bbtkInterpreterVirtual.cxx

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/*=========================================================================                                                                               
  Program:   bbtk
  Module:    $RCSfile: bbtkInterpreter.cxx,v $
  Language:  C++
  Date:      $Date: 2010/09/14 07:18:46 $
  Version:   $Revision: 1.88 $
=========================================================================*/

/* ---------------------------------------------------------------------

* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
*
*  This software is governed by the CeCILL-B license under French law and 
*  abiding by the rules of distribution of free software. You can  use, 
*  modify and/ or redistribute the software under the terms of the CeCILL-B 
*  license as circulated by CEA, CNRS and INRIA at the following URL 
*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
*  or in the file LICENSE.txt.
*
*  As a counterpart to the access to the source code and  rights to copy,
*  modify and redistribute granted by the license, users are provided only
*  with a limited warranty  and the software's author,  the holder of the
*  economic rights,  and the successive licensors  have only  limited
*  liability. 
*
*  The fact that you are presently reading this means that you have had
*  knowledge of the CeCILL-B license and that you accept its terms.
* ------------------------------------------------------------------------ */                                                                         

#include "bbtkInterpreterVirtual.h"
//#include "bbtkTranscriptor.h"
#include "bbtkConfigurationFile.h"
#include "bbtkUtilities.h"
//#include "bbtkAtomicBlackBox.h"
//#include "bbtkWxBlackBox.h"
#include <sys/stat.h>
#include <algorithm>
#ifdef CMAKE_HAVE_TERMIOS_H
#include <termios.h>
#define BBTK_USE_TERMIOS_BASED_PROMPT
#endif

#include <string>

namespace bbtk
{

 //=======================================================================
        InterpreterVirtual::Pointer InterpreterVirtual::New() 
  {
    bbtkDebugMessage("kernel",9,"InterpreterVirtual::New()"<<std::endl);
    return MakePointer( new InterpreterVirtual() );
  }
 //=======================================================================

 //=======================================================================
  InterpreterVirtual::InterpreterVirtual() 
  {
    Init();
  }
  //=======================================================================


  //=======================================================================
  void InterpreterVirtual::Init() 
  {
    mUser                       = 0;
    mCommandLine        = false;
    mThrow                      = false;
    bufferNb            = 0;  
    bbtk::MessageManager::RegisterMessageType("echo","Level>0 : Prints the output of the 'print' commands of the user.\n\tLevel>1 : Prints the command being interpreted",1);
    bbtk::MessageManager::RegisterMessageType("Interpreter","Messages of the interpreter",0);
    bbtkDebugMessageInc("Interpreter",9,"InterpreterVirtual::Interpreter()" <<std::endl);

    // For the time being, comment out previous line, and
    // uncomment next line to check Transcriptor

    //mVirtualExecuter = new bbtk::Transcriptor("GeneratedProgram.txt");

    // Builds the commands dict
    CommandInfoType info;
   
    info.keyword = "new";
    info.argmin = 2;
    info.argmax = 2;
    info.code = cNew;
    info.syntax = "new <type> <name>";
    info.help = "Creates a new black box of type <type> with name <name>";
    mCommandDict[info.keyword] = info;
    
    info.keyword = "delete";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cDelete;
    info.syntax = "delete <box>";
    info.help = "Deletes the black box of name <box>";
    mCommandDict[info.keyword] = info;

    info.keyword = "clear";
    info.argmin = 0;
    info.argmax = 0;
    info.code = cClear;
    info.syntax = "clear";
    info.help = "Clears the currently defined complex box (deletes all its boxes and connections)";
    mCommandDict[info.keyword] = info;

    info.keyword = "break";
    info.argmin = 0;
    info.argmax = 0;
    info.code = cBreak;
    info.syntax = "break";
    info.help = "Breaks the current execution";
    mCommandDict[info.keyword] = info;

    info.keyword = "newgui";
    info.argmin = 2;
    info.argmax = 2;
    info.code = cNewGUI;
    info.syntax = "newgui <box> <name>";
    info.help = "Automatically creates a graphical user interface with name <name> for the black box <box> and connects it to the box inputs";
    mCommandDict[info.keyword] = info;

    info.keyword = "connect";
    info.argmin = 2;
    info.argmax = 2;
    info.code = cConnect;
    info.syntax = "connect <box1.output> <box2.input>";
    info.help = "Connects the ouput <output> of black box <box1> to the input <input> of black box <box2>";
    mCommandDict[info.keyword] = info;

    info.keyword = "print";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cPrint;
    info.syntax = "print <string>";
    info.help = "Prints the string. Substitutes any token of the form '$box.output$' by the string adaptation of the output of the box (requires the right adaptor). No carriage return is issued at the end, use '\\n' to add carriage returns. The level of 'echo' messages must be greater than 1 (see the command 'message').";
    mCommandDict[info.keyword] = info;

    info.keyword = "exec";
    info.argmin = 1;
    info.argmax = 2;
    info.code = cExec;
    info.syntax = "exec <box | 'freeze' | 'unfreeze' | 'freeze_no_error' >";
    info.help = "Executes the black box of name <box> (and connected boxes if needed). If the special keyword 'freeze' is given then freezes any further execution command. 'unfreeze' reverts to normal execution mode. 'freeze_no_error' is like freeze but also skips any error.";
    mCommandDict[info.keyword] = info;

    info.keyword = "package";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cPackage;
    info.syntax = "package <name>";
    info.help = "Begins the definition of a package.";
    mCommandDict[info.keyword] = info;
    
    info.keyword = "endpackage";
    info.argmin = 0;
    info.argmax = 0;
    info.code = cEndPackage;
    info.syntax = "endpackage";
    info.help = "Ends the definition of a package.";
    mCommandDict[info.keyword] = info;

    info.keyword = "define";
    info.argmin = 1;
    info.argmax = 2;
    info.code = cDefine;
    info.syntax = "define <type> [<package>]";
    info.help = "Begins the definition of a new type of complex black box called <type>. If <package> is provided will create it in the given package.";
    mCommandDict[info.keyword] = info;
    
    info.keyword = "endefine";
    info.argmin = 0;
    info.argmax = 0;
    info.code = cEndDefine;
    info.syntax = "endefine";
    info.help = "Ends the definition of a new type of complex black box";
    mCommandDict[info.keyword] = info;

    info.keyword = "kind";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cKind;
    info.syntax = "kind <ADAPTOR|DEFAULT_ADAPTOR|GUI|DEFAULT_GUI>";
    info.help = "Sets the kind of the currently defined complex black box";
    mCommandDict[info.keyword] = info;

    info.keyword = "input";
    info.argmin = 3;
    info.argmax = 3;
    info.code = cInput;
    info.syntax = "input <name> <box.input> <help>";
    info.help = "Defines the input <name> of the current working black box as being an alias for the input <input> of the black box <box>. <help> defines the help string for the newly created input";
    mCommandDict[info.keyword] = info;

    info.keyword = "output";
    info.argmin = 3;
    info.argmax = 3;
    info.code = cOutput;
    info.syntax = "output <name> <box.output> <help>";
    info.help = "Defines the output <name> of the current working black box as being an alias for the output <output> of the black box <box>. <help> defines the help string for the newly created output";
    mCommandDict[info.keyword] = info;

    info.keyword = "set";
    info.argmin = 2;
    info.argmax = 2;
    info.code = cSet;
    info.syntax = "set <box.input> <value>";
    info.help = "Sets the value of the input <input> of the black box <box> to <value>. There must exist a string to the value type adaptor";
    mCommandDict[info.keyword] = info;
   
    info.keyword = "config";  // JPR
    info.argmin = 0;
    info.argmax = 0;
    info.code = cConfig;
    info.syntax = "config";
    info.help = "Prints the value of all configuration parameters";
    mCommandDict[info.keyword] = info;

    info.keyword = "index";  // LG
    info.argmin = 0;
    info.argmax = 2;
    info.code = cIndex;

