/*******************************************************************************
*
*  (C) COPYRIGHT MICROSOFT CORPORATION, 1998
*
*  TITLE:       SIMSTR.H
*
*  VERSION:     1.0
*
*  AUTHOR:      ShaunIv
*
*  DATE:        5/12/1998
*
*  DESCRIPTION: Simple string classes
*
*******************************************************************************/
#ifndef _SIMSTR_H_INCLUDED
#define _SIMSTR_H_INCLUDED

/*
* Simple string class.
*
* Template class:
*   CSimpleStringBase<CharType>
* Implementations:
*   CSimpleStringBase<wchar_t> CSimpleStringWide
*   CSimpleStringBase<char> CSimpleStringAnsi
*   CSimpleString = CSimpleString[Ansi|Wide] depending on UNICODE macro
* Inline functions:
*   CSimpleStringAnsi CSimpleStringConvert::AnsiString(CharType n)
*   CSimpleStringWide CSimpleStringConvert::WideString(CharType n)
*   CSimpleString     CSimpleStringConvert::NaturalString(CharType n)
* Macros:
*   IS_CHAR(CharType)
*   IS_WCHAR(CharType)
*/

#include <windows.h>
#include <stdarg.h>
#include <stdio.h>
#include <tchar.h>

//
// Disable the "conditional expression is constant" warning that is caused by
// the IS_CHAR and IS_WCHAR macros
//
#pragma warning( push )
#pragma warning( disable : 4127 )

#define IS_CHAR(x)     (sizeof(x) & sizeof(char))
#define IS_WCHAR(x)    (sizeof(x) & sizeof(wchar_t))

#ifndef ARRAYSIZE
    #define ARRAYSIZE(x)   (sizeof(x) / sizeof(x[0]))
#endif

template <class CharType>
class CSimpleStringBase
{
private:
    enum
    {
        c_nDefaultGranularity  = 16,   // Default number of extra characters to allocate when we have to grow
        c_nMaxLoadStringBuffer = 1024, // Maximum length of .RC string
        c_nMaxAutoDataLength   = 128   // Length of non-dynamically allocated string
    };

private:    
    //
    // If the string is less than c_nMaxAutoDataLength characters, it will be
    // stored here, instead of in a dynamically allocated buffer
    //
    CharType m_pstrAutoData[c_nMaxAutoDataLength];
    
    //
    // If we have to allocated data, it will be stored here
    //
    CharType *m_pstrData;

    //
    // Current maximum buffer size
    //
    UINT m_nMaxSize;

    //
    // Amount of extra space we allocate when we have to grow the buffer
    //
    UINT m_nGranularity;

private:

    //
    // Min, in case it isn't already defined
    //
    template <class NumberType>
    static NumberType Min( const NumberType &a, const NumberType &b )
    {
        return (a < b) ? a : b;
    }

public:
    
    //
    // Replacements (in some cases just wrappers) for strlen, strcpy, ...
    //
    static inline CharType   *GenericCopy( CharType *pstrTarget, const CharType *pstrSource );
    static inline CharType   *GenericCopyLength( CharType *pstrTarget, const CharType *pstrSource, UINT nSize );
    static inline UINT        GenericLength( const CharType *pstrStr );
    static inline CharType   *GenericConcatenate( CharType *pstrTarget, const CharType *pstrSource );
    static inline int         GenericCompare( const CharType *pstrTarget, const CharType *pstrSource );
    static inline int         GenericCompareNoCase( const CharType *pstrStrA, const CharType *pstrStrB );
    static inline int         GenericCompareLength( const CharType *pstrTarget, const CharType *pstrSource, UINT nLength );
    static inline CharType   *GenericCharNext( const CharType *pszStr );

private:
    //
    // Internal only helpers
    //
    bool EnsureLength( UINT nMaxSize );
    void DeleteStorage();
    static inline CharType *CreateStorage( UINT nCount );
    void Destroy();

public:
    //
    // Constructors and destructor
    //
    CSimpleStringBase();
    CSimpleStringBase( const CSimpleStringBase & );
    CSimpleStringBase( const CharType *szStr );
    CSimpleStringBase( CharType ch );
    CSimpleStringBase( UINT nResId, HMODULE hModule );
    virtual ~CSimpleStringBase();

    //
    // Various helpers
    //
    UINT Length() const;
    void Concat( const CSimpleStringBase &other );
    int Resize();
    UINT Truncate( UINT nLen );
    bool Assign( const CharType *szStr );
    bool Assign( const CSimpleStringBase & );
    void SetAt( UINT nIndex, CharType chValue );
    CharType &operator[](int index);
    const CharType &operator[](int index) const;

    //
    // Handy Win32 wrappers
    //
    CSimpleStringBase &Format( const CharType *strFmt, ... );
    CSimpleStringBase &Format( int nResId, HINSTANCE hInst, ... );
    CSimpleStringBase &GetWindowText( HWND hWnd );    
    bool SetWindowText( HWND hWnd );
    bool LoadString( UINT nResId, HMODULE hModule );
    bool Load( HKEY hRegKey, const CharType *pszValueName, const CharType *pszDefault=NULL );
    bool Store( HKEY hRegKey, const CharType *pszValueName, DWORD nType = REG_SZ );

