source: NonGTP/Boost/boost/archive/impl/xml_woarchive_impl.ipp @ 857

Revision 857, 5.3 KB checked in by igarcia, 19 years ago (diff)
Line 
1/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
2// xml_woarchive_impl.ipp:
3
4// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
5// Distributed under the Boost Software License, Version 1.0. (See
6// accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8
9#include <boost/config.hpp>
10#ifndef BOOST_NO_STD_WSTREAMBUF
11
12#include <ostream>
13#include <string>
14#include <algorithm>
15#include <locale>
16
17#include <boost/config.hpp> // msvc 6.0 needs this to suppress warnings
18                            // for BOOST_DEDUCED_TYPENAME
19#include <cstring> // strlen
20#include <cstdlib> // mbtowc
21#include <cwchar>  // wcslen
22
23#if defined(BOOST_NO_STDC_NAMESPACE)
24namespace std{
25    using ::strlen;
26    #if ! defined(BOOST_NO_INTRINSIC_WCHAR_T)
27        using ::mbtowc;
28        using ::wcslen;
29    #endif
30} // namespace std
31#endif
32
33#include <boost/throw_exception.hpp>
34#include <boost/pfto.hpp>
35
36#include <boost/archive/iterators/xml_escape.hpp>
37#include <boost/archive/iterators/wchar_from_mb.hpp>
38#include <boost/archive/iterators/ostream_iterator.hpp>
39#include <boost/archive/iterators/dataflow_exception.hpp>
40
41#include <boost/archive/add_facet.hpp>
42#include <boost/archive/detail/utf8_codecvt_facet.hpp>
43
44namespace boost {
45namespace archive {
46
47/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
48// implemenations of functions specific to wide char archives
49
50// copy chars to output escaping to xml and widening characters as we go
51template<class InputIterator>
52void save_iterator(std::wostream &os, InputIterator begin, InputIterator end){
53    typedef iterators::wchar_from_mb<
54        iterators::xml_escape<InputIterator>
55    > xmbtows;
56    std::copy(
57        xmbtows(BOOST_MAKE_PFTO_WRAPPER(begin)),
58        xmbtows(BOOST_MAKE_PFTO_WRAPPER(end)),
59        boost::archive::iterators::ostream_iterator<wchar_t>(os)
60    );
61}
62
63template<class Archive>
64BOOST_WARCHIVE_DECL(void)
65xml_woarchive_impl<Archive>::save(const std::string & s){
66    // note: we don't use s.begin() and s.end() because dinkumware
67    // doesn't have string::value_type defined. So use a wrapper
68    // around these values to implement the definitions.
69    const char * begin = s.data();
70    const char * end = begin + s.size();
71    save_iterator(os, begin, end);
72}
73
74#ifndef BOOST_NO_STD_WSTRING
75template<class Archive>
76BOOST_WARCHIVE_DECL(void)
77xml_woarchive_impl<Archive>::save(const std::wstring & ws){
78#if 0
79    typedef iterators::xml_escape<std::wstring::const_iterator> xmbtows;
80    std::copy(
81        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws.begin())),
82        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws.end())),
83        boost::archive::iterators::ostream_iterator<wchar_t>(os)
84    );
85#endif
86    typedef iterators::xml_escape<const wchar_t *> xmbtows;
87    std::copy(
88        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws.data())),
89        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws.data() + ws.size())),
90        boost::archive::iterators::ostream_iterator<wchar_t>(os)
91    );
92}
93#endif //BOOST_NO_STD_WSTRING
94
95template<class Archive>
96BOOST_WARCHIVE_DECL(void)
97xml_woarchive_impl<Archive>::save(const char * s){
98   save_iterator(os, s, s + std::strlen(s));
99}
100
101#ifndef BOOST_NO_INTRINSIC_WCHAR_T
102template<class Archive>
103BOOST_WARCHIVE_DECL(void)
104xml_woarchive_impl<Archive>::save(const wchar_t * ws){
105    os << ws;
106    typedef iterators::xml_escape<const wchar_t *> xmbtows;
107    std::copy(
108        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws)),
109        xmbtows(BOOST_MAKE_PFTO_WRAPPER(ws + std::wcslen(ws))),
110        boost::archive::iterators::ostream_iterator<wchar_t>(os)
111    );
112}
113#endif
114
115template<class Archive>
116BOOST_WARCHIVE_DECL(BOOST_PP_EMPTY())
117xml_woarchive_impl<Archive>::xml_woarchive_impl(
118    std::wostream & os_,
119    unsigned int flags
120) :
121    basic_text_oprimitive<std::wostream>(
122        os_,
123        true // don't change the codecvt - use the one below
124    ),
125    basic_xml_oarchive<Archive>(flags)
126{
127    // Standard behavior is that imbue can be called
128    // a) before output is invoked or
129    // b) after flush has been called.  This prevents one-to-many
130    // transforms (such as one to many transforms from getting
131    // mixed up.  Unfortunately, STLPort doesn't respect b) above
132    // so the restoration of the original archive locale done by
133    // the locale_saver doesn't get processed,
134    // before the current one is destroyed.
135    // so the codecvt doesn't get replaced with the orginal
136    // so closing the stream invokes codecvt::do_unshift
137    // so it crashes because the corresponding locale that contained
138    // the codecvt isn't around any more.
139    // we can hack around this by using a static codecvt that never
140    // gets destroyed.
141    if(0 == (flags & no_codecvt)){
142        detail::utf8_codecvt_facet *pfacet;
143        #if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
144            static detail::utf8_codecvt_facet facet(static_cast<size_t>(1));
145            pfacet = & facet;
146        #else
147            pfacet = new detail::utf8_codecvt_facet;
148        #endif
149        archive_locale.reset(add_facet(std::locale::classic(), pfacet));
150        os.imbue(* archive_locale);
151    }
152    if(0 == (flags & no_header))
153        this->init();
154}
155
156} // namespace archive
157} // namespace boost
158
159#endif //BOOST_NO_STD_WSTREAMBUF
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