch end of filename,
         const char* pEndOfFilename = pFilename + filenameLength;

         // Check for the XML format.
         if (xmlExtensionLength <= filenameLength && dStricmp(pEndOfFilename - xmlExtensionLength, mAutoFormatXmlExtension) == 0)
            return Taml::XmlFormat;

         // Check for the Binary format.
         if (binaryExtensionLength <= filenameLength && dStricmp(pEndOfFilename - xmlExtensionLength, mAutoFormatBinaryExtension) == 0)
            return Taml::BinaryFormat;

         // Check for the XML format.
         if (jsonExtensionLength <= filenameLength && dStricmp(pEndOfFilename - jsonExtensionLength, mAutoFormatJSONExtension) == 0)
            return Taml::JSONFormat;
      }

      // Use the explicitly specified format mode.
      return mFormatMode;
   }

   //-----------------------------------------------------------------------------

   TamlWriteNode* Taml::compileObject(SimObject* pSimObject, const bool forceId)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompileObject);

      // Sanity!
      AssertFatal(pSimObject != NULL, "Taml::compileObject() - Cannot compile a NULL object.");

      // Fetch object Id.
      const SimObjectId objectId = pSimObject->getId();

      // Find a previously compiled node.
      typeCompiledHash::Iterator compiledItr = mCompiledObjects.find(objectId);

      // Have we already compiled this?
      if (compiledItr != mCompiledObjects.end())
      {
         // Yes, so sanity!
         AssertFatal(mCompiledNodes.size() != 0, "Taml::compileObject() - Found a compiled node at the root.");

         // Yes, so fetch node.
         TamlWriteNode* compiledNode = compiledItr->value;

         // Is a reference Id already present?
         if (compiledNode->mRefId == 0)
         {
            // No, so allocate one.
            compiledNode->mRefId = ++mMasterNodeId;
         }

         // Create write node.
         TamlWriteNode* pNewNode = new TamlWriteNode();
         pNewNode->set(pSimObject);

         // Set reference node.
         pNewNode->mRefToNode = compiledNode;

         // Push new node.
         mCompiledNodes.push_back(pNewNode);

         return pNewNode;
      }

      // No, so create write node.
      TamlWriteNode* pNewNode = new TamlWriteNode();
      pNewNode->set(pSimObject);

      // Is an Id being forced for this object?
      if (forceId)
      {
         // Yes, so allocate one.
         pNewNode->mRefId = ++mMasterNodeId;
      }

      // Push new node.
      mCompiledNodes.push_back(pNewNode);

      // Insert compiled object.
      mCompiledObjects.insertUnique(objectId, pNewNode);

      // Are there any Taml callbacks?
      if (pNewNode->mpTamlCallbacks != NULL)
      {
         // Yes, so call it.
         tamlPreWrite(pNewNode->mpTamlCallbacks);
      }

      // Compile static and dynamic fields.
      compileStaticFields(pNewNode);
      compileDynamicFields(pNewNode);

      // Compile children.
      compileChildren(pNewNode);

      // Compile custom state.
      compileCustomState(pNewNode);

      // Are there any Taml callbacks?
      if (pNewNode->mpTamlCallbacks != NULL)
      {
         // Yes, so call it.
         tamlPostWrite(pNewNode->mpTamlCallbacks);
      }

      return pNewNode;
   }

   //-----------------------------------------------------------------------------

   void Taml::compileStaticFields(TamlWriteNode* pTamlWriteNode)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompileStaticFields);

      // Sanity!
      AssertFatal(pTamlWriteNode != NULL, "Cannot compile static fields on a NULL node.");
      AssertFatal(pTamlWriteNode->mpSimObject != NULL, "Cannot compile static fields on a node with no object.");

      // Fetch object.
      SimObject* pSimObject = pTamlWriteNode->mpSimObject;

      // Fetch field list.
      const AbstractClassRep::FieldList& fieldList = pSimObject->getFieldList();

      // Fetch field count.
      const U32 fieldCount = fieldList.size();

      // Iterate fields.
      U8 arrayDepth = 0;
      TamlCustomNode* currentArrayNode;
      for (U32 index = 0; index < fieldCount; ++index)
      {
         // Fetch field.
         const AbstractClassRep::Field* pField = &fieldList[index];

         // Ignore if field not appropriate.
         if (pField->type == AbstractClassRep::DeprecatedFieldType ||
            pField->type == AbstractClassRep::StartGroupFieldType ||
            pField->type == AbstractClassRep::EndGroupFieldType)
            continue;

         if (pField->type == AbstractClassRep::StartArrayFieldType)
         {
            TamlCustomNodes& pCustomNodes = pTamlWriteNode->mCustomNodes;
            currentArrayNode = pCustomNodes.addNode(pField->pGroupname);
            for (U16 idx = 0; idx < pField->elementCount; idx++)
               currentArrayNode->addNode(pField->pFieldname);
            arrayDepth++;
            continue;
         }

         if (pField->type == AbstractClassRep::EndArrayFieldType)
         {
            arrayDepth--;
            continue;
         }

         if (arrayDepth == 0 && pField->elementCount > 1)
         {
            TamlCustomNodes& pCustomNodes = pTamlWriteNode->mCustomNodes;
            char* niceFieldName = const_cast<char *>(pField->pFieldname);
            niceFieldName[0] = dToupper(niceFieldName[0]);
            String str_niceFieldName = String(niceFieldName);
            currentArrayNode = pCustomNodes.addNode(str_niceFieldName + "s");
            for (U16 idx = 0; idx < pField->elementCount; idx++)
               currentArrayNode->addNode(str_niceFieldName);
         }

