77 lines
2.4 KiB
C++
Executable File
77 lines
2.4 KiB
C++
Executable File
/*=============================================================================
|
|
Copyright (c) 2001-2007 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)
|
|
==============================================================================*/
|
|
#if !defined(BOOST_SPIRIT_EPS_MARCH_23_2007_0454PM)
|
|
#define BOOST_SPIRIT_EPS_MARCH_23_2007_0454PM
|
|
|
|
#include <boost/spirit/home/qi/domain.hpp>
|
|
#include <boost/spirit/home/qi/skip.hpp>
|
|
#include <boost/spirit/home/support/unused.hpp>
|
|
#include <boost/fusion/include/at.hpp>
|
|
|
|
namespace boost { namespace spirit { namespace qi
|
|
{
|
|
struct eps_parser
|
|
{
|
|
template <typename Component, typename Context, typename Iterator>
|
|
struct attribute
|
|
{
|
|
typedef unused_type type;
|
|
};
|
|
|
|
template <
|
|
typename Component
|
|
, typename Iterator, typename Context
|
|
, typename Skipper, typename Attribute>
|
|
static bool parse(
|
|
Component const& /*component*/
|
|
, Iterator& first, Iterator const& last
|
|
, Context& /*context*/, Skipper const& skipper
|
|
, Attribute& /*attr*/)
|
|
{
|
|
qi::skip(first, last, skipper);
|
|
return true;
|
|
}
|
|
|
|
template <typename Component, typename Context>
|
|
static std::string what(Component const& component, Context const& ctx)
|
|
{
|
|
return "eps";
|
|
}
|
|
};
|
|
|
|
struct semantic_predicate
|
|
{
|
|
template <typename Component, typename Context, typename Iterator>
|
|
struct attribute
|
|
{
|
|
typedef unused_type type;
|
|
};
|
|
|
|
template <
|
|
typename Component
|
|
, typename Iterator, typename Context
|
|
, typename Skipper, typename Attribute>
|
|
static bool parse(
|
|
Component const& component
|
|
, Iterator& first, Iterator const& last
|
|
, Context& context, Skipper const& skipper
|
|
, Attribute& /*attr*/)
|
|
{
|
|
qi::skip(first, last, skipper);
|
|
return fusion::at_c<0>(component.elements)(unused, context);
|
|
}
|
|
|
|
template <typename Component, typename Context>
|
|
static std::string what(Component const& component, Context const& ctx)
|
|
{
|
|
return "semantic-predicate";
|
|
}
|
|
};
|
|
}}}
|
|
|
|
#endif
|