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https://github.com/tfussell/xlnt.git
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89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
// Copyright (c) 2014-2017 Thomas Fussell
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, WRISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE
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//
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// @license: http://www.opensource.org/licenses/mit-license.php
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// @author: see AUTHORS file
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#include <codecvt>
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#include <locale>
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#include <string>
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#include <detail/unicode.hpp>
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namespace xlnt {
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namespace detail {
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#ifdef _MSC_VER
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std::u16string utf8_to_utf16(const std::string &utf8_string)
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{
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// use wchar_t instead of char16_t on Windows because of a bug in MSVC
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// error LNK2001: unresolved external symbol std::codecvt::id
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// https://connect.microsoft.com/VisualStudio/Feedback/Details/1403302
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auto converted = std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,
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wchar_t>{}.from_bytes(utf8_string);
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return std::u16string(converted.begin(), converted.end());
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}
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std::string utf16_to_utf8(const std::u16string &utf16_string)
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{
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std::wstring utf16_wstring(utf16_string.begin(), utf16_string.end());
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// use wchar_t instead of char16_t on Windows because of a bug in MSVC
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// error LNK2001: unresolved external symbol std::codecvt::id
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// https://connect.microsoft.com/VisualStudio/Feedback/Details/1403302
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return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>,
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wchar_t>{}.to_bytes(utf16_wstring);
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}
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#else
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std::u16string utf8_to_utf16(const std::string &utf8_string)
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{
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return std::wstring_convert<std::codecvt_utf8_utf16<char16_t>,
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char16_t>{}.from_bytes(utf8_string);
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}
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std::string utf16_to_utf8(const std::u16string &utf16_string)
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{
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return std::wstring_convert<std::codecvt_utf8_utf16<char16_t>,
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char16_t>{}.to_bytes(utf16_string);
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}
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#endif
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std::string latin1_to_utf8(const std::string &latin1)
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{
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std::string utf8;
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for (auto character : latin1)
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{
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if (character >= 0)
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{
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utf8.push_back(character);
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}
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else
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{
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utf8.push_back(static_cast<char>(0xc0 + (character >> 6)));
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utf8.push_back(static_cast<char>(0x80 + (character & 0x3f)));
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}
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}
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return utf8;
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}
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} // namespace detail
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} // namespace xlnt
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