         // Fetch fieldname.
         StringTableEntry fieldName = StringTable->insert(pField->pFieldname);

         // Fetch element count.
         const U32 elementCount = pField->elementCount;

         // Skip if the field should not be written.
         // For now, we only deal with non-array fields.
         if (elementCount == 1 &&
            pField->setDataFn != NULL &&
            (!getWriteDefaults() && pField->writeDataFn(pSimObject, fieldName) == false))
            continue;

         // Iterate elements.
         for (U32 elementIndex = 0; elementIndex < elementCount; ++elementIndex)
         {
            char indexBuffer[8];
            dSprintf(indexBuffer, 8, "%d", elementIndex);

            // Fetch object field value.
            const char* pFieldValue = pSimObject->getPrefixedDataField(fieldName, indexBuffer);

            if (!pFieldValue)
               pFieldValue = StringTable->EmptyString();

            if (pField->type == TypeBool)
               pFieldValue = dAtob(pFieldValue) ? "true" : "false";

            U32 nBufferSize = dStrlen(pFieldValue) + 1;
            FrameTemp<char> valueCopy(nBufferSize);
            dStrcpy((char *)valueCopy, pFieldValue, nBufferSize);

            // Skip if field should not be written.
            if (!pSimObject->writeField(fieldName, valueCopy))
               continue;

            // Reassign field value.
            pFieldValue = valueCopy;

            // Detect and collapse relative path information
            char fnBuf[1024];
            if ((S32)pField->type == TypeFilename)
            {
               Con::collapseScriptFilename(fnBuf, 1024, pFieldValue);
               pFieldValue = fnBuf;
            }

            // Save field/value.
            if (arrayDepth > 0 || pField->elementCount > 1)
               currentArrayNode->getChildren()[elementIndex]->addField(fieldName, pFieldValue);
            else
            {
               TamlWriteNode::FieldValuePair* pFieldValuePair = new TamlWriteNode::FieldValuePair(fieldName, pFieldValue);
               pTamlWriteNode->mFields.push_back(pFieldValuePair);
            }
         }
      }
   }

   //-----------------------------------------------------------------------------

   static S32 QSORT_CALLBACK compareFieldEntries(const void* a, const void* b)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompareFieldEntries);

      SimFieldDictionary::Entry *fa = *((SimFieldDictionary::Entry **)a);
      SimFieldDictionary::Entry *fb = *((SimFieldDictionary::Entry **)b);
      return dStricmp(fa->slotName, fb->slotName);
   }

   //-----------------------------------------------------------------------------

   void Taml::compileDynamicFields(TamlWriteNode* pTamlWriteNode)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompileDynamicFields);

      // Sanity!
      AssertFatal(pTamlWriteNode != NULL, "Cannot compile dynamic fields on a NULL node.");
      AssertFatal(pTamlWriteNode->mpSimObject != NULL, "Cannot compile dynamic fields on a node with no object.");

      // Fetch object.
      SimObject* pSimObject = pTamlWriteNode->mpSimObject;

      // Fetch field dictionary.
      SimFieldDictionary* pFieldDictionary = pSimObject->getFieldDictionary();

      // Ignore if not writing dynamic fields.
      if (!pFieldDictionary || !pSimObject->getCanSaveDynamicFields())
         return;

      // Fetch field list.
      const AbstractClassRep::FieldList& fieldList = pSimObject->getFieldList();

      // Fetch field count.
      const U32 fieldCount = fieldList.size();

      Vector<SimFieldDictionary::Entry*> dynamicFieldList(__FILE__, __LINE__);

      // Ensure the dynamic field doesn't conflict with static field.
      for (U32 hashIndex = 0; hashIndex < SimFieldDictionary::HashTableSize; ++hashIndex)
      {
         for (SimFieldDictionary::Entry* pEntry = pFieldDictionary->mHashTable[hashIndex]; pEntry; pEntry = pEntry->next)
         {
            // Iterate static fields.
            U32 fieldIndex;
            for (fieldIndex = 0; fieldIndex < fieldCount; ++fieldIndex)
            {
               if (fieldList[fieldIndex].pFieldname == pEntry->slotName)
                  break;
            }

            // Skip if found.
            if (fieldIndex != (U32)fieldList.size())
               continue;

            // Skip if not writing field.
            if (!pSimObject->writeField(pEntry->slotName, pEntry->value))
               continue;

            dynamicFieldList.push_back(pEntry);
         }
      }

      // Sort Entries to prevent version control conflicts
      if (dynamicFieldList.size() > 1)
         dQsort(dynamicFieldList.address(), dynamicFieldList.size(), sizeof(SimFieldDictionary::Entry*), compareFieldEntries);

      // Save the fields.
      for (Vector<SimFieldDictionary::Entry*>::iterator entryItr = dynamicFieldList.begin(); entryItr != dynamicFieldList.end(); ++entryItr)
      {
         // Fetch entry.
         SimFieldDictionary::Entry* pEntry = *entryItr;

         // Save field/value.
         TamlWriteNode::FieldValuePair*  pFieldValuePair = new TamlWriteNode::FieldValuePair(pEntry->slotName, pEntry->value);
         pTamlWriteNode->mFields.push_back(pFieldValuePair);
      }
   }

   //-----------------------------------------------------------------------------

   void Taml::compileChildren(TamlWriteNode* pTamlWriteNode)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompileChildren);

      // Sanity!
      AssertFatal(pTamlWriteNode != NULL, "Cannot compile children on a NULL node.");
      AssertFatal(pTamlWriteNode->mpSimObject != NULL, "Cannot compile children on a node with no object.");

