annotate DEPENDENCIES/generic/include/boost/xpressive/regex_traits.hpp @ 125:34e428693f5d vext

Vext -> Repoint
author Chris Cannam
date Thu, 14 Jun 2018 11:15:39 +0100
parents c530137014c0
children
rev   line source
Chris@16 1 ///////////////////////////////////////////////////////////////////////////////
Chris@16 2 /// \file regex_traits.hpp
Chris@16 3 /// Includes the C regex traits or the CPP regex traits header file depending on the
Chris@16 4 /// BOOST_XPRESSIVE_USE_C_TRAITS macro.
Chris@16 5 //
Chris@16 6 // Copyright 2008 Eric Niebler. Distributed under the Boost
Chris@16 7 // Software License, Version 1.0. (See accompanying file
Chris@16 8 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16 9
Chris@16 10 #ifndef BOOST_XPRESSIVE_REGEX_TRAITS_HPP_EAN_10_04_2005
Chris@16 11 #define BOOST_XPRESSIVE_REGEX_TRAITS_HPP_EAN_10_04_2005
Chris@16 12
Chris@16 13 // MS compatible compilers support #pragma once
Chris@101 14 #if defined(_MSC_VER)
Chris@16 15 # pragma once
Chris@16 16 #endif
Chris@16 17
Chris@16 18 #include <boost/type_traits/is_convertible.hpp>
Chris@16 19 #include <boost/xpressive/detail/detail_fwd.hpp>
Chris@16 20
Chris@16 21 #ifdef BOOST_XPRESSIVE_USE_C_TRAITS
Chris@16 22 # include <boost/xpressive/traits/c_regex_traits.hpp>
Chris@16 23 #else
Chris@16 24 # include <boost/xpressive/traits/cpp_regex_traits.hpp>
Chris@16 25 #endif
Chris@16 26
Chris@16 27 namespace boost { namespace xpressive
Chris@16 28 {
Chris@16 29
Chris@16 30 ///////////////////////////////////////////////////////////////////////////////
Chris@16 31 // regex_traits_version_1_tag
Chris@16 32 /// Tag used to denote that a traits class conforms to the version 1 traits
Chris@16 33 /// interface.
Chris@16 34 struct regex_traits_version_1_tag
Chris@16 35 {
Chris@16 36 };
Chris@16 37
Chris@16 38 ///////////////////////////////////////////////////////////////////////////////
Chris@16 39 // regex_traits_version_2_tag
Chris@16 40 /// Tag used to denote that a traits class conforms to the version 2 traits
Chris@16 41 /// interface.
Chris@16 42 struct regex_traits_version_2_tag
Chris@16 43 : regex_traits_version_1_tag
Chris@16 44 {
Chris@16 45 };
Chris@16 46
Chris@16 47 ///////////////////////////////////////////////////////////////////////////////
Chris@16 48 // regex_traits_version_1_case_fold_tag DEPRECATED use has_fold_case trait
Chris@16 49 /// INTERNAL ONLY
Chris@16 50 ///
Chris@16 51 struct regex_traits_version_1_case_fold_tag
Chris@16 52 : regex_traits_version_1_tag
Chris@16 53 {
Chris@16 54 };
Chris@16 55
Chris@16 56 ///////////////////////////////////////////////////////////////////////////////
Chris@16 57 // has_fold_case
Chris@16 58 /// Trait used to denote that a traits class has the fold_case member function.
Chris@16 59 template<typename Traits>
Chris@16 60 struct has_fold_case
Chris@16 61 : is_convertible<
Chris@16 62 typename Traits::version_tag *
Chris@16 63 , regex_traits_version_1_case_fold_tag *
Chris@16 64 >
Chris@16 65 {
Chris@16 66 };
Chris@16 67
Chris@16 68 ///////////////////////////////////////////////////////////////////////////////
Chris@16 69 // regex_traits
Chris@16 70 /// Thin wrapper around the default regex_traits implementation, either
Chris@16 71 /// cpp_regex_traits or c_regex_traits
Chris@16 72 ///
Chris@16 73 template<typename Char, typename Impl>
Chris@16 74 struct regex_traits
Chris@16 75 : Impl
Chris@16 76 {
Chris@16 77 typedef typename Impl::locale_type locale_type;
Chris@16 78
Chris@16 79 regex_traits()
Chris@16 80 : Impl()
Chris@16 81 {
Chris@16 82 }
Chris@16 83
Chris@16 84 explicit regex_traits(locale_type const &loc)
Chris@16 85 : Impl(loc)
Chris@16 86 {
Chris@16 87 }
Chris@16 88 };
Chris@16 89
Chris@16 90 ///////////////////////////////////////////////////////////////////////////////
Chris@16 91 // lookup_classname
Chris@16 92 /// INTERNAL ONLY
Chris@16 93 template<typename Traits, std::size_t N>
Chris@16 94 inline typename Traits::char_class_type
Chris@16 95 lookup_classname(Traits const &traits, char const (&cname)[N], bool icase)
Chris@16 96 {
Chris@16 97 typename Traits::char_type name[N] = {0};
Chris@16 98 for(std::size_t j = 0; j < N-1; ++j)
Chris@16 99 {
Chris@16 100 name[j] = traits.widen(cname[j]);
Chris@16 101 }
Chris@16 102 return traits.lookup_classname(name, name + N - 1, icase);
Chris@16 103 }
Chris@16 104
Chris@16 105 }}
Chris@16 106
Chris@16 107 #endif