ceph/src/boost/libs/log/include/boost/log/utility/functional/matches.hpp

   1 /*
   2  *          Copyright Andrey Semashev 2007 - 2015.
   3  * Distributed under the Boost Software License, Version 1.0.
   4  *    (See accompanying file LICENSE_1_0.txt or copy at
   5  *          http://www.boost.org/LICENSE_1_0.txt)
   6  */
   7 /*!
   8  * \file   matches.hpp
   9  * \author Andrey Semashev
  10  * \date   30.03.2008
  11  *
  12  * This header contains a predicate for checking if the provided string matches a regular expression.
  13  */
  14
  15 #ifndef BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_
  16 #define BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_
  17
  18 #include <boost/log/detail/config.hpp>
  19 #include <boost/log/detail/header.hpp>
  20
  21 #ifdef BOOST_HAS_PRAGMA_ONCE
  22 #pragma once
  23 #endif
  24
  25 namespace boost {
  26
  27 BOOST_LOG_OPEN_NAMESPACE
  28
  29 namespace aux {
  30
  31 //! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits
  32 template< typename ExpressionT, typename = void >
  33 struct matching_expression_kind;
  34
  35 //! The matching function implementation
  36 template< typename ExpressionT, typename TagT = typename matching_expression_kind< ExpressionT >::type >
  37 struct match_traits;
  38
  39 } // namespace aux
  40
  41 //! The regex matching functor
  42 struct matches_fun
  43 {
  44     typedef bool result_type;
  45
  46     template< typename StringT, typename ExpressionT >
  47     bool operator() (StringT const& str, ExpressionT const& expr) const
  48     {
  49         typedef aux::match_traits< ExpressionT > impl;
  50         return impl::matches(str, expr);
  51     }
  52     template< typename StringT, typename ExpressionT, typename ArgT >
  53     bool operator() (StringT const& str, ExpressionT const& expr, ArgT const& arg) const
  54     {
  55         typedef aux::match_traits< ExpressionT > impl;
  56         return impl::matches(str, expr, arg);
  57     }
  58 };
  59
  60 BOOST_LOG_CLOSE_NAMESPACE // namespace log
  61
  62 } // namespace boost
  63
  64 #include <boost/log/detail/footer.hpp>
  65
  66 #endif // BOOST_LOG_UTILITY_FUNCTIONAL_MATCHES_HPP_INCLUDED_