ceph/src/boost/libs/spirit/test/karma/repeat1.cpp

   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
   6 #include <boost/config/warning_disable.hpp>
   7 #include <boost/detail/lightweight_test.hpp>
   8
   9 #include <boost/assign/std/vector.hpp>
  10
  11 #include <boost/spirit/include/karma_operator.hpp>
  12 #include <boost/spirit/include/karma_char.hpp>
  13 #include <boost/spirit/include/karma_string.hpp>
  14 #include <boost/spirit/include/karma_numeric.hpp>
  15 #include <boost/spirit/include/karma_directive.hpp>
  16 #include <boost/spirit/include/karma_operator.hpp>
  17 #include <boost/spirit/include/karma_action.hpp>
  18 #include <boost/spirit/include/karma_nonterminal.hpp>
  19 #include <boost/spirit/include/karma_auxiliary.hpp>
  20 #include <boost/spirit/include/karma_directive.hpp>
  21 #include <boost/spirit/include/karma_phoenix_attributes.hpp>
  22 #include <boost/spirit/include/support_argument.hpp>
  23 #include <boost/spirit/include/phoenix_core.hpp>
  24 #include <boost/spirit/include/phoenix_operator.hpp>
  25 #include <boost/fusion/include/std_pair.hpp>
  26
  27 #include <string>
  28 #include <iostream>
  29 #include <vector>
  30
  31 #include "test.hpp"
  32
  33 using namespace spirit_test;
  34
  35 ///////////////////////////////////////////////////////////////////////////////
  36 struct action
  37 {
  38     action (std::vector<char>& vec)
  39       : vec(vec), it(vec.begin())
  40     {}
  41
  42     void operator()(unsigned& value, boost::spirit::unused_type, bool& pass) const
  43     {
  44        pass = (it != vec.end());
  45        if (pass)
  46            value = *it++;
  47     }
  48
  49     std::vector<char>& vec;
  50     mutable std::vector<char>::iterator it;
  51 };
  52
  53 ///////////////////////////////////////////////////////////////////////////////
  54 int main()
  55 {
  56     using namespace boost::spirit::ascii;
  57     using boost::spirit::karma::repeat;
  58     using boost::spirit::karma::inf;
  59     using boost::spirit::karma::int_;
  60     using boost::spirit::karma::hex;
  61     using boost::spirit::karma::_1;
  62
  63     { // lazy repeats
  64         using boost::phoenix::val;
  65
  66         std::string str8("aaaaaaaa");
  67         BOOST_TEST(test("aaaaaaaa", repeat[char_], str8));   // kleene synonym
  68         BOOST_TEST(test("aaaaaaaa", repeat(val(8))[char_], str8));
  69         BOOST_TEST(test("aaa", repeat(val(3))[char_], str8));
  70         BOOST_TEST(!test("aaaaaaaa", repeat(val(9))[char_], str8));
  71
  72         std::string str3("aaa");
  73         BOOST_TEST(test("aaaaa", repeat(val(3), val(5))[char_], str8));
  74         BOOST_TEST(test("aaa", repeat(val(3), val(5))[char_], str3));
  75         BOOST_TEST(!test("aaa", repeat(val(4), val(5))[char_], str3));
  76
  77         BOOST_TEST(test("aaa", repeat(val(3), val(inf))[char_], str3));
  78         BOOST_TEST(test("aaaaaaaa", repeat(val(3), val(inf))[char_], str8));
  79         BOOST_TEST(!test("aaa", repeat(val(4), val(inf))[char_], str3));
  80     }
  81
  82
  83     {
  84         std::string str8("aaaaaaaa");
  85         BOOST_TEST(test("aaaaaaaa", repeat[char_], str8));   // kleene synonym
  86         BOOST_TEST(test("aaaaaaaa", repeat(8)[char_], str8));
  87         BOOST_TEST(test("aaa", repeat(3)[char_], str8));
  88         BOOST_TEST(!test("aaaaaaaa", repeat(9)[char_], str8));
  89
  90         std::string str3("aaa");
  91         BOOST_TEST(test("aaaaa", repeat(3, 5)[char_], str8));
  92         BOOST_TEST(test("aaa", repeat(3, 5)[char_], str3));
  93         BOOST_TEST(!test("aaa", repeat(4, 5)[char_], str3));
  94
  95         BOOST_TEST(test("aaa", repeat(3, inf)[char_], str3));
  96         BOOST_TEST(test("aaaaaaaa", repeat(3, inf)[char_], str8));
  97         BOOST_TEST(!test("aaa", repeat(4, inf)[char_], str3));
  98     }
  99
 100     {
 101         std::string str8("aaaaaaaa");
 102         BOOST_TEST(test_delimited("a a a a a a a a ", repeat[char_], str8, space));
 103         BOOST_TEST(test_delimited("a a a a a a a a ", repeat(8)[char_], str8, space));
 104         BOOST_TEST(test_delimited("a a a ", repeat(3)[char_], str8, space));
 105         BOOST_TEST(!test_delimited("a a a a a a a a ", repeat(9)[char_], str8, space));
 106
 107         std::string str3("aaa");
 108         BOOST_TEST(test_delimited("a a a a a ", repeat(3, 5)[char_], str8, space));
 109         BOOST_TEST(test_delimited("a a a ", repeat(3, 5)[char_], str3, space));
 110         BOOST_TEST(!test_delimited("a a a ", repeat(4, 5)[char_], str3, space));
 111
 112         BOOST_TEST(test_delimited("a a a ", repeat(3, inf)[char_], str3, space));
 113         BOOST_TEST(test_delimited("a a a a a a a a ", repeat(3, inf)[char_], str8, space));
 114         BOOST_TEST(!test_delimited("a a a ", repeat(4, inf)[char_], str3, space));
 115     }
 116
 117     {
 118         // make sure user defined end condition is applied if no attribute
 119         // is passed in
 120         using namespace boost::assign;
 121
 122         std::vector<char> v;
 123         v += 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h';
 124         BOOST_TEST(test("[6162636465666768]",
 125             '[' << repeat[hex[action(v)]] << ']'));
 126     }
 127
 128 // we support Phoenix attributes only starting with V2.2
 129 #if SPIRIT_VERSION >= 0x2020
 130     {
 131         namespace ascii = boost::spirit::ascii;
 132         namespace phoenix = boost::phoenix;
 133
 134         char c = 'a';
 135         BOOST_TEST(test("bcd", repeat(3)[ascii::char_[_1 = ++phoenix::ref(c)]]));
 136
 137         c = 'a';
 138         BOOST_TEST(test("bcd", repeat(3)[ascii::char_], ++phoenix::ref(c)));
 139     }
 140 #endif
 141
 142     return boost::report_errors();
 143 }
 144