    //
    // Operators
    //
    CSimpleStringBase &operator=( const CSimpleStringBase &other );
    CSimpleStringBase &operator=( const CharType *other );
    CSimpleStringBase &operator+=( const CSimpleStringBase &other );


    //
    // Convert this string and return the converted string
    //
    CSimpleStringBase ToUpper() const;
    CSimpleStringBase ToLower() const;

    //
    // Convert in place
    //
    CSimpleStringBase &MakeUpper();
    CSimpleStringBase &MakeLower();

    //
    // Remove leading and trailing spaces
    //
    CSimpleStringBase &TrimRight();
    CSimpleStringBase &TrimLeft();
    CSimpleStringBase &Trim();

    //
    // Reverse
    //
    CSimpleStringBase &Reverse();

    //
    // Searching
    //
    int Find( CharType cChar ) const;
    int Find( const CSimpleStringBase &other, UINT nStart=0 ) const;
    int ReverseFind( CharType cChar ) const;
    int ReverseFind( const CSimpleStringBase &other ) const;

    //
    // Substring copies
    //
    CSimpleStringBase SubStr( int nStart, int nCount=-1 ) const;

    CSimpleStringBase Left( int nCount ) const
    { 
        return SubStr( 0, nCount );
    }
    CSimpleStringBase Right( int nCount ) const
    {
        return SubStr( max(0,(int)Length()-nCount), -1 );
    }

    //
    // Comparison functions
    //
    int CompareNoCase( const CSimpleStringBase &other, int nLength=-1 ) const;
    int Compare( const CSimpleStringBase &other, int nLength=-1 ) const;
    bool MatchLastCharacter( CharType cChar ) const;

    //
    // Direct manipulation
    //
    CharType *GetBuffer( int nLength )
    {
        //
        // If the user passed 0, or we are able to allocate a string of the
        // requested length, return a pointer to the actual data.
        //
        if (!nLength || EnsureLength(nLength+1))
        {
            return m_pstrData;
        }
        return NULL;
    }

    //
    // Useful inlines
    //
    const CharType *String() const
    { 
        return m_pstrData;
    }
    UINT MaxSize() const
    {
        return m_nMaxSize;
    }
    UINT Granularity( UINT nGranularity )
    { 
        if (nGranularity>0)
        {
            m_nGranularity = nGranularity;
        }
        return m_nGranularity;
    }
    UINT Granularity() const
    {
        return m_nGranularity;
    }

    //
    // Implicit cast operator
    //
    operator const CharType *() const
    { 
        return String();
    }

    //
    // Sanity check
    //
    bool IsValid() const
    {
        return(NULL != m_pstrData);
    }
};

template <class CharType>
inline CharType *CSimpleStringBase<CharType>::GenericCopy( CharType *pszDest, const CharType *pszSource )
{
    CopyMemory( pszDest, pszSource, sizeof(CharType) * (GenericLength(pszSource) + 1) );
    return pszDest;
}

template <class CharType>
inline CharType *CSimpleStringBase<CharType>::GenericCharNext( const CharType *pszStr )
{
    if (IS_CHAR(*pszStr))
        return(CharType*)CharNextA((LPCSTR)pszStr);
    else if (!*pszStr)
        return(CharType*)pszStr;
    else return(CharType*)((LPWSTR)pszStr + 1);
}

template <class CharType>
inline CharType *CSimpleStringBase<CharType>::GenericCopyLength( CharType *pszTarget, const CharType *pszSource, UINT nCount )
{
    UINT nCopyLen = min( nCount, GenericLength(pszSource) + 1 );

    CopyMemory( pszTarget, pszSource, nCopyLen * sizeof(CharType) );

    if (nCopyLen < nCount)
    {
        pszTarget[nCopyLen] = 0;
    }
    return pszTarget;
}

template <class CharType>
inline UINT CSimpleStringBase<CharType>::GenericLength( const CharType *pszString )
{
    const CharType *eos = pszString;

    while (*eos++)
        ;
    return((UINT)(eos - pszString - 1));
}

template <class CharType>
inline CharType*CSimpleStringBase<CharType>::GenericConcatenate( CharType *pszDest, const CharType *pszSource )
{
    CharType *pCurr = pszDest;

    while (*pCurr)
        pCurr++;

    CopyMemory( pCurr, pszSource, sizeof(CharType) * (GenericLength(pszSource) + 1) );

    return pszDest;
}


template <class CharType>
inline int CSimpleStringBase<CharType>::GenericCompare( const CharType *pszSource, const CharType *pszDest )
{
#if defined(DBG) && !defined(UNICODE) && !defined(_UNICODE)
    if (sizeof(CharType) == sizeof(wchar_t))
    {
        OutputDebugString(TEXT("CompareStringW is not supported under win9x, so this call is going to fail!"));
    }
#endif
    int nRes = IS_CHAR(*pszSource) ?
               CompareStringA( LOCALE_USER_DEFAULT, 0, (LPCSTR)pszSource, -1, (LPCSTR)pszDest, -1 ) :
               CompareStringW( LOCALE_USER_DEFAULT, 0, (LPCWSTR)pszSource, -1, (LPCWSTR)pszDest, -1 );
    switch (nRes)
    {
    case CSTR_LESS_THAN:
        return -1;
    case CSTR_GREATER_THAN:
        return 1;
    default:
        return 0;
    }
}