      // Fetch object.
      SimObject* pSimObject = pTamlWriteNode->mpSimObject;

      // Fetch the Taml children.
      TamlChildren* pChildren = dynamic_cast<TamlChildren*>(pSimObject);

      // Finish if object does not contain Taml children.
      if (pChildren == NULL || pChildren->getTamlChildCount() == 0)
         return;

      // Create children vector.
      pTamlWriteNode->mChildren = new typeNodeVector();

      // Fetch the child count.
      const U32 childCount = pChildren->getTamlChildCount();

      // Iterate children.
      for (U32 childIndex = 0; childIndex < childCount; childIndex++)
      {
         // Compile object.
         TamlWriteNode* pChildTamlWriteNode = compileObject(pChildren->getTamlChild(childIndex));

         // Save node.
         pTamlWriteNode->mChildren->push_back(pChildTamlWriteNode);
      }
   }

   //-----------------------------------------------------------------------------

   void Taml::compileCustomState(TamlWriteNode* pTamlWriteNode)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CompileCustomProperties);

      // Sanity!
      AssertFatal(pTamlWriteNode != NULL, "Cannot compile custom state on a NULL node.");
      AssertFatal(pTamlWriteNode->mpSimObject != NULL, "Cannot compile custom state on a node with no object.");

      // Fetch the custom node on the write node.
      TamlCustomNodes& customNodes = pTamlWriteNode->mCustomNodes;

      // Are there any Taml callbacks?
      if (pTamlWriteNode->mpTamlCallbacks != NULL)
      {
         // Yes, so call it.
         tamlCustomWrite(pTamlWriteNode->mpTamlCallbacks, customNodes);
      }

      // Fetch custom nodes.
      const TamlCustomNodeVector& nodes = customNodes.getNodes();

      // Finish if no custom nodes to process.
      if (nodes.size() == 0)
         return;

      // Iterate custom properties.
      for (TamlCustomNodeVector::const_iterator customNodesItr = nodes.begin(); customNodesItr != nodes.end(); ++customNodesItr)
      {
         // Fetch the custom node.
         TamlCustomNode* pCustomNode = *customNodesItr;

         // Compile custom node state.
         compileCustomNodeState(pCustomNode);
      }
   }

   //-----------------------------------------------------------------------------

   void Taml::compileCustomNodeState(TamlCustomNode* pCustomNode)
   {
      // Sanity!
      AssertFatal(pCustomNode != NULL, "Taml: Cannot compile NULL custom node state.");

      // Fetch children.
      const TamlCustomNodeVector& children = pCustomNode->getChildren();

      // Fetch proxy object.
      SimObject* pProxyObject = pCustomNode->getProxyObject<SimObject>(false);

      // Do we have a proxy object?
      if (pProxyObject != NULL)
      {
         // Yes, so sanity!
         AssertFatal(children.size() == 0, "Taml: Cannot compile a proxy object on a custom node that has children.");

         // Yes, so compile it.
         // NOTE: We force an Id for custom compiled objects so we guarantee an Id.  The reason for this is fairly
         // weak in that the XML parser currently has no way of distinguishing between a compiled object node
         // and a custom node.  If the node has an Id or an Id-Ref then it's obviously an object and should be parsed as such.
         pCustomNode->setWriteNode(compileObject(pProxyObject, true));
         return;
      }

      // Finish if no children.
      if (children.size() == 0)
         return;

      // Iterate children.
      for (TamlCustomNodeVector::const_iterator childItr = children.begin(); childItr != children.end(); ++childItr)
      {
         // Fetch shape node.
         TamlCustomNode* pChildNode = *childItr;

         // Compile the child.
         compileCustomNodeState(pChildNode);
      }
   }

   //-----------------------------------------------------------------------------

   SimObject* Taml::createType(StringTableEntry typeName, const Taml* pTaml, const char* pProgenitorSuffix)
   {
      // Debug Profiling.
      PROFILE_SCOPE(Taml_CreateType);

      typedef HashTable<StringTableEntry, AbstractClassRep*> typeClassHash;
      static typeClassHash mClassMap;

      // Sanity!
      AssertFatal(typeName != NULL, "Taml: Type cannot be NULL");

      // Find type.
      typeClassHash::Iterator typeItr = mClassMap.find(typeName);

      // Found type?
      if (typeItr == mClassMap.end())
      {
         // No, so find type.
         AbstractClassRep* pClassRep = AbstractClassRep::getClassList();
         while (pClassRep)
         {
            // Is this the type?
            if (dStricmp(pClassRep->getClassName(), typeName) == 0)
            {
               // Yes, so insert it.
               typeItr = mClassMap.insertUnique(typeName, pClassRep);
               break;
            }

            // Next type.
            pClassRep = pClassRep->getNextClass();
         }

         // Did we find the type?
         if (typeItr == mClassMap.end())
         {
            // No, so warn and fail.
            Con::warnf("Taml: Failed to create type '%s' as such a registered type could not be found.", typeName);
            return NULL;
         }
      }

      // Create the object.
      ConsoleObject* pConsoleObject = typeItr->value->create();

      // NOTE: It is important that we don't register the object here as many objects rely on the fact that
      // fields are set prior to the object being registered.  Registering here will invalid those assumptions.

