[857] | 1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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| 2 | // basic_text_iprimitive.ipp:
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| 3 |
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| 4 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
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| 5 | // Distributed under the Boost Software License, Version 1.0. (See
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| 6 | // accompanying file LICENSE_1_0.txt or copy at
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| 7 | // http://www.boost.org/LICENSE_1_0.txt)
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| 8 |
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| 9 | // See http://www.boost.org for updates, documentation, and revision history.
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| 10 |
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| 11 | #include <cstddef> // size_t
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| 12 |
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| 13 | #include <boost/config.hpp>
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| 14 | #if defined(BOOST_NO_STDC_NAMESPACE)
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| 15 | namespace std{
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| 16 | using ::size_t;
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| 17 | } // namespace std
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| 18 | #endif
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| 19 |
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| 20 | #include <boost/throw_exception.hpp>
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| 21 | #include <boost/pfto.hpp>
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| 22 |
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| 23 | #include <boost/archive/basic_text_iprimitive.hpp>
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| 24 | #include <boost/archive/codecvt_null.hpp>
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| 25 | #include <boost/archive/add_facet.hpp>
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| 26 |
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| 27 | #include <boost/archive/iterators/remove_whitespace.hpp>
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| 28 | #include <boost/archive/iterators/istream_iterator.hpp>
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| 29 | #include <boost/archive/iterators/binary_from_base64.hpp>
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| 30 | #include <boost/archive/iterators/transform_width.hpp>
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| 31 |
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| 32 | namespace boost {
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| 33 | namespace archive {
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| 34 |
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| 35 | // translate base64 text into binary and copy into buffer
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| 36 | // until buffer is full.
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| 37 | template<class IStream>
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| 38 | BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
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| 39 | basic_text_iprimitive<IStream>::load_binary(
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| 40 | void *address,
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| 41 | std::size_t count
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| 42 | ){
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| 43 | typedef BOOST_DEDUCED_TYPENAME IStream::char_type CharType;
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| 44 |
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| 45 | if(0 == count)
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| 46 | return;
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| 47 |
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| 48 | assert(
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| 49 | static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)())
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| 50 | > (count + sizeof(CharType) - 1)/sizeof(CharType)
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| 51 | );
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| 52 |
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| 53 | if(is.fail())
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| 54 | boost::throw_exception(archive_exception(archive_exception::stream_error));
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| 55 | // convert from base64 to binary
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| 56 | typedef BOOST_DEDUCED_TYPENAME
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| 57 | iterators::transform_width<
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| 58 | iterators::binary_from_base64<
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| 59 | iterators::remove_whitespace<
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| 60 | iterators::istream_iterator<CharType>
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| 61 | >
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| 62 | ,CharType
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| 63 | >
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| 64 | ,8
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| 65 | ,6
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| 66 | ,CharType
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| 67 | >
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| 68 | binary;
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| 69 |
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| 70 | binary ti_begin = binary(
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| 71 | BOOST_MAKE_PFTO_WRAPPER(
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| 72 | iterators::istream_iterator<CharType>(is)
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| 73 | )
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| 74 | );
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| 75 |
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| 76 | char * caddr = static_cast<char *>(address);
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| 77 | std::size_t padding = 2 - count % 3;
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| 78 |
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| 79 | // take care that we don't increment anymore than necessary
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| 80 | while(--count > 0){
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| 81 | *caddr++ = static_cast<char>(*ti_begin);
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| 82 | ++ti_begin;
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| 83 | }
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| 84 | *caddr++ = static_cast<char>(*ti_begin);
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| 85 |
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| 86 | if(padding > 1)
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| 87 | ++ti_begin;
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| 88 | if(padding > 2)
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| 89 | ++ti_begin;
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| 90 | }
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| 91 |
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| 92 | template<class IStream>
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| 93 | BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
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| 94 | basic_text_iprimitive<IStream>::basic_text_iprimitive(
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| 95 | IStream &is_,
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| 96 | bool no_codecvt
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| 97 | ) :
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| 98 | is(is_),
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| 99 | flags_saver(is_),
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| 100 | precision_saver(is_),
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| 101 | archive_locale(NULL),
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| 102 | locale_saver(is_)
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| 103 | {
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| 104 | if(! no_codecvt){
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| 105 | archive_locale.reset(
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| 106 | add_facet(
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| 107 | std::locale::classic(),
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| 108 | new codecvt_null<BOOST_DEDUCED_TYPENAME IStream::char_type>
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| 109 | )
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| 110 | );
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| 111 | is.imbue(* archive_locale);
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| 112 | }
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| 113 | is >> std::noboolalpha;
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| 114 | }
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| 115 |
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| 116 | template<class IStream>
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| 117 | BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
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| 118 | basic_text_iprimitive<IStream>::~basic_text_iprimitive(){
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| 119 | }
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| 120 |
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| 121 | } // namespace archive
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| 122 | } // namespace boost
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