template <class CharType>
inline int CSimpleStringBase<CharType>::GenericCompareNoCase( const CharType *pszSource, const CharType *pszDest )
{
#if defined(DBG) && !defined(UNICODE) && !defined(_UNICODE)
    if (sizeof(CharType) == sizeof(wchar_t))
    {
        OutputDebugString(TEXT("CompareStringW is not supported under win9x, so this call is going to fail!"));
    }
#endif
    int nRes = IS_CHAR(*pszSource) ?
               CompareStringA( LOCALE_USER_DEFAULT, NORM_IGNORECASE, (LPCSTR)pszSource, -1, (LPCSTR)pszDest, -1 ) :
               CompareStringW( LOCALE_USER_DEFAULT, NORM_IGNORECASE, (LPCWSTR)pszSource, -1, (LPCWSTR)pszDest, -1 );
    switch (nRes)
    {
    case CSTR_LESS_THAN:
        return -1;
    case CSTR_GREATER_THAN:
        return 1;
    default:
        return 0;
    }
}

template <class CharType>
inline int CSimpleStringBase<CharType>::GenericCompareLength( const CharType *pszStringA, const CharType *pszStringB, UINT nLength )
{
#if defined(DBG) && !defined(UNICODE) && !defined(_UNICODE)
    if (sizeof(CharType) == sizeof(wchar_t))
    {
        OutputDebugString(TEXT("CompareStringW is not supported under win9x, so this call is going to fail!"));
    }
#endif
    if (!nLength)
        return(0);
    int nRes = IS_CHAR(*pszStringA) ?
               CompareStringA( LOCALE_USER_DEFAULT, 0, (LPCSTR)pszStringA, Min(nLength,CSimpleStringBase<CHAR>::GenericLength((LPCSTR)pszStringA)), (LPCSTR)pszStringB, Min(nLength,CSimpleStringBase<CHAR>::GenericLength((LPCSTR)pszStringB)) ) :
               CompareStringW( LOCALE_USER_DEFAULT, 0, (LPWSTR)pszStringA, Min(nLength,CSimpleStringBase<WCHAR>::GenericLength((LPCWSTR)pszStringA)), (LPCWSTR)pszStringB, Min(nLength,CSimpleStringBase<WCHAR>::GenericLength((LPCWSTR)pszStringB)) );
    switch (nRes)
    {
    case CSTR_LESS_THAN:
        return -1;
    case CSTR_GREATER_THAN:
        return 1;
    default:
        return 0;
    }
}

template <class CharType>
bool CSimpleStringBase<CharType>::EnsureLength( UINT nMaxSize )
{
    //
    // If the string is already long enough, just return true
    //
    if (m_nMaxSize >= nMaxSize)
    {
        return true;
    }

    // Get the new size
    //
    UINT nNewMaxSize = nMaxSize + m_nGranularity;

    //
    // Allocate the new buffer
    //
    CharType *pszTmp = CreateStorage(nNewMaxSize);

    //
    // Make sure the allocation succeded
    //
    if (pszTmp)
    {
        //
        // If we have an existing string, copy it and delete it
        //
        if (m_pstrData)
        {
            GenericCopy(pszTmp,m_pstrData);
            DeleteStorage();
        }

        //
        // Save the new max size
        //
        m_nMaxSize = nNewMaxSize;

        //
        // Save this new string
        //
        m_pstrData = pszTmp;

        //
        // Return success
        //
        return true;
    }

    //
    // Couldn't allocate memory
    //
    return false;
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::GetWindowText( HWND hWnd )
{
    Destroy();
    // Assume it didn't work
    bool bSuccess = false;
    int nLen = ::GetWindowTextLength(hWnd);
    if (nLen)
    {
        if (EnsureLength(nLen+1))
        {
            if (::GetWindowText( hWnd, m_pstrData, (nLen+1) ))
            {
                bSuccess = true;
            }
        }
    }
    if (!bSuccess)
        Destroy();
    return *this;
}

template <class CharType>
bool CSimpleStringBase<CharType>::SetWindowText( HWND hWnd )
{
    return(::SetWindowText( hWnd, String() ) != FALSE);
}

template <class CharType>
UINT CSimpleStringBase<CharType>::Truncate( UINT nLen )
{
    if (Length() < nLen)
        return Length();
    if (!nLen)
        return 0;
    m_pstrData[nLen-1] = 0;
    Resize();
    return Length();
}

template <class CharType>
int CSimpleStringBase<CharType>::Resize()
{
    m_nMaxSize = m_pstrData ? GenericLength(m_pstrData) : 0;
    ++m_nMaxSize;
    CharType *pszTmp = CreateStorage(m_nMaxSize);
    if (pszTmp)
    {
        if (m_pstrData)
        {
            GenericCopy(pszTmp,m_pstrData);
            DeleteStorage();
        }
        else *pszTmp = 0;
        m_pstrData = pszTmp;
    }
    return Length();
}