      // Fetch the SimObject.
      SimObject* pSimObject = dynamic_cast<SimObject*>(pConsoleObject);

      // Was it a SimObject?
      if (pSimObject == NULL)
      {
         // No, so warn.
         Con::warnf("Taml: Failed to create type '%s' as it is not a SimObject.", typeName);

         // Destroy object and fail.
         delete pConsoleObject;
         return NULL;
      }

      // Are we updating the file-progenitor?
      if (pTaml->getProgenitorUpdate())
      {
         // Yes, so do we have a progenitor suffix?
         if (pProgenitorSuffix == NULL)
         {
            // No, so just set it to the progenitor file.
            pSimObject->setProgenitorFile(pTaml->getFilePathBuffer());
         }
         else
         {
            // Yes, so format the progenitor buffer.
            char progenitorBuffer[2048];
            dSprintf(progenitorBuffer, sizeof(progenitorBuffer), "%s,%s", pTaml->getFilePathBuffer(), pProgenitorSuffix);

            // Set the progenitor file.
            pSimObject->setProgenitorFile(progenitorBuffer);
         }
      }

      return pSimObject;
   }

   //-----------------------------------------------------------------------------

   bool Taml::generateTamlSchema()
   {
      // Fetch any TAML Schema file reference.
      const char* pTamlSchemaFile = Con::getVariable(TAML_SCHEMA_VARIABLE);

      // Do we have a schema file reference?
      if (pTamlSchemaFile == NULL || *pTamlSchemaFile == 0)
      {
         // No, so warn.
         Con::warnf("Taml::generateTamlSchema() - Cannot write a TAML schema as no schema variable is set ('%s').", TAML_SCHEMA_VARIABLE);
         return false;
      }

      // Expand the file-name into the file-path buffer.
      char filePathBuffer[1024];
      Con::expandToolScriptFilename(filePathBuffer, sizeof(filePathBuffer), pTamlSchemaFile);

      FileStream stream;

      // File opened?
      /*if ( !stream.open( filePathBuffer, Torque::FS::File::Write ) )
      {
      // No, so warn.
      Con::warnf("Taml::GenerateTamlSchema() - Could not open filename '%s' for write.", filePathBuffer );
      return false;
      }*/

      // Create document.
      TiXmlDocument schemaDocument;

      // Add declaration.
      TiXmlDeclaration schemaDeclaration("1.0", "iso-8859-1", "no");
      schemaDocument.InsertEndChild(schemaDeclaration);

      // Add schema element.
      TiXmlElement* pSchemaElement = new TiXmlElement("xs:schema");
      pSchemaElement->SetAttribute("xmlns:xs", "http://www.w3.org/2001/XMLSchema");
      schemaDocument.LinkEndChild(pSchemaElement);

      // Fetch class-rep root.
      AbstractClassRep* pRootType = AbstractClassRep::getClassList();

      // Fetch SimObject class rep.
      AbstractClassRep* pSimObjectType = AbstractClassRep::findClassRep("SimObject");
      // Sanity!
      AssertFatal(pSimObjectType != NULL, "Taml::GenerateTamlSchema() - Could not find SimObject class rep.");

      // Reset scratch state.
      char buffer[1024];
      HashTable<AbstractClassRep*, StringTableEntry> childGroups;

      // *************************************************************
      // Generate console type elements.
      // *************************************************************

      // Vector2.
      TiXmlComment* pVector2Comment = new TiXmlComment("Vector2 Console Type");
      pSchemaElement->LinkEndChild(pVector2Comment);
      TiXmlElement* pVector2TypeElement = new TiXmlElement("xs:simpleType");
      pVector2TypeElement->SetAttribute("name", "Vector2_ConsoleType");
      pSchemaElement->LinkEndChild(pVector2TypeElement);
      TiXmlElement* pVector2ElementA = new TiXmlElement("xs:restriction");
      pVector2ElementA->SetAttribute("base", "xs:string");
      pVector2TypeElement->LinkEndChild(pVector2ElementA);
      TiXmlElement* pVector2ElementB = new TiXmlElement("xs:pattern");
      pVector2ElementB->SetAttribute("value", "([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b");
      pVector2ElementA->LinkEndChild(pVector2ElementB);

      // Point2F.
      TiXmlComment* pPoint2FComment = new TiXmlComment("Point2F Console Type");
      pSchemaElement->LinkEndChild(pPoint2FComment);
      TiXmlElement* pPoint2FTypeElement = new TiXmlElement("xs:simpleType");
      pPoint2FTypeElement->SetAttribute("name", "Point2F_ConsoleType");
      pSchemaElement->LinkEndChild(pPoint2FTypeElement);
      TiXmlElement* pPoint2FElementA = new TiXmlElement("xs:restriction");
      pPoint2FElementA->SetAttribute("base", "xs:string");
      pPoint2FTypeElement->LinkEndChild(pPoint2FElementA);
      TiXmlElement* pPoint2FElementB = new TiXmlElement("xs:pattern");
      pPoint2FElementB->SetAttribute("value", "([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b");
      pPoint2FElementA->LinkEndChild(pPoint2FElementB);

      // Point2I.
      TiXmlComment* pPoint2IComment = new TiXmlComment("Point2I Console Type");
      pSchemaElement->LinkEndChild(pPoint2IComment);
      TiXmlElement* pPoint2ITypeElement = new TiXmlElement("xs:simpleType");
      pPoint2ITypeElement->SetAttribute("name", "Point2I_ConsoleType");
      pSchemaElement->LinkEndChild(pPoint2ITypeElement);
      TiXmlElement* pPoint2IElementA = new TiXmlElement("xs:restriction");
      pPoint2IElementA->SetAttribute("base", "xs:string");
      pPoint2ITypeElement->LinkEndChild(pPoint2IElementA);
      TiXmlElement* pPoint2IElementB = new TiXmlElement("xs:pattern");
      pPoint2IElementB->SetAttribute("value", "[-]?[0-9]* [-]?[0-9]*");
      pPoint2IElementA->LinkEndChild(pPoint2IElementB);