    info.syntax = "index [<filename> ['Initials'(default)|'Packages'|'Categories'|'Adaptors']]";
    info.help = "Creates an html index of known boxes. If filename is provided then save it to the file 'filename'. The default index entries are the initial letters of the names of the boxes. If 'Packages' or 'Categories' is provided then the entries are either the packages names or the categories. If 'Adaptors' is provided then an alphabetical index of all adaptors is created.";
    mCommandDict[info.keyword] = info;

    info.keyword = "reset";  
    info.argmin = 0;
    info.argmax = 0;
    info.code = cReset;
    info.syntax = "reset";
    info.help = "Deletes all boxes and unloads all packages (reset to start state)";
    mCommandDict[info.keyword] = info;

    info.keyword = "author";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cAuthor;
    info.syntax = "author <string>";
    info.help = "Adds the string <string> to the author information of the black box being defined";
    mCommandDict[info.keyword] = info;
    
    info.keyword = "category"; //JP
    info.argmin = 1;
    info.argmax = 1;
    info.code = cCategory;
    info.syntax = "category <list of items, separated by ;>";
    info.help = "Adds the string <string> to the category information of the black box being defined";
    mCommandDict[info.keyword] = info;

    info.keyword = "description";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cDescription;
    info.syntax = "description <string>";
    info.help = "Adds the string <string> to the descriptive information of the black box being defined";
    mCommandDict[info.keyword] = info;

    info.keyword = "help";
    info.argmin = 0;
    info.argmax = 2;
    info.code = cHelp;
    info.syntax = "help";
    info.syntax = "\n         (1) help \n         (2) help <command name> \n         (3) help packages [all]\n         (4) help <package name> [all]\n         (5) help <black box type> \n         (6) help <black box name>";
    info.help = "Effect :\n         (1) Lists all available commands;\n         (2) Prints help on a particular command; \n         (3) Lists the packages loaded and their black boxes.\n             Add 'all' to list adaptors; \n         (4) Prints short help on the black boxes of a package.\n             Add 'all' to include adaptors; \n         (5) Prints full help on a black box type; \n         (6) Prints information on the inputs, outputs and connections of a black box instance.";
    mCommandDict[info.keyword] = info;

    info.keyword = "message";
    info.argmin = 0;
    info.argmax = 2;
    info.code = cMessage;
    info.syntax = "message <kind> <level>";
    info.help = "Sets the level of the kind of messages <kind> to <level>.\n  If kind='All' then sets the level for all kinds. If no kind nor level is passed then prints info on available kinds of messages and their current level.";  
    mCommandDict[info.keyword] = info;

    info.keyword = "include";
    info.argmin = 1;
    info.argmax = 2;
    info.code = cInclude;
    info.syntax = "include <filename> [source]";
    info.help = "Includes the file <filename>.\n  'source' : If the keyword 'source' is provided then informs the interpreter that the included file is the source of the current box definition (Advanced; used to get the right 'Include' field in html doc of packages 'appli' scripts).";
    mCommandDict[info.keyword] = info;

    info.keyword = "quit";
    info.argmin = 0;
    info.argmax = 0;
    info.code = cQuit;
    info.syntax = "quit";
    info.help = "Quits the program (during script execution it stops the complete execution)";
    mCommandDict[info.keyword] = info;

    info.keyword = "load";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cLoad;
    info.syntax = "load <packagename>";
    info.help = "Loads the black box package <packagename>";
    mCommandDict[info.keyword] = info;

    info.keyword = "unload";
    info.argmin = 1;
    info.argmax = 1;
    info.code = cUnload;
    info.syntax = "unload <packagename>";
    info.help = "Unloads the black box package <packagename>";
    mCommandDict[info.keyword] = info;

    info.keyword = "graph";
    info.argmin = 0;
    info.argmax = 6;
    info.code = cGraph;
    info.syntax = "graph [ BlackBoxName [ Detail 0..1 [ Level 0..99999 [ Output html file [ Custom header [ Custom title ]]]]]] \n         graph [ BlackBoxNameType [ Detail 0..1 [ Level 0..99999 [ Output html file [ Custom header [ Custom title ]]]]]]";
    info.help = "Shows a graphical view of a bbtk pipeline.\n- BlackBoxName : name of the box to view. Default '.' : current box.\n- BlackBoxNameType : name of the type of box to view, ex : 'workspace')";
    mCommandDict[info.keyword] = info;

    info.keyword = "debug";
    info.argmin = 0;
    info.argmax = 1;
    info.code = cDebug;
    info.syntax = "debug [expr|-C|-D]";
    info.help = "Prints debug info on living bbtk objects containing the string 'expr' (default expr=''). -C checks the factory integrity. -D turns on objects debug info after main ends";
    mCommandDict[info.keyword] = info;

    /*
    info.keyword = "workspace";
    info.argmin = 1;
    info.argmax = 2;
    info.code = cWorkspace;
    info.syntax = "workspace < ( freeze | unfreeze ) | ( rename <newname> ) >";
    info.help = "Configures the workspace.\n        'freeze' allows to block execution commands while keeping definition commands active. 'unfreeze' turns back the worspace in 'normal' mode.\n      'rename' allow to set a new name to the workspace.";
    mCommandDict[info.keyword] = info;
    */



  } 
  //=======================================================================
  
  
  
  //=======================================================================  
  InterpreterVirtual::~InterpreterVirtual()
  {
    bbtkDebugMessage("object",2,"==> ~Interpreter()" <<std::endl);
  }
  //=======================================================================


  //=======================================================================
  InterpreterException::InterpreterException( const std::string& message,
                                      bool in_script_file,
                                      const std::string& script_file,
                                      int script_line 
                                      )
    : Exception("interpreter",0,message),
      mInScriptFile(in_script_file),
      mScriptFile(script_file),
      mScriptLine(script_line)
  {
  }
  //=======================================================================
  //=======================================================================
  InterpreterException::InterpreterException( const Exception& excep,
                      bool in_script_file,
                      const std::string& script_file,
                      int script_line 
                      )
    : Exception(excep),
      mInScriptFile(in_script_file),
      mScriptFile(script_file),
      mScriptLine(script_line)
  {
  }
  //=======================================================================


  //=======================================================================
  void InterpreterVirtual::CatchInterpreterException( const InterpreterException& e )
  {
//EED Borrame     if (GetExecuter()->GetNoErrorMode()) 
//EED Borrame       {
//EED Borrame         bbtkWarning("ERROR :"<<e.GetErrorMessage()
//EED Borrame               <<" ("<<e.GetScriptFile()<<":"<<e.GetScriptLine()
//EED Borrame               <<" skipped");
//EED Borrame   return;
//EED Borrame       }
          if (mThrow) 
      {
                  if (e.GetErrorMessage()!="break")
                  {
                          mStatus = Interpreter_ERROR;         
                          CloseAllFiles();
                  }
                  throw InterpreterException(e);
      } else {
                  std::stringstream mess;
                  mess << "* ERROR : "<<e.GetErrorMessage()<<std::endl;
                  if (e.IsInScriptFile())
                  {
                          mess << "* FILE  : \""<<e.GetScriptFile()<<"\""<<std::endl;
                          mess << "* LINE  : "<<e.GetScriptLine()<<std::endl;
                  }
                  CloseAllFiles();
                  std::cerr << mess.str();
      } // if
  }
  //=======================================================================

