third-party libs
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Benjamin Palko
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333
third-party/BugTrap-1.3-57bd515/source/StrStream.cpp
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333
third-party/BugTrap-1.3-57bd515/source/StrStream.cpp
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/*
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* This is a part of the BugTrap package.
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* Copyright (c) 2005-2009 IntelleSoft.
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* All rights reserved.
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*
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* Description: String (memory) stream class.
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* Author: Maksim Pyatkovskiy.
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*
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* This source code is only intended as a supplement to the
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* BugTrap package reference and related electronic documentation
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* provided with the product. See these sources for detailed
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* information regarding the BugTrap package.
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*/
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#include "StdAfx.h"
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#include "StrStream.h"
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#include "StrHolder.h"
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#include "BugTrapUtils.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#endif
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void CStrStream::InitBuffer(void)
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{
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m_pszData = NULL;
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m_nSize = m_nLength = 0;
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}
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/**
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* @param nSize - initial buffer size.
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*/
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void CStrStream::InitBuffer(size_t nSize)
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{
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if (nSize)
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{
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m_nLength = 0;
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m_pszData = new TCHAR[nSize];
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if (m_pszData)
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{
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*m_pszData = _T('\0');
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m_nSize = nSize;
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}
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else
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{
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m_nSize = 0;
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RaiseException(STATUS_NO_MEMORY, 0, 0, NULL);
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}
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}
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else
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InitBuffer();
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}
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/**
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* @param nSize - requested buffer size.
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* @param bAdaptiveGrowth - true for adaptive growth.
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*/
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void CStrStream::EnsureSize(size_t nSize, bool bAdaptiveGrowth)
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{
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if (m_nSize < nSize)
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{
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if (bAdaptiveGrowth)
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nSize *= 2;
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PTSTR pszData = new TCHAR[nSize];
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if (! pszData)
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RaiseException(STATUS_NO_MEMORY, 0, 0, NULL);
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if (m_pszData)
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{
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_tcscpy_s(pszData, nSize, m_pszData);
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delete[] m_pszData;
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}
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m_pszData = pszData;
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m_nSize = nSize;
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}
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}
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/**
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* @param pszStrData - data source.
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* @param nLength - string length.
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*/
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void CStrStream::InitData(PCTSTR pszStrData, size_t nLength)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nSize = nLength + 1;
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InitBuffer(nSize);
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_tcsncpy_s(m_pszData, nSize, pszStrData, nLength);
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m_nLength = nLength;
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}
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else
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InitBuffer();
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}
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/**
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* @param pszStrData - data source.
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* @param nLength - string length.
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*/
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void CStrStream::CopyData(PCTSTR pszStrData, size_t nLength)
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{
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if (m_pszData != pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nSize = nLength + 1;
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EnsureSize(nSize, false);
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_tcsncpy_s(m_pszData, nSize, pszStrData, nLength);
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m_nLength = nLength;
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}
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else
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Reset();
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}
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}
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/**
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* @param pszStrData - data source.
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* @param nLength - string length.
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*/
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void CStrStream::AppendData(PCTSTR pszStrData, size_t nLength)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nNewLength = m_nLength + nLength;
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EnsureSize(nNewLength + 1, true);
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_tcsncpy_s(m_pszData + m_nLength, nLength + 1, pszStrData, nLength);
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m_nLength = nNewLength;
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}
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}
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#ifdef _UNICODE
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::InitData(PCSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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int nSize = MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, NULL, 0);
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_ASSERTE(nSize > 0);
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InitBuffer(nSize);
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MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, m_pszData, nSize);
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m_nLength = nSize - 1;
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}
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else
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InitBuffer();
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}
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::CopyData(PCSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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int nSize = MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, NULL, 0);
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_ASSERTE(nSize > 0);
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EnsureSize(nSize, false);
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MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, m_pszData, nSize);
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m_nLength = nSize - 1;
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}
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else
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Reset();
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}
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::AppendData(PCSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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int nSize = MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, NULL, 0);
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_ASSERTE(nSize > 0);
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size_t nNewSize = m_nLength + nSize;
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EnsureSize(nNewSize, true);
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MultiByteToWideChar(CP_ACP, 0, pszStrData, -1, m_pszData + m_nLength, nSize);
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m_nLength = nNewSize - 1;
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}
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}
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#else
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::InitData(PCWSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nSize = WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, NULL, 0, NULL, NULL);
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_ASSERTE(nSize > 0);
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InitBuffer(nSize);
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WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, m_pszData, (int)nSize, NULL, NULL);
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m_nLength = nSize - 1;
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}
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else
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InitBuffer();
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}
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::CopyData(PCWSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nSize = WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, NULL, 0, NULL, NULL);
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_ASSERTE(nSize > 0);
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EnsureSize(nSize, false);
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WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, m_pszData, (int)nSize, NULL, NULL);
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m_nLength = nSize - 1;
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}
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else
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Reset();
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}
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/**
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* @param pszStrData - data source.