      // b2AABB.
      TiXmlComment* pb2AABBComment = new TiXmlComment("b2AABB Console Type");
      pSchemaElement->LinkEndChild(pb2AABBComment);
      TiXmlElement* pb2AABBTypeElement = new TiXmlElement("xs:simpleType");
      pb2AABBTypeElement->SetAttribute("name", "b2AABB_ConsoleType");
      pSchemaElement->LinkEndChild(pb2AABBTypeElement);
      TiXmlElement* pb2AABBElementA = new TiXmlElement("xs:restriction");
      pb2AABBElementA->SetAttribute("base", "xs:string");
      pb2AABBTypeElement->LinkEndChild(pb2AABBElementA);
      TiXmlElement* pb2AABBElementB = new TiXmlElement("xs:pattern");
      pb2AABBElementB->SetAttribute("value", "([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b");
      pb2AABBElementA->LinkEndChild(pb2AABBElementB);

      // RectI.
      TiXmlComment* pRectIComment = new TiXmlComment("RectI Console Type");
      pSchemaElement->LinkEndChild(pRectIComment);
      TiXmlElement* pRectITypeElement = new TiXmlElement("xs:simpleType");
      pRectITypeElement->SetAttribute("name", "RectI_ConsoleType");
      pSchemaElement->LinkEndChild(pRectITypeElement);
      TiXmlElement* pRectIElementA = new TiXmlElement("xs:restriction");
      pRectIElementA->SetAttribute("base", "xs:string");
      pRectITypeElement->LinkEndChild(pRectIElementA);
      TiXmlElement* pRectIElementB = new TiXmlElement("xs:pattern");
      pRectIElementB->SetAttribute("value", "[-]?[0-9]* [-]?[0-9]* [-]?[0-9]* [-]?[0-9]*");
      pRectIElementA->LinkEndChild(pRectIElementB);

      // RectF.
      TiXmlComment* pRectFComment = new TiXmlComment("RectF Console Type");
      pSchemaElement->LinkEndChild(pRectFComment);
      TiXmlElement* pRectFTypeElement = new TiXmlElement("xs:simpleType");
      pRectFTypeElement->SetAttribute("name", "RectF_ConsoleType");
      pSchemaElement->LinkEndChild(pRectFTypeElement);
      TiXmlElement* pRectFElementA = new TiXmlElement("xs:restriction");
      pRectFElementA->SetAttribute("base", "xs:string");
      pRectFTypeElement->LinkEndChild(pRectFElementA);
      TiXmlElement* pRectFElementB = new TiXmlElement("xs:pattern");
      pRectFElementB->SetAttribute("value", "(\\b[-]?(b[0-9]+)?\\.)?[0-9]+\\b");
      pRectFElementA->LinkEndChild(pRectFElementB);

      // AssetId.
      TiXmlComment* pAssetIdComment = new TiXmlComment("AssetId Console Type");
      pSchemaElement->LinkEndChild(pAssetIdComment);
      TiXmlElement* pAssetIdTypeElement = new TiXmlElement("xs:simpleType");
      pAssetIdTypeElement->SetAttribute("name", "AssetId_ConsoleType");
      pSchemaElement->LinkEndChild(pAssetIdTypeElement);
      TiXmlElement* pAssetIdElementA = new TiXmlElement("xs:restriction");
      pAssetIdElementA->SetAttribute("base", "xs:string");
      pAssetIdTypeElement->LinkEndChild(pAssetIdElementA);
      TiXmlElement* pAssetIdElementB = new TiXmlElement("xs:pattern");
      dSprintf(buffer, sizeof(buffer), "(%s)?\\b[a-zA-Z0-9]+\\b%s\\b[a-zA-Z0-9]+\\b", ASSET_ID_FIELD_PREFIX, ASSET_SCOPE_TOKEN);
      pAssetIdElementB->SetAttribute("value", buffer);
      pAssetIdElementA->LinkEndChild(pAssetIdElementB);

      // Color Enums.
      TiXmlComment* pColorEnumsComment = new TiXmlComment("Color Enums");
      pSchemaElement->LinkEndChild(pColorEnumsComment);
      TiXmlElement* pColorEnumsTypeElement = new TiXmlElement("xs:simpleType");
      pColorEnumsTypeElement->SetAttribute("name", "Color_Enums");
      pSchemaElement->LinkEndChild(pColorEnumsTypeElement);
      TiXmlElement* pColorEnumsRestrictionElement = new TiXmlElement("xs:restriction");
      pColorEnumsRestrictionElement->SetAttribute("base", "xs:string");
      pColorEnumsTypeElement->LinkEndChild(pColorEnumsRestrictionElement);
      const S32 ColorEnumsCount = StockColor::getCount();
      for (S32 index = 0; index < ColorEnumsCount; ++index)
      {
         // Add enumeration element.
         TiXmlElement* pColorEnumsAttributeEnumerationElement = new TiXmlElement("xs:enumeration");
         pColorEnumsAttributeEnumerationElement->SetAttribute("value", StockColor::getColorItem(index)->getColorName());
         pColorEnumsRestrictionElement->LinkEndChild(pColorEnumsAttributeEnumerationElement);
      }

