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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // epsilon_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_EPSILON_MATCHER_HPP_EAN_10_04_2005 | |
9 | #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_EPSILON_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 | // epsilon_matcher | |
25 | // | |
26 | struct epsilon_matcher | |
27 | { | |
28 | BOOST_XPR_QUANT_STYLE(quant_none, 0, true) | |
29 | ||
30 | template<typename BidiIter, typename Next> | |
31 | static bool match(match_state<BidiIter> &state, Next const &next) | |
32 | { | |
33 | return next.match(state); | |
34 | } | |
35 | }; | |
36 | ||
37 | }}} | |
38 | ||
39 | #endif |