--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imgtools/imglib/symbolutil/bsymutil.cpp	Mon Nov 22 10:56:31 2010 +0800
@@ -0,0 +1,120 @@
+/*
+* Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include "bsymutil.h"
+#include <stdio.h>
+
+
+MemoryWriter::MemoryWriter()
+{
+	iChar = new char[4*MaxSize];
+	iOffset = 0;
+	iTotalSize = 4*MaxSize;
+	iStringTableStart = 0;
+}
+MemoryWriter::~MemoryWriter()
+{
+	delete[] iChar;
+}
+int MemoryWriter::WriteBytes(const char* pChar, int size)
+{
+	while(iOffset + size > iTotalSize)
+	{
+		ExtendMemory();
+	}
+	memcpy(iChar + iOffset, pChar, size);
+	iOffset += size;
+	return size;
+}
+TUint32 MemoryWriter::GetOffset()
+{
+	return iOffset;
+}
+char* MemoryWriter::GetDataPointer()
+{
+	return iChar;
+}
+bool MemoryWriter::ExtendMemory()
+{
+	char* pTmp = new char[iTotalSize + MaxSize];
+	memcpy(pTmp, iChar, iOffset);
+	delete[] iChar;
+	iChar = pTmp;
+	iTotalSize += MaxSize;
+	return true;
+}
+bool MemoryWriter::SetOffset(TUint32 aOffset)
+{
+	while(aOffset > iTotalSize)
+	{
+		ExtendMemory();
+	}
+	iOffset = aOffset;
+	return true;
+}
+void MemoryWriter::AddEmptyString()
+{
+	unsigned char len = 0;
+	WriteBytes((char *)&len, 1);
+}
+TUint32 MemoryWriter::AddString(const string& aStr)
+{
+	TUint32 result = 0;
+	if(aStr.empty())
+		return result;
+	result = iOffset - iStringTableStart;
+	int len = aStr.length();
+	if(len >= 255)
+	{
+		TUint16 wlen = len;
+		unsigned char mark = 0xff;
+		WriteBytes((char*)&mark, 1);
+		WriteBytes((char*)&wlen, 2);
+		WriteBytes(aStr.c_str(), len);
+	}
+	else
+	{
+		unsigned char clen = len;
+		WriteBytes((char *)&clen, 1);
+		WriteBytes(aStr.c_str(), len);
+	}
+	return result;
+}
+TUint32 MemoryWriter::AddScopeName(const string& aStr)
+{
+	TUint32 result = 0;
+	if(aStr.empty())
+		return result;
+	if(aStr == iLastScopeName)
+	{
+		return iLastScopeNameOffset;
+	}
+	else
+	{
+		iLastScopeName = aStr;
+		iLastScopeNameOffset = AddString(aStr);
+	}
+	return iLastScopeNameOffset;
+}
+void MemoryWriter::SetStringTableStart(TUint32 aOffset)
+{
+	iStringTableStart = aOffset;
+}
+TUint32 MemoryWriter::GetStringTableStart()
+{
+	return iStringTableStart;
+}