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/*=============================================================================
Copyright (c) 2003 Hartmut Kaiser
http://spirit.sourceforge.net/
Use, modification and distribution is subject to 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 <iostream>
#define BOOST_SPIRIT_SWITCH_CASE_LIMIT 6
#define BOOST_SPIRIT_SELECT_LIMIT 6
#define PHOENIX_LIMIT 6
//#define BOOST_SPIRIT_DEBUG
#include <boost/mpl/list.hpp>
#include <boost/mpl/for_each.hpp>
#include <boost/spirit/include/classic_primitives.hpp>
#include <boost/spirit/include/classic_numerics.hpp>
#include <boost/spirit/include/classic_actions.hpp>
#include <boost/spirit/include/classic_operators.hpp>
#include <boost/spirit/include/classic_rule.hpp>
#include <boost/spirit/include/classic_grammar.hpp>
#include <boost/spirit/include/classic_switch.hpp>
#include <boost/spirit/include/classic_select.hpp>
#include <boost/spirit/include/classic_closure.hpp>
#include <boost/core/lightweight_test.hpp>
using namespace BOOST_SPIRIT_CLASSIC_NS;
namespace test_grammars {
///////////////////////////////////////////////////////////////////////////////
// Test the direct switch_p usage
struct switch_grammar_direct_single
: public grammar<switch_grammar_direct_single>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_direct_single const& /*self*/)
{
r = switch_p [
case_p<'a'>(int_p)
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
struct switch_grammar_direct_default_single1
: public grammar<switch_grammar_direct_default_single1>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_direct_default_single1 const& /*self*/)
{
r = switch_p [
default_p(str_p("default"))
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
struct switch_grammar_direct_default_single2
: public grammar<switch_grammar_direct_default_single2>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_direct_default_single2 const& /*self*/)
{
r = switch_p [
default_p
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
///////////////////////////////////////////////////////////////////////////////
// Test the switch_p usage given a parser as the switch condition
struct switch_grammar_parser_single
: public grammar<switch_grammar_parser_single>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_parser_single const& /*self*/)
{
r = switch_p(anychar_p) [
case_p<'a'>(int_p)
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
struct switch_grammar_parser_default_single1
: public grammar<switch_grammar_parser_default_single1>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_parser_default_single1 const& /*self*/)
{
r = switch_p(anychar_p) [
default_p(str_p("default"))
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
struct switch_grammar_parser_default_single2
: public grammar<switch_grammar_parser_default_single2>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_parser_default_single2 const& /*self*/)
{
r = switch_p(anychar_p) [
default_p
];
}
rule<ScannerT> r;
rule<ScannerT> const& start() const { return r; }
};
};
///////////////////////////////////////////////////////////////////////////////
// Test the switch_p usage given an actor as the switch condition
struct select_result : public BOOST_SPIRIT_CLASSIC_NS::closure<select_result, int>
{
member1 val;
};
struct switch_grammar_actor_single
: public grammar<switch_grammar_actor_single>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_actor_single const& /*self*/)
{
using phoenix::arg1;
r = select_p('a')[r.val = arg1] >>
switch_p(r.val) [
case_p<0>(int_p)
];
}
rule<ScannerT, select_result::context_t> r;
rule<ScannerT, select_result::context_t> const&
start() const { return r; }
};
};
struct switch_grammar_actor_default_single1
: public grammar<switch_grammar_actor_default_single1>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_actor_default_single1 const& /*self*/)
{
using phoenix::arg1;
r = select_p('d')[r.val = arg1] >>
switch_p(r.val) [
default_p(str_p("default"))
];
}
