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- ///////////////////////////////////////////////////////////////////////////////
- // regex_matcher.hpp
- //
- // Copyright 2008 Eric Niebler. Distributed under the Boost
- // Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #ifndef BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_REGEX_MATCHER_HPP_EAN_10_04_2005
- #define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_REGEX_MATCHER_HPP_EAN_10_04_2005
- // MS compatible compilers support #pragma once
- #if defined(_MSC_VER)
- # pragma once
- #endif
- #include <boost/mpl/assert.hpp>
- #include <boost/xpressive/regex_error.hpp>
- #include <boost/xpressive/regex_constants.hpp>
- #include <boost/xpressive/detail/core/regex_impl.hpp>
- #include <boost/xpressive/detail/detail_fwd.hpp>
- #include <boost/xpressive/detail/core/quant_style.hpp>
- #include <boost/xpressive/detail/core/state.hpp>
- #include <boost/xpressive/detail/core/adaptor.hpp>
- namespace boost { namespace xpressive { namespace detail
- {
- ///////////////////////////////////////////////////////////////////////////////
- // regex_matcher
- //
- template<typename BidiIter>
- struct regex_matcher
- : quant_style<quant_variable_width, unknown_width::value, false>
- {
- regex_impl<BidiIter> impl_;
- regex_matcher(shared_ptr<regex_impl<BidiIter> > const &impl)
- : impl_()
- {
- this->impl_.xpr_ = impl->xpr_;
- this->impl_.traits_ = impl->traits_;
- this->impl_.mark_count_ = impl->mark_count_;
- this->impl_.hidden_mark_count_ = impl->hidden_mark_count_;
- BOOST_XPR_ENSURE_(this->impl_.xpr_, regex_constants::error_badref, "bad regex reference");
- }
- template<typename Next>
- bool match(match_state<BidiIter> &state, Next const &next) const
- {
- // regex_matcher is used for embeding a dynamic regex in a static regex. As such,
- // Next will always point to a static regex.
- BOOST_MPL_ASSERT((is_static_xpression<Next>));
- // wrap the static xpression in a matchable interface
- xpression_adaptor<reference_wrapper<Next const>, matchable<BidiIter> > adaptor(boost::cref(next));
- return push_context_match(this->impl_, state, adaptor);
- }
- };
- }}}
- #endif
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