boost/log/utility/functional/matches.hpp

/*
 *          Copyright Andrey Semashev 2007 - 2015.
 * 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)
 */
/*!
 * \file   matches.hpp
 * \author Andrey Semashev
 * \date   30.03.2008
 *
 * This header contains a predicate for checking if the provided string matches a regular expression.
 */
#ifndef BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_
#define BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_
#include <boost/log/detail/config.hpp>
#include <boost/log/detail/header.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
//! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits
template< typename ExpressionT, typename = void >
struct matching_expression_kind;
//! The matching function implementation
template< typename ExpressionT, typename TagT = typename matching_expression_kind< ExpressionT >::type >
struct match_traits;
} // namespace aux
//! The regex matching functor
struct matches_fun
{
    typedef bool result_type;
    template< typename StringT, typename ExpressionT >
    bool operator() (StringT const& str, ExpressionT const& expr) const
    {
        typedef aux::match_traits< ExpressionT > impl;
        return impl::matches(str, expr);
    }
    template< typename StringT, typename ExpressionT, typename ArgT >
    bool operator() (StringT const& str, ExpressionT const& expr, ArgT const& arg) const
    {
        typedef aux::match_traits< ExpressionT > impl;
        return impl::matches(str, expr, arg);
    }
};
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#include <boost/log/detail/footer.hpp>
#endif // BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_