http://bisqwit.iki.fi/jutut/aa/あ.txt
If you see a square or a question mark instead of a curvy symbol, you don’t have a Japanese font installed. That’s alright, because it does not matter in this test.Copypaste this URL to IRC and ask people to tell what they see when they click it or copypaste to their browser.
The fact is that what they get depends on their IRC client, its encoding, their operating system and its configured language, and of the browser they use and its settings.
Note: If they see a ?.txt before even clicking the URL, the test bears no meaning.
| %E3%81%82.txt | UTF-8 (normal url-encoding) - OK |
|---|---|
| %e3%81%82.txt | UTF-8 (with lowercase url-encoding) - OK |
| %82%A0.txt | Normal SHIFT-JIS encoding, technically OK |
| %A4%A2.txt | Normal EUC-JP encoding, technically OK |
| %1B$B$%22%1B(B.txt | Normal ISO-2022-JP encoding, technically OK |
| %1B$B$%1B(B.txt | Broken ISO-2022-JP encoding (1 byte missing) |
| $B$(B.txt | Broken raw ISO-2022-JP encoding (1 byte missing) |
| $B$%22(B.txt | Broken ISO-2022-JP encoding (ESCs missing) |
| $B$"(B.txt | Raw ISO-2022-JP encoding, technically OK |
| $".txt | Broken ISO-2022-JP encoding (JIS shift codes missing) |
| B.txt | Broken ISO-2022-JP encoding |
| %C3%A3%C2%81%C2%82.txt | UTF-8 representation encoded in UTF-8, broken |
| %C3%A3%C2%81%E1%80%9A.txt | ??? broken |
| %C2%A4%C2%A2.txt | SHIFT-JIS representation encoded in UTF-8, broken |
| %c3%a3AB.txt | First byte of UTF-8 representation encoded in UTF-8, urlencoded in lowercase, ???, broken |
| ?.txt | ?, broken |