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handle unicode file open

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This commit is contained in:
robert-yates
2024-12-24 01:01:08 +01:00
parent 6b51b143bc
commit 8ed299b683
2 changed files with 39 additions and 4 deletions
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38
src/common/platform/unicode.hpp
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@@ -25,4 +25,40 @@ inline std::string u16_to_u8(std::u16string_view u16_view) {
}
}
return utf8_str;
}
}
inline std::string w_to_u8(std::wstring_view w_view) {
std::string utf8_str;
utf8_str.reserve(w_view.size() * 2);
for (char16_t ch : w_view) {
if (ch <= 0x7F) {
utf8_str.push_back(static_cast<char>(ch));
} else if (ch <= 0x7FF) {
utf8_str.push_back(static_cast<char>(0xC0 | (ch >> 6)));
utf8_str.push_back(static_cast<char>(0x80 | (ch & 0x3F)));
} else {
utf8_str.push_back(static_cast<char>(0xE0 | (ch >> 12)));
utf8_str.push_back(static_cast<char>(0x80 | ((ch >> 6) & 0x3F)));
utf8_str.push_back(static_cast<char>(0x80 | (ch & 0x3F)));
}
}
return utf8_str;
}
#ifndef OS_WINDOWS
inline int open_unicode(FILE** handle, std::u16string fileName, std::u16string mode)
{
*handle = fopen(u16_to_u8(fileName).c_str(), u16_to_u8(mode).c_str());
return errno;
}
#else
inline std::wstring u16_to_w(const std::u16string& u16str) {
return std::wstring(reinterpret_cast<const wchar_t*>(u16str.data()), u16str.size());
}
inline auto open_unicode(FILE** handle, std::u16string fileName, std::u16string mode)
{
return _wfopen_s(handle, u16_to_w(fileName).c_str(), u16_to_w(mode).c_str());
}
#endif