1 | // test_wave1.cpp : Defines the entry point for the console application.
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2 | //
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3 |
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4 | #include "stdafx.h"
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5 | #include <boost/wave.hpp>
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6 | #include <slex_token.hpp>
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7 | #include <slex_iterator.hpp>
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8 | #include <boost/algorithm/string.hpp>
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9 | #include <fstream>
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10 | #include <string>
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11 |
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12 | #define M else\
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13 | +1
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14 |
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15 | int _tmain(int argc, _TCHAR* argv[])
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16 | {
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17 | using namespace boost::wave::cpplexer;
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18 | using namespace boost::wave;
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19 | using namespace boost::wave::cpplexer::slex;
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20 | std::ifstream ifs("test_wave1.cpp", std::ios::binary | std::ios::in);
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21 | ifs.unsetf(std::ios::skipws);
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22 | std::string s = std::string(std::istream_iterator<char>(ifs),
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23 | std::istream_iterator<char>());
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24 | typedef slex_token<> token_type;
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25 |
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26 | typedef slex_iterator<token_type> iter_type;
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27 | token_type::position_type pos;
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28 | iter_type iter(s.begin(), s.end(), pos, language_support(support_cpp | support_option_preserve_comments | support_option_emit_contnewlines ));
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29 | iter_type end = iter_type();
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30 | while (iter != end)
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31 | {
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32 | const token_type &t = *iter++;
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33 | std::string line = t.get_value().c_str();
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34 | token_id tid;
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35 | if (boost::starts_with(line, "else\\"))
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36 | {
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37 | tid = t;
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38 | std::cout << t.get_value(); // output "else\"
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39 | }
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40 | }
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41 | return 0;
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42 | }
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43 |
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