chem1/include/CommandLineParser.hh

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//
// This example is provided by the Geant4-DNA collaboration
// Any report or published results obtained using the Geant4-DNA software
// shall cite the following Geant4-DNA collaboration publication:
// Med. Phys. 37 (2010) 4692-4708
// J. Comput. Phys. 274 (2014) 841-882
// The Geant4-DNA web site is available at http://geant4-dna.org
//
// Author: Mathieu Karamitros
//
// $Id$
//

#ifndef COMMANDLINEPARSER_HH
#define COMMANDLINEPARSER_HH

#include "globals.hh"
#include <map>

namespace G4DNAPARSER
{
class Command
{
public:
  enum Type
  {
    WithOption,
    WithoutOption,
    OptionNotCompulsory
  };

  virtual const G4String& GetOption() { return fNoOption;}
  Command::Type GetType() {return fType;}
  G4bool IsActive() {return fActive;}
  const G4String& GetDescription() {return fDescription;}
  virtual const G4String& GetOptionName() { return fNoOption;}
  virtual const G4String& GetDefaultOption() { return fNoOption;}

  virtual void SetOption(const G4String&){;}
  virtual void SetOptionName(const G4String&){;}
  virtual void SetDefaultOption(const G4String&){;}

protected:
  friend class CommandLineParser;
  Type fType;
  G4bool fActive;
  G4String fDescription;
  static G4String fNoOption;

  Command(Type, 
          const G4String &description = "");
  virtual ~Command(){;}
};

class CommandWithOption : public Command
{
public:
  virtual const G4String& GetOption() {return fOption;}
  virtual const G4String& GetOptionName() {return fOptionName;}
  virtual const G4String& GetDefaultOption() { return fDefaultOption;}

  virtual void SetOption(const G4String& in_op){ fOption = in_op;}
  virtual void SetOptionName(const G4String& in_op){ fOptionName = in_op;}
  virtual void SetDefaultOption(const G4String& in_op){ fDefaultOption = in_op;}

private:
  friend class CommandLineParser;
  CommandWithOption(Type,
          const G4String &description = "",
          const G4String &defaultOption = "",
          const G4String &optionName ="optionName");

  virtual ~CommandWithOption(){;}

  G4String fOption;
  G4String fDefaultOption;
  G4String fOptionName;
};

class CommandLineParser
{
    static CommandLineParser* fpInstance;
    std::map<G4String, Command*> fCommandMap;
    G4bool fOptionsWereSetup;
    G4int fMaxMarkerLength;
    G4int fMaxOptionNameLength;
    G4int fVerbose;

public:
    static CommandLineParser* GetParser();
    CommandLineParser();
    ~CommandLineParser();
    static void DeleteInstance();
    int Parse(int& argc, char **argv);
    void PrintHelp();
    bool CheckIfNotHandledOptionsExists(int& argc, char** argv);
    void CorrectRemainingOptions(int& argc, char **argv);
    void AddCommand(const G4String & marker,Command::Type,
                    const G4String& description = "",
                    const G4String& defaultOption = "",
                    const G4String& optionName = "");
    Command* FindCommand(const G4String &marker);
    Command* GetCommandIfActive(const G4String &marker);
    G4bool WereOptionsSetup(){return fOptionsWereSetup;}
};
}
#endif // PARSER_HH