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1 | // Copyright (c) 2001-2011 Hartmut Kaiser |
2 | // | |
3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
4 | // file LICENSE_1_0.txt or copy at http://www.boist.org/LICENSE_1_0.txt) | |
5 | ||
6 | #if !defined(BOOST_SPIRIT_ITERATOR_SINK_MAY_27_2007_0133PM) | |
7 | #define BOOST_SPIRIT_ITERATOR_SINK_MAY_27_2007_0133PM | |
8 | ||
9 | #if defined(_MSC_VER) | |
10 | #pragma once | |
11 | #endif | |
12 | ||
13 | #include <boost/iostreams/stream.hpp> | |
14 | #include <boost/spirit/home/karma/detail/generate_to.hpp> | |
15 | ||
16 | /////////////////////////////////////////////////////////////////////////////// | |
17 | namespace boost { namespace spirit { namespace karma { namespace detail | |
18 | { | |
19 | /////////////////////////////////////////////////////////////////////////// | |
20 | template < | |
21 | typename OutputIterator, typename Char, typename CharEncoding | |
22 | , typename Tag | |
23 | > | |
24 | struct iterator_sink | |
25 | { | |
26 | typedef boost::iostreams::sink_tag category; | |
27 | typedef Char char_type; | |
28 | ||
29 | iterator_sink (OutputIterator& sink_) | |
30 | : sink(sink_) | |
31 | {} | |
32 | ||
33 | // Write up to n characters from the buffer s to the output sequence, | |
34 | // returning the number of characters written | |
35 | std::streamsize write (Char const* s, std::streamsize n) | |
36 | { | |
37 | std::streamsize bytes_written = 0; | |
38 | while (n--) { | |
39 | if (!generate_to(sink, *s, CharEncoding(), Tag())) | |
40 | break; | |
41 | ++s; ++bytes_written; | |
42 | } | |
43 | return bytes_written; | |
44 | } | |
45 | ||
46 | OutputIterator& sink; | |
47 | ||
48 | private: | |
49 | // silence MSVC warning C4512: assignment operator could not be generated | |
50 | iterator_sink& operator= (iterator_sink const&); | |
51 | }; | |
52 | ||
53 | }}}} | |
54 | ||
55 | #endif |