repeat1.cpp 5.1 KB

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  1. // Copyright (c) 2001-2011 Hartmut Kaiser
  2. //
  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. #include <boost/config/warning_disable.hpp>
  6. #include <boost/detail/lightweight_test.hpp>
  7. #include <boost/assign/std/vector.hpp>
  8. #include <boost/spirit/include/karma_operator.hpp>
  9. #include <boost/spirit/include/karma_char.hpp>
  10. #include <boost/spirit/include/karma_string.hpp>
  11. #include <boost/spirit/include/karma_numeric.hpp>
  12. #include <boost/spirit/include/karma_directive.hpp>
  13. #include <boost/spirit/include/karma_operator.hpp>
  14. #include <boost/spirit/include/karma_action.hpp>
  15. #include <boost/spirit/include/karma_nonterminal.hpp>
  16. #include <boost/spirit/include/karma_auxiliary.hpp>
  17. #include <boost/spirit/include/karma_directive.hpp>
  18. #include <boost/spirit/include/karma_phoenix_attributes.hpp>
  19. #include <boost/spirit/include/support_argument.hpp>
  20. #include <boost/spirit/include/phoenix_core.hpp>
  21. #include <boost/spirit/include/phoenix_operator.hpp>
  22. #include <boost/fusion/include/std_pair.hpp>
  23. #include <string>
  24. #include <iostream>
  25. #include <vector>
  26. #include "test.hpp"
  27. using namespace spirit_test;
  28. ///////////////////////////////////////////////////////////////////////////////
  29. struct action
  30. {
  31. action (std::vector<char>& vec)
  32. : vec(vec), it(vec.begin())
  33. {}
  34. void operator()(unsigned& value, boost::spirit::unused_type, bool& pass) const
  35. {
  36. pass = (it != vec.end());
  37. if (pass)
  38. value = *it++;
  39. }
  40. std::vector<char>& vec;
  41. mutable std::vector<char>::iterator it;
  42. };
  43. ///////////////////////////////////////////////////////////////////////////////
  44. int main()
  45. {
  46. using namespace boost::spirit::ascii;
  47. using boost::spirit::karma::repeat;
  48. using boost::spirit::karma::inf;
  49. using boost::spirit::karma::int_;
  50. using boost::spirit::karma::hex;
  51. using boost::spirit::karma::_1;
  52. { // lazy repeats
  53. using boost::phoenix::val;
  54. std::string str8("aaaaaaaa");
  55. BOOST_TEST(test("aaaaaaaa", repeat[char_], str8)); // kleene synonym
  56. BOOST_TEST(test("aaaaaaaa", repeat(val(8))[char_], str8));
  57. BOOST_TEST(test("aaa", repeat(val(3))[char_], str8));
  58. BOOST_TEST(!test("aaaaaaaa", repeat(val(9))[char_], str8));
  59. std::string str3("aaa");
  60. BOOST_TEST(test("aaaaa", repeat(val(3), val(5))[char_], str8));
  61. BOOST_TEST(test("aaa", repeat(val(3), val(5))[char_], str3));
  62. BOOST_TEST(!test("aaa", repeat(val(4), val(5))[char_], str3));
  63. BOOST_TEST(test("aaa", repeat(val(3), val(inf))[char_], str3));
  64. BOOST_TEST(test("aaaaaaaa", repeat(val(3), val(inf))[char_], str8));
  65. BOOST_TEST(!test("aaa", repeat(val(4), val(inf))[char_], str3));
  66. }
  67. {
  68. std::string str8("aaaaaaaa");
  69. BOOST_TEST(test("aaaaaaaa", repeat[char_], str8)); // kleene synonym
  70. BOOST_TEST(test("aaaaaaaa", repeat(8)[char_], str8));
  71. BOOST_TEST(test("aaa", repeat(3)[char_], str8));
  72. BOOST_TEST(!test("aaaaaaaa", repeat(9)[char_], str8));
  73. std::string str3("aaa");
  74. BOOST_TEST(test("aaaaa", repeat(3, 5)[char_], str8));
  75. BOOST_TEST(test("aaa", repeat(3, 5)[char_], str3));
  76. BOOST_TEST(!test("aaa", repeat(4, 5)[char_], str3));
  77. BOOST_TEST(test("aaa", repeat(3, inf)[char_], str3));
  78. BOOST_TEST(test("aaaaaaaa", repeat(3, inf)[char_], str8));
  79. BOOST_TEST(!test("aaa", repeat(4, inf)[char_], str3));
  80. }
  81. {
  82. std::string str8("aaaaaaaa");
  83. BOOST_TEST(test_delimited("a a a a a a a a ", repeat[char_], str8, space));
  84. BOOST_TEST(test_delimited("a a a a a a a a ", repeat(8)[char_], str8, space));
  85. BOOST_TEST(test_delimited("a a a ", repeat(3)[char_], str8, space));
  86. BOOST_TEST(!test_delimited("a a a a a a a a ", repeat(9)[char_], str8, space));
  87. std::string str3("aaa");
  88. BOOST_TEST(test_delimited("a a a a a ", repeat(3, 5)[char_], str8, space));
  89. BOOST_TEST(test_delimited("a a a ", repeat(3, 5)[char_], str3, space));
  90. BOOST_TEST(!test_delimited("a a a ", repeat(4, 5)[char_], str3, space));
  91. BOOST_TEST(test_delimited("a a a ", repeat(3, inf)[char_], str3, space));
  92. BOOST_TEST(test_delimited("a a a a a a a a ", repeat(3, inf)[char_], str8, space));
  93. BOOST_TEST(!test_delimited("a a a ", repeat(4, inf)[char_], str3, space));
  94. }
  95. {
  96. // make sure user defined end condition is applied if no attribute
  97. // is passed in
  98. using namespace boost::assign;
  99. std::vector<char> v;
  100. v += 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h';
  101. BOOST_TEST(test("[6162636465666768]",
  102. '[' << repeat[hex[action(v)]] << ']'));
  103. }
  104. // we support Phoenix attributes only starting with V2.2
  105. #if SPIRIT_VERSION >= 0x2020
  106. {
  107. namespace ascii = boost::spirit::ascii;
  108. namespace phoenix = boost::phoenix;
  109. char c = 'a';
  110. BOOST_TEST(test("bcd", repeat(3)[ascii::char_[_1 = ++phoenix::ref(c)]]));
  111. c = 'a';
  112. BOOST_TEST(test("bcd", repeat(3)[ascii::char_], ++phoenix::ref(c)));
  113. }
  114. #endif
  115. return boost::report_errors();
  116. }