Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   is_in_range.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   02.09.2012
Chris@16:  *
Chris@16:  * The header contains implementation of an \c is_in_range predicate in template expressions.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <utility>
Chris@16: #include <boost/phoenix/core/actor.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/detail/embedded_string_type.hpp>
Chris@16: #include <boost/log/detail/unary_function_terminal.hpp>
Chris@16: #include <boost/log/detail/attribute_predicate.hpp>
Chris@16: #include <boost/log/expressions/attr_fwd.hpp>
Chris@16: #include <boost/log/expressions/keyword_fwd.hpp>
Chris@16: #include <boost/log/attributes/attribute_name.hpp>
Chris@16: #include <boost/log/attributes/fallback_policy.hpp>
Chris@16: #include <boost/log/utility/functional/in_range.hpp>
Chris@16: #include <boost/log/detail/header.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: BOOST_LOG_OPEN_NAMESPACE
Chris@16: 
Chris@16: namespace expressions {
Chris@16: 
Chris@16: /*!
Chris@16:  * The predicate checks if the attribute value contains a substring. The attribute value is assumed to be of a string type.
Chris@16:  */
Chris@16: #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
Chris@16: 
Chris@16: template< typename T, typename BoundaryT, typename FallbackPolicyT = fallback_to_none >
Chris@16: using attribute_is_in_range = aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT >;
Chris@16: 
Chris@16: #else // !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
Chris@16: 
Chris@16: template< typename T, typename BoundaryT, typename FallbackPolicyT = fallback_to_none >
Chris@16: class attribute_is_in_range :
Chris@16:     public aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT >
Chris@16: {
Chris@16:     typedef aux::attribute_predicate< T, std::pair< BoundaryT, BoundaryT >, in_range_fun, FallbackPolicyT > base_type;
Chris@16: 
Chris@16: public:
Chris@16:     /*!
Chris@16:      * Initializing constructor
Chris@16:      *
Chris@16:      * \param name Attribute name
Chris@16:      * \param boundaries The expected attribute value boundaries
Chris@16:      */
Chris@16:     attribute_is_in_range(attribute_name const& name, std::pair< BoundaryT, BoundaryT > const& boundaries) : base_type(name, boundaries)
Chris@16:     {
Chris@16:     }
Chris@16: 
Chris@16:     /*!
Chris@16:      * Initializing constructor
Chris@16:      *
Chris@16:      * \param name Attribute name
Chris@16:      * \param boundaries The expected attribute value boundaries
Chris@16:      * \param arg Additional parameter for the fallback policy
Chris@16:      */
Chris@16:     template< typename U >
Chris@16:     attribute_is_in_range(attribute_name const& name, std::pair< BoundaryT, BoundaryT > const& boundaries, U const& arg) : base_type(name, boundaries, arg)
Chris@16:     {
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: #endif // !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
Chris@16: 
Chris@16: /*!
Chris@16:  * The function generates a terminal node in a template expression. The node will check if the attribute value
Chris@16:  * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>.
Chris@16:  */
Chris@16: template< typename T, typename FallbackPolicyT, typename TagT, template< typename > class ActorT, typename BoundaryT >
Chris@16: BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_is_in_range< T, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type, FallbackPolicyT > > >
Chris@16: is_in_range(attribute_actor< T, FallbackPolicyT, TagT, ActorT > const& attr, BoundaryT const& least, BoundaryT const& most)
Chris@16: {
Chris@16:     typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type;
Chris@16:     typedef aux::unary_function_terminal< attribute_is_in_range< T, boundary_type, FallbackPolicyT > > terminal_type;
Chris@16:     ActorT< terminal_type > act = {{ terminal_type(attr.get_name(), std::pair< boundary_type, boundary_type >(least, most), attr.get_fallback_policy()) }};
Chris@16:     return act;
Chris@16: }
Chris@16: 
Chris@16: /*!
Chris@16:  * The function generates a terminal node in a template expression. The node will check if the attribute value
Chris@16:  * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>.
Chris@16:  */
Chris@16: template< typename DescriptorT, template< typename > class ActorT, typename BoundaryT >
Chris@16: BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_is_in_range< typename DescriptorT::value_type, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type > > >
Chris@16: is_in_range(attribute_keyword< DescriptorT, ActorT > const&, BoundaryT const& least, BoundaryT const& most)
Chris@16: {
Chris@16:     typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type;
Chris@16:     typedef aux::unary_function_terminal< attribute_is_in_range< typename DescriptorT::value_type, boundary_type > > terminal_type;
Chris@16:     ActorT< terminal_type > act = {{ terminal_type(DescriptorT::get_name(), std::pair< boundary_type, boundary_type >(least, most)) }};
Chris@16:     return act;
Chris@16: }
Chris@16: 
Chris@16: /*!
Chris@16:  * The function generates a terminal node in a template expression. The node will check if the attribute value
Chris@16:  * is in the specified range. The range must be half-open, that is the predicate will be equivalent to <tt>least <= attr < most</tt>.
Chris@16:  */
Chris@16: template< typename T, typename BoundaryT >
Chris@16: BOOST_FORCEINLINE phoenix::actor< aux::unary_function_terminal< attribute_is_in_range< T, typename boost::log::aux::make_embedded_string_type< BoundaryT >::type > > >
Chris@16: is_in_range(attribute_name const& name, BoundaryT const& least, BoundaryT const& most)
Chris@16: {
Chris@16:     typedef typename boost::log::aux::make_embedded_string_type< BoundaryT >::type boundary_type;
Chris@16:     typedef aux::unary_function_terminal< attribute_is_in_range< T, boundary_type > > terminal_type;
Chris@16:     phoenix::actor< terminal_type > act = {{ terminal_type(name, std::pair< boundary_type, boundary_type >(least, most)) }};
Chris@16:     return act;
Chris@16: }
Chris@16: 
Chris@16: } // namespace expressions
Chris@16: 
Chris@16: BOOST_LOG_CLOSE_NAMESPACE // namespace log
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_EXPRESSIONS_PREDICATES_IS_IN_RANGE_HPP_INCLUDED_