OptFrame/Parallel/MapReduce++/util/Scanner++/Scanner.h

// Scanner Object - Scanner++

// Copyright (C) 2009
// Igor Machado - Mario Henrique Perche - Pablo Munhoz - Sabir Ribas
//
// This file is part of the Scanner++ Library v0.91.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU Lesser General Public License v3 as published by the
// Free Software Foundation.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License v3 for more details.

// You should have received a copy of the GNU Lesser General Public License v3
// along with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.

#ifndef SCANNERPP_H_
#define SCANNERPP_H_


#include<iostream>
#include<istream>
#include<string>
#include<sstream>

#include<vector>

#include <stdlib.h>

using namespace std;

#include "File.h"

class Scanner
{
private:
        istream *input;
        
        File* inputfile;
        
        bool hasNextChar();
        char nextChar();
        
        string sep;
         
public:
        Scanner(File* inputfile);
        Scanner(istream* input);
        Scanner(string input);
        
        virtual ~Scanner();
        
        // useDefaultSeparators: chama o useSeparators para os caracteres:
        // espaco, quebra de linha (\n), tabulacao (\t) e retorno de carro (\r)
        
        void useDefaultSeparators();
        
        // useSeparators: equivalente ao useDelimiter de Java
        // a diferenca e que Java trata a string como uma
        // expressao regular, e neste caso o useSeparators
        // apenas considera cada caractere da string separadamente
        // como um separador.
        
        void useSeparators(string s);
        bool inSeparators(char c);
        
        std::string next();
        std::string nextLine();
        int nextInt();
        long nextLong();
        float nextFloat();      
        double nextDouble();
        
        bool hasNext();
        bool hasNextLine(); // Unimplemented! Calling hasNext() instead
        bool hasNextInt(){return true;}
        bool hasNextLong(){return true;}
        bool hasNextFloat(){return true;}
        bool hasNextDouble(){return true;}
        
        void close();
};

#endif /*SCANNERPP_H_*/