template <class CharType>
CSimpleStringBase<CharType>::CSimpleStringBase()
  : m_pstrData(m_pstrAutoData),
    m_nMaxSize(ARRAYSIZE(m_pstrAutoData)),
    m_nGranularity(c_nDefaultGranularity)
{
    m_pstrAutoData[0] = 0;
    CharType szTmp[1] = { 0};
    Assign(szTmp);
}

template <class CharType>
CSimpleStringBase<CharType>::CSimpleStringBase( const CSimpleStringBase &other )
  : m_pstrData(m_pstrAutoData),
    m_nMaxSize(ARRAYSIZE(m_pstrAutoData)),
    m_nGranularity(c_nDefaultGranularity)
{
    m_pstrAutoData[0] = 0;
    Assign(other.String());
}

template <class CharType>
CSimpleStringBase<CharType>::CSimpleStringBase( const CharType *szStr )
  : m_pstrData(m_pstrAutoData),
    m_nMaxSize(ARRAYSIZE(m_pstrAutoData)),
    m_nGranularity(c_nDefaultGranularity)
{
    m_pstrAutoData[0] = 0;
    Assign(szStr);
}

template <class CharType>
CSimpleStringBase<CharType>::CSimpleStringBase( CharType ch )
  : m_pstrData(m_pstrAutoData),
    m_nMaxSize(ARRAYSIZE(m_pstrAutoData)),
    m_nGranularity(c_nDefaultGranularity)
{
    m_pstrAutoData[0] = 0;
    CharType szTmp[2];
    szTmp[0] = ch;
    szTmp[1] = 0;
    Assign(szTmp);
}


template <class CharType>
CSimpleStringBase<CharType>::CSimpleStringBase( UINT nResId, HMODULE hModule )
  : m_pstrData(m_pstrAutoData),
    m_nMaxSize(ARRAYSIZE(m_pstrAutoData)),
    m_nGranularity(c_nDefaultGranularity)
{
    m_pstrAutoData[0] = 0;
    LoadString( nResId, hModule );
}

template <>
inline CSimpleStringBase<WCHAR> &CSimpleStringBase<WCHAR>::Format( const WCHAR *strFmt, ... )
{
    WCHAR szTmp[1024] = {0};
    va_list arglist;

    va_start(arglist, strFmt);
    _vsnwprintf( szTmp, ARRAYSIZE(szTmp)-1, strFmt, arglist );
    va_end(arglist);
    Assign(szTmp);
    return *this;
}

template <>
inline CSimpleStringBase<CHAR> &CSimpleStringBase<CHAR>::Format( const CHAR *strFmt, ... )
{
    CHAR szTmp[1024] = {0};
    va_list arglist;

    va_start(arglist, strFmt);
    _vsnprintf( szTmp, ARRAYSIZE(szTmp)-1, strFmt, arglist );
    va_end(arglist);
    Assign(szTmp);
    return *this;
}


template <>
inline CSimpleStringBase<CHAR> &CSimpleStringBase<CHAR>::Format( int nResId, HINSTANCE hInst, ... )
{
    CSimpleStringBase<CHAR> strFmt;
    if (strFmt.LoadString(nResId,hInst))
    {
        CHAR szTmp[1024] = {0};
        
        va_list arglist;
        va_start(arglist, hInst);
        _vsnprintf( szTmp, ARRAYSIZE(szTmp)-1, strFmt, arglist );
        va_end(arglist);
        Assign(szTmp);
    }
    else Assign(NULL);
    return *this;
}

template <>
inline CSimpleStringBase<WCHAR> &CSimpleStringBase<WCHAR>::Format( int nResId, HINSTANCE hInst, ... )
{
    CSimpleStringBase<WCHAR> strFmt;
    if (strFmt.LoadString(nResId,hInst))
    {
        WCHAR szTmp[1024] = {0};
        
        va_list arglist;
        va_start(arglist, hInst);
        _vsnwprintf( szTmp, ARRAYSIZE(szTmp)-1, strFmt, arglist );
        va_end(arglist);
        Assign(szTmp);
    }
    else Assign(NULL);
    return *this;
}


template <>
inline bool CSimpleStringBase<CHAR>::LoadString( UINT nResId, HMODULE hModule )
{
    if (!hModule)
    {
        hModule = GetModuleHandle(NULL);
    }
    CHAR szTmp[c_nMaxLoadStringBuffer] = {0};
    int nRet = ::LoadStringA( hModule, nResId, szTmp, ARRAYSIZE(szTmp));
    return nRet ? Assign(szTmp) : Assign(NULL);
}

template <>
inline bool CSimpleStringBase<WCHAR>::LoadString( UINT nResId, HMODULE hModule )
{
    if (!hModule)
    {
        hModule = GetModuleHandle(NULL);
    }
    WCHAR szTmp[c_nMaxLoadStringBuffer] = {0};
    int nRet = ::LoadStringW( hModule, nResId, szTmp, ARRAYSIZE(szTmp));
    return nRet ? Assign(szTmp) : Assign(NULL);
}


template <class CharType>
CSimpleStringBase<CharType>::~CSimpleStringBase()
{
    Destroy();
}

template <class CharType>
void CSimpleStringBase<CharType>::DeleteStorage()
{
    //
    // Only delete the string if it is non-NULL and not pointing to our non-dynamically allocated buffer
    //
    if (m_pstrData && m_pstrData != m_pstrAutoData)
    {
        delete[] m_pstrData;
    }
    m_pstrData = NULL;
}