      // LinearColorF.
      TiXmlComment* pColorFValuesComment = new TiXmlComment("LinearColorF Values");
      pSchemaElement->LinkEndChild(pColorFValuesComment);
      TiXmlElement* pColorFValuesTypeElement = new TiXmlElement("xs:simpleType");
      pColorFValuesTypeElement->SetAttribute("name", "ColorF_Values");
      pSchemaElement->LinkEndChild(pColorFValuesTypeElement);
      TiXmlElement* pColorFValuesElementA = new TiXmlElement("xs:restriction");
      pColorFValuesElementA->SetAttribute("base", "xs:string");
      pColorFValuesTypeElement->LinkEndChild(pColorFValuesElementA);
      TiXmlElement* pColorFValuesElementB = new TiXmlElement("xs:pattern");
      pColorFValuesElementB->SetAttribute("value", "([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b ([-]?(\\b[0-9]+)?\\.)?[0-9]+\\b");
      pColorFValuesElementA->LinkEndChild(pColorFValuesElementB);

      TiXmlComment* pColorFComment = new TiXmlComment("LinearColorF Console Type");
      pSchemaElement->LinkEndChild(pColorFComment);
      TiXmlElement* pColorFTypeElement = new TiXmlElement("xs:simpleType");
      pColorFTypeElement->SetAttribute("name", "ColorF_ConsoleType");
      pSchemaElement->LinkEndChild(pColorFTypeElement);
      TiXmlElement* pColorFUnionElement = new TiXmlElement("xs:union");
      pColorFUnionElement->SetAttribute("memberTypes", "ColorF_Values Color_Enums");
      pColorFTypeElement->LinkEndChild(pColorFUnionElement);

      // ColorI.
      TiXmlComment* pColorIValuesComment = new TiXmlComment("ColorI Values");
      pSchemaElement->LinkEndChild(pColorIValuesComment);
      TiXmlElement* pColorIValuesTypeElement = new TiXmlElement("xs:simpleType");
      pColorIValuesTypeElement->SetAttribute("name", "ColorI_Values");
      pSchemaElement->LinkEndChild(pColorIValuesTypeElement);
      TiXmlElement* pColorIValuesElementA = new TiXmlElement("xs:restriction");
      pColorIValuesElementA->SetAttribute("base", "xs:string");
      pColorIValuesTypeElement->LinkEndChild(pColorIValuesElementA);
      TiXmlElement* pColorIValuesElementB = new TiXmlElement("xs:pattern");
      pColorIValuesElementB->SetAttribute("value", "[-]?[0-9]* [-]?[0-9]* [-]?[0-9]* [-]?[0-9]*");
      pColorIValuesElementA->LinkEndChild(pColorIValuesElementB);

      TiXmlComment* pColorIComment = new TiXmlComment("ColorI Console Type");
      pSchemaElement->LinkEndChild(pColorIComment);
      TiXmlElement* pColorITypeElement = new TiXmlElement("xs:simpleType");
      pColorITypeElement->SetAttribute("name", "ColorI_ConsoleType");
      pSchemaElement->LinkEndChild(pColorITypeElement);
      TiXmlElement* pColorIUnionElement = new TiXmlElement("xs:union");
      pColorIUnionElement->SetAttribute("memberTypes", "ColorI_Values Color_Enums");
      pColorITypeElement->LinkEndChild(pColorIUnionElement);

      // *************************************************************
      // Generate engine type elements.
      // *************************************************************

      // Generate the engine type elements.
      TiXmlComment* tComment = new TiXmlComment("Type Elements");
      pSchemaElement->LinkEndChild(tComment);
      for (AbstractClassRep* pType = pRootType; pType != NULL; pType = pType->getNextClass())
      {
         // Add type.
         TiXmlElement* pTypeElement = new TiXmlElement("xs:element");
         pTypeElement->SetAttribute("name", pType->getClassName());
         dSprintf(buffer, sizeof(buffer), "%s_Type", pType->getClassName());
         pTypeElement->SetAttribute("type", buffer);
         pSchemaElement->LinkEndChild(pTypeElement);
      }

      // *************************************************************
      // Generate the engine complex types.
      // *************************************************************
      for (AbstractClassRep* pType = pRootType; pType != NULL; pType = pType->getNextClass())
      {
         // Add complex type comment.
         dSprintf(buffer, sizeof(buffer), " %s Type ", pType->getClassName());
         TiXmlComment* ctComment = new TiXmlComment(buffer);
         pSchemaElement->LinkEndChild(ctComment);

         // Add complex type.
         TiXmlElement* pComplexTypeElement = new TiXmlElement("xs:complexType");
         dSprintf(buffer, sizeof(buffer), "%s_Type", pType->getClassName());
         pComplexTypeElement->SetAttribute("name", buffer);
         pSchemaElement->LinkEndChild(pComplexTypeElement);

         // Add sequence.
         TiXmlElement* pSequenceElement = new TiXmlElement("xs:sequence");
         pComplexTypeElement->LinkEndChild(pSequenceElement);

         // Fetch container child class.
         AbstractClassRep* pContainerChildClass = pType->getContainerChildClass(true);

         // Is the type allowed children?
         if (pContainerChildClass != NULL)
         {
            // Yes, so add choice element.
            TiXmlElement* pChoiceElement = new TiXmlElement("xs:choice");
            pChoiceElement->SetAttribute("minOccurs", 0);
            pChoiceElement->SetAttribute("maxOccurs", "unbounded");
            pSequenceElement->LinkEndChild(pChoiceElement);

            // Find child group.
            HashTable<AbstractClassRep*, StringTableEntry>::Iterator childGroupItr = childGroups.find(pContainerChildClass);

            // Does the group exist?
            if (childGroupItr == childGroups.end())
            {
               // No, so format group name.
               dSprintf(buffer, sizeof(buffer), "%s_ChildrenTypes", pContainerChildClass->getClassName());

