145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2015 Joel de Guzman
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#define BOOST_SPIRIT_X3_DEBUG
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/spirit/home/x3.hpp>
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#include <boost/fusion/include/std_pair.hpp>
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#include <boost/fusion/include/vector.hpp>
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#include <vector>
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#include <string>
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#include <cstring>
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#include <iostream>
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#include "test.hpp"
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struct my_error_handler
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{
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template <typename Iterator, typename Exception, typename Context>
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boost::spirit::x3::error_handler_result
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operator()(Iterator&, Iterator const& last, Exception const& x, Context const&) const
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{
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std::cout
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<< "Error! Expecting: "
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<< x.which()
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<< ", got: \""
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<< std::string(x.where(), last)
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<< "\""
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<< std::endl;
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return boost::spirit::x3::error_handler_result::fail;
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}
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};
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struct my_attribute
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{
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bool alive = true;
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void access() const
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{
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BOOST_TEST(alive);
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}
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~my_attribute()
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{
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alive = false;
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}
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friend std::ostream & operator << (std::ostream & os, my_attribute const & attr)
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{
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attr.access();
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return os << "my_attribute";
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}
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};
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int
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main()
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{
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using spirit_test::test_attr;
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using spirit_test::test;
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using namespace boost::spirit::x3::ascii;
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using boost::spirit::x3::rule;
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using boost::spirit::x3::symbols;
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using boost::spirit::x3::int_;
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using boost::spirit::x3::alpha;
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{ // basic tests
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auto a = rule<class a>("a") = 'a';
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auto b = rule<class b>("b") = 'b';
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auto c = rule<class c>("c") = 'c';
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{
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auto start = *(a | b | c);
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BOOST_TEST(test("abcabcacb", start));
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}
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{
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rule<class start> start("start");
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auto start_def =
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start = (a | b) >> (start | b);
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BOOST_TEST(test("aaaabababaaabbb", start_def));
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BOOST_TEST(test("aaaabababaaabba", start_def, false));
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}
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}
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{ // basic tests w/ skipper
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auto a = rule<class a>("a") = 'a';
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auto b = rule<class b>("b") = 'b';
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auto c = rule<class c>("c") = 'c';
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{
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auto start = *(a | b | c);
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BOOST_TEST(test(" a b c a b c a c b ", start, space));
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}
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{
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rule<class start> start("start");
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auto start_def =
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start = (a | b) >> (start | b);
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BOOST_TEST(test(" a a a a b a b a b a a a b b b ", start_def, space));
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BOOST_TEST(test(" a a a a b a b a b a a a b b a ", start_def, space, false));
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}
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}
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{ // std::container attributes
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typedef boost::fusion::vector<int, char> fs;
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rule<class start, std::vector<fs>> start("start");
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auto start_def =
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start = *(int_ >> alpha);
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BOOST_TEST(test("1 a 2 b 3 c", start_def, space));
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}
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{ // error handling
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auto r_def = '(' > int_ > ',' > int_ > ')';
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auto r = r_def.on_error(my_error_handler());
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BOOST_TEST(test("(123,456)", r));
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BOOST_TEST(!test("(abc,def)", r));
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BOOST_TEST(!test("(123,456]", r));
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BOOST_TEST(!test("(123;456)", r));
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BOOST_TEST(!test("[123,456]", r));
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}
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{
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symbols<my_attribute> a{{{ "a", my_attribute{} }}};
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auto b = rule<struct b, my_attribute>("b") = a;
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my_attribute attr;
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BOOST_TEST(test_attr("a", b, attr));
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}
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return boost::report_errors();
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}
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