  //=======================================================================
  void InterpreterVirtual::CatchBbtkException( const bbtk::Exception& e )
  {
//EED Borrame     if (GetExecuter()->GetNoErrorMode()) 
//EED Borrame       {
//EED Borrame   std::string file("?");
//EED Borrame   int line = 0;
//EED Borrame   if (mFileName.size()) {
//EED Borrame     file = mFileName.back();
//EED Borrame     line = mLine.back();
//EED Borrame   }    
//EED Borrame   bbtkWarning("ERROR '"<<e.GetErrorMessage()
//EED Borrame               <<"' ("<<file<<":"<<line<<") skipped");
//EED Borrame   return;
//EED Borrame      }
          
    mStatus = Interpreter_ERROR;               
    if (mThrow) 
        {
                bool in_script = false;
                std::string file("");
                int line = 0;
                if (mFileName.size()) 
                {
                        std::ifstream* fs = dynamic_cast<std::ifstream*>(mFile.back());
                        if (fs!=0) in_script = true;      
                        file = mFileName.back();
                        line = mLine.back();
                }   
                if (e.GetErrorMessage()!="break")
                        CloseAllFiles();
                throw InterpreterException(e,in_script,file,line);
        } else {
                std::stringstream mess;
                mess << "* ERROR : "<<e.GetErrorMessage()<<std::endl;
                if (mFileName.size()) 
                {
                        mess << "* FILE  : \""<<mFileName.back()<<"\""<<std::endl;
                        mess << "* LINE  : "<<mLine.back()<<std::endl;
                }    
                CloseAllFiles();
                std::cerr << mess.str();
        } // if
  }
  //=======================================================================
  
  //=======================================================================
  void InterpreterVirtual::CatchStdException( const std::exception& e )
  {  
//EED Borrame   if (GetExecuter()->GetNoErrorMode()) 
//EED Borrame      {
//EED Borrame   std::string file("?");
//EED Borrame   int line = 0;
//EED Borrame   if (mFileName.size()) {
//EED Borrame     file = mFileName.back();
//EED Borrame     line = mLine.back();
//EED Borrame   }    
//EED Borrame   bbtkWarning("ERROR '"<<e.what()
//EED Borrame               <<"' ("<<file<<":"<<line<<") skipped");
//EED Borrame   return;
//EED Borrame      }
          
    mStatus = Interpreter_ERROR;               
        if (mThrow) 
        {
                bool in_script = false;
                std::string file("");
                int line = 0;
                if (mFileName.size()) {
                        std::ifstream* fs = dynamic_cast<std::ifstream*>(mFile.back());
                        if (fs!=0) in_script = true;      
                        file = mFileName.back();
                        line = mLine.back();
                }    
                CloseAllFiles();
                throw InterpreterException(e.what(),in_script,file,line);
        } else {
                std::stringstream mess;
                mess << "* ERROR : "<<e.what()<<std::endl;
                if (mFileName.size()) 
                {
                        mess << "* FILE  : \""<<mFileName.back()<<"\""<<std::endl;
                        mess << "* LINE  : "<<mLine.back()<<std::endl;
                }    
                CloseAllFiles();
                std::cerr << mess.str();
        }
  }
        
  //=======================================================================

  //=======================================================================
  void InterpreterVirtual::CatchUnknownException()
  {
//EED Borrame   if (GetExecuter()->GetNoErrorMode()) 
//EED Borrame       {
//EED Borrame   std::string file("?");
//EED Borrame   int line = 0;
//EED Borrame   if (mFileName.size()) {
//EED Borrame     file = mFileName.back();
//EED Borrame     line = mLine.back();
//EED Borrame   }
//EED Borrame           bbtkWarning("UNDEFINED ERROR "
//EED Borrame                       <<"("<<file<<":"<<line<<") skipped");
//EED Borrame           return;
//EED Borrame         }
    mStatus = Interpreter_ERROR;               
    if (mThrow) 
      {
        bool in_script = false;
        std::string file("");
        int line = 0;
        if (mFileName.size()) {
          std::ifstream* fs = dynamic_cast<std::ifstream*>(mFile.back());
          if (fs!=0) in_script = true;    
          file = mFileName.back();
          line = mLine.back();
        }    
        CloseAllFiles();
        throw InterpreterException("Unknown exception caught",
                                   in_script,file,line);
      }
    else
      {
        std::stringstream mess;
        mess << "* UNDEFINED ERROR (not a bbtk nor a std exception)" 
             << std::endl;
        if (mFileName.size()) {
          mess << "* FILE  : \""<<mFileName.back()<<"\""<<std::endl;
          mess << "* LINE  : "<<mLine.back()<<std::endl;
        }    
        CloseAllFiles();
        std::cerr << mess.str();
      }
  }
  //=======================================================================

  //=======================================================================
  
#define CATCH_MACRO                                     \
  catch (InterpreterException e)                        \
    {                                                   \
      CatchInterpreterException(e);                     \
    }                                                   \
  catch (bbtk::Exception e)                             \
    {                                                   \
      CatchBbtkException(e);                            \
    }                                                   \
  catch (std::exception& e)                             \
    {                                                   \
      CatchStdException(e);                             \
    }                                                   \
  catch (...)                                           \
    {                                                   \
      CatchUnknownException();                          \
    }                                           
  //=======================================================================
   

  //=======================================================================
  InterpreterVirtual::ExitStatus InterpreterVirtual::InterpretFile( const std::string& filename, bool source )
  {
          bbtkDebugMessage("interpreter",4,"==> InterpreterVirtual::InterpretFile(\""<<filename<<"\")"<<std::endl);

    bool exm = mCommandLine;
    mCommandLine = false;

    try 
    {
      mStatus = Interpreter_OK;
      SwitchToFile(filename,source);
      mInsideComment = false;
      InterpretCurrentStreams();
    } 
    CATCH_MACRO;
    
    bbtkDebugMessage("interpreter",4,
                     "<== InterpreterVirtual::InterpretFile(\""
                     <<filename<<"\")"<<std::endl);


    mCommandLine = exm;

    return mStatus;
  }
  //=======================================================================


  //=======================================================================
  InterpreterVirtual::ExitStatus 
  InterpreterVirtual::InterpretBuffer( std::stringstream* buffer )
  {
    bbtkDebugMessage("interpreter",4,"==> InterpreterVirtual::InterpretBuffer()"<<std::endl);

    bool exm = mCommandLine;
    mCommandLine = false;

    try 
    {
      mStatus = Interpreter_OK;
      SwitchToStream(buffer);
      mInsideComment = false;
      InterpretCurrentStreams();
    }
    CATCH_MACRO;
    
    //    CloseAllFiles();
    bbtkDebugMessage("interpreter",4,"<== InterpreterVirtual::InterpretBuffer()"<<std::endl);

    
    mCommandLine = exm;
    return mStatus;
  }
  //=======================================================================

  //=======================================================================
  InterpreterVirtual::ExitStatus InterpreterVirtual::InterpretCurrentStreams()
  {
    bbtkDebugMessage("interpreter",4,
                     "==> InterpreterVirtual::InterpretCurrentStreams()"<<std::endl);

    while (mFile.size()>0) 
      {
        while (!mFile.back()->eof()) {
          mLine.back()++;
          char buf[500];
          mFile.back()->getline(buf,500);
          std::string str(buf);
          //size 0 JCP 21-09-2009
          int size=str.length();
          if(size != 0){
                  if ( str[ size-1 ]==13  )
            {
              str.erase(size-1,1);
            }
                  try
                        {
                          DoInterpretLine(str);
                        }
                  CATCH_MACRO;
          }
          
        } 
        CloseCurrentFile();
      }
    bbtkDebugMessage("interpreter",4,
                     "<== InterpreterVirtual::InterpretCurrentStreams()"<<std::endl);

    return mStatus;
  }
  //=======================================================================