template <class CharType>
CharType *CSimpleStringBase<CharType>::CreateStorage( UINT nCount )
{
    return new CharType[nCount];
}

template <class CharType>
void CSimpleStringBase<CharType>::Destroy()
{
    DeleteStorage();
    m_nMaxSize = 0;
}

template <class CharType>
UINT CSimpleStringBase<CharType>::Length() const
{
    return(m_pstrData ? GenericLength(m_pstrData) : 0);
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::operator=( const CSimpleStringBase &other )
{
    if (&other != this)
    {
        Assign(other.String());
    }
    return *this;
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::operator=( const CharType *other )
{
    if (other != String())
    {
        Assign(other);
    }
    return *this;
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::operator+=( const CSimpleStringBase &other )
{
    Concat(other.String());
    return *this;
}

template <class CharType>
bool CSimpleStringBase<CharType>::Assign( const CharType *szStr )
{
    if (szStr && EnsureLength(GenericLength(szStr)+1))
    {
        GenericCopy(m_pstrData,szStr);
    }
    else if (EnsureLength(1))
    {
        *m_pstrData = 0;
    }
    else Destroy();
    return(NULL != m_pstrData);
}

template <class CharType>
bool CSimpleStringBase<CharType>::Assign( const CSimpleStringBase &other )
{
    return Assign( other.String() );
}

template <class CharType>
void CSimpleStringBase<CharType>::SetAt( UINT nIndex, CharType chValue )
{
    //
    // Make sure we don't go off the end of the string or overwrite the '\0'
    //
    if (m_pstrData && Length() > nIndex)
    {
        m_pstrData[nIndex] = chValue;
    }
}


template <class CharType>
void CSimpleStringBase<CharType>::Concat( const CSimpleStringBase &other )
{
    if (EnsureLength( Length() + other.Length() + 1 ))
    {
        GenericConcatenate(m_pstrData,other.String());
    }
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::MakeUpper()
{
    //
    // Make sure the string is not NULL
    //
    if (m_pstrData)
    {
        IS_CHAR(*m_pstrData) ? CharUpperBuffA( (LPSTR)m_pstrData, Length() ) : CharUpperBuffW( (LPWSTR)m_pstrData, Length() );
    }
    return *this;
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::MakeLower()
{
    //
    // Make sure the string is not NULL
    //
    if (m_pstrData)
    {
        IS_CHAR(*m_pstrData) ? CharLowerBuffA( (LPSTR)m_pstrData, Length() ) : CharLowerBuffW( (LPWSTR)m_pstrData, Length() );
    }
    return *this;
}

template <class CharType>
CSimpleStringBase<CharType> CSimpleStringBase<CharType>::ToUpper() const
{
    CSimpleStringBase str(*this);
    str.MakeUpper();
    return str;
}

template <class CharType>
CSimpleStringBase<CharType> CSimpleStringBase<CharType>::ToLower() const
{
    CSimpleStringBase str(*this);
    str.MakeLower();
    return str;
}

template <class CharType>
CharType &CSimpleStringBase<CharType>::operator[](int nIndex)
{
    return m_pstrData[nIndex];
}

template <class CharType>
const CharType &CSimpleStringBase<CharType>::operator[](int index) const
{
    return m_pstrData[index];
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::TrimRight()
{
    CharType *pFirstWhitespaceCharacterInSequence = NULL;
    bool bInWhiteSpace = false;
    CharType *pszPtr = m_pstrData;
    while (pszPtr && *pszPtr)
    {
        if (*pszPtr == L' ' || *pszPtr == L'\t' || *pszPtr == L'\n' || *pszPtr == L'\r')
        {
            if (!bInWhiteSpace)
            {
                pFirstWhitespaceCharacterInSequence = pszPtr;
                bInWhiteSpace = true;
            }
        }
        else
        {
            bInWhiteSpace = false;
        }
        pszPtr = GenericCharNext(pszPtr);
    }
    if (pFirstWhitespaceCharacterInSequence && bInWhiteSpace)
        *pFirstWhitespaceCharacterInSequence = 0;
    return *this;
}

template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::TrimLeft()
{
    CharType *pszPtr = m_pstrData;
    while (pszPtr && *pszPtr)
    {
        if (*pszPtr == L' ' || *pszPtr == L'\t' || *pszPtr == L'\n' || *pszPtr == L'\r')
        {
            pszPtr = GenericCharNext(pszPtr);
        }
        else break;
    }
    Assign(CSimpleStringBase<CharType>(pszPtr).String());
    return *this;
}

template <class CharType>
inline CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::Trim()
{
    TrimLeft();
    TrimRight();
    return *this;
}

