projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // literal_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_LITERAL_MATCHER_HPP_EAN_10_04_2005 | |
| 9 | #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_LITERAL_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 | #include <boost/xpressive/detail/utility/traits_utils.hpp> | |
| 20 | ||
| 21 | namespace boost { namespace xpressive { namespace detail | |
| 22 | { | |
| 23 | ||
| 24 | /////////////////////////////////////////////////////////////////////////////// | |
| 25 | // literal_matcher | |
| 26 | // | |
| 27 | template<typename Traits, typename ICase, typename Not> | |
| 28 | struct literal_matcher | |
| 29 | : quant_style_fixed_width<1> | |
| 30 | { | |
| 31 | typedef typename Traits::char_type char_type; | |
| 32 | typedef Not not_type; | |
| 33 | typedef ICase icase_type; | |
| 34 | char_type ch_; | |
| 35 | ||
| 36 | explicit literal_matcher(char_type ch) | |
| 37 | : ch_(ch) | |
| 38 | {} | |
| 39 | ||
| 40 | literal_matcher(char_type ch, Traits const &tr) | |
| 41 | : ch_(detail::translate(ch, tr, icase_type())) | |
| 42 | {} | |
| 43 | ||
| 44 | template<typename BidiIter, typename Next> | |
| 45 | bool match(match_state<BidiIter> &state, Next const &next) const | |
| 46 | { | |
| 47 | if(state.eos() || Not::value == | |
| 48 | (detail::translate(*state.cur_, traits_cast<Traits>(state), icase_type()) == this->ch_)) | |
| 49 | { | |
| 50 | return false; | |
| 51 | } | |
| 52 | ||
| 53 | ++state.cur_; | |
| 54 | if(next.match(state)) | |
| 55 | { | |
| 56 | return true; | |
| 57 | } | |
| 58 | ||
| 59 | --state.cur_; | |
| 60 | return false; | |
| 61 | } | |
| 62 | }; | |
| 63 | ||
| 64 | }}} | |
| 65 | ||
| 66 | #endif |