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spirit/test/qi/repeat.cpp
Hartmut Kaiser b5a81660c3 Spirit: copyright fixes 
[SVN r74246]
2011-09-05 22:32:29 +00:00

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/*=============================================================================
Copyright (c) 2001-2011 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)
=============================================================================*/
#include <string>
#include <vector>
#include <boost/detail/lightweight_test.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/spirit/include/qi_operator.hpp>
#include <boost/spirit/include/qi_char.hpp>
#include <boost/spirit/include/qi_string.hpp>
#include <boost/spirit/include/qi_numeric.hpp>
#include <boost/spirit/include/qi_directive.hpp>
#include <boost/spirit/include/qi_action.hpp>
#include <boost/spirit/include/support_argument.hpp>
#include <boost/spirit/include/phoenix_core.hpp>
#include <boost/spirit/include/phoenix_operator.hpp>
#include <string>
#include <iostream>
#include "test.hpp"
struct x_attr
{
};
namespace boost { namespace spirit { namespace traits
{
template <>
struct container_value<x_attr>
{
typedef char type; // value type of container
};
template <>
struct push_back_container<x_attr, char>
{
static bool call(x_attr& /*c*/, char /*val*/)
{
// push back value type into container
return true;
}
};
}}}
int
main()
{
using spirit_test::test_attr;
using spirit_test::test;
using namespace boost::spirit::ascii;
using boost::spirit::qi::repeat;
using boost::spirit::qi::inf;
using boost::spirit::qi::omit;
using boost::spirit::qi::int_;
using boost::spirit::qi::_1;
using boost::spirit::qi::lexeme;
{
BOOST_TEST(test("aaaaaaaa", repeat[char_])); // kleene synonym
BOOST_TEST(test("aaaaaaaa", repeat(8)[char_]));
BOOST_TEST(!test("aa", repeat(3)[char_]));
BOOST_TEST(test("aaa", repeat(3, 5)[char_]));
BOOST_TEST(test("aaaaa", repeat(3, 5)[char_]));
BOOST_TEST(!test("aaaaaa", repeat(3, 5)[char_]));
BOOST_TEST(!test("aa", repeat(3, 5)[char_]));
BOOST_TEST(test("aaa", repeat(3, inf)[char_]));
BOOST_TEST(test("aaaaa", repeat(3, inf)[char_]));
BOOST_TEST(test("aaaaaa", repeat(3, inf)[char_]));
BOOST_TEST(!test("aa", repeat(3, inf)[char_]));
}
{
std::string s;
BOOST_TEST(test_attr("aaaaaaaa", repeat[char_ >> char_], s)); // kleene synonym
BOOST_TEST(s == "aaaaaaaa");
s.clear();
BOOST_TEST(test_attr("aaaaaaaa", repeat(4)[char_ >> char_], s));
BOOST_TEST(s == "aaaaaaaa");
BOOST_TEST(!test("aa", repeat(3)[char_ >> char_]));
BOOST_TEST(!test("a", repeat(1)[char_ >> char_]));
s.clear();
BOOST_TEST(test_attr("aa", repeat(1, 3)[char_ >> char_], s));
BOOST_TEST(s == "aa");
s.clear();
BOOST_TEST(test_attr("aaaaaa", repeat(1, 3)[char_ >> char_], s));
BOOST_TEST(s == "aaaaaa");
BOOST_TEST(!test("aaaaaaa", repeat(1, 3)[char_ >> char_]));
BOOST_TEST(!test("a", repeat(1, 3)[char_ >> char_]));
s.clear();
BOOST_TEST(test_attr("aaaa", repeat(2, inf)[char_ >> char_], s));
BOOST_TEST(s == "aaaa");
s.clear();
BOOST_TEST(test_attr("aaaaaa", repeat(2, inf)[char_ >> char_], s));
BOOST_TEST(s == "aaaaaa");
BOOST_TEST(!test("aa", repeat(2, inf)[char_ >> char_]));
}
{ // from classic spirit tests
BOOST_TEST(test("", repeat(0, inf)['x']));
// repeat exact 8
#define rep8 repeat(8)[alpha] >> 'X'
BOOST_TEST(!test("abcdefgX", rep8, false));
BOOST_TEST(test("abcdefghX", rep8));
BOOST_TEST(!test("abcdefghiX", rep8, false));
BOOST_TEST(!test("abcdefgX", rep8, false));
BOOST_TEST(!test("aX", rep8, false));
// repeat 2 to 8
#define rep28 repeat(2, 8)[alpha] >> '*'
BOOST_TEST(test("abcdefg*", rep28));
BOOST_TEST(test("abcdefgh*", rep28));
BOOST_TEST(!test("abcdefghi*", rep28, false));
BOOST_TEST(!test("a*", rep28, false));
// repeat 2 or more
#define rep2_ repeat(2, inf)[alpha] >> '+'
BOOST_TEST(test("abcdefg+", rep2_));
BOOST_TEST(test("abcdefgh+", rep2_));
BOOST_TEST(test("abcdefghi+", rep2_));
BOOST_TEST(test("abcdefg+", rep2_));
BOOST_TEST(!test("a+", rep2_, false));
// repeat 0
#define rep0 repeat(0)[alpha] >> '/'
BOOST_TEST(test("/", rep0));
BOOST_TEST(!test("a/", rep0, false));
// repeat 0 or 1
#define rep01 repeat(0, 1)[alpha >> digit] >> '?'