//
// Note that this function WILL NOT WORK CORRECTLY for multi-byte characters in ANSI strings
//
template <class CharType>
CSimpleStringBase<CharType> &CSimpleStringBase<CharType>::Reverse()
{
    UINT nLen = Length();
    for (UINT i = 0;i<nLen/2;i++)
    {
        CharType tmp = m_pstrData[i];
        m_pstrData[i] = m_pstrData[nLen-i-1];
        m_pstrData[nLen-i-1] = tmp;
    }
    return *this;
}

template <class CharType>
int CSimpleStringBase<CharType>::Find( CharType cChar ) const
{
    CharType strTemp[2] = { cChar, 0};
    return Find(strTemp);
}


template <class CharType>
int CSimpleStringBase<CharType>::Find( const CSimpleStringBase &other, UINT nStart ) const
{
    if (!m_pstrData)
        return -1;
    if (nStart > Length())
        return -1;
    CharType *pstrCurr = m_pstrData+nStart, *pstrSrc, *pstrSubStr;
    while (*pstrCurr)
    {
        pstrSrc = pstrCurr;
        pstrSubStr = (CharType *)other.String();
        while (*pstrSrc && *pstrSubStr && *pstrSrc == *pstrSubStr)
        {
            pstrSrc = GenericCharNext(pstrSrc);
            pstrSubStr = GenericCharNext(pstrSubStr);
        }
        if (!*pstrSubStr)
            return static_cast<int>(pstrCurr-m_pstrData);
        pstrCurr = GenericCharNext(pstrCurr);
    }
    return -1;
}

template <class CharType>
int CSimpleStringBase<CharType>::ReverseFind( CharType cChar ) const
{
    CharType strTemp[2] = { cChar, 0};
    return ReverseFind(strTemp);
}

template <class CharType>
int CSimpleStringBase<CharType>::ReverseFind( const CSimpleStringBase &srcStr ) const
{
    int nLastFind = -1, nFind=0;
    while ((nFind = Find( srcStr, nFind )) >= 0)
    {
        nLastFind = nFind;
        ++nFind;
    }
    return nLastFind;
}

template <class CharType>
CSimpleStringBase<CharType> CSimpleStringBase<CharType>::SubStr( int nStart, int nCount ) const
{
    if (nStart >= (int)Length() || nStart < 0)
    {
        return CSimpleStringBase<CharType>();
    }
    if (nCount < 0)
    {
        nCount = Length() - nStart;
    }
    CSimpleStringBase<CharType> strTmp;
    CharType *pszTmp = CreateStorage(nCount+1);
    if (pszTmp)
    {
        GenericCopyLength( pszTmp, m_pstrData+nStart, nCount+1 );
        pszTmp[nCount] = 0;
        strTmp = pszTmp;
        delete[] pszTmp;
    }
    return strTmp;
}

template <class CharType>
int CSimpleStringBase<CharType>::CompareNoCase( const CSimpleStringBase &other, int nLength ) const
{
    if (nLength < 0)
    {
        //
        // Make sure both strings are non-NULL
        //
        if (!String() && !other.String())
        {
            return 0;
        }
        else if (!String())
        {
            return -1;
        }
        else if (!other.String())
        {
            return 1;
        }
        else return GenericCompareNoCase(m_pstrData,other.String());
    }
    CSimpleStringBase<CharType> strSrc(*this);
    CSimpleStringBase<CharType> strTgt(other);
    strSrc.MakeUpper();
    strTgt.MakeUpper();
    //
    // Make sure both strings are non-NULL
    //
    if (!strSrc.String() && !strTgt.String())
    {
        return 0;
    }
    else if (!strSrc.String())
    {
        return -1;
    }
    else if (!strTgt.String())
    {
        return 1;
    }
    else return GenericCompareLength(strSrc.String(),strTgt.String(),nLength);
}


template <class CharType>
int CSimpleStringBase<CharType>::Compare( const CSimpleStringBase &other, int nLength ) const
{
    //
    // Make sure both strings are non-NULL
    //
    if (!String() && !other.String())
    {
        return 0;
    }
    else if (!String())
    {
        return -1;
    }
    else if (!other.String())
    {
        return 1;
    }

    if (nLength < 0)
    {
        return GenericCompare(String(),other.String());
    }
    return GenericCompareLength(String(),other.String(),nLength);
}

template <class CharType>
bool CSimpleStringBase<CharType>::MatchLastCharacter( CharType cChar ) const
{
    int nFind = ReverseFind(cChar);
    if (nFind < 0)
        return false;
    if (nFind == (int)Length()-1)
        return true;
    else return false;
}

template <class CharType>
bool CSimpleStringBase<CharType>::Load( HKEY hRegKey, const CharType *pszValueName, const CharType *pszDefault )
{
    bool bResult = false;
    Assign(pszDefault);
    DWORD nType=0;
    DWORD nSize=0;
    LONG nRet;
    if (IS_CHAR(*m_pstrData))
        nRet = RegQueryValueExA( hRegKey, (LPCSTR)pszValueName, NULL, &nType, NULL, &nSize);
    else nRet = RegQueryValueExW( hRegKey, (LPCWSTR)pszValueName, NULL, &nType, NULL, &nSize);
    if (ERROR_SUCCESS == nRet)
    {
        if ((nType == REG_SZ) || (nType == REG_EXPAND_SZ))
        {
            // Round up to the nearest 2
            nSize = ((nSize + 1) & 0xFFFFFFFE);
            CharType *pstrTemp = CreateStorage(nSize / sizeof(CharType));
            if (pstrTemp)
            {
                if (IS_CHAR(*m_pstrData))
                    nRet = RegQueryValueExA( hRegKey, (LPCSTR)pszValueName, NULL, &nType, (PBYTE)pstrTemp, &nSize);
                else nRet = RegQueryValueExW( hRegKey, (LPCWSTR)pszValueName, NULL, &nType, (PBYTE)pstrTemp, &nSize);
                if (ERROR_SUCCESS == nRet)
                {
                    Assign(pstrTemp);
                    bResult = true;
                }
                delete pstrTemp;
            }
        }
    }
    return bResult;
}

