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// $Id: G4tgrUtils.hh,v 1.6 2008/12/18 12:59:06 gunter Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
//
// class G4tgrUtils
//
// Class description:
//
// Utility class for managing of strings.

// History:
// - Created.                                 P.Arce, CIEMAT (November 2007)
// -------------------------------------------------------------------------

#ifndef G4tgrUtils_h
#define G4tgrUtils_h 

#include "globals.hh"

#include <iostream>
#include <vector>

#include "G4ThreeVector.hh"
#include "G4RotationMatrix.hh"
#include "G4tgrEvaluator.hh"

enum WLSIZEtype {WLSIZE_EQ,WLSIZE_NE,WLSIZE_LE,WLSIZE_LT,WLSIZE_GE,WLSIZE_GT};

class G4tgrUtils
{
  public:  // with description

    G4tgrUtils();
   ~G4tgrUtils();
  
    static G4bool IsSeparator(char);
    static G4bool IsNumber( const G4String& str);
    static G4bool IsInteger( const G4double val,
                             const G4double precision = 1.e-6 );
    static G4bool WordIsUnit( const G4String& word );
    static G4bool WordIsFunction( const G4String& word ); 
      // Checks that every character in a G4String is a number
      // (also '.' or exponencial notation: 'E')

    static void Dump3v( const G4ThreeVector& vec, const char* msg);
      // Dumps a three-vector with a message
    static void Dumprm( const G4RotationMatrix& rm, const char* msg);
      // Dumps a rotation matrix with a message
    static void DumpVS( const std::vector<G4String>& wl , const char* msg);
      // Dumps a vector of G4Strings with a message to cout
    static void DumpVS( const std::vector<G4String>& wl , const char* msg,
                              std::ostream& outs) ;
      // Dumps a vector of G4Strings with a message to outs
    static void CheckWLsize( const std::vector<G4String>& wl,
                                   unsigned int nWCheck, WLSIZEtype st,
                             const G4String& methodName );
    static G4bool CheckListSize( unsigned int nWreal,
                                 unsigned int nWcheck, WLSIZEtype st,
                                              G4String& outstr );

    static G4String SubColon( const G4String& str );
      // Return the str without leading ':'

    static G4String GetString( const G4String& str );
      // Return the str without leading and trailing '"' and ' '

    static G4double GetDouble( const G4String& str, G4double unitval = 1. );
      // Convert a G4String to a double, checking that it is really a number
    static G4int GetInt( const G4String& str );
      // Convert a G4String to an integer, checking that it is really an int
    static G4bool GetBool( const G4String& str );
      // Convert a bool to an integer, checking that it is really a bool

    static G4RotationMatrix GetRotationFromDirection( G4ThreeVector dir );

    static G4bool AreWordsEquivalent( const G4String& word1,
                                      const G4String& word2 );
      // Looks if word1 and word2 are equivalent, considering that
      // word1 may have '*', meaning 'any character'

  private:

    static G4tgrEvaluator* theEvaluator;
};

#endif