112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
/*
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Copyright (c) 2006, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_UTF8_HPP_INCLUDED
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#define TORRENT_UTF8_HPP_INCLUDED
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#include "libtorrent/config.hpp"
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// on windows we need these functions for
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// convert_to_native and convert_from_native
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#if TORRENT_USE_WSTRING || defined TORRENT_WINDOWS
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#include <string>
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#include <cwchar>
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#include "libtorrent/ConvertUTF.h"
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namespace libtorrent
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{
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inline int utf8_wchar(const std::string &utf8, std::wstring &wide)
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{
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// allocate space for worst-case
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wide.resize(utf8.size());
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wchar_t const* dst_start = wide.c_str();
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char const* src_start = utf8.c_str();
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ConversionResult ret;
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if (sizeof(wchar_t) == sizeof(UTF32))
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{
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ret = ConvertUTF8toUTF32((const UTF8**)&src_start, (const UTF8*)src_start
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+ utf8.size(), (UTF32**)&dst_start, (UTF32*)dst_start + wide.size()
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, lenientConversion);
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wide.resize(dst_start - wide.c_str());
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return ret;
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}
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else if (sizeof(wchar_t) == sizeof(UTF16))
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{
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ret = ConvertUTF8toUTF16((const UTF8**)&src_start, (const UTF8*)src_start
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+ utf8.size(), (UTF16**)&dst_start, (UTF16*)dst_start + wide.size()
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, lenientConversion);
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wide.resize(dst_start - wide.c_str());
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return ret;
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}
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else
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{
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return sourceIllegal;
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}
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}
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inline int wchar_utf8(const std::wstring &wide, std::string &utf8)
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{
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// allocate space for worst-case
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utf8.resize(wide.size() * 6);
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if (wide.empty()) return 0;
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char* dst_start = &utf8[0];
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wchar_t const* src_start = wide.c_str();
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ConversionResult ret;
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if (sizeof(wchar_t) == sizeof(UTF32))
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{
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ret = ConvertUTF32toUTF8((const UTF32**)&src_start, (const UTF32*)src_start
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+ wide.size(), (UTF8**)&dst_start, (UTF8*)dst_start + utf8.size()
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, lenientConversion);
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utf8.resize(dst_start - &utf8[0]);
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return ret;
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}
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else if (sizeof(wchar_t) == sizeof(UTF16))
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{
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ret = ConvertUTF16toUTF8((const UTF16**)&src_start, (const UTF16*)src_start
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+ wide.size(), (UTF8**)&dst_start, (UTF8*)dst_start + utf8.size()
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, lenientConversion);
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utf8.resize(dst_start - &utf8[0]);
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return ret;
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}
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else
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{
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return sourceIllegal;
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}
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}
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}
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#endif // !BOOST_NO_STD_WSTRING
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#endif
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