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

   1 /*=============================================================================
   2     Copyright (c) 2001-2014 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 <boost/spirit/home/x3.hpp>
   8 #include <boost/fusion/include/std_pair.hpp>
   9
  10 #include <iostream>
  11 #include <string>
  12 #include "test.hpp"
  13
  14 using boost::spirit::x3::rule;
  15
  16 rule<class direct_rule, int> direct_rule = "direct_rule";
  17 rule<class indirect_rule, int> indirect_rule = "indirect_rule";
  18
  19 auto const direct_rule_def = boost::spirit::x3::int_;
  20 auto const indirect_rule_def = direct_rule;
  21
  22 BOOST_SPIRIT_DEFINE(direct_rule, indirect_rule)
  23
  24 int main()
  25 {
  26     using spirit_test::test;
  27     using spirit_test::test_attr;
  28     using namespace boost::spirit::x3::ascii;
  29     using boost::spirit::x3::raw;
  30     using boost::spirit::x3::eps;
  31     using boost::spirit::x3::lit;
  32     using boost::spirit::x3::_attr;
  33     using boost::spirit::x3::parse;
  34     using boost::spirit::x3::int_;
  35     using boost::spirit::x3::char_;
  36
  37     BOOST_SPIRIT_ASSERT_CONSTEXPR_CTORS(raw['x']);
  38
  39     {
  40         boost::iterator_range<char const*> range;
  41         std::string str;
  42         BOOST_TEST((test_attr("spirit_test_123", raw[alpha >> *(alnum | '_')], range)));
  43         BOOST_TEST((std::string(range.begin(), range.end()) == "spirit_test_123"));
  44         BOOST_TEST((test_attr("  spirit", raw[*alpha], range, space)));
  45         BOOST_TEST((range.size() == 6));
  46     }
  47
  48     {
  49         std::string str;
  50         BOOST_TEST((test_attr("spirit_test_123", raw[alpha >> *(alnum | '_')], str)));
  51         BOOST_TEST((str == "spirit_test_123"));
  52
  53         str.clear();
  54         BOOST_TEST((test_attr("x123", alpha >> raw[+alnum], str)))
  55           && BOOST_TEST_EQ(str, "x123");
  56     }
  57
  58     {
  59         boost::iterator_range<char const*> range;
  60         BOOST_TEST((test("x", raw[alpha])));
  61         BOOST_TEST((test_attr("x", raw[alpha], range)));
  62         BOOST_TEST((test_attr("x", raw[alpha] >> eps, range)));
  63     }
  64
  65     {
  66         boost::iterator_range<char const*> range;
  67         BOOST_TEST((test("x", raw[alpha][ ([&](auto& ctx){ range = _attr(ctx); }) ])));
  68         BOOST_TEST(range.size() == 1 && *range.begin() == 'x');
  69     }
  70
  71     {
  72         boost::iterator_range<char const*> range;
  73         BOOST_TEST((test("x123x", lit('x') >> raw[+digit] >> lit('x'))));
  74         BOOST_TEST((test_attr("x123x", lit('x') >> raw[+digit] >> lit('x'), range)));
  75         BOOST_TEST((std::string(range.begin(), range.end()) == "123"));
  76     }
  77
  78     {
  79         using range = boost::iterator_range<std::string::iterator>;
  80         boost::variant<int, range> attr;
  81
  82         std::string str("test");
  83         parse(str.begin(), str.end(),  (int_ | raw[*char_]), attr);
  84
  85         auto rng = boost::get<range>(attr);
  86         BOOST_TEST(std::string(rng.begin(), rng.end()) == "test");
  87     }
  88
  89     {
  90         std::vector<boost::iterator_range<std::string::iterator>> attr;
  91         std::string str("123abcd");
  92         parse(str.begin(), str.end()
  93           , (raw[int_] >> raw[*char_])
  94           , attr
  95         );
  96         BOOST_TEST(attr.size() == 2);
  97         BOOST_TEST(std::string(attr[0].begin(), attr[0].end()) == "123");
  98         BOOST_TEST(std::string(attr[1].begin(), attr[1].end()) == "abcd");
  99     }
 100
 101     {
 102         std::pair<int, boost::iterator_range<std::string::iterator>> attr;
 103         std::string str("123abcd");
 104         parse(str.begin(), str.end()
 105           , (int_ >> raw[*char_])
 106           , attr
 107         );
 108         BOOST_TEST(attr.first == 123);
 109         BOOST_TEST(std::string(attr.second.begin(), attr.second.end()) == "abcd");
 110     }
 111
 112     {
 113         // test with simple rule
 114         boost::iterator_range<char const*> range;
 115         BOOST_TEST((test_attr("123", raw[direct_rule], range)));
 116         BOOST_TEST((std::string(range.begin(), range.end()) == "123"));
 117     }
 118
 119     {
 120         // test with complex rule
 121         boost::iterator_range<char const*> range;
 122         BOOST_TEST((test_attr("123", raw[indirect_rule], range)));
 123         BOOST_TEST((std::string(range.begin(), range.end()) == "123"));
 124     }
 125
 126     return boost::report_errors();
 127 }