iterator_check.cpp 1.7 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2017 Joel de Guzman
  3. Copyright (c) 2017 think-cell GmbH
  4. Distributed under the Boost Software License, Version 1.0. (See accompanying
  5. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  6. =============================================================================*/
  7. #include <boost/detail/lightweight_test.hpp>
  8. #include <boost/spirit/home/qi.hpp>
  9. #include <boost/range/adaptor/transformed.hpp>
  10. #include <iostream>
  11. #include <string>
  12. #include <functional>
  13. namespace {
  14. char transform_func(char c) {
  15. return c < 'a' || 'z' < c ? c : static_cast<char>(c - 'a' + 'A');
  16. }
  17. }
  18. int main()
  19. {
  20. using boost::adaptors::transform;
  21. using boost::spirit::qi::raw;
  22. using boost::spirit::qi::eps;
  23. using boost::spirit::qi::eoi;
  24. using boost::spirit::qi::upper;
  25. using boost::spirit::qi::repeat;
  26. using boost::spirit::qi::parse;
  27. std::string input = "abcde";
  28. boost::transformed_range<char(*)(char), std::string> const rng = transform(input, transform_func);
  29. {
  30. std::string str;
  31. BOOST_TEST((parse(boost::begin(rng), boost::end(rng), +upper >> eoi, str)));
  32. BOOST_TEST(("ABCDE"==str));
  33. }
  34. {
  35. boost::iterator_range<boost::range_iterator<boost::transformed_range<char(*)(char), std::string> const>::type> str;
  36. BOOST_TEST((parse(boost::begin(rng), boost::end(rng), raw[+upper >> eoi], str)));
  37. BOOST_TEST((boost::equal(std::string("ABCDE"), str)));
  38. }
  39. {
  40. BOOST_TEST((parse(boost::begin(rng), boost::end(rng), (repeat(6)[upper] | repeat(5)[upper]) >> eoi)));
  41. }
  42. return boost::report_errors();
  43. }