64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2017
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#include "td/utils/port/wstring_convert.h"
|
|
|
|
char disable_linker_warning_about_empty_file_wstring_convert_cpp TD_UNUSED;
|
|
|
|
#if TD_PORT_WINDOWS
|
|
|
|
#define _SILENCE_CXX17_CODECVT_HEADER_DEPRECATION_WARNING
|
|
|
|
#include "td/utils/port/wstring_convert.h"
|
|
|
|
#include <codecvt>
|
|
#include <locale>
|
|
#include <utility>
|
|
|
|
namespace td {
|
|
|
|
namespace detail {
|
|
template <class Facet>
|
|
class UsableFacet : public Facet {
|
|
public:
|
|
template <class... Args>
|
|
explicit UsableFacet(Args &&... args) : Facet(std::forward<Args>(args)...) {
|
|
}
|
|
~UsableFacet() = default;
|
|
};
|
|
} // namespace detail
|
|
|
|
Result<std::wstring> to_wstring(Slice slice) {
|
|
// TODO(perf): optimize
|
|
std::wstring_convert<detail::UsableFacet<std::codecvt_utf8_utf16<wchar_t>>> converter;
|
|
auto res = converter.from_bytes(slice.begin(), slice.end());
|
|
if (converter.converted() != slice.size()) {
|
|
return Status::Error("Wrong encoding");
|
|
}
|
|
return res;
|
|
}
|
|
|
|
Result<string> from_wstring(const wchar_t *begin, size_t size) {
|
|
std::wstring_convert<detail::UsableFacet<std::codecvt_utf8_utf16<wchar_t>>> converter;
|
|
auto res = converter.to_bytes(begin, begin + size);
|
|
if (converter.converted() != size) {
|
|
return Status::Error("Wrong encoding");
|
|
}
|
|
return res;
|
|
}
|
|
|
|
Result<string> from_wstring(const std::wstring &str) {
|
|
return from_wstring(str.data(), str.size());
|
|
}
|
|
|
|
Result<string> from_wstring(const wchar_t *begin) {
|
|
return from_wstring(begin, wcslen(begin));
|
|
}
|
|
|
|
} // namespace td
|
|
|
|
#endif
|