template <class CharType>
bool CSimpleStringBase<CharType>::Store( HKEY hRegKey, const CharType *pszValueName, DWORD nType )
{
    long nRet;
    if (Length())
    {
        if (IS_CHAR(*m_pstrData))
        {
            nRet = RegSetValueExA( hRegKey, (LPCSTR)pszValueName, 0, nType, (PBYTE)m_pstrData, sizeof(*m_pstrData)*(Length()+1) );
        }
        else
        {
            nRet = RegSetValueExW( hRegKey, (LPCWSTR)pszValueName, 0, nType, (PBYTE)m_pstrData, sizeof(*m_pstrData)*(Length()+1) );
        }
    }
    else
    {
        CharType strBlank = 0;
        if (IS_CHAR(*m_pstrData))
        {
            nRet = RegSetValueExA( hRegKey, (LPCSTR)pszValueName, 0, nType, (PBYTE)&strBlank, sizeof(CharType) );
        }
        else
        {
            nRet = RegSetValueExW( hRegKey, (LPCWSTR)pszValueName, 0, nType, (PBYTE)&strBlank, sizeof(CharType) );
        }
    }
    return(ERROR_SUCCESS == nRet);
}


//
// Two main typedefs
//
typedef CSimpleStringBase<char>     CSimpleStringAnsi;
typedef CSimpleStringBase<wchar_t>  CSimpleStringWide;

//
// LPCTSTR equivalents
//
#if defined(UNICODE) || defined(_UNICODE)
typedef CSimpleStringWide CSimpleString;
#else
typedef CSimpleStringAnsi CSimpleString;
#endif

//
// Operators
//
inline bool operator<( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) < 0;
}

inline bool operator<( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) < 0;
}

inline bool operator<=( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) <= 0;
}

inline bool operator<=( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) <= 0;
}

inline bool operator==( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) == 0;
}

inline bool operator==( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) == 0;
}

inline bool operator!=( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) != 0;
}

inline bool operator!=( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) != 0;
}

inline bool operator>=( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) >= 0;
}

inline bool operator>=( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) >= 0;
}

inline bool operator>( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    return a.Compare(b) > 0;
}

inline bool operator>( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    return a.Compare(b) > 0;
}

inline CSimpleStringWide operator+( const CSimpleStringWide &a, const CSimpleStringWide &b )
{
    CSimpleStringWide strResult(a);
    strResult.Concat(b);
    return strResult;
}

inline CSimpleStringAnsi operator+( const CSimpleStringAnsi &a, const CSimpleStringAnsi &b )
{
    CSimpleStringAnsi strResult(a);
    strResult.Concat(b);
    return strResult;
}

namespace CSimpleStringConvert
{
    inline
    CSimpleStringWide WideString( const CSimpleStringWide &strSource )
    {
        //
        // Just return the source string
        //
        return strSource;
    }


    inline
    CSimpleStringAnsi AnsiString( const CSimpleStringAnsi &strSource )
    {
        //
        // Just return the source string
        //
        return strSource;
    }

    inline
    CSimpleStringWide WideString( const CSimpleStringAnsi &strSource )
    {
        //
        // Declare the return value.  If anything goes wrong, it will contain an empty string
        //
        CSimpleStringWide strResult;

        //
        // Make sure we have a string
        //
        if (strSource.Length())
        {
            //
            // Find out how long it needs to be
            //
            int nLength = MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, strSource.String(), strSource.Length()+1, NULL, 0 );
            if (nLength)
            {
                //
                //  Allocate a temporary buffer to hold the converted string
                //
                LPWSTR pwszBuffer = new WCHAR[nLength];
                if (pwszBuffer)
                {
                    //
                    // Convert the string
                    //
                    if (MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, strSource.String(), strSource.Length()+1, pwszBuffer, nLength ))
                    {
                        //
                        // Save the result
                        //
                        strResult = pwszBuffer;
                    }
                    //
                    // Free the temporary buffer
                    //
                    delete[] pwszBuffer;
                }
            }
        }
        
        //
        // Return the result
        //
        return strResult;
    }

    inline
    CSimpleStringAnsi AnsiString( const CSimpleStringWide &strSource )
    {
        //
        // Declare the return value.  If anything goes wrong, it will contain an empty string
        //
        CSimpleStringAnsi strResult;

        //
        // Make sure we have a valid string
        //
        if (strSource.Length())
        {
            //
            // Figure out how long it needs to be
            //
            int nLength = WideCharToMultiByte( CP_ACP, 0, strSource, strSource.Length()+1, NULL, 0, NULL, NULL );
            if (nLength)
            {
                //
                // Allocate a temporary buffer to hold it
                //
                LPSTR pszBuffer = new CHAR[nLength];
                if (pszBuffer)
                {
                    //
                    // Convert the string
                    //
                    if (WideCharToMultiByte( CP_ACP, 0, strSource, strSource.Length()+1, pszBuffer, nLength, NULL, NULL ))
                    {
                        //
                        // Save the result
                        //
                        strResult = pszBuffer;
                    }                

