symbols2.cpp 4.5 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146
  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/spirit/include/karma_auxiliary.hpp>
  6. #include <boost/spirit/include/karma_char.hpp>
  7. #include <boost/spirit/include/karma_string.hpp>
  8. #include <boost/spirit/include/karma_operator.hpp>
  9. #include <boost/spirit/include/karma_directive.hpp>
  10. #include <boost/spirit/include/karma_generate.hpp>
  11. #include <boost/spirit/include/karma_nonterminal.hpp>
  12. #include <boost/core/lightweight_test.hpp>
  13. #include <boost/core/lightweight_test_trait.hpp>
  14. #include "test.hpp"
  15. namespace fusion = boost::fusion;
  16. template <typename T>
  17. inline std::vector<T>
  18. make_vector(T const& t1, T const& t2)
  19. {
  20. std::vector<T> v;
  21. v.push_back(t1);
  22. v.push_back(t2);
  23. return v;
  24. }
  25. int main()
  26. {
  27. using spirit_test::test;
  28. using boost::spirit::karma::symbols;
  29. { // advanced
  30. using boost::spirit::karma::rule;
  31. using boost::spirit::karma::lit;
  32. typedef spirit_test::output_iterator<char>::type output_iterator_type;
  33. symbols<char, rule<output_iterator_type> > sym;
  34. rule<output_iterator_type> r1 = lit("Joel");
  35. rule<output_iterator_type> r2 = lit("Hartmut");
  36. rule<output_iterator_type> r3 = lit("Tom");
  37. rule<output_iterator_type> r4 = lit("Kim");
  38. sym.add
  39. ('j', r1.alias())
  40. ('h', r2.alias())
  41. ('t', r3.alias())
  42. ('k', r4.alias())
  43. ;
  44. BOOST_TEST_TRAIT_TRUE((
  45. boost::spirit::traits::is_generator<
  46. symbols<char, rule<output_iterator_type> > >));
  47. BOOST_TEST((test("Joel", sym, 'j')));
  48. BOOST_TEST((test("Hartmut", sym, 'h')));
  49. BOOST_TEST((test("Tom", sym, 't')));
  50. BOOST_TEST((test("Kim", sym, 'k')));
  51. BOOST_TEST((!test("", sym, 'x')));
  52. // test copy
  53. symbols<char, rule<output_iterator_type> > sym2;
  54. sym2 = sym;
  55. BOOST_TEST((test("Joel", sym2, 'j')));
  56. BOOST_TEST((test("Hartmut", sym2, 'h')));
  57. BOOST_TEST((test("Tom", sym2, 't')));
  58. BOOST_TEST((test("Kim", sym2, 'k')));
  59. BOOST_TEST((!test("", sym2, 'x')));
  60. // make sure it plays well with other generators
  61. BOOST_TEST((test("Joelyo", sym << "yo", 'j')));
  62. sym.remove
  63. ('j')
  64. ('h')
  65. ;
  66. BOOST_TEST((!test("", sym, 'j')));
  67. BOOST_TEST((!test("", sym, 'h')));
  68. }
  69. { // more advanced
  70. using boost::spirit::karma::rule;
  71. using boost::spirit::karma::lit;
  72. using boost::spirit::karma::string;
  73. typedef spirit_test::output_iterator<char>::type output_iterator_type;
  74. symbols<char, rule<output_iterator_type, std::string()> > sym;
  75. rule<output_iterator_type, std::string()> r1 = string;
  76. sym.add
  77. ('j', r1.alias())
  78. ('h', r1.alias())
  79. ('t', r1.alias())
  80. ('k', r1.alias())
  81. ;
  82. BOOST_TEST_TRAIT_TRUE((
  83. boost::spirit::traits::is_generator<
  84. symbols<char, std::string> >));
  85. BOOST_TEST((test("Joel", sym, fusion::make_vector('j', "Joel"))));
  86. BOOST_TEST((test("Hartmut", sym, fusion::make_vector('h', "Hartmut"))));
  87. BOOST_TEST((test("Tom", sym, fusion::make_vector('t', "Tom"))));
  88. BOOST_TEST((test("Kim", sym, fusion::make_vector('k', "Kim"))));
  89. BOOST_TEST((!test("", sym, 'x')));
  90. // test copy
  91. symbols<char, rule<output_iterator_type, std::string()> > sym2;
  92. sym2 = sym;
  93. BOOST_TEST((test("Joel", sym2, fusion::make_vector('j', "Joel"))));
  94. BOOST_TEST((test("Hartmut", sym2, fusion::make_vector('h', "Hartmut"))));
  95. BOOST_TEST((test("Tom", sym2, fusion::make_vector('t', "Tom"))));
  96. BOOST_TEST((test("Kim", sym2, fusion::make_vector('k', "Kim"))));
  97. BOOST_TEST((!test("", sym2, 'x')));
  98. // make sure it plays well with other generators
  99. BOOST_TEST((test("Joelyo", sym << "yo", fusion::make_vector('j', "Joel"))));
  100. sym.remove
  101. ('j')
  102. ('h')
  103. ;
  104. BOOST_TEST((!test("", sym, 'j')));
  105. BOOST_TEST((!test("", sym, 'h')));
  106. }
  107. { // test for proto problem with rvalue references (10-11-2011)
  108. symbols<char, std::string> sym;
  109. sym += std::make_pair('j', "Joel");
  110. sym += std::make_pair('h', "Hartmut");
  111. BOOST_TEST((test("Joel", sym, 'j')));
  112. BOOST_TEST((test("Hartmut", sym, 'h')));
  113. }
  114. return boost::report_errors();
  115. }