1 /////////////////////////////////////////////////////////////////////////////// 2 // any_matcher.hpp 3 // 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) 7 8 #ifndef BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_ANY_MATCHER_HPP_EAN_10_04_2005 9 #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_ANY_MATCHER_HPP_EAN_10_04_2005 10 11 // MS compatible compilers support #pragma once 12 #if defined(_MSC_VER) 13 # pragma once 14 #endif 15 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> 19 20 namespace boost { namespace xpressive { namespace detail 21 { 22 23 /////////////////////////////////////////////////////////////////////////////// 24 // any_matcher 25 // 26 struct any_matcher 27 { 28 BOOST_XPR_QUANT_STYLE(quant_fixed_width, 1, true) 29 30 template<typename BidiIter, typename Next> matchboost::xpressive::detail::any_matcher31 static bool match(match_state<BidiIter> &state, Next const &next) 32 { 33 if(state.eos()) 34 { 35 return false; 36 } 37 38 ++state.cur_; 39 if(next.match(state)) 40 { 41 return true; 42 } 43 44 --state.cur_; 45 return false; 46 } 47 }; 48 49 }}} 50 51 #endif 52