               // Insert into child group hash.
               childGroupItr = childGroups.insertUnique(pContainerChildClass, StringTable->insert(buffer));

               // Add the group.
               TiXmlElement* pChildrenGroupElement = new TiXmlElement("xs:group");
               pChildrenGroupElement->SetAttribute("name", buffer);
               pSchemaElement->LinkEndChild(pChildrenGroupElement);

               // Add choice element.
               TiXmlElement* pChildreGroupChoiceElement = new TiXmlElement("xs:choice");
               pChildrenGroupElement->LinkEndChild(pChildreGroupChoiceElement);

               // Add choice members.
               for (AbstractClassRep* pChoiceType = pRootType; pChoiceType != NULL; pChoiceType = pChoiceType->getNextClass())
               {
                  // Skip if not derived from the container child class.
                  if (!pChoiceType->isClass(pContainerChildClass))
                     continue;

                  // Add choice member.
                  TiXmlElement* pChildrenMemberElement = new TiXmlElement("xs:element");
                  pChildrenMemberElement->SetAttribute("name", pChoiceType->getClassName());
                  dSprintf(buffer, sizeof(buffer), "%s_Type", pChoiceType->getClassName());
                  pChildrenMemberElement->SetAttribute("type", buffer);
                  pChildreGroupChoiceElement->LinkEndChild(pChildrenMemberElement);
               }

            }

            // Reference the child group.
            TiXmlElement* pChoiceGroupReferenceElement = new TiXmlElement("xs:group");
            pChoiceGroupReferenceElement->SetAttribute("ref", childGroupItr->value);
            pChoiceGroupReferenceElement->SetAttribute("minOccurs", 0);
            pChoiceElement->LinkEndChild(pChoiceGroupReferenceElement);
         }

         // Generate the custom Taml schema.
         for (AbstractClassRep* pCustomSchemaType = pType; pCustomSchemaType != NULL; pCustomSchemaType = pCustomSchemaType->getParentClass())
         {
            // Fetch the types custom TAML schema function.
            AbstractClassRep::WriteCustomTamlSchema customSchemaFn = pCustomSchemaType->getCustomTamlSchema();

            // Skip if no function avilable.
            if (customSchemaFn == NULL)
               continue;

            // Call schema generation function.
            customSchemaFn(pType, pSequenceElement);
         }

         // Generate field attribute group.
         TiXmlElement* pFieldAttributeGroupElement = new TiXmlElement("xs:attributeGroup");
         dSprintf(buffer, sizeof(buffer), "%s_Fields", pType->getClassName());
         pFieldAttributeGroupElement->SetAttribute("name", buffer);
         pSchemaElement->LinkEndChild(pFieldAttributeGroupElement);

         // Fetch field list.
         const AbstractClassRep::FieldList& fields = pType->mFieldList;

         // Fetcj field count.
         const S32 fieldCount = fields.size();

         // Iterate static fields (in reverse as most types are organized from the root-fields up).
         for (S32 index = fieldCount - 1; index > 0; --index)
         {
            // Fetch field.
            const AbstractClassRep::Field& field = fields[index];

            // Skip if not a data field.
            if (field.type == AbstractClassRep::DeprecatedFieldType ||
               field.type == AbstractClassRep::StartGroupFieldType ||
               field.type == AbstractClassRep::EndGroupFieldType)
               continue;

            // Skip if the field root is not this type.
            if (pType->findFieldRoot(field.pFieldname) != pType)
               continue;

            // Add attribute element.
            TiXmlElement* pAttributeElement = new TiXmlElement("xs:attribute");
            pAttributeElement->SetAttribute("name", field.pFieldname);

            // Handle the console type appropriately.
            const S32 fieldType = (S32)field.type;

            /*
            // Is the field an enumeration?
            if ( fieldType == TypeEnum )
            {
            // Yes, so add attribute type.
            TiXmlElement* pAttributeSimpleTypeElement = new TiXmlElement( "xs:simpleType" );
            pAttributeElement->LinkEndChild( pAttributeSimpleTypeElement );

            // Add restriction element.
            TiXmlElement* pAttributeRestrictionElement = new TiXmlElement( "xs:restriction" );
            pAttributeRestrictionElement->SetAttribute( "base", "xs:string" );
            pAttributeSimpleTypeElement->LinkEndChild( pAttributeRestrictionElement );

            // Yes, so fetch enumeration count.
            const S32 enumCount = field.table->size;

            // Iterate enumeration.
            for( S32 index = 0; index < enumCount; ++index )
            {
            // Add enumeration element.
            TiXmlElement* pAttributeEnumerationElement = new TiXmlElement( "xs:enumeration" );
            pAttributeEnumerationElement->SetAttribute( "value", field.table->table[index].label );
            pAttributeRestrictionElement->LinkEndChild( pAttributeEnumerationElement );
            }
            }
            else
            {*/
            // No, so assume it's a string type initially.
            const char* pFieldTypeDescription = "xs:string";

