sl@0: ///////////////////////////////////////////////////////////////////////////////
sl@0: /// \file regex_traits.hpp
sl@0: /// Includes the C regex traits or the CPP regex traits header file depending on the
sl@0: /// BOOST_XPRESSIVE_USE_C_TRAITS macro.
sl@0: //
sl@0: //  Copyright 2004 Eric Niebler. Distributed under the Boost
sl@0: //  Software License, Version 1.0. (See accompanying file
sl@0: //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: #ifndef BOOST_XPRESSIVE_REGEX_TRAITS_HPP_EAN_10_04_2005
sl@0: #define BOOST_XPRESSIVE_REGEX_TRAITS_HPP_EAN_10_04_2005
sl@0: 
sl@0: // MS compatible compilers support #pragma once
sl@0: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
sl@0: # pragma once
sl@0: #endif
sl@0: 
sl@0: #include <boost/xpressive/detail/detail_fwd.hpp>
sl@0: 
sl@0: #ifdef BOOST_XPRESSIVE_USE_C_TRAITS
sl@0: # include <boost/xpressive/traits/c_regex_traits.hpp>
sl@0: #else
sl@0: # include <boost/xpressive/traits/cpp_regex_traits.hpp>
sl@0: #endif
sl@0: 
sl@0: namespace boost { namespace xpressive
sl@0: {
sl@0: 
sl@0: ///////////////////////////////////////////////////////////////////////////////
sl@0: // regex_traits_version_1_tag
sl@0: /// Tag used to denote that a traits class conforms to the version 1 traits
sl@0: /// interface.
sl@0: struct regex_traits_version_1_tag
sl@0: {
sl@0: };
sl@0: 
sl@0: ///////////////////////////////////////////////////////////////////////////////
sl@0: // regex_traits_version_1_case_fold_tag
sl@0: /// Tag used to denote that a traits class has the fold_case member function.
sl@0: struct regex_traits_version_1_case_fold_tag
sl@0:   : regex_traits_version_1_tag
sl@0: {
sl@0: };
sl@0: 
sl@0: ///////////////////////////////////////////////////////////////////////////////
sl@0: // regex_traits
sl@0: /// Thin wrapper around the default regex_traits implementation, either
sl@0: /// cpp_regex_traits or c_regex_traits
sl@0: ///
sl@0: template<typename Char, typename Impl>
sl@0: struct regex_traits
sl@0:   : Impl
sl@0: {
sl@0:     typedef typename Impl::locale_type locale_type;
sl@0: 
sl@0:     regex_traits()
sl@0:       : Impl()
sl@0:     {
sl@0:     }
sl@0: 
sl@0:     explicit regex_traits(locale_type const &loc)
sl@0:       : Impl(loc)
sl@0:     {
sl@0:     }
sl@0: };
sl@0: 
sl@0: ///////////////////////////////////////////////////////////////////////////////
sl@0: // lookup_classname
sl@0: /// INTERNAL ONLY
sl@0: template<typename Traits, std::size_t N>
sl@0: inline typename Traits::char_class_type
sl@0: lookup_classname(Traits const &traits, char const (&cname)[N], bool icase)
sl@0: {
sl@0:     typename Traits::char_type name[N] = {0};
sl@0:     for(std::size_t j = 0; j < N-1; ++j)
sl@0:     {
sl@0:         name[j] = traits.widen(cname[j]);
sl@0:     }
sl@0:     return traits.lookup_classname(name, name + N - 1, icase);
sl@0: }
sl@0: 
sl@0: }}
sl@0: 
sl@0: #endif