  //=======================================================================
  InterpreterVirtual::ExitStatus InterpreterVirtual::InterpretLine( const std::string& line )
  {
    bbtkDebugMessage("interpreter",5,"==> InterpreterVirtual::InterpretLine('"<<line<<"')"<<std::endl);

    try 
    {
      mStatus = Interpreter_OK;
      mInsideComment = false;
//std::cout<<"JCP bbtkInterpreter.cxx InterpreterVirtual::InterpretLine("<<std::endl;
      DoInterpretLine(line );
    }
    CATCH_MACRO;
    
    
   bbtkDebugMessage("interpreter",5,"<== InterpreterVirtual::InterpretLine('"<<line<<"')"<<std::endl);
    
    return mStatus;
  }
  //=======================================================================  
  
        void InterpreterVirtual::commandNew(const std::string &boxType, const std::string &boxName) // virtual 
    {
    }
        
        void InterpreterVirtual::commandDelete(const std::string &boxName)
    {
    }

        void InterpreterVirtual::commandConnection(const std::string &nodeFrom,const std::string &outputLabel,const std::string &nodeTo,const std::string &inputLabel)
    {
    }
                
        void InterpreterVirtual::commandPackage(const std::string &packageName)
    {
    }
        
        void InterpreterVirtual::commandEndPackage()
    {
    }
        
        void InterpreterVirtual::commandDefine(const std::string &name,const std::string &pack,const std::string &scriptfilename)
    {
    }

        void InterpreterVirtual::commandEndDefine()
    {
    }

        void InterpreterVirtual::commandKind(const std::string &kind)
    {
    }
        
        void InterpreterVirtual::commandPrint(const std::string &value)
    {
    }
        
        
        void InterpreterVirtual::commandExec(const std::string &word)
    {
    }
        
        
        void InterpreterVirtual::commandInput(const std::string &name,const std::string &box,const std::string &input,const std::string  &help)
    {
    }
        
        void InterpreterVirtual::commandOutput(const std::string &name,const std::string &box,const std::string &output,const std::string  &help)
    {
    }
        
        void InterpreterVirtual::commandSet(const std::string &box,const std::string &input,const std::string &value)
    {
    }

        void InterpreterVirtual::commandAuthor(const std::string &author)
    {
    }

        void InterpreterVirtual::commandCategory(const std::string &categorytype)
    {
    }
        
        
        
        void InterpreterVirtual::commandDescription(const std::string &description)
    {
    }

        
        void InterpreterVirtual::commandClear()
    {
    }
        
        void InterpreterVirtual::commandInclude(const std::string &word, bool ok)
    {
    }
        
        
        void InterpreterVirtual::commandLoad(const std::string &packageName)
    {
    }

        void InterpreterVirtual::commandUnload(const std::string &packageName)
    {
    }
        
        void InterpreterVirtual::commandBreak()
    {
    }
        
        void InterpreterVirtual::commandQuit()
    {
    }
        
        void InterpreterVirtual::commandMessage()
    {
    }
        
        void InterpreterVirtual::commandMessage(const std::string &kind,const std::string &levelstr)
    {
    }
        
        
        
  //=======================================================================  
  void InterpreterVirtual::DoInterpretLine( const std::string& line )
  {
          
    bbtkDebugMessage("interpreter",6,"==> InterpreterVirtual::DoInterpretLine(\""
                     <<line<<"\")"<<std::endl);
    std::vector<std::string> words;
    SplitLine(line,words);

          
          
    // Empty line
    if (words.size()<1) 
    {
       bbtkDebugDecTab("interpreter",9);
       return;
    }

    // Single line comment : # or //
    if ( words[0][0]=='#' || (words[0][0]=='/' && words[0][1]=='/') ) 
    {  
       bbtkDebugDecTab("interpreter",9);
       bbtkMessage("interpreter",9,"Comment"<<std::endl);
       return;
    }

    // Multi line comment ( /* ... */ ) -delimiters on different lines !-
    
    if (words[0][0]=='/' && words[0][1]=='*') 
    {  
       bbtkDebugDecTab("interpreter",9);
       bbtkMessage("interpreter",9,"In multiline comment"<<std::endl);
       mInsideComment = true;
       return;
    }

    if (words[0][0]=='*' && words[0][1]=='/') 
    {  
       bbtkDebugDecTab("interpreter",9);
       bbtkMessage("interpreter",9,"Out multiline comment"<<std::endl);
       if ( !mInsideComment ) {
          bbtkDebugDecTab("interpreter",9);
          bbtkMessage("interpreter",9,"Comment mismatch : '*/' with no matching '/*'"<<std::endl);       
       }
       mInsideComment = false;
       return;
    }

    if (mInsideComment) 
    {  
       bbtkDebugDecTab("interpreter",9);
       bbtkMessage("interpreter",9,"Multiline Comment"<<std::endl);
       return;
    }
          

    // Command 
    CommandInfoType command;
    InterpretCommand(words,command);
//std::cout<<"JCP bbtkInterpreter command.keyword ="<<command.keyword<<std::endl;
    bbtkDebugMessage("interpreter",9,
                     "Command='"<<command.keyword
                      <<"' code="<<command.code<<std::endl); 
          
    std::string left,right,left2,right2;
    std::string filename;

    // message command
    if (command.code==cMessage)
      {
        if (words.size()<3)
          {
                  commandMessage();
//EED Borrame       mVirtualExecuter->HelpMessages();
          }
        else
          {
                commandMessage(words[1],words[2]);
//EED Borrame           sscanf(words[2].c_str(),"%d",&level);
//EED Borrame       mVirtualExecuter->SetMessageLevel(words[1],level);
          }
        return;
      }
    else 
      {
        bbtkMessage("echo",2,line<<std::endl);
      }

    // break and quit commands
    if ((command.code==cBreak) || (command.code==cQuit))
      {
        bool in_script = false;
        std::string file("");
        int line = 0;

        if (mFileName.size()) 
          {
            std::ifstream* fs = dynamic_cast<std::ifstream*>(mFile.back());
            if (fs!=0) in_script = true;          
            file = mFileName.back();
            line = mLine.back();
          } 
        if (command.code==cBreak)
          {
            /*
            std::cout << "BreakException(" 
                      <<in_script<<","
                      <<file<<","
                      <<line<<")"<<std::endl;
            */
                  commandBreak();
//EED Borrame       bbtkError("break");//,in_script,file,line);
            //      throw BreakException(in_script,file,line);
          }       
        else 
          {
                  commandQuit();
//EED Borrame       bbtkError("quit");//,in_script,file,line);
              //throw QuitException(in_script,file,line);
          }
        return;
      }   
//std::cout<<" mVirtualExecuter->Create(words[1],words[2]); "<<line<<std::endl;
    // other cammands

          
    switch (command.code) 
      {
      case cNew :
                commandNew(words[1],words[2]);
//EED Borrame        mVirtualExecuter->Create(words[1],words[2]);
        break;

      case cDelete :
                          commandDelete(words[1]);
//EED Borrame   mVirtualExecuter->Destroy(words[1]);
        break;

      case cConnect :
        Utilities::SplitAroundFirstDot(words[1],left,right);
        Utilities::SplitAroundFirstDot(words[2],left2,right2);      
        commandConnection(left,right,left2,right2);
//EED Borrame        mVirtualExecuter->Connect(left,right,left2,right2);
        break;

      case cPackage :
                          commandPackage(words[1]);
//EED Borrame                mVirtualExecuter->BeginPackage(words[1]);
        break;

      case cEndPackage :
                          commandEndPackage();
//EED Borrame        mVirtualExecuter->EndPackage();
        break;

      case cDefine :
        if (mFileName.size()>0) 
        {
//???                   commandDefine(????);
                   filename = mFileName.back(); //mIncludeFileName.back(); //Utilities::get_file_name(mFileName.back());
        }
        if (words.size()==2) 
        {
                        std::string packTmp = "";
                        commandDefine(words[1],packTmp,filename);
//EED Borrame           mVirtualExecuter->Define(words[1],"",filename);
        }
        else
        {
                        commandDefine(words[1],words[2],filename);
//EED Borrame           mVirtualExecuter->Define(words[1],words[2],filename);
        }
        break;

      case cEndDefine :
                commandEndDefine();
//EED Borrame        mVirtualExecuter->EndDefine();
        break;

      case cKind :
                        commandKind(words[1]);
//EED Borrame        mVirtualExecuter->Kind(words[1]);
        break;

      case cPrint :
                          commandPrint(words[1]);
//EED Borrame        mVirtualExecuter->Print(words[1]);
        break;
                          
