1 ///////////////////////////////////////////////////////////////////////////////
4 // Copyright 2008 Eric Niebler. Distributed under the Boost
5 // Software License, Version 1.0. (See accompanying file
6 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
8 #ifndef BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_EPSILON_MATCHER_HPP_EAN_10_04_2005
9 #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_EPSILON_MATCHER_HPP_EAN_10_04_2005
11 // MS compatible compilers support #pragma once
16 #include <boost/xpressive/detail/detail_fwd.hpp>
17 #include <boost/xpressive/detail/core/quant_style.hpp>
18 #include <boost/xpressive/detail/core/state.hpp>
20 namespace boost { namespace xpressive { namespace detail
23 ///////////////////////////////////////////////////////////////////////////////
26 struct epsilon_matcher
28 BOOST_XPR_QUANT_STYLE(quant_none, 0, true)
30 template<typename BidiIter, typename Next>
31 static bool match(match_state<BidiIter> &state, Next const &next)
33 return next.match(state);