BOOST_TEST(!test("abcdefg?", rep01, false));
BOOST_TEST(!test("a?", rep01, false));
BOOST_TEST(!test("1?", rep01, false));
BOOST_TEST(!test("11?", rep01, false));
BOOST_TEST(!test("aa?", rep01, false));
BOOST_TEST(test("?", rep01));
BOOST_TEST(test("a1?", rep01));
}
{
BOOST_TEST(test(" a a aaa aa", repeat(7)[char_], space));
BOOST_TEST(test("12345 678 9", repeat(9)[digit], space));
}
{
BOOST_TEST(test("aBcdeFGH", no_case[repeat(8)[lower]]));
BOOST_TEST(test("a B cde FGH", no_case[repeat(8)[lower]], space));
}
{
std::vector<std::string> v;
BOOST_TEST(test_attr("a b c d", repeat(4)[lexeme[+alpha]], v, space) && 4 == v.size() &&
v[0] == "a" && v[1] == "b" && v[2] == "c" && v[3] == "d");
}
{
std::string s;
BOOST_TEST(test_attr("bbbb", repeat(4)[char_], s) && s == "bbbb");
s.clear();
BOOST_TEST(test_attr("b b b b", repeat(4)[char_], s, space) && s == "bbbb");
// The following 2 tests show that omit does not inhibit explicit attributes
s.clear();
BOOST_TEST(test_attr("bbbb", omit[repeat(4)[char_('b')]], s) && s == "bbbb");
s.clear();
BOOST_TEST(test_attr("b b b b", omit[repeat(4)[char_('b')]], s, space) && s == "bbbb");
}
{
BOOST_TEST(test("1 2 3", int_ >> repeat(2)[int_], space));
BOOST_TEST(!test("1 2", int_ >> repeat(2)[int_], space));
}
{
std::vector<char> v;
BOOST_TEST(test_attr("1 2 3", int_ >> repeat(2)[int_], v, space));
BOOST_TEST(v.size() == 3 && v[0] == 1 && v[1] == 2 && v[2] == 3);
BOOST_TEST(!test("1 2", int_ >> repeat(2)[int_], space));
}
{ // actions
namespace phx = boost::phoenix;
std::vector<char> v;
BOOST_TEST(test("bbbb", repeat(4)[char_][phx::ref(v) = _1]) && 4 == v.size() &&
v[0] == 'b' && v[1] == 'b' && v[2] == 'b' && v[3] == 'b');
}
{ // more actions
namespace phx = boost::phoenix;
std::vector<int> v;
BOOST_TEST(test("123 456 789", repeat(3)[int_][phx::ref(v) = _1], space) && 3 == v.size() &&
v[0] == 123 && v[1] == 456 && v[2] == 789);
}
{ // lazy repeats
using boost::phoenix::val;
BOOST_TEST(test("aaaaaaaa", repeat(val(8))[char_]));
BOOST_TEST(!test("aa", repeat(val(3))[char_]));
BOOST_TEST(test("aaa", repeat(val(3), val(5))[char_]));
BOOST_TEST(test("aaaaa", repeat(val(3), val(5))[char_]));
BOOST_TEST(!test("aaaaaa", repeat(val(3), val(5))[char_]));
BOOST_TEST(!test("aa", repeat(val(3), val(5))[char_]));
BOOST_TEST(test("aaa", repeat(val(3), val(inf))[char_]));
BOOST_TEST(test("aaaaa", repeat(val(3), val(inf))[char_]));
BOOST_TEST(test("aaaaaa", repeat(val(3), val(inf))[char_]));
BOOST_TEST(!test("aa", repeat(val(3), val(inf))[char_]));
}
{ // more lazy repeats
using boost::phoenix::val;
BOOST_TEST(test("aaa", repeat(3, val(5))[char_]));
BOOST_TEST(test("aaaaa", repeat(val(3), 5)[char_]));
BOOST_TEST(!test("aaaaaa", repeat(3, val(5))[char_]));
BOOST_TEST(!test("aa", repeat(val(3), 5)[char_]));
//#warning "testcase commented out"
BOOST_TEST(test("aaa", repeat(val(3), inf)[char_]));
BOOST_TEST(test("aaaaa", repeat(3, val(inf))[char_]));
BOOST_TEST(test("aaaaaa", repeat(val(3), inf)[char_]));
BOOST_TEST(!test("aa", repeat(3, val(inf))[char_]));
}
{ // attribute customization
x_attr x;
test_attr("abcde", repeat[char_], x);
test_attr("abcde", repeat(5)[char_], x);
test_attr("abcde", repeat(1, 5)[char_], x);
test_attr("abcde", repeat(1, inf)[char_], x);
}
return boost::report_errors();
}
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