1 /*=============================================================================
2 Copyright (c) 1999-2003 Jaakko Jarvi
3 Copyright (c) 1999-2003 Jeremiah Willcock
4 Copyright (c) 2001-2006 Joel de Guzman
6 Distributed under the Boost Software License, Version 1.0. (See accompanying
7 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
8 ==============================================================================*/
9 #if !defined(FUSION_IN_05052005_0121)
10 #define FUSION_IN_05052005_0121
13 #include <boost/fusion/sequence/io/detail/manip.hpp>
15 #include <boost/mpl/bool.hpp>
16 #include <boost/fusion/sequence/intrinsic/begin.hpp>
17 #include <boost/fusion/sequence/intrinsic/end.hpp>
18 #include <boost/fusion/iterator/deref.hpp>
19 #include <boost/fusion/iterator/next.hpp>
20 #include <boost/fusion/iterator/equal_to.hpp>
22 namespace boost { namespace fusion { namespace detail
24 template <typename Tag>
28 template <typename IS>
30 read(IS& is, char const* delim, mpl::false_ = mpl::false_())
32 detail::string_ios_manip<Tag, IS> manip(is);
36 template <typename IS>
38 read(IS&, char const*, mpl::true_)
43 struct read_sequence_loop
45 template <typename IS, typename First, typename Last>
47 call(IS&, First const&, Last const&, mpl::true_)
51 template <typename IS, typename First, typename Last>
53 call(IS& is, First const& first, Last const& last, mpl::false_)
56 typename result_of::next<First>::type
62 delimiter_in<tuple_delimiter_tag>::read(is, " ", is_last);
63 call(is, fusion::next(first), last, is_last);
66 template <typename IS, typename First, typename Last>
68 call(IS& is, First const& first, Last const& last)
70 result_of::equal_to<First, Last> eq;
71 call(is, first, last, eq);
75 template <typename IS, typename Sequence>
77 read_sequence(IS& is, Sequence& seq)
79 delimiter_in<tuple_open_tag>::read(is, "(");
80 read_sequence_loop::call(is, fusion::begin(seq), fusion::end(seq));
81 delimiter_in<tuple_close_tag>::read(is, ")");