expect.cpp 4.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147
  1. /*=============================================================================
  2. Copyright (c) 2001-2013 Joel de Guzman
  3. Distributed under the Boost Software License, Version 1.0. (See accompanying
  4. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. =============================================================================*/
  6. #include <boost/detail/lightweight_test.hpp>
  7. #include <boost/spirit/home/x3.hpp>
  8. #include <boost/fusion/include/vector.hpp>
  9. #include <boost/fusion/include/at.hpp>
  10. #include <string>
  11. #include <iostream>
  12. #include "test.hpp"
  13. int
  14. main()
  15. {
  16. using namespace boost::spirit;
  17. using namespace boost::spirit::x3::ascii;
  18. using boost::spirit::x3::lit;
  19. using boost::spirit::x3::expect;
  20. using spirit_test::test;
  21. using spirit_test::test_attr;
  22. using boost::spirit::x3::expectation_failure;
  23. {
  24. try
  25. {
  26. BOOST_TEST((test("aa", char_ >> expect[char_])));
  27. BOOST_TEST((test("aaa", char_ >> expect[char_ >> char_('a')])));
  28. BOOST_TEST((test("xi", char_('x') >> expect[char_('i')])));
  29. BOOST_TEST((!test("xi", char_('y') >> expect[char_('o')]))); // should not throw!
  30. BOOST_TEST((test("xin", char_('x') >> expect[char_('i') >> char_('n')])));
  31. BOOST_TEST((!test("xi", char_('x') >> expect[char_('o')])));
  32. }
  33. catch (expectation_failure<char const*> const& x)
  34. {
  35. std::cout << "expected: " << x.which();
  36. std::cout << " got: \"" << x.where() << '"' << std::endl;
  37. }
  38. }
  39. {
  40. try
  41. {
  42. BOOST_TEST((test("aa", char_ > char_)));
  43. BOOST_TEST((test("aaa", char_ > char_ > char_('a'))));
  44. BOOST_TEST((test("xi", char_('x') > char_('i'))));
  45. BOOST_TEST((!test("xi", char_('y') > char_('o')))); // should not throw!
  46. BOOST_TEST((test("xin", char_('x') > char_('i') > char_('n'))));
  47. BOOST_TEST((!test("xi", char_('x') > char_('o'))));
  48. }
  49. catch (expectation_failure<char const*> const& x)
  50. {
  51. std::cout << "expected: " << x.which();
  52. std::cout << " got: \"" << x.where() << '"' << std::endl;
  53. }
  54. }
  55. {
  56. try
  57. {
  58. BOOST_TEST((!test("ay:a", char_ > char_('x') >> ':' > 'a')));
  59. }
  60. catch (expectation_failure<char const*> const& x)
  61. {
  62. std::cout << "expected: " << x.which();
  63. std::cout << " got: \"" << x.where() << '"' << std::endl;
  64. }
  65. }
  66. #if defined(BOOST_CLANG)
  67. #pragma clang diagnostic push
  68. #pragma clang diagnostic ignored "-Woverloaded-shift-op-parentheses"
  69. #endif
  70. { // Test that attributes with > (sequences) work just like >> (sequences)
  71. using boost::fusion::vector;
  72. using boost::fusion::at_c;
  73. {
  74. vector<char, char, char> attr;
  75. BOOST_TEST((test_attr(" a\n b\n c",
  76. char_ > char_ > char_, attr, space)));
  77. BOOST_TEST((at_c<0>(attr) == 'a'));
  78. BOOST_TEST((at_c<1>(attr) == 'b'));
  79. BOOST_TEST((at_c<2>(attr) == 'c'));
  80. }
  81. {
  82. vector<char, char, char> attr;
  83. BOOST_TEST((test_attr(" a\n b\n c",
  84. char_ > char_ >> char_, attr, space)));
  85. BOOST_TEST((at_c<0>(attr) == 'a'));
  86. BOOST_TEST((at_c<1>(attr) == 'b'));
  87. BOOST_TEST((at_c<2>(attr) == 'c'));
  88. }
  89. {
  90. vector<char, char, char> attr;
  91. BOOST_TEST((test_attr(" a, b, c",
  92. char_ >> ',' > char_ >> ',' > char_, attr, space)));
  93. BOOST_TEST((at_c<0>(attr) == 'a'));
  94. BOOST_TEST((at_c<1>(attr) == 'b'));
  95. BOOST_TEST((at_c<2>(attr) == 'c'));
  96. }
  97. {
  98. std::string attr;
  99. BOOST_TEST((test_attr("'azaaz'",
  100. "'" > *(char_("a") | char_("z")) > "'", attr, space)));
  101. BOOST_TEST(attr == "azaaz");
  102. }
  103. }
  104. #if defined(BOOST_CLANG)
  105. #pragma clang diagnostic pop
  106. #endif
  107. {
  108. try
  109. {
  110. BOOST_TEST((test(" a a", char_ > char_, space)));
  111. BOOST_TEST((test(" x i", char_('x') > char_('i'), space)));
  112. BOOST_TEST((!test(" x i", char_('x') > char_('o'), space)));
  113. }
  114. catch (expectation_failure<char const*> const& x)
  115. {
  116. std::cout << "expected: " << x.which();
  117. std::cout << " got: \"" << x.where() << '"' << std::endl;
  118. }
  119. }
  120. {
  121. try
  122. {
  123. BOOST_TEST((test("bar", expect[lit("foo")])));
  124. }
  125. catch (expectation_failure<char const*> const& x)
  126. {
  127. std::cout << "expected: " << x.which();
  128. std::cout << " got: \"" << x.where() << '"' << std::endl;
  129. }
  130. }
  131. return boost::report_errors();
  132. }