# Create a new string copied from `s`.
	init from(s: Text)
	do
		_items = new CString(s.byte_length)
		for i in s.substrings do i._items.copy_to(_items, i._byte_length, first_byte, 0)
		_byte_length = s.byte_length
		_length = s.length
		_capacity = _byte_length
	end