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*/
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void CStrStream::AppendData(PCWSTR pszStrData)
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{
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if (pszStrData && *pszStrData)
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{
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size_t nSize = WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, NULL, 0, NULL, NULL);
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_ASSERTE(nSize > 0);
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size_t nNewSize = m_nLength + nSize;
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EnsureSize(nNewSize, true);
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WideCharToMultiByte(CP_ACP, 0, pszStrData, -1, m_pszData + m_nLength, (int)nSize, NULL, NULL);
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m_nLength = nNewSize - 1;
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}
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}
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#endif
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/**
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* @return object string buffer.
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* @note The caller is responsible to free returned string buffer.
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*/
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PTSTR CStrStream::Detach(void)
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{
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PTSTR pszData = m_pszData;
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InitBuffer();
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return pszData;
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}
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void CStrStream::Reset(void)
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{
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if (m_pszData)
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{
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*m_pszData = _T('\0');
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m_nLength = 0;
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}
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}
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void CStrStream::Free(void)
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{
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if (m_pszData)
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{
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delete[] m_pszData;
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InitBuffer();
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}
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}
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/**
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* @param nPosition - start position.
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* @param nLength - length of the extracted string.
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*/
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void CStrStream::ValidateIndex(size_t nPosition, size_t& nLength) const
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{
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_ASSERTE(nPosition <= m_nLength);
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if (nPosition > m_nLength)
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RaiseException(STATUS_ARRAY_BOUNDS_EXCEEDED, 0, 0, NULL);
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size_t nMaxLength = m_nLength - nPosition;
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if (nLength == MAXSIZE_T)
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nLength = nMaxLength;
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else
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{
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_ASSERTE(nLength <= nMaxLength);
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if (nLength > nMaxLength)
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RaiseException(STATUS_ARRAY_BOUNDS_EXCEEDED, 0, 0, NULL);
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}
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}
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/**
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* @param rStrHolder - string buffer that receives the data.
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* @param nPosition - start position.
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* @param nLength - length of the extracted string.
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*/
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void CStrStream::Substring(CStrHolder& rStrHolder, size_t nPosition, size_t nLength) const
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{
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ValidateIndex(nPosition, nLength);
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size_t nEndPosition = nPosition + nLength;
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TCHAR chData = m_pszData[nEndPosition];
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m_pszData[nEndPosition] = _T('\0');
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rStrHolder = m_pszData + nPosition;
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m_pszData[nEndPosition] = chData;
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}
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/**
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* @param pszSubstring - inserted string buffer.
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* @param nPosition - start position.
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* @param nLength - length of the inserted string.
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*/
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void CStrStream::Insert(PCTSTR pszSubstring, size_t nPosition, size_t nLength)
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{
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ValidateIndex(nPosition);
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size_t nNewLength = m_nLength + nLength;
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EnsureSize(nNewLength + 1, true);
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size_t nNextPosition = nPosition + nLength;
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size_t nNextLength = m_nLength - nPosition;
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MoveMemory(m_pszData + nNextPosition, m_pszData + nPosition, (nNextLength + 1) * sizeof(TCHAR));
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MoveMemory(m_pszData + nPosition, pszSubstring, nLength * sizeof(TCHAR));
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m_nLength = nNewLength;
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}
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/**
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* @param nPosition - start position.
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* @param nLength - length of the extracted string.
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*/
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void CStrStream::Delete(size_t nPosition, size_t nLength)
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{
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ValidateIndex(nPosition, nLength);
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size_t nNewLength = m_nLength - nLength;
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MoveMemory(m_pszData + nPosition, m_pszData + nLength, (nNewLength + 1) * sizeof(TCHAR));
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m_nLength = nNewLength;
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}
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void CStrStream::Trim(void)
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{
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TrimSpaces(m_pszData);
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m_nLength = _tcslen(m_pszData);
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}
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