Function withoutWindowsRoot

Libraries/Plugin/Internal/PluginString.h:166–204

#if SC_PLATFORM_WINDOWS
[[nodiscard]] constexpr StringSpan withoutWindowsRoot(StringSpan path)
{
    if (path.getEncoding() != StringEncoding::Utf16)
        return path;
    const size_t units = path.sizeInBytes() / sizeof(wchar_t);
    const auto   at    = [&](size_t index) -> char
    { return index < units ? path.bytesWithoutTerminator()[index * sizeof(wchar_t)] : 0; };
    const auto isSeparator = [&](size_t index) { return at(index) == '\\' or at(index) == '/'; };
    size_t     rootUnits   = 0;
    if (units >= 3 and at(1) == ':' and isSeparator(2))
    {
        rootUnits = 3;
    }
    else if (units >= 2 and isSeparator(0) and isSeparator(1))
    {
        size_t index = 2;
        if (units >= 4 and at(2) == '?' and isSeparator(3))
        {
            index = 4;
            if (units >= 7 and at(5) == ':' and isSeparator(6))
                rootUnits = 7;
        }
        if (rootUnits == 0)
        {
            while (index < units and not isSeparator(index))
                ++index;
            if (index < units)
                ++index;
            while (index < units and not isSeparator(index))
                ++index;
            rootUnits = index < units ? index + 1 : index;
        }
    }
    else if (units > 0 and isSeparator(0))
    {
        rootUnits = 1;
    }
    return slice(path, rootUnits * sizeof(wchar_t), path.sizeInBytes() - rootUnits * sizeof(wchar_t));
}
#endif

[[nodiscard]] inline bool append(StringPath& output, Span<const StringSpan> components)