Ticket #12602: rawstrlit_with_escapechars.cpp

// This testcase demonstrates an issue with Wave's processing of raw string literals

#include <iostream>
#include <iomanip>

#include <boost/wave.hpp>
#include <boost/wave/token_ids.hpp>
#include <boost/wave/cpplexer/cpp_lex_token.hpp>
#include <boost/wave/cpplexer/cpp_lex_iterator.hpp>

#include <boost/spirit/include/support_istream_iterator.hpp>
#include <boost/wave/cpplexer/re2clex/cpp_re2c_lexer.hpp>

typedef boost::wave::cpplexer::lex_token<> cpplexer_token_t;
typedef boost::wave::cpplexer::lex_iterator<cpplexer_token_t> cpplexer_iterator_t;

int main() {

    // This input produces an unterminated raw string literal followed by
    // a bunch of independent tokens.  It should produce a single raw string
    // literal of three characters - "A", backslash, and plus
    std::string cppstr("R\"(A\\+)\"");
    // This input simply removes the backslash character.  It correctly produces
    // a single literal of two characters - "A" followed by "+"
    // std::string cppstr("R\"(A+)\"");

    auto cbeg = cppstr.begin();
    auto cend = cppstr.end();
    using namespace boost::wave;

    // works
    cpplexer_iterator_t beg(cbeg, cend,
                            cpplexer_token_t::position_type("fake.cpp"),
                            language_support(support_cpp0x));
    cpplexer_iterator_t end;

    std::cout << "source string: |" << cppstr << "|\n";
    for (auto tok = beg; tok != end; ++tok) {
        std::cout << ID_FROM_TOKEN(*tok) << " |" << tok->get_value() << "| ";
    }

    std::cout << "\n";

}