ceph/src/boost/libs/spirit/test/x3/plus.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2015 Joel de Guzman
   3
   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 <string>
   8 #include <vector>
   9
  10 #include <boost/detail/lightweight_test.hpp>
  11 #include <boost/spirit/home/x3.hpp>
  12 #include <boost/fusion/include/vector.hpp>
  13
  14 #include <string>
  15 #include <iostream>
  16 #include "test.hpp"
  17 #include "utils.hpp"
  18
  19 struct x_attr
  20 {
  21 };
  22
  23 namespace boost { namespace spirit { namespace x3 { namespace traits
  24 {
  25     template <>
  26     struct container_value<x_attr>
  27     {
  28         typedef char type; // value type of container
  29     };
  30
  31     template <>
  32     struct push_back_container<x_attr>
  33     {
  34         static bool call(x_attr& /*c*/, char /*val*/)
  35         {
  36             // push back value type into container
  37             return true;
  38         }
  39     };
  40 }}}}
  41
  42 int
  43 main()
  44 {
  45     using spirit_test::test;
  46     using spirit_test::test_attr;
  47     using boost::spirit::x3::char_;
  48     using boost::spirit::x3::alpha;
  49     using boost::spirit::x3::upper;
  50     using boost::spirit::x3::space;
  51     using boost::spirit::x3::digit;
  52     //~ using boost::spirit::x3::no_case;
  53     using boost::spirit::x3::int_;
  54     using boost::spirit::x3::omit;
  55     using boost::spirit::x3::lit;
  56     //~ using boost::spirit::x3::_1;
  57     using boost::spirit::x3::lexeme;
  58
  59     {
  60         BOOST_TEST(test("aaaaaaaa", +char_));
  61         BOOST_TEST(test("a", +char_));
  62         BOOST_TEST(!test("", +char_));
  63         BOOST_TEST(test("aaaaaaaa", +alpha));
  64         BOOST_TEST(!test("aaaaaaaa", +upper));
  65     }
  66
  67     {
  68         BOOST_TEST(test(" a a aaa aa", +char_, space));
  69         BOOST_TEST(test("12345 678 9 ", +digit, space));
  70     }
  71
  72     //~ {
  73         //~ BOOST_TEST(test("aBcdeFGH", no_case[+char_]));
  74         //~ BOOST_TEST(test("a B cde FGH  ", no_case[+char_], space));
  75     //~ }
  76
  77     {
  78         std::vector<int> v;
  79         BOOST_TEST(test_attr("123 456 789 10", +int_, v, space) && 4 == v.size() &&
  80             v[0] == 123 && v[1] == 456 && v[2] == 789 &&  v[3] == 10);
  81     }
  82
  83     {
  84         std::vector<std::string> v;
  85         BOOST_TEST(test_attr("a b c d", +lexeme[+alpha], v, space) && 4 == v.size() &&
  86             v[0] == "a" && v[1] == "b" && v[2] == "c" &&  v[3] == "d");
  87     }
  88
  89     {
  90         BOOST_TEST(test("Kim Kim Kim", +lit("Kim"), space));
  91     }
  92
  93     // $$$ Fixme $$$
  94     /*{
  95         // The following 2 tests show that omit does not inhibit explicit attributes
  96
  97         std::string s;
  98         BOOST_TEST(test_attr("bbbb", omit[+char_('b')], s) && s == "bbbb");
  99
 100         s.clear();
 101         BOOST_TEST(test_attr("b b b b ", omit[+char_('b')], s, space) && s == "bbbb");
 102     }*/
 103
 104     { // actions
 105         std::string v;
 106         auto f = [&](auto& ctx){ v = _attr(ctx); };
 107
 108         BOOST_TEST(test("bbbb", (+char_)[f]) && 4 == v.size() &&
 109             v[0] == 'b' && v[1] == 'b' && v[2] == 'b' &&  v[3] == 'b');
 110     }
 111
 112     { // more actions
 113         std::vector<int> v;
 114         auto f = [&](auto& ctx){ v = _attr(ctx); };
 115
 116         BOOST_TEST(test("1 2 3", (+int_)[f], space) && 3 == v.size() &&
 117             v[0] == 1 && v[1] == 2 && v[2] == 3);
 118     }
 119
 120     { // attribute customization
 121
 122         x_attr x;
 123         test_attr("abcde", +char_, x);
 124     }
 125
 126     // single-element fusion vector tests
 127     {
 128         boost::fusion::vector<std::string> fs;
 129         BOOST_TEST((test_attr("12345", +char_, fs))); // ok
 130         BOOST_TEST(boost::fusion::at_c<0>(fs) == "12345");
 131     }
 132
 133     { // test move only types
 134         std::vector<move_only> v;
 135         BOOST_TEST(test_attr("sss", +synth_move_only, v));
 136         BOOST_TEST_EQ(v.size(), 3);
 137     }
 138
 139     return boost::report_errors();
 140 }