/////////////////////////////////////////////////////////////////////////////// | |
// 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) && (_MSC_VER >= 1020) | |
# 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 |