spirit/test/karma/grammar.cpp
2018-10-01 02:16:04 +03:00

58 lines
1.5 KiB
C++

// Copyright (c) 2001-2011 Hartmut Kaiser
//
// 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)
#include <boost/config/warning_disable.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <boost/spirit/include/karma_operator.hpp>
#include <boost/spirit/include/karma_char.hpp>
#include <boost/spirit/include/karma_string.hpp>
#include <boost/spirit/include/karma_numeric.hpp>
#include <boost/spirit/include/karma_nonterminal.hpp>
#include <boost/spirit/include/karma_action.hpp>
#include <string>
#include <iostream>
#include "test.hpp"
using namespace spirit_test;
using namespace boost::spirit;
using namespace boost::spirit::ascii;
typedef spirit_test::output_iterator<char>::type outiter_type;
struct num_list : karma::grammar<outiter_type, space_type>
{
num_list() : num_list::base_type(start)
{
using boost::spirit::int_;
num1 = int_(123);
num2 = int_(456);
num3 = int_(789);
start = num1 << ',' << num2 << ',' << num3;
}
karma::rule<outiter_type, space_type> start, num1, num2, num3;
};
int
main()
{
{ // simple grammar test
num_list nlist;
BOOST_TEST(test_delimited("123 , 456 , 789 ", nlist, space));
}
{ // direct access to the rules
num_list def;
BOOST_TEST(test_delimited("123 ", def.num1, space));
BOOST_TEST(test_delimited("123 , 456 , 789 ", def.start, space));
}
return boost::report_errors();
}