scanner.h

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/*
 * Copyright (C) 2008 Kamil Dudka <xdudka00@stud.fit.vutbr.cz>
 *
 * This file is part of rob08
 *
 * rob08 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * rob08 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with rob08.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef SCANNER_H
#define SCANNER_H

#include "config.h"

#include "term.h"

#ifndef BUILDING_DOX
#   include <iostream>
#   include <string>
#   include <vector>
#endif

enum EToken {
    ET_NULL = 0,                                        

    ET_GET_WHISKER_STATUS,                              
    ET_GET_COMPASS_HEADING,                             
    ET_GET_COMPASS_HEADING_EX,                          
    ET_GET_TEMP,                                        
    ET_GET_WATER,                                       
    ET_GET_PIR,                                         
    ET_GET_SONAR,                                       
    ET_GET_TILT,                                        
    ET_GET_BATT_VOLTAGE,                                
    ET_GET_SW_VERSION,                                  
    ET_GET_BUTTONS,                                     
    ET_GET_LIGHT_LEVEL,                                 
    ET_GET_SOUND_LEVEL,                                 
    ET_GET_ENCODER_COUNTS,                              
    ET_CMD_PG,                                          
    ET_CMD_PH,                                          
    ET_CMD_PL,                                          
    ET_CMD_PM,                                          
    ET_CMD_PN,                                          
    ET_CMD_PS,                                          
    ET_CMD_PW                                          
};
std::ostream& operator<<(std::ostream &, EToken);

struct Token {
    EToken                          type;               
    int                             lineno;             
    std::string                     text;               
    typedef STD_VECTOR(unsigned)    TArgVector;
    TArgVector                      args;               

    Token():
        type(ET_NULL),
        lineno(0)
    {
    }
    Token(EToken type_, int lineno_, const std::string &text_):
        type(type_),
        lineno(lineno_),
        text(text_)
    {
    }
};
std::ostream& operator<<(std::ostream &, const Token &);

class IScanner: public IErrorSensitive {
    public:
        virtual ~IScanner() { }
        virtual bool readNext(Token &token) = 0;
};

class ScannerFactory {
    public:
        static IScanner* createScanner(ICharReader *reader, std::string fileName);
    private:
        ScannerFactory();
};

#endif /* SCANNER_H */

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