      case cExec :
                          commandExec(words[1]);
//EED Borrame        if (words[1]=="freeze") 
//EED Borrame     {
//EED Borrame       mVirtualExecuter->SetNoExecMode(true);
//EED Borrame       mThrow = false;
//EED Borrame     }
//EED Borrame   else if (words[1]=="freeze_no_error") 
//EED Borrame     {
//EED Borrame       mVirtualExecuter->SetNoExecMode(true);
//EED Borrame       mVirtualExecuter->SetNoErrorMode(true);
//EED Borrame       mThrow = false;
//EED Borrame     }
//EED Borrame   else if (words[1]=="unfreeze") 
//EED Borrame     {
//EED Borrame       mVirtualExecuter->SetNoExecMode(false);
//EED Borrame       mVirtualExecuter->SetNoErrorMode(false);
//EED Borrame     }
//EED Borrame   else
//EED Borrame     {
//EED Borrame       mVirtualExecuter->Execute(words[1]);
//EED Borrame     }
                          
        break;

      case cInput :
        Utilities::SplitAroundFirstDot(words[2],left,right);
                          commandInput(words[1],left,right,words[3]);
//EED Borrame        mVirtualExecuter->DefineInput(words[1],left,right,words[3]);
        break;

      case cOutput :
        Utilities::SplitAroundFirstDot(words[2],left,right);
                commandOutput(words[1],left,right,words[3]);
//EED Borrame         mVirtualExecuter->DefineOutput(words[1],left,right,words[3]);
        break;

      case cSet :
        Utilities::SplitAroundFirstDot(words[1],left,right);
                commandSet(left,right,words[2]);
//EED Borrame        mVirtualExecuter->Set(left,right,words[2]);
        break;

      case cAuthor :
                commandAuthor(words[1]);
//EED Borrame        mVirtualExecuter->Author(words[1]);
        break;

      case cNewGUI :
                commandNewGUI(words[1],words[2]);
        break;

      case cCategory :
                commandCategory(words[1]);
//EED Borrame   mVirtualExecuter->Category(words[1]);
        break;

      case cIndex :
        if (words.size()==1)
                        commandIndex("tmp_index.html");
        else if (words.size()==2)
                        commandIndex(words[1]);
        else if (words.size()==3)
                        commandIndex(words[1],words[2]);
        break;

      case cDescription :
                commandDescription(words[1]);
//EED Borrame        mVirtualExecuter->Description(words[1]);
        break;

      case cHelp :
        commandHelp(words);
        break;


      case cGraph :
        commandGraph(words);
        break;

      case cConfig :
        commandConfig();
        break;

      case cReset :  
        commandReset();
        break;
        
      case cClear :  
                commandClear();
//EED Borrame           mVirtualExecuter->Clear();
        break;

      case cInclude :
                          commandInclude( words[1] , (words.size()==3) );
//EED Borrame           // if 'source' was given (words.size()==3) then tell to set the 
//EED Borrame           // source file name of the current complex box with the full file name included
//EED Borrame           if (mCommandLine)
//EED Borrame        {
//EED Borrame           InterpretFile(words[1],(words.size()==3)); 
//EED Borrame        } else{
//EED Borrame            SwitchToFile(words[1],(words.size()==3) );
//EED Borrame        }
                break;

      case cLoad:
                commandLoad( words[1] );
//EED Borrame        GetExecuter()->LoadPackage(words[1]);
        break;

      case cUnload:
                commandUnload( words[1] );
//EED Borrame        GetExecuter()->UnLoadPackage(words[1]);
        break;

      case cDebug :
                          if (words.size()==2) commandDebug(words[1]);
                                else commandDebug("");
        break;
                          
        /* obsolete
      case cWorkspace :
        if (words.size() == 2) 
        {
           if (words[1]=="freeze")        mVirtualExecuter->SetNoExecMode(true);
           else if (words[1]=="unfreeze") mVirtualExecuter->SetNoExecMode(false);
        }
        else
        {
           mVirtualExecuter->SetWorkspaceName(words[2]);
        }
        break;
        */
      default:
        bbtkInternalError("should not reach here !!!");
   }

    bbtkDebugMessage("interpreter",6,"<== InterpreterVirtual::DoInterpretLine(\""
                     <<line<<"\")"<<std::endl);
          
  }
  //=======================================================================  





  //=======================================================================
  void InterpreterVirtual::SplitLine ( const std::string& str, std::vector<std::string>& tokens)
{
    bbtkDebugMessage("interpreter",9,"==> InterpreterVirtual::SplitLine(\""<<str<<"\")"<<std::endl);

    std::string delimiters = "\"";
    std::vector<std::string> quote;
    Utilities::SplitString(str,delimiters,quote);

    delimiters = " \t";
    std::vector<std::string>::iterator i;
    for (i=quote.begin(); i!=quote.end(); ) 
    {
       Utilities::SplitString(*i,delimiters,tokens);
       ++i;
       if (i!=quote.end()) 
       {
        //    bbtkDebugMessage("interpreter",0,"\""<<*i<<"\""<<std::endl);
          tokens.push_back(*i);
          ++i;
       }
    }

    for (i=tokens.begin(); i!=tokens.end(); ++i) 
    {
      bbtkDebugMessage("interpreter",9,"--["<<*i<<"]"<<std::endl);
    }
    bbtkDebugMessage("interpreter",9,"<== InterpreterVirtual::SplitLine(\""<<str<<"\")"<<std::endl);

 }
  //=======================================================================


  //=======================================================================
  void InterpreterVirtual::commandReset()
  {
  }
  //=======================================================================

  //=======================================================================
  /*
  void InterpreterVirtual::Print( const std::string& str)
  {
    if (mVirtualExecuter->GetNoExecMode()) return;

    bbtkDebugMessageInc("interpreter",9,"InterpreterVirtual::Print(\""<<str<<"\")"<<std::endl);

 // TO DO :
 // InterpretLine ("load std")
 // InterpretLine("new ConcatStrings _C_ ") -> trouver un nom unique : # commande 
 // InterpretLine("new Print _P_") 
 // InterpretLine("connect _C_.Out _P_.In")
 // int num = 1
 

    std::vector<std::string> chains;
    std::string delimiters("$");

    // Skip delimiters at beginning.
    std::string::size_type lastPos = str.find_first_not_of(delimiters, 0);
    bool is_text = true;
    if (lastPos>0) is_text = false;

    // Find first delimiter.
    std::string::size_type pos     = str.find_first_of(delimiters, lastPos);

    while (std::string::npos != pos || std::string::npos != lastPos)
    {
       if (is_text) 
       {
          // Found a text token, add it to the vector.
          chains.push_back(str.substr(lastPos, pos - lastPos));
 // std::string token = str.substr(lastPos, pos - lastPos)
 // InterpretLine("set _C_.In%num% %token%")
 
       }
       else 
       {

       // is an output (between $$) : decode 
         std::string tok,box,output;
         tok = str.substr(lastPos, pos - lastPos);
         Utilities::SplitAroundFirstDot(tok,box,output);
         chains.push_back( mVirtualExecuter->Get(box,output) );

// InterpretLine("connect %tok% _C_.In%num%") 

       }
        // Skip delimiters.  Note the "not_of"
       lastPos = str.find_first_not_of(delimiters, pos);
        // Find next delimiter
       pos = str.find_first_of(delimiters, lastPos);
    //
       is_text = !is_text;
// num ++;
     }
// InterpretLine("exec _P_")
// if (IS_IN_WORKSPACE) InterpretLine("delete _C_; delete _P_");

     std::vector<std::string>::iterator i;
     for (i= chains.begin(); i!=chains.end(); ++i) 
     {

       Utilities::SubsBackslashN(*i);
       std::cout << *i;
     }
     std::cout << std::endl;
     bbtkDebugDecTab("interpreter",9);
 }
*/

  //=======================================================================
  // =========================================================================
  void InterpreterVirtual::SwitchToFile( const std::string& name , bool source )
  {
  // Note : in the following :
  // name : the user supplied name 
  //      - abreviated name    e.g.       scr   scr.bbs
  //      - relative full name e.g.       ./scr.bbs   ../../scr.bbs 
  //      - absolute full name e.g.       /home/usrname/proj/dir/scr.bbs
  //          same for Windows, with      c:, d: ...
  //
  // use ./directory/subdir/scrname.bbs
  //

    bbtkDebugMessage("interpreter",4,"==> InterpreterVirtual::SwitchToFile( \""
                     <<name<<"\")"<<std::endl);

    std::vector<std::string> script_paths;
    std::string fullPathScriptName;  // full path script name
    std::string pkgname;             // e.g. <scriptname>.bbs
    std::vector<std::string> Filenames;

