repeat.cpp 5.1 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 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 <string>
  7. #include <vector>
  8. #include <boost/detail/lightweight_test.hpp>
  9. #include <boost/utility/enable_if.hpp>
  10. #include <boost/spirit/home/x3.hpp>
  11. #include <string>
  12. #include <iostream>
  13. #include "test.hpp"
  14. #include "utils.hpp"
  15. int
  16. main()
  17. {
  18. using spirit_test::test_attr;
  19. using spirit_test::test;
  20. using namespace boost::spirit::x3::ascii;
  21. using boost::spirit::x3::repeat;
  22. using boost::spirit::x3::inf;
  23. using boost::spirit::x3::omit;
  24. using boost::spirit::x3::int_;
  25. using boost::spirit::x3::lexeme;
  26. using boost::spirit::x3::char_;
  27. {
  28. BOOST_TEST(test("aaaaaaaa", repeat[char_])); // kleene synonym
  29. BOOST_TEST(test("aaaaaaaa", repeat(8)[char_]));
  30. BOOST_TEST(!test("aa", repeat(3)[char_]));
  31. BOOST_TEST(test("aaa", repeat(3, 5)[char_]));
  32. BOOST_TEST(test("aaaaa", repeat(3, 5)[char_]));
  33. BOOST_TEST(!test("aaaaaa", repeat(3, 5)[char_]));
  34. BOOST_TEST(!test("aa", repeat(3, 5)[char_]));
  35. BOOST_TEST(test("aaa", repeat(3, inf)[char_]));
  36. BOOST_TEST(test("aaaaa", repeat(3, inf)[char_]));
  37. BOOST_TEST(test("aaaaaa", repeat(3, inf)[char_]));
  38. BOOST_TEST(!test("aa", repeat(3, inf)[char_]));
  39. }
  40. {
  41. std::string s;
  42. BOOST_TEST(test_attr("aaaaaaaa", repeat[char_ >> char_], s)); // kleene synonym
  43. BOOST_TEST(s == "aaaaaaaa");
  44. s.clear();
  45. BOOST_TEST(test_attr("aaaaaaaa", repeat(4)[char_ >> char_], s));
  46. BOOST_TEST(s == "aaaaaaaa");
  47. BOOST_TEST(!test("aa", repeat(3)[char_ >> char_]));
  48. BOOST_TEST(!test("a", repeat(1)[char_ >> char_]));
  49. s.clear();
  50. BOOST_TEST(test_attr("aa", repeat(1, 3)[char_ >> char_], s));
  51. BOOST_TEST(s == "aa");
  52. s.clear();
  53. BOOST_TEST(test_attr("aaaaaa", repeat(1, 3)[char_ >> char_], s));
  54. BOOST_TEST(s == "aaaaaa");
  55. BOOST_TEST(!test("aaaaaaa", repeat(1, 3)[char_ >> char_]));
  56. BOOST_TEST(!test("a", repeat(1, 3)[char_ >> char_]));
  57. s.clear();
  58. BOOST_TEST(test_attr("aaaa", repeat(2, inf)[char_ >> char_], s));
  59. BOOST_TEST(s == "aaaa");
  60. s.clear();
  61. BOOST_TEST(test_attr("aaaaaa", repeat(2, inf)[char_ >> char_], s));
  62. BOOST_TEST(s == "aaaaaa");
  63. BOOST_TEST(!test("aa", repeat(2, inf)[char_ >> char_]));
  64. }
  65. { // from classic spirit tests
  66. BOOST_TEST(test("", repeat(0, inf)['x']));
  67. // repeat exact 8
  68. #define rep8 repeat(8)[alpha] >> 'X'
  69. BOOST_TEST(!test("abcdefgX", rep8, false));
  70. BOOST_TEST(test("abcdefghX", rep8));
  71. BOOST_TEST(!test("abcdefghiX", rep8, false));
  72. BOOST_TEST(!test("abcdefgX", rep8, false));
  73. BOOST_TEST(!test("aX", rep8, false));
  74. // repeat 2 to 8
  75. #define rep28 repeat(2, 8)[alpha] >> '*'
  76. BOOST_TEST(test("abcdefg*", rep28));
  77. BOOST_TEST(test("abcdefgh*", rep28));
  78. BOOST_TEST(!test("abcdefghi*", rep28, false));
  79. BOOST_TEST(!test("a*", rep28, false));
  80. // repeat 2 or more
  81. #define rep2_ repeat(2, inf)[alpha] >> '+'
  82. BOOST_TEST(test("abcdefg+", rep2_));
  83. BOOST_TEST(test("abcdefgh+", rep2_));
  84. BOOST_TEST(test("abcdefghi+", rep2_));
  85. BOOST_TEST(test("abcdefg+", rep2_));
  86. BOOST_TEST(!test("a+", rep2_, false));
  87. // repeat 0
  88. #define rep0 repeat(0)[alpha] >> '/'
  89. BOOST_TEST(test("/", rep0));
  90. BOOST_TEST(!test("a/", rep0, false));
  91. // repeat 0 or 1
  92. #define rep01 repeat(0, 1)[alpha >> digit] >> '?'
  93. BOOST_TEST(!test("abcdefg?", rep01, false));
  94. BOOST_TEST(!test("a?", rep01, false));
  95. BOOST_TEST(!test("1?", rep01, false));
  96. BOOST_TEST(!test("11?", rep01, false));
  97. BOOST_TEST(!test("aa?", rep01, false));
  98. BOOST_TEST(test("?", rep01));
  99. BOOST_TEST(test("a1?", rep01));
  100. }
  101. {
  102. BOOST_TEST(test(" a a aaa aa", repeat(7)[char_], space));
  103. BOOST_TEST(test("12345 678 9", repeat(9)[digit], space));
  104. }
  105. {
  106. std::vector<std::string> v;
  107. BOOST_TEST(test_attr("a b c d", repeat(4)[lexeme[+alpha]], v, space) && 4 == v.size() &&
  108. v[0] == "a" && v[1] == "b" && v[2] == "c" && v[3] == "d");
  109. }
  110. {
  111. BOOST_TEST(test("1 2 3", int_ >> repeat(2)[int_], space));
  112. BOOST_TEST(!test("1 2", int_ >> repeat(2)[int_], space));
  113. }
  114. {
  115. std::vector<char> v;
  116. BOOST_TEST(test_attr("1 2 3", int_ >> repeat(2)[int_], v, space));
  117. BOOST_TEST(v.size() == 3 && v[0] == 1 && v[1] == 2 && v[2] == 3);
  118. BOOST_TEST(!test("1 2", int_ >> repeat(2)[int_], space));
  119. }
  120. { // test move only types
  121. std::vector<move_only> v;
  122. BOOST_TEST(test_attr("sss", repeat(3)[synth_move_only], v));
  123. BOOST_TEST_EQ(v.size(), 3);
  124. }
  125. return boost::report_errors();
  126. }