spirit/test/qi/rule1.cpp

164 lines
4.4 KiB
C++

/*=============================================================================
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 <boost/detail/lightweight_test.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_auxiliary.hpp>
#include <boost/spirit/include/qi_directive.hpp>
#include <boost/spirit/include/qi_nonterminal.hpp>
#include <boost/spirit/include/qi_action.hpp>
#include <boost/fusion/include/std_pair.hpp>
#include <string>
#include <cstring>
#include <iostream>
#include "test.hpp"
int
main()
{
using spirit_test::test_attr;
using spirit_test::test;
using namespace boost::spirit::ascii;
using namespace boost::spirit::qi::labels;
using boost::spirit::qi::locals;
using boost::spirit::qi::rule;
using boost::spirit::qi::int_;
using boost::spirit::qi::uint_;
using boost::spirit::qi::fail;
using boost::spirit::qi::on_error;
using boost::spirit::qi::debug;
using boost::spirit::qi::lit;
{ // basic tests
rule<char const*> a, b, c, start;
a = 'a';
b = 'b';
c = 'c';
a.name("a");
b.name("b");
c.name("c");
start.name("start");
debug(a);
debug(b);
debug(c);
debug(start);
start = *(a | b | c);
BOOST_TEST(test("abcabcacb", start));
start = (a | b) >> (start | b);
BOOST_TEST(test("aaaabababaaabbb", start));
BOOST_TEST(test("aaaabababaaabba", start, false));
// ignore the skipper!
BOOST_TEST(test("aaaabababaaabba", start, space, false));
}
{ // basic tests with direct initialization
rule<char const*> a ('a');
rule<char const*> b ('b');
rule<char const*> c ('c');
#ifdef BOOST_CLANG
# pragma clang diagnostic push
// variable 'start' is uninitialized when used within its own initialization
# pragma clang diagnostic ignored "-Wuninitialized"
#endif
rule<char const*> start = (a | b) >> (start | b);
#ifdef BOOST_CLANG
# pragma clang diagnostic pop
#endif
BOOST_TEST(test("aaaabababaaabbb", start));
BOOST_TEST(test("aaaabababaaabba", start, false));
// ignore the skipper!
BOOST_TEST(test("aaaabababaaabba", start, space, false));
}
{ // basic tests w/ skipper
rule<char const*, space_type> a, b, c, start;
a = 'a';
b = 'b';
c = 'c';
a.name("a");
b.name("b");
c.name("c");
start.name("start");
debug(a);
debug(b);
debug(c);
debug(start);
start = *(a | b | c);
BOOST_TEST(test(" a b c a b c a c b ", start, space));
start = (a | b) >> (start | b);
BOOST_TEST(test(" a a a a b a b a b a a a b b b ", start, space));
BOOST_TEST(test(" a a a a b a b a b a a a b b a ", start, space, false));
}
{ // basic tests w/ skipper but no final post-skip
rule<char const*, space_type> a, b, c, start;
a = 'a';
b = 'b';
c = 'c';
a.name("a");
b.name("b");
c.name("c");
start.name("start");
debug(a);
debug(b);
debug(c);
debug(start);
start = *(a | b) >> c;
using boost::spirit::qi::phrase_parse;
using boost::spirit::qi::skip_flag;
{
char const *s1 = " a b a a b b a c ... "
, *const e1 = s1 + std::strlen(s1);
BOOST_TEST(phrase_parse(s1, e1, start, space, skip_flag::dont_postskip)
&& s1 == e1 - 5);
}
start = (a | b) >> (start | c);
{
char const *s1 = " a a a a b a b a b a a a b b b c "
, *const e1 = s1 + std::strlen(s1);
BOOST_TEST(phrase_parse(s1, e1, start, space, skip_flag::postskip)
&& s1 == e1);
}
{
char const *s1 = " a a a a b a b a b a a a b b b c "
, *const e1 = s1 + std::strlen(s1);
BOOST_TEST(phrase_parse(s1, e1, start, space, skip_flag::dont_postskip)
&& s1 == e1 - 1);
}
}
return boost::report_errors();
}