diff options
Diffstat (limited to '3rdParty/Boost/src/boost/spirit/home/classic/meta')
-rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/classic/meta/as_parser.hpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/classic/meta/as_parser.hpp b/3rdParty/Boost/src/boost/spirit/home/classic/meta/as_parser.hpp new file mode 100644 index 0000000..c5cc82d --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/classic/meta/as_parser.hpp @@ -0,0 +1,113 @@ +/*============================================================================= + Copyright (c) 2002-2003 Joel de Guzman + Copyright (c) 2002-2003 Hartmut Kaiser + http://spirit.sourceforge.net/ + + 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) +=============================================================================*/ +#if !defined(BOOST_SPIRIT_AS_PARSER_HPP) +#define BOOST_SPIRIT_AS_PARSER_HPP + +#include <boost/spirit/home/classic/namespace.hpp> +#include <boost/spirit/home/classic/core/primitives/primitives.hpp> + +namespace boost { namespace spirit { + +BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN + + /////////////////////////////////////////////////////////////////////////// + // + // Helper templates to derive the parser type from an auxilliary type + // and to generate an object of the required parser type given an + // auxilliary object. Supported types to convert are parsers, + // single characters and character strings. + // + /////////////////////////////////////////////////////////////////////////// + namespace impl + { + template<typename T> + struct default_as_parser + { + typedef T type; + static type const& convert(type const& p) + { + return p; + } + }; + + struct char_as_parser + { + typedef chlit<char> type; + static type convert(char ch) + { + return type(ch); + } + }; + + struct wchar_as_parser + { + typedef chlit<wchar_t> type; + static type convert(wchar_t ch) + { + return type(ch); + } + }; + + struct string_as_parser + { + typedef strlit<char const*> type; + static type convert(char const* str) + { + return type(str); + } + }; + + struct wstring_as_parser + { + typedef strlit<wchar_t const*> type; + static type convert(wchar_t const* str) + { + return type(str); + } + }; + } + + template<typename T> + struct as_parser : impl::default_as_parser<T> {}; + + template<> + struct as_parser<char> : impl::char_as_parser {}; + + template<> + struct as_parser<wchar_t> : impl::wchar_as_parser {}; + + template<> + struct as_parser<char*> : impl::string_as_parser {}; + + template<> + struct as_parser<char const*> : impl::string_as_parser {}; + + template<> + struct as_parser<wchar_t*> : impl::wstring_as_parser {}; + + template<> + struct as_parser<wchar_t const*> : impl::wstring_as_parser {}; + + template<int N> + struct as_parser<char[N]> : impl::string_as_parser {}; + + template<int N> + struct as_parser<wchar_t[N]> : impl::wstring_as_parser {}; + + template<int N> + struct as_parser<char const[N]> : impl::string_as_parser {}; + + template<int N> + struct as_parser<wchar_t const[N]> : impl::wstring_as_parser {}; + +BOOST_SPIRIT_CLASSIC_NAMESPACE_END + +}} // namespace BOOST_SPIRIT_CLASSIC_NS + +#endif |