rule<ScannerT, select_result::context_t> r;
rule<ScannerT, select_result::context_t> const&
start() const { return r; }
};
};
struct switch_grammar_actor_default_single2
: public grammar<switch_grammar_actor_default_single2>
{
template <typename ScannerT>
struct definition
{
definition(switch_grammar_actor_default_single2 const& /*self*/)
{
using phoenix::arg1;
r = select_p('d')[r.val = arg1] >>
switch_p(r.val) [
default_p
];
}
rule<ScannerT, select_result::context_t> r;
rule<ScannerT, select_result::context_t> const&
start() const { return r; }
};
};
} // namespace test_grammars
///////////////////////////////////////////////////////////////////////////////
namespace tests {
// Tests for known (to the grammars) sequences
struct check_grammar_unknown {
template <typename GrammarT>
void operator()(GrammarT)
{
GrammarT g;
BOOST_TEST(!parse("a1", g).hit);
BOOST_TEST(!parse("a,", g).hit);
BOOST_TEST(!parse("abcd", g).hit);
BOOST_TEST(!parse("a 1", g, space_p).hit);
BOOST_TEST(!parse("a ,", g, space_p).hit);
BOOST_TEST(!parse("a bcd", g, space_p).hit);
BOOST_TEST(!parse("b1", g).hit);
BOOST_TEST(!parse("b,", g).hit);
BOOST_TEST(!parse("bbcd", g).hit);
BOOST_TEST(!parse("b 1", g, space_p).hit);
BOOST_TEST(!parse("b ,", g, space_p).hit);
BOOST_TEST(!parse("b bcd", g, space_p).hit);
BOOST_TEST(!parse("c1", g).hit);
BOOST_TEST(!parse("c,", g).hit);
BOOST_TEST(!parse("cbcd", g).hit);
BOOST_TEST(!parse("c 1", g, space_p).hit);
BOOST_TEST(!parse("c ,", g, space_p).hit);
BOOST_TEST(!parse("c bcd", g, space_p).hit);
}
};
// Tests for the default branches (with parsers) of the grammars
struct check_grammar_default {
template <typename GrammarT>
void operator()(GrammarT)
{
GrammarT g;
BOOST_TEST(parse("ddefault", g).full);
BOOST_TEST(parse("d default", g, space_p).full);
}
};
// Tests for the default branches (without parsers) of the grammars
struct check_grammar_default_plain {
template <typename GrammarT>
void operator()(GrammarT)
{
GrammarT g;
BOOST_TEST(parse("d", g).full);
BOOST_TEST(parse(" d", g, space_p).full); // JDG 10-18-2005 removed trailing ' ' to
// avoid post skip problems
}
};
// Tests grammars with a single case_p branch
struct check_grammar_single {
template <typename GrammarT>
void operator()(GrammarT)
{
GrammarT g;
BOOST_TEST(parse("a1", g).full);
BOOST_TEST(!parse("a,", g).hit);
BOOST_TEST(!parse("abcd", g).hit);
BOOST_TEST(parse("a 1", g, space_p).full);
BOOST_TEST(!parse("a ,", g, space_p).hit);
BOOST_TEST(!parse("a bcd", g, space_p).hit);
BOOST_TEST(!parse("b1", g).hit);
BOOST_TEST(!parse("b,", g).hit);
BOOST_TEST(!parse("bbcd", g).hit);
BOOST_TEST(!parse("b 1", g, space_p).hit);
BOOST_TEST(!parse("b ,", g, space_p).hit);
BOOST_TEST(!parse("b bcd", g, space_p).hit);
BOOST_TEST(!parse("c1", g).hit);
BOOST_TEST(!parse("c,", g).hit);
BOOST_TEST(!parse("cbcd", g).hit);
BOOST_TEST(!parse("c 1", g, space_p).hit);
BOOST_TEST(!parse("c ,", g, space_p).hit);
BOOST_TEST(!parse("c bcd", g, space_p).hit);
}
};
} // namespace tests
int
main()
{
// Test switch_p with a single case_p branch
typedef boost::mpl::list<
test_grammars::switch_grammar_direct_single,
test_grammars::switch_grammar_parser_single,
test_grammars::switch_grammar_actor_single
> single_list_t;
boost::mpl::for_each<single_list_t>(tests::check_grammar_single());
typedef boost::mpl::list<
test_grammars::switch_grammar_direct_default_single1,
test_grammars::switch_grammar_parser_default_single1,
test_grammars::switch_grammar_actor_default_single1
> default_single_t;
boost::mpl::for_each<default_single_t>(tests::check_grammar_default());
boost::mpl::for_each<default_single_t>(tests::check_grammar_unknown());
typedef boost::mpl::list<
test_grammars::switch_grammar_direct_default_single2,
test_grammars::switch_grammar_parser_default_single2,
test_grammars::switch_grammar_actor_default_single2
> default_plain_single_t;
boost::mpl::for_each<default_plain_single_t>(
tests::check_grammar_default_plain());
return boost::report_errors();
}
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