    // The following is *NOT* a debug time message :
    // It's a user intended message.
    // Please don't remove it.
    bbtkMessage("interpreter",1,
        "look for : [" << name
        << "]" << std::endl);


    std::string upath;
    pkgname = Utilities::ExtractScriptName(name,upath);

    bbtkMessage("interpreter",3,
                "package name:[" << pkgname
                 << "] path:[" << upath << "]" << std::endl);
    bool fullnameGiven = false; 
    bool foundFile     = false;

    // ==== "*" provided : load all scripts in given path 
    // relative (e.g. std/boxes/*) or absolute 
    if (pkgname == "*") 
      {

        std::stringstream* stream = new std::stringstream;
        //if (upath.size()!=0) // avoid troubles for "*"
                  
        // ==== no path provided : look in root bbs path
        if (upath.size()==0)
          {
            //      bbtkMessage("interpreter",1,
            // LG : add all bbs path
            //  script_paths.push_back(  ConfigurationFile::GetInstance().Get_root_bbs_path() );
            std::vector<std::string>::const_iterator i;
            for (i=ConfigurationFile::GetInstance().Get_bbs_paths().begin();
                 i!=ConfigurationFile::GetInstance().Get_bbs_paths().end();
                 i++)
              {
                script_paths.push_back(*i);
              }
          }
        // ==== absolute path provided 
        else if (upath[0]=='/' || upath[1] == ':' ) 
          {
            if ( Utilities::IsDirectory( upath ) )
              {
                script_paths.push_back(upath);
              }
            else 
              {
                bbtkError("'"<<upath<<"' : directory does not exist"); 
              }
          }
        // ==== relative path provided : search all bbs path appended with 
        // the relative path provided
        else
          {    
            std::vector<std::string>::const_iterator i;
            for (i=ConfigurationFile::GetInstance().Get_bbs_paths().begin();
                 i!=ConfigurationFile::GetInstance().Get_bbs_paths().end();
                 i++)
              {
                std::string full_path(*i);
printf("EED InterpreterVirtual::SwitchToFile 1. >>%s\n", full_path.c_str() );
                // we *really* want '.' to be the current working directory
                if (full_path == ".") 
                  {
                    char buf[2048]; // for getcwd
                    char * currentDir = getcwd(buf, 2048);
                    std::string cwd(currentDir);
                    full_path = currentDir;
                  } // if full_path
                
                full_path += ConfigurationFile::GetInstance().Get_file_separator();
                full_path += upath;
                
                if ( Utilities::IsDirectory( full_path ) )
                  {
                    script_paths.push_back(full_path);
                  }
              } 
            if (script_paths.empty())
              {
                bbtkError("no '"<<upath<<"' subdir found in search paths" 
                          << std::endl);
              }
          }
        
        // === search paths list complete : now explore it
        int nbBssFiles = 0;     
        // ==== relative name, iterate + load all .bbs/.bbp files
        std::vector<std::string>::iterator i;
        for (i=script_paths.begin();i!=script_paths.end();i++)
          {

printf("EED InterpreterVirtual::SwitchToFile jaja >>  %s\n", (*i).c_str() );
                  
            bbtkMessage("interpreter",1,
                        "--> Looking in '" << *i << "'" << std::endl);
            
            Filenames.clear();
            //int nbFiles = 
            Utilities::Explore(*i, false, Filenames);

            for (std::vector<std::string>::iterator j = Filenames.begin(); 
                 j!= Filenames.end(); ++j)
              {
                          
printf("EED InterpreterVirtual::SwitchToFile kkkkk     >>  %s\n", (*j).c_str() );
                          
                int lgr = (*j).size();
                if (lgr < 5) continue;  
                // ignore non .bbp file
                if ( (*j).substr(lgr-4, 4) != ".bbp") continue; 
                
                (*stream) << "include \"" << *j << "\"\n";
                bbtkMessage("interpreter",2,"  --> Found '" << *j << "'" << std::endl);
                
                nbBssFiles++;
              } // for (std::vector...
          } // for (i=script_...

        // === Result ...
        if (nbBssFiles==0)
          {
            bbtkMessage("interpreter",1,
                        "  --> No .bbp found"<< std::endl);
          } 
        else 
          {
            bbtkMessage("interpreter",1,
                        "  --> "<<nbBssFiles<<" .bbp found"<< std::endl);
            SwitchToStream(stream);
          }
        return;
      }  
    //=============== end pkgname=="*" ===========
    
    
    // if name starts with a / or a . or contains : user is assumed to have passed a relative/absolute name
    // (not only a plain script name)
    // we trust him, and try to expland the directory name
    // WARNING : starting from current local directory :  ./whatYouWant  (./ mandatory!)

    if (name[0]=='/' || name[1] == ':' || name[0]=='.')  // absolute path (linux/windows) or relative path
    { 

      // ===========================================================check user supplied location
      fullnameGiven = true;

      fullPathScriptName =  Utilities::ExpandLibName(name, false);

      // allow user to always forget ".bbs"
      int l = fullPathScriptName.size();

      if (l!=0) 
          {
         if ((fullPathScriptName.substr(l-4, 4) != ".bbs")&&
                         (fullPathScriptName.substr(l-4, 4) != ".bbp"))
         {
                        std::string tfullPathScriptName = fullPathScriptName + ".bbs";
                        if ( Utilities::FileExists(tfullPathScriptName) )
                        {
                                fullPathScriptName = tfullPathScriptName;
                                foundFile = true;
                        }
                        else 
                        {
                                tfullPathScriptName = fullPathScriptName + ".bbp";
                                if ( Utilities::FileExists(tfullPathScriptName) )
                                {
                                        fullPathScriptName = tfullPathScriptName;
                                        foundFile = true;
                                }
                        }
                 }
                 else 
                 {
                        if ( Utilities::FileExists(fullPathScriptName) )
                        {
                                foundFile = true;
                        }
                 }
          } // endif l != 0
  }
  else
  // =============================== iterate on the paths
  {
      script_paths = ConfigurationFile::GetInstance().Get_bbs_paths();
      std::string path;
      std::vector<std::string>::iterator i;
      for (i=script_paths.begin();i!=script_paths.end();++i)
          {
                path = *i;
                // we *really* want '.' to be the current working directory
                if (path == ".") 
                {
                        char buf[2048]; // for getcwd
                        char * currentDir = getcwd(buf, 2048);
                        std::string cwd(currentDir);
                        path = currentDir;
                }
          
                std::string tfullPathScriptName = Utilities::MakePkgnameFromPath(path, name, false);
                  
//Addition JCP tfullPathScriptName.size()>=4 
                if(tfullPathScriptName.size()>=4){
                        if (tfullPathScriptName.substr(tfullPathScriptName.size()-4, 3)==".bb")
                        {
                          fullPathScriptName = tfullPathScriptName;
                                if ( ! Utilities::FileExists(fullPathScriptName) )
                                {
                                        // The following is *NOT* a debug time message :
                                        // It's a user intended message.
                                        // Please don't remove it.
                                        bbtkMessage("interpreter",2,
                                  "   [" <<fullPathScriptName <<"] : does not exist" 
                                  <<std::endl);
                                        continue;  // try next path
                                }
                                bbtkMessage("interpreter",2,
                                          "   [" <<fullPathScriptName 
                                          <<"] : found" <<std::endl);
                                foundFile = true;
                                break; // a script was found; we stop iterating
                        }
                        else 
                        {
                                fullPathScriptName = tfullPathScriptName + ".bbs";
                                // Check if library exists
                                if ( ! Utilities::FileExists(fullPathScriptName) )
                                {
                                        fullPathScriptName = tfullPathScriptName + ".bbp";
                                        if ( ! Utilities::FileExists(fullPathScriptName) )
                                        {
                                                // The following is *NOT* a debug time message :
                                                // It's a user intended message.
                                                // Please don't remove it.
                                                bbtkMessage("interpreter",2,
                                                "   [" <<tfullPathScriptName <<".bbs/.bbp] : do not exist" 
                                                <<std::endl);
                                                continue;  // try next path
                                        }
                                }
                                bbtkMessage("interpreter",2,
                                  "   [" <<fullPathScriptName 
                                  <<"] : found" <<std::endl);
                                foundFile = true;
                                break; // a script was found; we stop iterating
                        }
                }               
        } //------------------ // end for ( package_paths.begin();i!=package_paths.end() )
  }

