Similar guides exist for Russian encodings: <a href="http://vault.pmpc.ru/vf/16011417/6a7b205721142511253e4d581.png" rel="nofollow">http://vault.pmpc.ru/vf/16011417/6a7b205721142511253e4d581.p...</a><p>Then they got extended to detect writing systems:
<a href="https://i.stack.imgur.com/ed1Co.png" rel="nofollow">https://i.stack.imgur.com/ed1Co.png</a>