PM sql error on unicode character

[wheybags]

Hey, getting the following sql error when trying to send a pm with unicode money bag in it :3

[scottc]

That's probably the most specific error report I've seen in my life

[wheybags]

Seems too specific... Is there a debug mode in phpbb that's turned on for some reason?
Most things hide the specifics of their errors when in production.

[scottc]

FWIW: PMs with unicode snowmen work.

[webwit]

I just learned...MySQL's utf8 implementation actually isn't utf8...
http://dev.mysql.com/doc/refman/5.5/en/ ... f8mb4.html
Some guy mentioned it here:
http://stackoverflow.com/questions/1168 ... lue-errors
("no Emoji, no astral plane, etc.")

This might be a good thing in some ways... imagine someone with emoji as a user name.

P.S. Oh I guess that means the answer to your PM would be "No" Due to "technical reasons".

[scottc]

Can I change mine to a unicode snowman then?

[webwit]

You'll have to ask the secretary.

Is there a unicode three byte duck?

[Daniel Beardsmore]

The page also fails to note whether MySQL converts from decomposed to composed characters: when using VARCHAR, does the size limit cover the text's composed form? I would figure that using decomposed characters would cause a violation of the column size limit, even though, to the user, the text is within the limit … Obviously with CHAR, decomposed sequences won't fit.

[Muirium]

Can I change mine to a unicode snowman then?

I will only allow emoji in usernames if the meaning of the emoji is explained — aka emojisplainin' — by the rest of the text. This is an accessibility feature, and punishment!

[scottc]

Unicode snowman is not an emoji, it's unicode just like your µ!

http://unicodesnowmanforyou.com/

[Muirium]

My µ is authentic Greek, just the kind of thing Unicode was cobbled up for. What language of the world uses snowmen?

¿☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃?

[Muirium]

Is there a unicode three byte duck?

The Egyptians had several hieroglyphs for them:



Or the genuine article:


So on principle I'm all for it!

[Daniel Beardsmore]

My µ is authentic Greek …

Ah, but you wrote U+00B5 MICRO SIGN (µ) instead of U+03BC GREEK SMALL LETTER MU (μ)!

[webwit]

My µ is authentic Greek, just the kind of thing Unicode was cobbled up for. What language of the world uses snowmen?

¿☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃?

snowman.png (306.46 KiB) Viewed 6909 times

[Muirium]

They're so happy! Smug bastards.

My µ is authentic Greek …

Ah, but you wrote U+00B5 MICRO SIGN (µ) instead of U+03BC GREEK SMALL LETTER MU (μ)!

I always type it via Option + m. Hmm… the fact these are considered distinct characters concerns me!

[webwit]

If you're a programmer and think time & timezones are a huge headache, then be very, very afraid of character encodings, which are somewhere halfway on the Scale of Evilness. The end of the scale is the Alps vortex.

[Daniel Beardsmore]

I always type it via Option + m. Hmm… the fact these are considered distinct characters concerns me!

If asked for the uppercase version of each, what would you expect?

[Mal-2]

They're so happy! Smug bastards.

My µ is authentic Greek …

Ah, but you wrote U+00B5 MICRO SIGN (µ) instead of U+03BC GREEK SMALL LETTER MU (μ)!

I always type it via Option + m. Hmm… the fact these are considered distinct characters concerns me!

The most common technical symbols got encoded long before the rest of the Greek alphabet, and included a second time (often rendered slightly differently) when Greek got added to Unicode.

For example: Ω versus Ω, ∆ versus Δ, ∏ versus Π, ∑ versus Σ.

Also potentially confusing is £ (pound) versus ₤ (lira).

In all cases, I have one of these available in my keyboard mapping, but not both (the actual Greek, and the pound). I am neither Greek nor a mathematician, but I do write them as characters.

[Muirium]

I'm going to opt to forget all this and relish my newfound ignorance!

[Mal-2]

I'm going to opt to forget all this and relish my newfound ignorance!

I suppose it was done because of the principle of keeping a full language set together when possible. The technical symbols are exactly that, technical symbols. Just like you wouldn't be right substituting Latin C or P for Cyrillic (lookalike) С or P, you shouldn't substitute Latin A B H for Greek Α Β Η. They may pass for the same visually, but they don't parse the same.

Of course, we now see reverse substitution problems, people using the Greek alphabet code block where they should be using a technical symbol, but that's somewhat more manageable just because of the lower volume of writing involved.