| // Copyright (c) 2001-2010 Hartmut Kaiser |
| // |
| // 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_QI_AUTO_NOV_29_2009_0336PM) |
| #define BOOST_SPIRIT_QI_AUTO_NOV_29_2009_0336PM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/spirit/home/support/common_terminals.hpp> |
| #include <boost/spirit/home/support/info.hpp> |
| #include <boost/spirit/home/support/container.hpp> |
| #include <boost/spirit/home/support/detail/hold_any.hpp> |
| #include <boost/spirit/home/qi/domain.hpp> |
| #include <boost/spirit/home/qi/meta_compiler.hpp> |
| #include <boost/spirit/home/qi/skip_over.hpp> |
| #include <boost/spirit/home/qi/parser.hpp> |
| #include <boost/spirit/home/qi/auto/create_parser.hpp> |
| #include <boost/mpl/bool.hpp> |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| namespace boost { namespace spirit |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // Enablers |
| /////////////////////////////////////////////////////////////////////////// |
| template <> |
| struct use_terminal<qi::domain, tag::auto_> // enables auto_ |
| : mpl::true_ {}; |
| }} |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| namespace boost { namespace spirit { namespace qi |
| { |
| using spirit::auto_; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Modifiers> |
| struct auto_parser |
| : parser<auto_parser<Modifiers> > |
| { |
| template <typename Context, typename Iterator> |
| struct attribute |
| { |
| typedef spirit::hold_any type; |
| }; |
| |
| auto_parser(Modifiers const& modifiers) |
| : modifiers_(modifiers) {} |
| |
| template <typename Iterator, typename Context, typename Skipper |
| , typename Attribute> |
| bool parse(Iterator& first, Iterator const& last |
| , Context& context, Skipper const& skipper, Attribute& attr) const |
| { |
| return compile<qi::domain>(create_parser<Attribute>(), modifiers_) |
| .parse(first, last, context, skipper, attr); |
| } |
| |
| template <typename Context> |
| info what(Context& /*context*/) const |
| { |
| return info("auto_"); |
| } |
| |
| Modifiers modifiers_; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // Generator generators: make_xxx function (objects) |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Modifiers> |
| struct make_primitive<tag::auto_, Modifiers> |
| { |
| typedef auto_parser<Modifiers> result_type; |
| |
| result_type operator()(unused_type, Modifiers const& modifiers) const |
| { |
| return result_type(modifiers); |
| } |
| }; |
| }}} |
| |
| #endif |