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