            // Handle known types.
            if (fieldType == TypeF32)
            {
               pFieldTypeDescription = "xs:float";
            }
            else if (fieldType == TypeS8 || fieldType == TypeS32)
            {
               pFieldTypeDescription = "xs:int";
            }
            else if (fieldType == TypeBool || fieldType == TypeFlag)
            {
               pFieldTypeDescription = "xs:boolean";
            }
            else if (fieldType == TypePoint2F)
            {
               pFieldTypeDescription = "Point2F_ConsoleType";
            }
            else if (fieldType == TypePoint2I)
            {
               pFieldTypeDescription = "Point2I_ConsoleType";
            }
            else if (fieldType == TypeRectI)
            {
               pFieldTypeDescription = "RectI_ConsoleType";
            }
            else if (fieldType == TypeRectF)
            {
               pFieldTypeDescription = "RectF_ConsoleType";
            }
            else if (fieldType == TypeColorF)
            {
               pFieldTypeDescription = "ColorF_ConsoleType";
            }
            else if (fieldType == TypeColorI)
            {
               pFieldTypeDescription = "ColorI_ConsoleType";
            }
            else if (fieldType == TypeAssetId/* ||
                                             fieldType == TypeImageAssetPtr ||
                                             fieldType == TypeAnimationAssetPtr ||
                                             fieldType == TypeAudioAssetPtr*/)
            {
               pFieldTypeDescription = "AssetId_ConsoleType";
            }

            // Set attribute type.
            pAttributeElement->SetAttribute("type", pFieldTypeDescription);
            //}

            pAttributeElement->SetAttribute("use", "optional");
            pFieldAttributeGroupElement->LinkEndChild(pAttributeElement);
         }

         // Is this the SimObject Type?
         if (pType == pSimObjectType)
         {
            // Yes, so add reserved Taml field attributes here...

            // Add Taml "Name" attribute element.
            TiXmlElement* pNameAttributeElement = new TiXmlElement("xs:attribute");
            pNameAttributeElement->SetAttribute("name", tamlNamedObjectName);
            pNameAttributeElement->SetAttribute("type", "xs:normalizedString");
            pFieldAttributeGroupElement->LinkEndChild(pNameAttributeElement);

            // Add Taml "TamlId" attribute element.
            TiXmlElement* pTamlIdAttributeElement = new TiXmlElement("xs:attribute");
            pTamlIdAttributeElement->SetAttribute("name", tamlRefIdName);
            pTamlIdAttributeElement->SetAttribute("type", "xs:nonNegativeInteger");
            pFieldAttributeGroupElement->LinkEndChild(pTamlIdAttributeElement);

            // Add Taml "TamlRefId" attribute element.
            TiXmlElement* pTamlRefIdAttributeElement = new TiXmlElement("xs:attribute");
            pTamlRefIdAttributeElement->SetAttribute("name", tamlRefToIdName);
            pTamlRefIdAttributeElement->SetAttribute("type", "xs:nonNegativeInteger");
            pFieldAttributeGroupElement->LinkEndChild(pTamlRefIdAttributeElement);
         }

         // Add attribute group types.
         for (AbstractClassRep* pAttributeGroupsType = pType; pAttributeGroupsType != NULL; pAttributeGroupsType = pAttributeGroupsType->getParentClass())
         {
            TiXmlElement* pFieldAttributeGroupRefElement = new TiXmlElement("xs:attributeGroup");
            dSprintf(buffer, sizeof(buffer), "%s_Fields", pAttributeGroupsType->getClassName());
            pFieldAttributeGroupRefElement->SetAttribute("ref", buffer);
            pComplexTypeElement->LinkEndChild(pFieldAttributeGroupRefElement);
         }

         // Add "any" attribute element (dynamic fields).
         TiXmlElement* pAnyAttributeElement = new TiXmlElement("xs:anyAttribute");
         pAnyAttributeElement->SetAttribute("processContents", "skip");
         pComplexTypeElement->LinkEndChild(pAnyAttributeElement);
      }

      // Write the schema document.
      schemaDocument.SaveFile(filePathBuffer);

      // Close file.
      stream.close();

      return true;
   }

   //-----------------------------------------------------------------------------

   void Taml::WriteUnrestrictedCustomTamlSchema(const char* pCustomNodeName, const AbstractClassRep* pClassRep, TiXmlElement* pParentElement)
   {
      // Sanity!
      AssertFatal(pCustomNodeName != NULL, "Taml::WriteDefaultCustomTamlSchema() - Node name cannot be NULL.");
      AssertFatal(pClassRep != NULL, "Taml::WriteDefaultCustomTamlSchema() - ClassRep cannot be NULL.");
      AssertFatal(pParentElement != NULL, "Taml::WriteDefaultCustomTamlSchema() - Parent Element cannot be NULL.");

      char buffer[1024];

      // Add custom type element.
      TiXmlElement* pCustomElement = new TiXmlElement("xs:element");
      dSprintf(buffer, sizeof(buffer), "%s.%s", pClassRep->getClassName(), pCustomNodeName);
      pCustomElement->SetAttribute("name", buffer);
      pCustomElement->SetAttribute("minOccurs", 0);
      pCustomElement->SetAttribute("maxOccurs", 1);
      pParentElement->LinkEndChild(pCustomElement);

      // Add complex type element.
      TiXmlElement* pComplexTypeElement = new TiXmlElement("xs:complexType");
      pCustomElement->LinkEndChild(pComplexTypeElement);

      // Add choice element.
      TiXmlElement* pChoiceElement = new TiXmlElement("xs:choice");
      pChoiceElement->SetAttribute("minOccurs", 0);
      pChoiceElement->SetAttribute("maxOccurs", "unbounded");
      pComplexTypeElement->LinkEndChild(pChoiceElement);

      // Add sequence element.
      TiXmlElement* pSequenceElement = new TiXmlElement("xs:sequence");
      pChoiceElement->LinkEndChild(pSequenceElement);

      // Add "any" element.
      TiXmlElement* pAnyElement = new TiXmlElement("xs:any");
      pAnyElement->SetAttribute("processContents", "skip");
      pSequenceElement->LinkEndChild(pAnyElement);
   }