// test_wave1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <boost/wave.hpp>
#include <slex_token.hpp>
#include <slex_iterator.hpp>
#include <boost/algorithm/string.hpp>
#include <fstream>
#include <string>

#define M else\
    +1

int _tmain(int argc, _TCHAR* argv[])
{
    using namespace boost::wave::cpplexer;
    using namespace boost::wave;
    using namespace boost::wave::cpplexer::slex;
    std::ifstream ifs("test_wave1.cpp", std::ios::binary | std::ios::in);
    ifs.unsetf(std::ios::skipws);
    std::string s = std::string(std::istream_iterator<char>(ifs),
        std::istream_iterator<char>());
    typedef slex_token<> token_type;
    
    typedef slex_iterator<token_type> iter_type;
    token_type::position_type pos;
    iter_type iter(s.begin(), s.end(), pos, language_support(support_cpp | support_option_preserve_comments | support_option_emit_contnewlines ));
    iter_type end = iter_type();
    while (iter != end)
    {
        const token_type &t = *iter++;
        std::string line = t.get_value().c_str();
        token_id tid;
        if (boost::starts_with(line, "else\\"))
        {
            tid = t;
            std::cout << t.get_value(); // output "else\"
        }
    }
    return 0;
}