//----------------------------------------------------------------------------
//  EgalTech 2013-2014
//----------------------------------------------------------------------------
// File : EGnScanner.h           Data : 06.03.14          Versione : 1.5c1
// Contenuto : Dichiarazione della classe CScan.
//
//
//
// Modifiche : 20.11.13 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include <string>

struct gzFile_s ;

//----------------------- Macro per import/export -----------------------------
#undef EGN_EXPORT
#if defined( I_AM_EGN)            // da definirsi solo nella DLL
   #define EGN_EXPORT __declspec( dllexport)
#else
   #define EGN_EXPORT __declspec( dllimport)
#endif

//----------------------------------------------------------------------------
class Scanner
{
   public :
      EGN_EXPORT Scanner( void)
                    : m_InFile( nullptr), m_bSkipEmptyLine( true), m_nLineNbr( 0), m_bUnget( false), m_nDeltaLineUnget(0) {}
      EGN_EXPORT ~Scanner( void)
                    { Terminate() ; }
      EGN_EXPORT bool Init( const std::string& sFile,
                            const char* szRemInit = "//", bool bSkipEmptyLine = true) ;
      EGN_EXPORT bool Terminate( void) ;
      EGN_EXPORT bool GetLine( std::string& sLine) ;
      EGN_EXPORT bool UngetLine( std::string& sLine) ;
      EGN_EXPORT int  GetCurrLineNbr( void)
                         { return m_nLineNbr ; }
      EGN_EXPORT const std::string& GetFilePath( void)
                         { return m_sFName ; }

   private :
      gzFile_s*     m_InFile ;
      std::string   m_sFName ;
      bool          m_bFindRem ;
      std::string   m_sRemInit ;
      bool          m_bSkipEmptyLine ;
      int           m_nLineNbr ;
      bool          m_bUnget ;
      std::string   m_sUnget ;
      int           m_nDeltaLineUnget ;
} ;