Added original SDK code for Alien Swarm.

public/keyvaluescompiler.h

@@ -0,0 +1,188 @@
+//====== Copyright (c) 1996-2005, Valve Corporation, All rights reserved. =======
+//
+// Purpose: 
+//
+//=============================================================================
+
+#ifndef KEYVALUESCOMPILER_H
+#define KEYVALUESCOMPILER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "tier0/platform.h"
+#include "tier1/utlbuffer.h"
+#include "tier1/utlsymbol.h"
+#include "tier1/utldict.h"
+
+class KeyValues;
+
+#define COMPILED_KEYVALUES_ID	MAKEID( 'V', 'K', 'V', 'F' )
+
+#define COMPILED_KEYVALUES_VERSION	1
+
+struct KVHeader_t
+{
+	int			fileid;
+	int			version;
+	int			numStrings;
+};
+
+#pragma pack(1)
+struct KVFile_t
+{
+	KVFile_t() :
+		filename( 0 ),
+		firstElement( 0 ),
+		numElements( 0 )
+	{
+	}
+	short			filename;
+	short			firstElement;
+	short			numElements;
+};
+
+struct KVInfo_t
+{
+	KVInfo_t() :
+		key( 0 ),
+		value( 0 ),
+		parentIndex( -1 ),
+		issubtree( false )
+	{
+	}
+
+	inline void SetParent( int index )
+	{
+		Assert( index <= 32768 );
+		parentIndex = index;
+	}
+
+	inline short GetParent() const
+	{
+		return parentIndex;
+	}
+
+	inline void SetSubTree( bool state )
+	{
+		issubtree = state;
+	}
+
+	inline bool IsSubTree() const
+	{
+		return issubtree;
+	}
+
+	short		key;
+	short		value;
+
+private:
+
+	short		parentIndex;
+	bool		issubtree;
+};
+#pragma pack()
+
+//-----------------------------------------------------------------------------
+// Purpose: stringtable is a session global string table.
+//-----------------------------------------------------------------------------
+class CCompiledKeyValuesWriter
+{
+public:
+
+	CCompiledKeyValuesWriter()
+	{
+		m_StringTable.AddString( "" );
+	}
+
+	void AppendKeyValuesFile( char const *filename );
+	void WriteFile( char const *outfile );
+
+private:
+
+	void Describe( const KVFile_t& file );
+
+	void BuildKVData_R( KeyValues *kv, int parent );
+
+	void WriteStringTable( CUtlBuffer& buf );
+	void WriteData( CUtlBuffer& buf );
+	void WriteFiles( CUtlBuffer &buf );
+
+	CUtlVector< KVFile_t >		m_Files;
+	CUtlVector< KVInfo_t >		m_Data;
+
+	CUtlSymbolTable				m_StringTable;
+};
+
+
+class CRunTimeKeyValuesStringTable
+{
+public:
+
+	bool ReadStringTable( int numStrings, CUtlBuffer& buf );
+	
+	inline int Count() const
+	{
+		return m_Strings.Count();
+	}
+
+	inline char const *Lookup( short index )
+	{
+		return m_Strings[ index ];
+	}
+
+private:
+	CUtlVector< const char * >	m_Strings; 
+};
+
+class CCompiledKeyValuesReader
+{
+public:
+
+	CCompiledKeyValuesReader();
+	
+	bool		LoadFile( char const *filename );
+
+	KeyValues	*Instance( char const *kvfilename );
+	bool		InstanceInPlace( KeyValues& head, char const *kvfilename );
+	bool		LookupKeyValuesRootKeyName( char const *kvfilename, char *outbuf, size_t bufsize );
+
+	int			First() const;
+	int			Next( int i ) const;
+	int			InvalidIndex() const;
+
+	void		GetFileName( int index, char *buf, size_t bufsize );
+
+private:
+
+	struct FileInfo_t
+	{
+		FileInfo_t() : 
+			hFile( 0 ),
+			nFirstIndex( 0 ), 
+			nCount( 0 ) 
+		{
+		}
+		FileNameHandle_t	hFile;
+		short				nFirstIndex;
+		short				nCount;
+
+		static bool Less( const FileInfo_t& lhs, const FileInfo_t& rhs )
+		{
+			return lhs.hFile < rhs.hFile;
+		}
+	};
+
+	KeyValues *CreateFromData( const FileInfo_t& info );
+	bool CreateInPlaceFromData( KeyValues& head, const FileInfo_t& info );
+
+	// Now get the actual files
+	CUtlRBTree< FileInfo_t, unsigned short >	m_Dict;
+	CUtlVector< KVInfo_t >		m_Data;
+
+	CRunTimeKeyValuesStringTable		m_StringTable;
+
+	CUtlBuffer							m_LoadBuffer;
+};
+
+#endif // KEYVALUESCOMPILER_H