I want the char 8 that makes a beep.

There are a frightening number of systems that don't allow "-", which isn't even an edge case. A lot of people - mostly women - hyphenate their last names on marriage, rather than throw their old name away. My wife did. She legally changed her name when she came of age, and when we met and married years later she said, "I paid for money for my name; I'm not letting it go." (Note: I wasn't pressuring her to take my name.) So she hyphenated it, and has come to regret the decision. She says she should have switched, or not, but the hyphen causes problems everywhere. It's not a legal character in a lot of systems, including some government systems.

asking questions like this is how i found out that one of the allowed characters in names in my country is ÿ, which is fine in Latin-1 but in 7-bit ASCII is DEL.

I really can't even begin to properly explain this because it's just so many layers of intuition. No, you absolutely cannot have a line break in your name. That's not a letter. That said, I'm fully prepared for someone to give me an example of some writing system that uses line breaks for unique purposes apart from spaces.

Unix or dos format?

Anyway, you probably need to put a backslash before it to indicate line continuation.

But wouldn't it be better to use something more traditional, such as ?

What about an open bracket? (

"We call her Carrie, because of the carriage return."

You can also try to give the child NULL as middle name for additional fun.

Just noticed that the listing for ; DROP TABLE "COMPANIES"; -- LTD has been redacted by the government website‽

That's easy, just call it Jhon\nDoe

Am I allowed to include sql command words such as drop table in my child's name?

I'd rather include a bell character '\a'

What's the answer? I need the link

Edit: I found it

Always sanitize your Data inputs.

NaN,
Not a Number, and now Not a Name