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1 | #ifndef BOOST_METAPARSE_V1_TRANSFORM_HPP |
2 | #define BOOST_METAPARSE_V1_TRANSFORM_HPP | |
3 | ||
4 | // Copyright Abel Sinkovics (abel@sinkovics.hu) 2009 - 2010. | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | #include <boost/metaparse/v1/accept.hpp> | |
10 | #include <boost/metaparse/v1/get_result.hpp> | |
11 | #include <boost/metaparse/v1/get_remaining.hpp> | |
12 | #include <boost/metaparse/v1/get_position.hpp> | |
13 | #include <boost/metaparse/v1/unless_error.hpp> | |
14 | ||
15 | #include <boost/mpl/eval_if.hpp> | |
16 | ||
17 | namespace boost | |
18 | { | |
19 | namespace metaparse | |
20 | { | |
21 | namespace v1 | |
22 | { | |
23 | template <class P, class T> | |
24 | struct transform | |
25 | { | |
26 | private: | |
27 | template <class S, class Pos> | |
28 | struct no_error : | |
29 | accept< | |
30 | typename T::template apply< | |
31 | typename get_result<typename P::template apply<S, Pos> >::type | |
32 | >::type, | |
33 | get_remaining<typename P::template apply<S, Pos> >, | |
34 | get_position<typename P::template apply<S, Pos> > | |
35 | > | |
36 | {}; | |
37 | public: | |
38 | typedef transform type; | |
39 | ||
40 | template <class S, class Pos> | |
41 | struct apply : | |
42 | unless_error<typename P::template apply<S, Pos>, no_error<S, Pos> > | |
43 | {}; | |
44 | }; | |
45 | } | |
46 | } | |
47 | } | |
48 | ||
49 | #endif | |
50 |