95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2013.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file support/xpressive.hpp
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* \author Andrey Semashev
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* \date 18.07.2009
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*
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* This header enables Boost.Xpressive support for Boost.Log.
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*/
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#ifndef BOOST_LOG_SUPPORT_XPRESSIVE_HPP_INCLUDED_
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#define BOOST_LOG_SUPPORT_XPRESSIVE_HPP_INCLUDED_
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#include <boost/mpl/bool.hpp>
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#include <boost/xpressive/basic_regex.hpp>
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#include <boost/xpressive/regex_constants.hpp>
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#include <boost/xpressive/regex_algorithms.hpp>
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#include <boost/log/detail/config.hpp>
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#include <boost/log/utility/functional/matches.hpp>
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#include <boost/log/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The trait verifies if the type can be converted to a Boost.Xpressive regex
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template< typename T >
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struct is_xpressive_regex< T, true >
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{
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private:
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typedef char yes_type;
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struct no_type { char dummy[2]; };
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template< typename U >
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static yes_type check_xpressive_regex(xpressive::basic_regex< U > const&);
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static no_type check_xpressive_regex(...);
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static T& get_T();
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public:
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enum { value = sizeof(check_xpressive_regex(get_T())) == sizeof(yes_type) };
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typedef mpl::bool_< value > type;
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};
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//! The regex matching functor implementation
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template< >
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struct matches_fun_impl< boost_xpressive_expression_tag >
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{
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template< typename StringT, typename T >
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static bool matches(
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StringT const& str,
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xpressive::basic_regex< T > const& expr,
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xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
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{
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return xpressive::regex_match(str, expr, flags);
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}
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template< typename StringT >
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static bool matches(
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StringT const& str,
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xpressive::basic_regex< typename StringT::value_type* > const& expr,
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xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
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{
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return xpressive::regex_match(str.c_str(), expr, flags);
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}
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template< typename StringT >
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static bool matches(
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StringT const& str,
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xpressive::basic_regex< typename StringT::value_type const* > const& expr,
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xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
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{
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return xpressive::regex_match(str.c_str(), expr, flags);
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}
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};
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif // BOOST_LOG_SUPPORT_XPRESSIVE_HPP_INCLUDED_
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