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77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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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/regex.hpp
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* \author Andrey Semashev
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* \date 18.07.2009
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*
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* This header enables Boost.Regex support for Boost.Log.
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*/
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#ifndef BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_
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#define BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_
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#include <string>
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#include <boost/regex.hpp>
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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/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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//! This tag type is used if an expression is recognized as a Boost.Regex expression
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struct boost_regex_expression_tag;
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//! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits
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template< typename CharT, typename TraitsT >
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struct matching_expression_kind< boost::basic_regex< CharT, TraitsT > >
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{
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typedef boost_regex_expression_tag type;
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};
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//! The matching function implementation
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template< typename ExpressionT >
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struct match_traits< ExpressionT, boost_regex_expression_tag >
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{
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typedef ExpressionT compiled_type;
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static compiled_type compile(ExpressionT const& expr) { return expr; }
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template< typename StringT, typename CharT, typename TraitsT >
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static bool matches(StringT const& str, boost::basic_regex< CharT, TraitsT > const& expr, boost::regex_constants::match_flag_type flags = boost::regex_constants::match_default)
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{
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return boost::regex_match(str.begin(), str.end(), expr, flags);
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}
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template< typename CharT, typename StringTraitsT, typename AllocatorT, typename ReTraitsT >
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static bool matches(
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std::basic_string< CharT, StringTraitsT, AllocatorT > const& str,
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boost::basic_regex< CharT, ReTraitsT > const& expr,
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boost::regex_constants::match_flag_type flags = boost::regex_constants::match_default)
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{
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const CharT* p = str.c_str();
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return boost::regex_match(p, p + str.size(), expr, flags);
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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_REGEX_HPP_INCLUDED_
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