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/******************************************************************************\
* This file is part of packup. *
* *
* packup 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 *
* (at your option) any later version. *
* *
* packup 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 packup. If not, see <http://www.gnu.org/licenses/>. *
\******************************************************************************/
/*
* File: Lexer.hh
* Author: mikolas
*
* Created on September 2, 2010, 12:34 AM
* Copyright (C) 2011, Mikolas Janota
*/
#ifndef LEXER_HH
#define LEXER_HH
#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
using namespace std;
using std::cerr;
using std::cout;
using std::cin;
using std::endl;
#include "p.tab.hh"
#define BUFSIZE 124
int get_current_line();
int yylex();
class Lexer {
public:
Lexer(istream& input_stream);
int get_current_line();
int yylex_internal();
private:
istream& input;
char buf[BUFSIZE];
int current_line;
int token;// Token that was just read
int done; // Everything has been processed
bool token_read; // There was a token read
bool should_read; // New buffer should be read
bool last_buffer; // Last buffer is being processed
// Ragel variables
int cs, act, have;
char *ts, *te;
char *pe;
char *p;
char *eof;
char* mkstring(const char* ts, unsigned int length);
};
#endif /* LEXER_HH */
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