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authorChanho Park <chanho61.park@samsung.com>2014-12-11 09:55:56 (GMT)
committerChanho Park <chanho61.park@samsung.com>2014-12-11 09:55:56 (GMT)
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+/*
+ * Copyright Andrey Semashev 2007 - 2014.
+ * 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 02.09.2012
+ *
+ * The header contains implementation of a \c matches predicate in template expressions.
+ */
+
+#ifndef BOOST_LOG_EXPRESSIONS_PREDICATES_MATCHES_HPP_INCLUDED_
+#define BOOST_LOG_EXPRESSIONS_PREDICATES_MATCHES_HPP_INCLUDED_
+
+#include <boost/phoenix/core/actor.hpp>
+#include <boost/log/detail/config.hpp>
+#include <boost/log/detail/unary_function_terminal.hpp>
+#include <boost/log/detail/attribute_predicate.hpp>
+#include <boost/log/expressions/attr_fwd.hpp>
+#include <boost/log/expressions/keyword_fwd.hpp>
+#include <boost/log/attributes/attribute_name.hpp>
+#include <boost/log/attributes/fallback_policy.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 expressions {
+
+/*!
+ * The predicate checks if the attribute value matches a regular expression. The attribute value is assumed to be of a string type.
+ */
+template< typename T, typename RegexT, typename FallbackPolicyT = fallback_to_none >
+class attribute_matches :
+ public aux::attribute_predicate< T, typename boost::log::aux::match_traits< RegexT >::compiled_type, matches_fun, FallbackPolicyT >
+{
+ typedef aux::attribute_predicate< T, typename boost::log::aux::match_traits< RegexT >::compiled_type, matches_fun, FallbackPolicyT > base_type;
+
+public:
+ /*!
+ * Initializing constructor
+ *
+ * \param name Attribute name
+ * \param rex The regular expression to match the attribute value against
+ */
+ attribute_matches(attribute_name const& name, RegexT const& rex) : base_type(name, boost::log::aux::match_traits< RegexT >::compile(rex))
+ {
+ }
+
+ /*!
+ * Initializing constructor
+ *
+ * \param name Attribute name
+ * \param rex The regular expression to match the attribute value against
+ * \param arg Additional parameter for the fallback policy
+ */
+ template< typename U >
+ attribute_matches(attribute_name const& name, RegexT const& rex, U const& arg) : base_type(name, boost::log::aux::match_traits< RegexT >::compile(rex), arg)
+ {
+ }
+};
+
+/*!
+ * The function generates a terminal node in a template expression. The node will check if the attribute value,
+ * which is assumed to be a string, matches the specified regular expression.
+ */
+template< typename T, typename FallbackPolicyT, typename TagT, template< typename > class ActorT, typename RegexT >
+BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_matches< T, RegexT, FallbackPolicyT > > >
+matches(attribute_actor< T, FallbackPolicyT, TagT, ActorT > const& attr, RegexT const& rex)
+{
+ typedef aux::unary_function_terminal< attribute_matches< T, RegexT, FallbackPolicyT > > terminal_type;
+ ActorT< terminal_type > act = {{ terminal_type(attr.get_name(), rex, attr.get_fallback_policy()) }};
+ return act;
+}
+
+/*!
+ * The function generates a terminal node in a template expression. The node will check if the attribute value,
+ * which is assumed to be a string, matches the specified regular expression.
+ */
+template< typename DescriptorT, template< typename > class ActorT, typename RegexT >
+BOOST_FORCEINLINE ActorT< aux::unary_function_terminal< attribute_matches< typename DescriptorT::value_type, RegexT > > >
+matches(attribute_keyword< DescriptorT, ActorT > const&, RegexT const& rex)
+{
+ typedef aux::unary_function_terminal< attribute_matches< typename DescriptorT::value_type, RegexT > > terminal_type;
+ ActorT< terminal_type > act = {{ terminal_type(DescriptorT::get_name(), rex) }};
+ return act;
+}
+
+/*!
+ * The function generates a terminal node in a template expression. The node will check if the attribute value,
+ * which is assumed to be a string, matches the specified regular expression.
+ */
+template< typename T, typename RegexT >
+BOOST_FORCEINLINE phoenix::actor< aux::unary_function_terminal< attribute_matches< T, RegexT > > >
+matches(attribute_name const& name, RegexT const& rex)
+{
+ typedef aux::unary_function_terminal< attribute_matches< T, RegexT > > terminal_type;
+ phoenix::actor< terminal_type > act = {{ terminal_type(name, rex) }};
+ return act;
+}
+
+} // namespace expressions
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_EXPRESSIONS_PREDICATES_MATCHES_HPP_INCLUDED_