6 * Use, modification and distribution are subject to the
7 * Boost Software License, Version 1.0. (See accompanying file
8 * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
13 * LOCATION: see http://www.boost.org for most recent version.
14 * FILE regex_traits.hpp
15 * VERSION see <boost/version.hpp>
16 * DESCRIPTION: Declares regular expression traits classes.
19 #ifndef BOOST_REGEX_TRAITS_HPP_INCLUDED
20 #define BOOST_REGEX_TRAITS_HPP_INCLUDED
22 #ifndef BOOST_REGEX_CONFIG_HPP
23 #include <boost/regex/config.hpp>
25 #ifndef BOOST_REGEX_WORKAROUND_HPP
26 #include <boost/regex/v4/regex_workaround.hpp>
28 #ifndef BOOST_REGEX_SYNTAX_TYPE_HPP
29 #include <boost/regex/v4/syntax_type.hpp>
31 #ifndef BOOST_REGEX_ERROR_TYPE_HPP
32 #include <boost/regex/v4/error_type.hpp>
34 #ifndef BOOST_REGEX_TRAITS_DEFAULTS_HPP_INCLUDED
35 #include <boost/regex/v4/regex_traits_defaults.hpp>
37 #ifndef BOOST_NO_STD_LOCALE
38 # ifndef BOOST_CPP_REGEX_TRAITS_HPP_INCLUDED
39 # include <boost/regex/v4/cpp_regex_traits.hpp>
42 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
43 # ifndef BOOST_C_REGEX_TRAITS_HPP_INCLUDED
44 # include <boost/regex/v4/c_regex_traits.hpp>
47 #if defined(_WIN32) && !defined(BOOST_REGEX_NO_W32)
48 # ifndef BOOST_W32_REGEX_TRAITS_HPP_INCLUDED
49 # include <boost/regex/v4/w32_regex_traits.hpp>
52 #ifndef BOOST_REGEX_FWD_HPP_INCLUDED
53 #include <boost/regex_fwd.hpp>
56 #include "boost/mpl/has_xxx.hpp"
57 #include <boost/static_assert.hpp>
59 #ifdef BOOST_HAS_ABI_HEADERS
60 # include BOOST_ABI_PREFIX
65 template <class charT, class implementationT >
66 struct regex_traits : public implementationT
68 regex_traits() : implementationT() {}
72 // class regex_traits_wrapper.
73 // this is what our implementation will actually store;
74 // it provides default implementations of the "optional"
75 // interfaces that we support, in addition to the
76 // required "standard" ones:
79 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(55500))
80 BOOST_MPL_HAS_XXX_TRAIT_DEF(boost_extensions_tag)
83 struct has_boost_extensions_tag
85 BOOST_STATIC_CONSTANT(bool, value = false);
89 template <class BaseT>
90 struct default_wrapper : public BaseT
92 typedef typename BaseT::char_type char_type;
93 std::string error_string(::boost::regex_constants::error_type e)const
95 return ::boost::re_detail::get_default_error_string(e);
97 ::boost::regex_constants::syntax_type syntax_type(char_type c)const
99 return ((c & 0x7f) == c) ? get_default_syntax_type(static_cast<char>(c)) : ::boost::regex_constants::syntax_char;
101 ::boost::regex_constants::escape_syntax_type escape_syntax_type(char_type c)const
103 return ((c & 0x7f) == c) ? get_default_escape_syntax_type(static_cast<char>(c)) : ::boost::regex_constants::escape_type_identity;
105 int toi(const char_type*& p1, const char_type* p2, int radix)const
107 return ::boost::re_detail::global_toi(p1, p2, radix, *this);
109 char_type translate(char_type c, bool icase)const
111 return (icase ? this->translate_nocase(c) : this->translate(c));
113 char_type translate(char_type c)const
115 return BaseT::translate(c);
117 char_type tolower(char_type c)const
119 return ::boost::re_detail::global_lower(c);
121 char_type toupper(char_type c)const
123 return ::boost::re_detail::global_upper(c);
127 template <class BaseT, bool has_extensions>
128 struct compute_wrapper_base
132 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(55500))
133 template <class BaseT>
134 struct compute_wrapper_base<BaseT, false>
136 typedef default_wrapper<BaseT> type;
140 struct compute_wrapper_base<c_regex_traits<char>, false>
142 typedef default_wrapper<c_regex_traits<char> > type;
144 #ifndef BOOST_NO_WREGEX
146 struct compute_wrapper_base<c_regex_traits<wchar_t>, false>
148 typedef default_wrapper<c_regex_traits<wchar_t> > type;
153 } // namespace re_detail
155 template <class BaseT>
156 struct regex_traits_wrapper
157 : public ::boost::re_detail::compute_wrapper_base<
159 ::boost::re_detail::has_boost_extensions_tag<BaseT>::value
162 regex_traits_wrapper(){}
164 regex_traits_wrapper(const regex_traits_wrapper&);
165 regex_traits_wrapper& operator=(const regex_traits_wrapper&);
170 #ifdef BOOST_HAS_ABI_HEADERS
171 # include BOOST_ABI_SUFFIX