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/Src/Dependencies/Boost/boost/xpressive/detail/core/matcher/regex_matcher.hpp

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C++ Header | 63 lines | 39 code | 11 blank | 13 comment | 1 complexity | 716b8eb0f708b1dbc308295c0cbcb461 MD5 | raw file
 1///////////////////////////////////////////////////////////////////////////////
 2// regex_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_REGEX_MATCHER_HPP_EAN_10_04_2005
 9#define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_REGEX_MATCHER_HPP_EAN_10_04_2005
10
11// MS compatible compilers support #pragma once
12#if defined(_MSC_VER) && (_MSC_VER >= 1020)
13# pragma once
14#endif
15
16#include <boost/mpl/assert.hpp>
17#include <boost/xpressive/regex_error.hpp>
18#include <boost/xpressive/regex_constants.hpp>
19#include <boost/xpressive/detail/core/regex_impl.hpp>
20#include <boost/xpressive/detail/detail_fwd.hpp>
21#include <boost/xpressive/detail/core/quant_style.hpp>
22#include <boost/xpressive/detail/core/state.hpp>
23#include <boost/xpressive/detail/core/adaptor.hpp>
24
25namespace boost { namespace xpressive { namespace detail
26{
27
28    ///////////////////////////////////////////////////////////////////////////////
29    // regex_matcher
30    //
31    template<typename BidiIter>
32    struct regex_matcher
33      : quant_style<quant_variable_width, unknown_width::value, false>
34    {
35        regex_impl<BidiIter> impl_;
36
37        regex_matcher(shared_ptr<regex_impl<BidiIter> > const &impl)
38          : impl_()
39        {
40            this->impl_.xpr_ = impl->xpr_;
41            this->impl_.traits_ = impl->traits_;
42            this->impl_.mark_count_ = impl->mark_count_;
43            this->impl_.hidden_mark_count_ = impl->hidden_mark_count_;
44
45            BOOST_XPR_ENSURE_(this->impl_.xpr_, regex_constants::error_badref, "bad regex reference");
46        }
47
48        template<typename Next>
49        bool match(match_state<BidiIter> &state, Next const &next) const
50        {
51            // regex_matcher is used for embeding a dynamic regex in a static regex. As such,
52            // Next will always point to a static regex.
53            BOOST_MPL_ASSERT((is_static_xpression<Next>));
54
55            // wrap the static xpression in a matchable interface
56            xpression_adaptor<reference_wrapper<Next const>, matchable<BidiIter> > adaptor(boost::cref(next));
57            return push_context_match(this->impl_, state, adaptor);
58        }
59    };
60
61}}}
62
63#endif