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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 support/regex.hpp | |
9 | * \author Andrey Semashev | |
10 | * \date 18.07.2009 | |
11 | * | |
12 | * This header enables Boost.Regex support for Boost.Log. | |
13 | */ | |
14 | ||
15 | #ifndef BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_ | |
16 | #define BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_ | |
17 | ||
18 | #include <string> | |
19 | #include <boost/regex.hpp> | |
20 | #include <boost/log/detail/config.hpp> | |
21 | #include <boost/log/utility/functional/matches.hpp> | |
22 | #include <boost/log/detail/header.hpp> | |
23 | ||
24 | #ifdef BOOST_HAS_PRAGMA_ONCE | |
25 | #pragma once | |
26 | #endif | |
27 | ||
28 | namespace boost { | |
29 | ||
30 | BOOST_LOG_OPEN_NAMESPACE | |
31 | ||
32 | namespace aux { | |
33 | ||
34 | //! This tag type is used if an expression is recognized as a Boost.Regex expression | |
35 | struct boost_regex_expression_tag; | |
36 | ||
37 | //! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits | |
38 | template< typename CharT, typename TraitsT > | |
39 | struct matching_expression_kind< boost::basic_regex< CharT, TraitsT > > | |
40 | { | |
41 | typedef boost_regex_expression_tag type; | |
42 | }; | |
43 | ||
44 | //! The matching function implementation | |
45 | template< typename ExpressionT > | |
46 | struct match_traits< ExpressionT, boost_regex_expression_tag > | |
47 | { | |
48 | typedef ExpressionT compiled_type; | |
49 | static compiled_type compile(ExpressionT const& expr) { return expr; } | |
50 | ||
51 | template< typename StringT, typename CharT, typename TraitsT > | |
52 | 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) | |
53 | { | |
54 | return boost::regex_match(str.begin(), str.end(), expr, flags); | |
55 | } | |
56 | ||
57 | template< typename CharT, typename StringTraitsT, typename AllocatorT, typename ReTraitsT > | |
58 | static bool matches( | |
59 | std::basic_string< CharT, StringTraitsT, AllocatorT > const& str, | |
60 | boost::basic_regex< CharT, ReTraitsT > const& expr, | |
61 | boost::regex_constants::match_flag_type flags = boost::regex_constants::match_default) | |
62 | { | |
63 | const CharT* p = str.c_str(); | |
64 | return boost::regex_match(p, p + str.size(), expr, flags); | |
65 | } | |
66 | }; | |
67 | ||
68 | } // namespace aux | |
69 | ||
70 | BOOST_LOG_CLOSE_NAMESPACE // namespace log | |
71 | ||
72 | } // namespace boost | |
73 | ||
74 | #include <boost/log/detail/footer.hpp> | |
75 | ||
76 | #endif // BOOST_LOG_SUPPORT_REGEX_HPP_INCLUDED_ |