Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 1999-2003 Jaakko Jarvi
Chris@16:     Copyright (c) 1999-2003 Jeremiah Willcock
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying 
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: #if !defined(FUSION_IN_05052005_0121)
Chris@16: #define FUSION_IN_05052005_0121
Chris@16: 
Chris@101: #include <boost/fusion/support/config.hpp>
Chris@16: #include <istream>
Chris@16: #include <boost/fusion/sequence/io/detail/manip.hpp>
Chris@16: 
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/begin.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/end.hpp>
Chris@16: #include <boost/fusion/iterator/deref.hpp>
Chris@16: #include <boost/fusion/iterator/next.hpp>
Chris@16: #include <boost/fusion/iterator/equal_to.hpp>
Chris@16: 
Chris@16: namespace boost { namespace fusion { namespace detail
Chris@16: {
Chris@16:     template <typename Tag>
Chris@16:     struct delimiter_in
Chris@16:     {
Chris@16:         // read a delimiter
Chris@16:         template <typename IS>
Chris@16:         static void
Chris@16:         read(IS& is, char const* delim, mpl::false_ = mpl::false_())
Chris@16:         {
Chris@16:             detail::string_ios_manip<Tag, IS> manip(is);
Chris@16:             manip.read(delim);
Chris@16:         }
Chris@16: 
Chris@16:         template <typename IS>
Chris@16:         static void
Chris@16:         read(IS&, char const*, mpl::true_)
Chris@16:         {
Chris@16:         }
Chris@16:     };
Chris@16: 
Chris@16:     struct read_sequence_loop
Chris@16:     {
Chris@16:         template <typename IS, typename First, typename Last>
Chris@16:         static void
Chris@16:         call(IS&, First const&, Last const&, mpl::true_)
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:         template <typename IS, typename First, typename Last>
Chris@16:         static void
Chris@16:         call(IS& is, First const& first, Last const& last, mpl::false_)
Chris@16:         {
Chris@16:             result_of::equal_to<
Chris@16:                 typename result_of::next<First>::type
Chris@16:               , Last
Chris@16:             >
Chris@16:             is_last;
Chris@16: 
Chris@16:             is >> *first;
Chris@16:             delimiter_in<tuple_delimiter_tag>::read(is, " ", is_last);
Chris@16:             call(is, fusion::next(first), last, is_last);
Chris@16:         }
Chris@16: 
Chris@16:         template <typename IS, typename First, typename Last>
Chris@16:         static void
Chris@16:         call(IS& is, First const& first, Last const& last)
Chris@16:         {
Chris@16:             result_of::equal_to<First, Last> eq;
Chris@16:             call(is, first, last, eq);
Chris@16:         }
Chris@16:     };
Chris@16: 
Chris@16:     template <typename IS, typename Sequence>
Chris@16:     inline void
Chris@16:     read_sequence(IS& is, Sequence& seq)
Chris@16:     {
Chris@16:         delimiter_in<tuple_open_tag>::read(is, "(");
Chris@16:         read_sequence_loop::call(is, fusion::begin(seq), fusion::end(seq));
Chris@16:         delimiter_in<tuple_close_tag>::read(is, ")");
Chris@16:     }
Chris@16: }}}
Chris@16: 
Chris@16: #endif