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153 lines
3.8 KiB
153 lines
3.8 KiB
// Copyright (C) 2010-2013, Vaclav Haisman. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modifica-
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// tion, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
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// DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <log4cplus/helpers/stringhelper.h>
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#include <log4cplus/helpers/loglog.h>
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#include <cstdlib>
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#include <cstring>
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#include <cwchar>
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#include <cassert>
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#include <vector>
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namespace log4cplus
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{
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namespace helpers
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{
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void clear_mbstate (std::mbstate_t & mbs);
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#if defined (LOG4CPLUS_WORKING_C_LOCALE)
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static
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void
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tostring_internal (std::string & result, wchar_t const * src, std::size_t size)
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{
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std::vector<char> result_buf (MB_CUR_MAX);
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wchar_t const * src_it = src;
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wchar_t const * const src_end_it = src + size;
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std::mbstate_t mbs;
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clear_mbstate (mbs);
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result.clear ();
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result.reserve (size + size / 3 + 1);
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while (src_it != src_end_it)
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{
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std::size_t ret = std::wcrtomb (&result_buf[0], *src_it, &mbs);
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if (ret == static_cast<std::size_t>(-1))
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{
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result.push_back ('?');
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clear_mbstate (mbs);
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++src_it;
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}
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else
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{
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result.append (result_buf.begin (), result_buf.begin () + ret);
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++src_it;
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}
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}
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}
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std::string
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tostring (const std::wstring & src)
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{
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std::string ret;
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tostring_internal (ret, src.c_str (), src.size ());
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return ret;
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}
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std::string
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tostring (wchar_t const * src)
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{
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assert (src);
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std::string ret;
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tostring_internal (ret, src, std::wcslen (src));
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return ret;
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}
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static
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void
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towstring_internal (std::wstring & result, char const * src, std::size_t size)
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{
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char const * src_it = src;
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char const * const src_end_it = src + size;
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std::mbstate_t mbs;
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clear_mbstate (mbs);
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result.clear ();
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result.reserve (size);
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while (src_it != src_end_it)
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{
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std::size_t const n = size - (src - src_it);
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wchar_t result_char;
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std::size_t ret = std::mbrtowc (&result_char, src_it, n, &mbs);
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if (ret > 0)
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{
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result.push_back (result_char);
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src_it += ret;
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}
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else
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{
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result.push_back (ret == 0 ? L'\0' : L'?') ;
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clear_mbstate (mbs);
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++src_it;
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}
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}
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}
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std::wstring
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towstring (const std::string& src)
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{
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std::wstring ret;
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towstring_internal (ret, src.c_str (), src.size ());
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return ret;
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}
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std::wstring
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towstring (char const * src)
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{
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assert (src);
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std::wstring ret;
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towstring_internal (ret, src, std::strlen (src));
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return ret;
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}
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#endif // LOG4CPLUS_WORKING_C_LOCALE
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} // namespace helpers
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} // namespace log4cplus
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