66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2013.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file support/spirit_qi.hpp
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* \author Andrey Semashev
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* \date 19.07.2009
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*
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* This header enables Boost.Spirit.Qi support for Boost.Log.
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*/
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#ifndef BOOST_LOG_SUPPORT_SPIRIT_QI_HPP_INCLUDED_
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#define BOOST_LOG_SUPPORT_SPIRIT_QI_HPP_INCLUDED_
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#include <boost/log/detail/config.hpp>
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#include <boost/log/utility/functional/matches.hpp>
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#include <boost/spirit/include/qi_parse.hpp>
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#include <boost/spirit/include/qi_domain.hpp>
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#include <boost/spirit/include/support_component.hpp>
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#include <boost/log/detail/header.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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//! The trait verifies if the type can be converted to a Boost.Spirit.Qi parser
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template< typename T >
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struct is_spirit_qi_parser< T, true > :
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public spirit::traits::is_component< spirit::qi::domain, T >
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{
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};
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//! The matching functor implementation
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template< >
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struct matches_fun_impl< boost_spirit_qi_expression_tag >
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{
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template< typename StringT, typename ParserT >
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static bool matches(
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StringT const& str,
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ParserT const& expr)
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{
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typedef typename StringT::const_iterator const_iterator;
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const_iterator it = str.begin(), end = str.end();
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return (spirit::qi::parse(it, end, expr) && it == end);
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}
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};
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#include <boost/log/detail/footer.hpp>
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#endif // BOOST_LOG_SUPPORT_SPIRIT_QI_HPP_INCLUDED_
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