86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
//
|
|
// Copyright (c) 2005 Joao Abecasis
|
|
//
|
|
// 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/spirit/include/classic_core.hpp>
|
|
#include <boost/spirit/include/classic_attribute.hpp>
|
|
#include <boost/spirit/include/classic_grammar_def.hpp>
|
|
|
|
struct my_grammar1
|
|
: BOOST_SPIRIT_CLASSIC_NS::grammar<my_grammar1>
|
|
{
|
|
template <typename Scanner>
|
|
struct definition
|
|
: BOOST_SPIRIT_CLASSIC_NS::grammar_def<
|
|
BOOST_SPIRIT_CLASSIC_NS::rule<Scanner>,
|
|
BOOST_SPIRIT_CLASSIC_NS::same
|
|
>
|
|
{
|
|
definition(my_grammar1 const &)
|
|
{
|
|
BOOST_SPIRIT_DEBUG_NODE(start_rule1);
|
|
BOOST_SPIRIT_DEBUG_NODE(start_rule2);
|
|
|
|
start_rule1 = BOOST_SPIRIT_CLASSIC_NS::str_p("int");
|
|
start_rule2 = BOOST_SPIRIT_CLASSIC_NS::int_p;
|
|
|
|
this->start_parsers(start_rule1, start_rule2);
|
|
}
|
|
|
|
BOOST_SPIRIT_CLASSIC_NS::rule<Scanner>
|
|
start_rule1,
|
|
start_rule2;
|
|
};
|
|
};
|
|
|
|
struct my_closure : BOOST_SPIRIT_CLASSIC_NS::closure<my_closure, int>
|
|
{
|
|
member1 value;
|
|
};
|
|
|
|
struct my_grammar2
|
|
: BOOST_SPIRIT_CLASSIC_NS::grammar<my_grammar2, my_closure::context_t>
|
|
{
|
|
template <typename Scanner>
|
|
struct definition
|
|
: BOOST_SPIRIT_CLASSIC_NS::grammar_def<
|
|
BOOST_SPIRIT_CLASSIC_NS::rule<Scanner>,
|
|
BOOST_SPIRIT_CLASSIC_NS::same
|
|
>
|
|
{
|
|
definition(my_grammar2 const &)
|
|
{
|
|
BOOST_SPIRIT_DEBUG_NODE(start_rule1);
|
|
BOOST_SPIRIT_DEBUG_NODE(start_rule2);
|
|
|
|
start_rule1 = BOOST_SPIRIT_CLASSIC_NS::str_p("int");
|
|
start_rule2 = BOOST_SPIRIT_CLASSIC_NS::int_p;
|
|
|
|
this->start_parsers(start_rule1, start_rule2);
|
|
}
|
|
|
|
BOOST_SPIRIT_CLASSIC_NS::rule<Scanner>
|
|
start_rule1,
|
|
start_rule2;
|
|
};
|
|
};
|
|
|
|
int main()
|
|
{
|
|
my_grammar1 g1;
|
|
my_grammar2 g2;
|
|
|
|
BOOST_SPIRIT_DEBUG_NODE(g1);
|
|
BOOST_SPIRIT_DEBUG_NODE(g2);
|
|
|
|
parse(
|
|
"int 5",
|
|
g1.use_parser<0>() >> g2.use_parser<1>(),
|
|
BOOST_SPIRIT_CLASSIC_NS::space_p
|
|
);
|
|
}
|