    if (!foundFile)
      {
        if (fullnameGiven)
          if(fullPathScriptName == "")
            bbtkError("Path ["<<upath<<"] doesn't exist");
          else
            bbtkError("Script ["<<fullPathScriptName<<"] not found");
        else
          bbtkError("No ["<<pkgname<<".bbs/.bbp] script found");
        return;
      } else {
//EED printf("EED D. SwitchToFile %s\n", fullPathScriptName.c_str() );    
                LoadScript(fullPathScriptName,name);
//EED Borrame     if (source) GetExecuter()->SetCurrentFileName(fullPathScriptName);
                if (source) SetCurrentFileName(fullPathScriptName);
        }    
                  
    return;
  }
  //=======================================================================

        //=======================================================================
        void InterpreterVirtual::SetCurrentFileName(const std::string &fullPathScriptName)  // virtual 
        {
        }       
        //=======================================================================
        
  //=======================================================================
void InterpreterVirtual::SwitchToStream( std::stringstream* stream )
{
  bbtkDebugMessage("interpreter",4,"==> InterpreterVirtual::SwitchToStream()"
                   <<std::endl);
   mFile.push_back(stream);
    std::ostringstream buffer_name;
    bufferNb++;
    buffer_name << "buffer_" ;

    if (mFileName.size()>0 )
    {
       buffer_name << mFileName.back() << "_" << mLine.back();
    }
    mFileName.push_back(buffer_name.str());
    mIncludeFileName.push_back(buffer_name.str());
    mLine.push_back(0);
}
  //=======================================================================

  //=======================================================================

  void InterpreterVirtual::LoadScript( std::string fullPathScriptName,
                                std::string includeScriptName)
  {
    bbtkDebugMessage("interpreter",4,"==> InterpreterVirtual::LoadScript("
                     <<fullPathScriptName<<")"
                     <<std::endl);

    Utilities::replace( fullPathScriptName , 
                         INVALID_FILE_SEPARATOR , VALID_FILE_SEPARATOR);
   
     if (find(mFileNameHistory.begin(),
              mFileNameHistory.end(),
              fullPathScriptName)!=mFileNameHistory.end())
     {
        return;
     }

    std::ifstream* s;
    s = new std::ifstream;
    s->open(fullPathScriptName.c_str());
    if (!s->good())
    {
        bbtkError("Could not open file ["<<fullPathScriptName<<"]");
        return;
    }

    bbtkMessage("interpreter",1,"   -->[" << fullPathScriptName 
                << "] found" << std::endl);

    mFile.push_back(s);
    mFileName.push_back(fullPathScriptName);
    mFileNameHistory.push_back(fullPathScriptName);
    mIncludeFileName.push_back(includeScriptName);
    mLine.push_back(0);

    return;
  }
  //=======================================================================

  //=======================================================================
  void InterpreterVirtual::CloseCurrentFile()
  {
    bbtkDebugMessage("interpreter",9,"==> InterpreterVirtual::CloseCurrentFile()"
                      <<std::endl);

    if (mFile.size()==0)
    {
      bbtkDebugMessage("interpreter",9," -> no file left open"<<std::endl);
      return;
    }

    bbtkDebugMessage("interpreter",9," Closing file '"<<mFileName.back()<<"'"<<std::endl);

    std::ifstream* file = dynamic_cast<std::ifstream*>(mFile.back());
    if (file!=0) file->close();

    delete mFile.back();
    mFile.pop_back();
    mFileName.pop_back();
    mIncludeFileName.pop_back();
    mLine.pop_back();

    bbtkDebugMessage("interpreter",9," Remains "
                     <<mFile.size()
                     <<" open"<<std::endl);
    bbtkDebugMessage("interpreter",9,"<== InterpreterVirtual::CloseCurrentFile()"
                     <<std::endl);
  }
  //=======================================================================

 //=======================================================================
  void InterpreterVirtual::CloseAllFiles()
  {
    bbtkDebugMessage("interpreter",9,"==> InterpreterVirtual::CloseAllFiles()"
                      <<std::endl);

    while (mFile.size() != 0) 
    {
       CloseCurrentFile();
    }
    bbtkDebugMessage("interpreter",9,"<== InterpreterVirtual::CloseAllFiles()"
                      <<std::endl);
  }
  //=======================================================================



  //=======================================================================
  void InterpreterVirtual::InterpretCommand( const std::vector<std::string>& words,
                                      CommandInfoType& info )
  {
          
    bbtkDebugMessage("interpreter",9,"==> InterpreterVirtual::InterpretCommand(...)"<<std::endl);

    // searches the command keyword
    CommandDictType::iterator c;
    c = mCommandDict.find(words[0]);
    if ( c == mCommandDict.end() ) {
      bbtkError(words[0]<<" : unknown command");
    }

    // tests the number of args 
    if ( ( ((int)words.size())-1 < c->second.argmin ) ||
         ( ((int)words.size())-1 > c->second.argmax ) )
    {
                
//EED       HelpCommand(words[0]);
                commandHelp(words[0]);
       bbtkError(words[0]<<" : wrong number of arguments");
    }
//std::cout<<"InterpreterVirtual::InterpretCommand( const std::vector<std::string>& words,"<<std::endl;
    info = c->second;
    bbtkDebugMessage("interpreter",9,"<== InterpreterVirtual::InterpretCommand(...)"<<std::endl);

  }
  //=======================================================================


  //=======================================================================
  void InterpreterVirtual::commandHelp(const std::vector<std::string>& words) 
  { 
  }
  //=======================================================================
  void InterpreterVirtual::commandHelp(const std::string &words) 
  {  
  }
        //=======================================================================
        
   //===================================================================    
  void InterpreterVirtual::commandConfig() const
  {
  }  
   //===================================================================    



  //=======================================================================
  void InterpreterVirtual::FindCommandsWithPrefix( char* buf,
                                            int n,
                                            std::vector<std::string>& commands )
  {
    CommandDictType::const_iterator i;
    for (i=mCommandDict.begin(); i!=mCommandDict.end(); ++i)
    {
      if ((i->first).find(buf,0,n) == 0) 
        commands.push_back(i->first);
    }
  }
  //=======================================================================



  //=======================================================================
#ifdef BBTK_USE_TERMIOS_BASED_PROMPT
  
  inline void PrintChar(char c) { write(STDOUT_FILENO,&c,1); }
  inline void BackSpace() { write(STDOUT_FILENO,"\b \b",3); }
  
  // LG : KEYBOARD CODES AS SCANNED ON MY TTY : UNIVERSAL ?
  // IF NOT THE USER SHOULD BE ABLE TO CONFIGURE IT
  // E.G. STORE THIS IN bbtk_config.xml
#define BBTK_UP_ARROW_KBCODE    0x00415B1B
#define BBTK_DOWN_ARROW_KBCODE  0x00425B1B
#define BBTK_RIGHT_ARROW_KBCODE 0x00435B1B
#define BBTK_LEFT_ARROW_KBCODE  0x00445B1B
#define BBTK_BACKSPACE_KBCODE   0x00000008
#define BBTK_DEL_KBCODE         0x0000007F
#define BBTK_SPACE_KBCODE       0x00000020 