                    //
                    // Save the temporary buffer
                    //
                    delete[] pszBuffer;
                }
            }
        }
        
        //
        // Return the result
        //
        return strResult;
    }

    inline
    CSimpleStringWide FromUtf8( const CSimpleStringAnsi &strSource )
    {
        //
        // Declare the return value.  If anything goes wrong, it will contain an empty string
        //
        CSimpleStringWide strResult;

        //
        // Make sure we have a valid source string
        //
        if (strSource.Length())
        {
            //
            // Find the required target string length
            //
            int nLength = MultiByteToWideChar( CP_UTF8, 0, strSource, strSource.Length()+1, NULL, 0 );
            if (nLength)
            {
                //
                // Allocate a temporary buffer
                //
                LPWSTR pwszBuffer = new WCHAR[nLength];
                if (pwszBuffer)
                {
                    //
                    // Convert the string
                    //
                    if (MultiByteToWideChar( CP_UTF8, 0, strSource.String(), strSource.Length()+1, pwszBuffer, nLength ))
                    {
                        //
                        // Save the result
                        //
                        strResult = pwszBuffer;
                    }

                    //
                    // Delete the temporary buffer
                    //
                    delete[] pwszBuffer;
                }
            }
        }
        
        //
        // Return the result
        //
        return strResult;
    }

    inline
    CSimpleStringAnsi ToUtf8( const CSimpleStringWide &strSource )
    {
        //
        // Declare the return value.  If anything goes wrong, it will contain an empty string
        //
        CSimpleStringAnsi strResult;

        //
        // Make sure we have a valid source string
        //
        if (strSource.Length())
        {
            int nLength = WideCharToMultiByte( CP_UTF8, 0, strSource, strSource.Length()+1, NULL, 0, NULL, NULL );
            if (nLength)
            {
                //
                // Find the required target string length
                //
                LPSTR pszBuffer = new CHAR[nLength];
                if (pszBuffer)
                {
                    //
                    // Convert the string
                    //
                    if (WideCharToMultiByte( CP_UTF8, 0, strSource, strSource.Length()+1, pszBuffer, nLength, NULL, NULL ))
                    {
                        //
                        // Save the result
                        //
                        strResult = pszBuffer;
                    }

                    //
                    // Delete the temporary buffer
                    //
                    delete[] pszBuffer;
                }
            }
        }

        //
        // Return the result
        //
        return strResult;
    }

#if defined(_UNICODE) || defined(UNICODE)
    template <class CharType>
    CSimpleStringWide NaturalString(const CharType &strSource)
    {
        return WideString(strSource);
    }
#else
    template <class CharType>
    CSimpleStringAnsi NaturalString(const CharType &strSource)
    {
        return AnsiString(strSource);
    }
#endif

    inline CSimpleString NumberToString( int nNumber, LCID Locale=LOCALE_USER_DEFAULT )
    {
        //
        // This turns a string into a number, like so: 3;2;0=32 or 3;0 = 3 or 1;2;3;4;5;6;0 = 123456.  Got it?
        //
        TCHAR szDigitGrouping[32] = {0};
        GetLocaleInfo( Locale, LOCALE_SGROUPING, szDigitGrouping, ARRAYSIZE(szDigitGrouping));
        
        //
        // Initialize the number format
        //
        NUMBERFMT NumberFormat = {0};
        for (LPTSTR pszCurr = szDigitGrouping; *pszCurr && *pszCurr >= TEXT('1') && *pszCurr <= TEXT('9'); pszCurr += 2)
        {
            NumberFormat.Grouping *= 10;
            NumberFormat.Grouping += (*pszCurr - TEXT('0'));
        }
        
        //
        // Get the thousands separator
        //
        TCHAR szThousandsSeparator[32] = {0};
        GetLocaleInfo( Locale, LOCALE_STHOUSAND, szThousandsSeparator, ARRAYSIZE(szThousandsSeparator));
        NumberFormat.lpThousandSep = szThousandsSeparator;

        //
        // Get the decimal separator
        //
        TCHAR szDecimalSeparator[32] = {0};
        GetLocaleInfo( Locale, LOCALE_SDECIMAL, szDecimalSeparator, ARRAYSIZE(szDecimalSeparator));
        NumberFormat.lpDecimalSep = szDecimalSeparator;

        //
        // Create the raw number string
        //
        TCHAR szRawNumber[MAX_PATH] = {0};
        _sntprintf( szRawNumber, ARRAYSIZE(szRawNumber)-1, TEXT("%d"), nNumber );
        
        //
        // Format the string
        //
        TCHAR szNumberStr[MAX_PATH] = {0};
        if (GetNumberFormat( Locale, 0, szRawNumber, &NumberFormat, szNumberStr, ARRAYSIZE(szNumberStr)))
        {
            return szNumberStr;
        }
        else
        {
            return TEXT("");
        }
    }
}  // End CSimpleStringConvert namespace


//
// Restore the warning state
//
#pragma warning( pop )

#endif  // ifndef _SIMSTR_H_INCLUDED