boost/log/support/regex.hpp
/*
* Copyright Andrey Semashev 2007 - 2013.
* 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 support/regex.hpp
* \author Andrey Semashev
* \date 18.07.2009
*
* This header enables Boost.Regex support for Boost.Log.
*/
#ifndef BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_
#define BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_
#include <boost/regex.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/log/detail/config.hpp>
#include <boost/log/utility/functional/matches.hpp>
#include <boost/log/detail/header.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
//! The trait verifies if the type can be converted to a Boost.Regex expression
template< typename T >
struct is_regex< T, true >
{
private:
typedef char yes_type;
struct no_type { char dummy[2]; };
template< typename CharT, typename TraitsT >
static yes_type check_regex(basic_regex< CharT, TraitsT > const&);
static no_type check_regex(...);
static T& get_T();
public:
enum { value = sizeof(check_regex(get_T())) == sizeof(yes_type) };
typedef mpl::bool_< value > type;
};
//! The regex matching functor implementation
template< >
struct matches_fun_impl< boost_regex_expression_tag >
{
template< typename StringT, typename CharT, typename TraitsT >
static bool matches(
StringT const& str,
basic_regex< CharT, TraitsT > const& expr,
match_flag_type flags = match_default)
{
return boost::regex_match(str.begin(), str.end(), expr, flags);
}
};
} // namespace aux
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#include <boost/log/detail/footer.hpp>
#endif // BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_