  //=======================================================================
  void InterpreterVirtual::GetLineFromPrompt(std::string& s)
  {
    int c;
    unsigned int ind=0;

    unsigned int MAX_LINE_SIZE = 160;
    unsigned int MAX_HISTORY_SIZE = 100;

    char* newline = new char[MAX_LINE_SIZE];
    memset(newline,0,MAX_LINE_SIZE);
    char* histline = new char[MAX_LINE_SIZE];
    memset(histline,0,MAX_LINE_SIZE);

    char* line = newline;
    unsigned int hist = mHistory.size();

    write(1,"> ",2);
    while(1)
    {
       c=0;
       read ( STDIN_FILENO, &c, 4) ;

       bbtkDebugMessage("debug",9,"[0x"<<std::hex<<c<<"]\n");

       // Printable character
       if ( (ind<MAX_LINE_SIZE-1) &&
            ( c >= BBTK_SPACE_KBCODE ) && 
            ( c <  BBTK_DEL_KBCODE )) 
       {
          PrintChar(c);
          line[ind++]=c;
       }
      // CR
       else if (c=='\n')
       {
       // delete the unused line
          if (line==newline)
              delete histline;
          else
              delete newline;
   
    // empty lines are not stored in from history
          if (strlen(line)) 
          {
             // if history too long : delete oldest command
             if (mHistory.size()>MAX_HISTORY_SIZE) 
             {
                delete mHistory.front();
                mHistory.pop_front();
             }
             mHistory.push_back(line);
          }
          break;
        }
       // Backspace
        else if ( (ind>0) && 
                  ((c == BBTK_BACKSPACE_KBCODE) ||
                   (c == BBTK_DEL_KBCODE)) )
          {
            line[ind--]=' ';
            BackSpace();
          }
        // Tab 
        else if (c=='\t')
          {
            // TODO : Command completion  
            std::vector<std::string> commands;
            FindCommandsWithPrefix( line,ind,commands);
            if (commands.size()==1) 
              {
                std::string com = *commands.begin();
                for (; ind<com.size(); ++ind) 
                  {
                    PrintChar(com[ind]); 
                    line[ind]=com[ind];
                  }
                PrintChar(' '); 
                line[ind++]=' ';
              }
            else if (commands.size()>1) 
              {
                std::vector<std::string>::iterator i;
                write(1,"\n",1);
                for (i=commands.begin();i!=commands.end();++i) 
                  {
                    write(STDOUT_FILENO,(*i).c_str(),strlen((*i).c_str()));
                    PrintChar(' ');
                  }
                write(STDOUT_FILENO,"\n> ",3);
                //for (int j=0;j<ind;++j) 
                  //{
                    write(STDOUT_FILENO,line,ind); 
                    //  }
              }
          }
        // Arrow up : back in history
        else if (c==BBTK_UP_ARROW_KBCODE)
          {
            if (hist) 
              {
                // erase current line
                while (ind--) BackSpace();
                // 
                hist--;
                // 
                strcpy(histline,mHistory[hist]);
                line = histline;
                ind = strlen(line);
                
                write(STDOUT_FILENO,line,ind);
              }
          }
        // Arrow down : down in history
        else if (c==BBTK_DOWN_ARROW_KBCODE)
          {
            if (hist<mHistory.size()-1) 
              {
                // erase current line
                while (ind--) BackSpace();
                // 
                hist++;
                // 
                strcpy(histline,mHistory[hist]);
                line = histline;
                ind = strlen(line);
                
                write(STDOUT_FILENO,line,ind);
              }
            // end of history : switch back to newline
            else if (hist==mHistory.size()-1)
              {
                // erase current line
                while (ind--) BackSpace();
                // 
                hist++;
                // 
                line = newline;
                ind = strlen(line);
                
                write(STDOUT_FILENO,line,ind);
              }
          }
        // Arrow right
        else if (line[ind]!=0 && c==BBTK_RIGHT_ARROW_KBCODE)
          {
            PrintChar(line[ind]);
            ind++;
          }

        // Arrow left
        else if (ind>0 && c==BBTK_LEFT_ARROW_KBCODE)
          {
            PrintChar('\b');
            ind--;
    
          }

      }
    write(STDOUT_FILENO,"\n\r",2);
    
    
    s = line;
    
  }
#else

  //=======================================================================
  void InterpreterVirtual::GetLineFromPrompt(std::string& s)
  {  
    s.clear();

    putchar('>');
    putchar(' ');

    do 
    {
      char c = getchar();
      if (c=='\n') 
      {
        putchar('\n');
        break;
      }
      if (c=='\t') 
      {
        // putchar('T');
        continue;
      }
      // putchar(c);
      s += c;
    } 
    while (true);  
    
  }
  //=======================================================================  

#endif



  //=======================================================================
  void InterpreterVirtual::CommandLineInterpreter()
  {
    bbtkDebugMessageInc("interpreter",9,
                        "InterpreterVirtual::CommandLineInterpreter()"<<std::endl);

#ifdef BBTK_USE_TERMIOS_BASED_PROMPT  
    // Initialise the tty in non canonical mode with no echo
    // oter remembers the previous settings to restore them after 
    struct termios ter,oter;
    tcgetattr(0,&ter);
    oter=ter;
    ter.c_lflag &= ~ECHO;
    ter.c_lflag &= ~ICANON;
    ter.c_cc[VMIN]=1;
    ter.c_cc[VTIME]=0;
    tcsetattr(0,TCSANOW,&ter);
#endif

    mCommandLine = true;
    bool again = true;
    // bool insideComment = false; // for multiline comment  
    mInsideComment = false;
    do 
    {
      try
      {
        std::string line;
        GetLineFromPrompt(line);
        DoInterpretLine(line); //, insideComment);
      }
      /*
      catch (QuitException e)
      {
        bbtkMessage("interpreter",1,"Interpreter : Quit"<<std::endl);
        again = false;
      }
      */
      catch (bbtk::Exception e) 
      {
        e.Print();
      }
        catch (std::exception& e) 
      {
        std::cerr << "* ERROR :: "<<e.what()<<" (not in bbtk)"<<std::endl;
      }
      catch (...)
      {
        std::cerr << "* UNDEFINED ERROR (not a bbtk nor a std exception)"<<std::endl;
      }
    }
    while (again);

#ifdef BBTK_USE_TERMIOS_BASED_PROMPT
    tcsetattr(0,TCSANOW,&oter);
#endif

    std::cout << "Good bye !" << std::endl;

    bbtkDebugDecTab("interpreter",9);
  }

//=======================================================================
void InterpreterVirtual::commandGraph(const std::vector<std::string>& words)
{
}
//=======================================================================


//=======================================================================
void  InterpreterVirtual::commandIndex(const std::string& filename, const std::string& type)
{
}
//=======================================================================


//=======================================================================
void  InterpreterVirtual::commandNewGUI(const std::string& boxname,const std::string& instanceName)
{
}
//=======================================================================



 //==========================================================================
  void InterpreterVirtual::commandDebug(const std::string& name)
  {
  }
 //==========================================================================

  /*
  //==========================================================================
  // Adds a callback when 'break' command issued
  void InterpreterVirtual::AddBreakObserver( BreakCallbackType c )
  {
    mBreakSignal.connect(c);
  }
 //==========================================================================
 */

 //==========================================================================
  std::string InterpreterVirtual::GetObjectName() const
  {
    return std::string("InterpreterVirtual");
  }
  //==========================================================================
  
  //==========================================================================
  std::string  InterpreterVirtual::GetObjectInfo() const 
  {
    std::stringstream i;
    return i.str();
  }
  //==========================================================================

  //==========================================================================
size_t  InterpreterVirtual::GetObjectSize() const 
{
  size_t s = Superclass::GetObjectSize();
  s += InterpreterVirtual::GetObjectInternalSize();
  return s;
  }
  //==========================================================================
  //==========================================================================
size_t  InterpreterVirtual::GetObjectInternalSize() const 
{
  size_t s = sizeof(InterpreterVirtual);
  return s;
  }
  //==========================================================================
  //==========================================================================
  size_t  InterpreterVirtual::GetObjectRecursiveSize() const 
  {
    size_t s = Superclass::GetObjectRecursiveSize();
    s += InterpreterVirtual::GetObjectInternalSize();
    return s;
  }
  //==========================================================================
}//namespace