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    ========== licence begin  GPL
    Copyright (c) 2000-2004 SAP AG

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    ========== licence end

#if !defined(ZSTRING_H)
#define ZSTRING_H

#include <stdarg.h>

#include "geo00.h"

// ******************************************************************************
#ifdef  ZStringImport
#undef  ZStringImport
#define ZStringImport __declspec(dllimport)
#define ZStringImport
#ifdef  ZStringExport
#undef  ZStringExport
#define ZStringExport __declspec(dllexport)
#define ZStringExport
// ******************************************************************************
class ZStringImport ZStringExport ZString  
      char* m_Buf;
      int         m_Length;
      int         m_Alloc;
      int         m_AllocInitalSize;
      int         m_AllocIncrement;
                  ZString(int initAlloc,int incrAlloc);
                  ZString(const char* s);
                  ZString(const char* s,int l);
                  ZString(const ZString& s);
      virtual ~ZString();

      int         GetSize()   const                   { return m_Length;};
      int         GetAllocSize()                            { return m_Alloc;};
      bool  SetAllocIncrement(int incrAlloc);
      bool  SetSize(int l,bool useAllocIncr);
      bool  SetBuf( const ZString& s);
      bool  SetBuf(const char* s);
      bool  SetBuf( const char* s,int l);

      bool  Add( const ZString& s);
      bool  Add(const char* s);
      bool  Add(const char* s,int l);
      bool  AddPrefix(const ZString& s);
      bool  AddPrefix(const char* s);
      bool  AddPrefix(const char* s,int l);

      char& operator [](int idx);

      operator char*() const;
      ZString& operator =(const char* s);
      ZString& operator =(const ZString& s);

      ZString& operator +=(const ZString& s);
      ZString& operator +=(const char* s);

//    bool  Format(char* fmt,char* s);
//    bool  Format(char* fmt,char* s1,char* s2);
      bool  Format(const char* format, ...);

      bool  Break(ZString& s1,ZString& s2,char breakChar);
      bool  RBreak(ZString& s1,ZString& s2,char breakChar);
      bool  Break(unsigned int len,ZString& s1,ZString& s2);
      bool  RBreak(unsigned int len,ZString& s1,ZString& s2);

      char& Last();

      bool  Find(char c,int& pos,int startPos=0);
      bool  Find(char* s,int l,int& pos,int startPos=0);
      bool  Find(ZString& s,int& pos,int startPos=0);
      bool  RFind(char c,int& pos,int startPos=-1);
      bool  RFind(char* s,int l,int& pos,int startPos=-1);
      bool  RFind(ZString& s,int& pos,int startPos=-1);

      bool  operator ==(const ZString& s);
      bool  operator ==(const char* s);
      bool  operator !=(const ZString& s);
      bool  operator !=(const char* s);

      bool  SubString(ZString& subString,int startPos,int endPos=-1);

      bool  CharToHex(char* s,int l,bool upperHex=true);
      bool  HexToChar(char* s,int l);
      bool  Base64Decode(char* in,int lIn);

      bool  RemoveChars(char c);
      bool  RemoveChars(char c,bool trailing);

      void  Init(int initAlloc,int incrAlloc);
#ifdef WIN32
      bool  FormatV(char* format, va_list argList);

// ******************************************************************************
#endif // !defined(ZSTRING_H)

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