128 lines
4.0 KiB
C++
128 lines
4.0 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 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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#include <boost/detail/lightweight_test.hpp>
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#include <boost/spirit/include/qi_operator.hpp>
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#include <boost/spirit/include/qi_char.hpp>
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#include <boost/spirit/include/qi_string.hpp>
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#include <boost/spirit/include/qi_directive.hpp>
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#include <boost/spirit/include/qi_numeric.hpp>
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#include <boost/spirit/include/qi_action.hpp>
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#include <boost/spirit/include/support_argument.hpp>
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#include <boost/spirit/include/phoenix_core.hpp>
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#include <boost/spirit/include/phoenix_operator.hpp>
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#include <string>
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#include <iostream>
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#include "test.hpp"
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int
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main()
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{
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using namespace boost::spirit::ascii;
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using boost::spirit::qi::omit;
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using boost::spirit::qi::unused_type;
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using boost::spirit::qi::unused;
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using boost::spirit::qi::int_;
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using boost::spirit::qi::_1;
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using boost::fusion::vector;
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using boost::fusion::at_c;
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using spirit_test::test;
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using spirit_test::test_attr;
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{
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BOOST_TEST(test("a", omit['a']));
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}
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{
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// omit[] means we don't receive the attribute
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char attr;
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BOOST_TEST((test_attr("abc", omit[char_] >> omit['b'] >> char_, attr)));
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BOOST_TEST((attr == 'c'));
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}
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{
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// If all elements except 1 is omitted, the attribute is
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// a single-element sequence. For this case alone, we allow
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// naked attributes (unwrapped in a fusion sequence).
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char attr;
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BOOST_TEST((test_attr("abc", omit[char_] >> 'b' >> char_, attr)));
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BOOST_TEST((attr == 'c'));
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}
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{
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// omit[] means we don't receive the attribute
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vector<> attr;
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BOOST_TEST((test_attr("abc", omit[char_] >> omit['b'] >> omit[char_], attr)));
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}
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{
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// omit[] means we don't receive the attribute
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// this test is merely a compile test, because using a unused as the
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// explicit attribute doesn't make any sense
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unused_type attr;
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BOOST_TEST((test_attr("abc", omit[char_ >> 'b' >> char_], attr)));
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}
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{
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// omit[] means we don't receive the attribute, if all elements of a
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// sequence have unused attributes, the whole sequence has an unused
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// attribute as well
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vector<char, char> attr;
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BOOST_TEST((test_attr("abcde",
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char_ >> (omit[char_] >> omit['c'] >> omit[char_]) >> char_, attr)));
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BOOST_TEST((at_c<0>(attr) == 'a'));
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BOOST_TEST((at_c<1>(attr) == 'e'));
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}
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{
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// "hello" has an unused_type. unused attrubutes are not part of the sequence
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vector<char, char> attr;
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BOOST_TEST((test_attr("a hello c", char_ >> "hello" >> char_, attr, space)));
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BOOST_TEST((at_c<0>(attr) == 'a'));
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BOOST_TEST((at_c<1>(attr) == 'c'));
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}
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{
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// if only one node in a sequence is left (all the others are omitted),
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// then we need "naked" attributes (not wraped in a tuple)
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int attr;
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BOOST_TEST((test_attr("a 123 c", omit['a'] >> int_ >> omit['c'], attr, space)));
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BOOST_TEST((attr == 123));
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}
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{
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// unused means we don't care about the attribute
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BOOST_TEST((test_attr("abc", char_ >> 'b' >> char_, unused)));
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}
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{ // test action with omitted attribute
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char c = 0;
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using boost::phoenix::ref;
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BOOST_TEST(test("x123\"a string\"", (char_ >> omit[int_] >> "\"a string\"")
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[ref(c) = _1]));
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BOOST_TEST(c == 'x');
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}
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{ // test action with omitted attribute
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int n = 0;
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using boost::phoenix::ref;
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BOOST_TEST(test("x 123 \"a string\"",
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(omit[char_] >> int_ >> "\"a string\"")[ref(n) = _1], space));
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BOOST_TEST(n == 123);
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}
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return boost::report_errors();
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}
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