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#include "config.h"
#include "strutils.h"
#include <cstdlib>
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
std::string wstr_to_utf8(const WCHAR *wstr)
{
std::string ret;
int len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, nullptr, 0, nullptr, nullptr);
if(len > 0)
{
ret.resize(len);
WideCharToMultiByte(CP_UTF8, 0, wstr, -1, &ret[0], len, nullptr, nullptr);
ret.pop_back();
}
return ret;
}
std::wstring utf8_to_wstr(const char *str)
{
std::wstring ret;
int len = MultiByteToWideChar(CP_UTF8, 0, str, -1, nullptr, 0);
if(len > 0)
{
ret.resize(len);
MultiByteToWideChar(CP_UTF8, 0, str, -1, &ret[0], len);
ret.pop_back();
}
return ret;
}
#endif
namespace al {
al::optional<std::string> getenv(const char *envname)
{
const char *str{std::getenv(envname)};
if(str && str[0] != '\0') return str;
return al::nullopt;
}
#ifdef _WIN32
al::optional<std::wstring> getenv(const WCHAR *envname)
{
const WCHAR *str{_wgetenv(envname)};
if(str && str[0] != L'\0') return str;
return al::nullopt;
}
#endif
} // namespace al
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