79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
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// Copyright (c) 2001-2011 Hartmut Kaiser
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//
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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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#include <boost/spirit/include/karma_omit.hpp>
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#include <boost/spirit/include/karma.hpp>
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#include <boost/fusion/include/std_pair.hpp>
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#include <boost/phoenix/core.hpp>
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#include <boost/phoenix/operator.hpp>
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#include <iostream>
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#include "test.hpp"
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using namespace spirit_test;
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int main()
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{
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using boost::spirit::karma::_1;
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using boost::spirit::karma::_a;
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using boost::spirit::karma::double_;
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using boost::spirit::karma::int_;
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using boost::spirit::karma::omit;
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using boost::spirit::karma::skip;
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using boost::spirit::karma::rule;
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using boost::spirit::karma::locals;
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typedef spirit_test::output_iterator<char>::type outiter_type;
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// even if omit[] never fails, it has to honor the result of the
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// embedded generator
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{
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typedef std::pair<double, double> attribute_type;
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rule<outiter_type, attribute_type()> r;
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r %= omit[double_(1.0) << double_] | "42";
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attribute_type p1 (1.0, 2.0);
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BOOST_TEST(test("", r, p1));
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attribute_type p2 (10.0, 2.0);
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BOOST_TEST(test("42", r, p2));
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}
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typedef std::pair<std::vector<int>, int> attribute_type;
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rule<outiter_type, attribute_type(), locals<int> > r;
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attribute_type a;
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a.first.push_back(0x01);
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a.first.push_back(0x02);
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a.first.push_back(0x04);
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a.first.push_back(0x08);
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a.second = 0;
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// omit[] is supposed to execute the embedded generator
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{
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std::pair<double, double> p (1.0, 2.0);
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BOOST_TEST(test("2.0", omit[double_] << double_, p));
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r %= omit[ *(int_[_a = _a + _1]) ] << int_[_1 = _a];
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BOOST_TEST(test("15", r, a));
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}
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// skip[] is not supposed to execute the embedded generator
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{
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using boost::spirit::karma::double_;
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using boost::spirit::karma::skip;
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std::pair<double, double> p (1.0, 2.0);
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BOOST_TEST(test("2.0", skip[double_] << double_, p));
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r %= skip[ *(int_[_a = _a + _1]) ] << int_[_1 = _a];
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BOOST_TEST(test("0", r, a));
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}
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return boost::report_errors();
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}
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