comparison DEPENDENCIES/generic/include/boost/log/support/xpressive.hpp @ 101:c530137014c0

Update Boost headers (1.58.0)

 /*
- *          Copyright Andrey Semashev 2007 - 2013.
+ *          Copyright Andrey Semashev 2007 - 2015.
  * 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)
  */
 /*!

  */
 
 #ifndef BOOST_LOG_SUPPORT_XPRESSIVE_HPP_INCLUDED_
 #define BOOST_LOG_SUPPORT_XPRESSIVE_HPP_INCLUDED_
 
-#include <boost/mpl/bool.hpp>
+#include <string>
 #include <boost/xpressive/basic_regex.hpp>
 #include <boost/xpressive/regex_constants.hpp>
 #include <boost/xpressive/regex_algorithms.hpp>
 #include <boost/log/detail/config.hpp>
 #include <boost/log/utility/functional/matches.hpp>

 
 BOOST_LOG_OPEN_NAMESPACE
 
 namespace aux {
 
-//! The trait verifies if the type can be converted to a Boost.Xpressive regex
+//! This tag type is used if an expression is recognized as a Boost.Xpressive expression
+struct boost_xpressive_expression_tag;
+
+//! The metafunction detects the matching expression kind and returns a tag that is used to specialize \c match_traits
 template< typename T >
-struct is_xpressive_regex< T, true >
+struct matching_expression_kind< xpressive::basic_regex< T > >
 {
-private:
-    typedef char yes_type;
-    struct no_type { char dummy[2]; };
-
-    template< typename U >
-    static yes_type check_xpressive_regex(xpressive::basic_regex< U > const&);
-    static no_type check_xpressive_regex(...);
-    static T& get_T();
-
-public:
-    enum { value = sizeof(check_xpressive_regex(get_T())) == sizeof(yes_type) };
-    typedef mpl::bool_< value > type;
+    typedef boost_xpressive_expression_tag type;
 };
 
-//! The regex matching functor implementation
-template< >
-struct matches_fun_impl< boost_xpressive_expression_tag >
+//! The matching function implementation
+template< typename ExpressionT >
+struct match_traits< ExpressionT, boost_xpressive_expression_tag >
 {
+    typedef ExpressionT compiled_type;
+    static compiled_type compile(ExpressionT const& expr) { return expr; }
+
     template< typename StringT, typename T >
-    static bool matches(
-        StringT const& str,
-        xpressive::basic_regex< T > const& expr,
-        xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
+    static bool matches(StringT const& str, xpressive::basic_regex< T > const& expr, xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
     {
         return xpressive::regex_match(str, expr, flags);
     }
 
-    template< typename StringT >
-    static bool matches(
-        StringT const& str,
-        xpressive::basic_regex< typename StringT::value_type* > const& expr,
-        xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
+    template< typename CharT, typename TraitsT, typename AllocatorT >
+    static bool matches(std::basic_string< CharT, TraitsT, AllocatorT > const& str, xpressive::basic_regex< const CharT* > const& expr, xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
     {
-        return xpressive::regex_match(str.c_str(), expr, flags);
-    }
-
-    template< typename StringT >
-    static bool matches(
-        StringT const& str,
-        xpressive::basic_regex< typename StringT::value_type const* > const& expr,
-        xpressive::regex_constants::match_flag_type flags = xpressive::regex_constants::match_default)
-    {
-        return xpressive::regex_match(str.c_str(), expr, flags);
+        const CharT* p = str.c_str();
+        return xpressive::regex_match(p, p + str.size(), expr, flags);
     }
 };
 
 } // namespace aux