Re: Character literals for Unicode (control) characters

[Paul Eggert]

On 03/02/2016 09:47 PM, Lars Ingebrigtsen wrote:
> And then I thought -- well, if we should have a literal syntax for
> Unicode control characters, why not for all of them?
Something like that would make sense. The escape sequence should bracket 
the name, so that the escape sequences could be used in strings without 
ambiguity. Something like \u[NAME], say.

I'd still prefer to use characters as-is in strings if they're 
displayable, e.g., the Lisp string:

"Use Greek capital letters (Α–Ω) to denote figures."

is more readable than:

"Use Greek capital letters (\u[GREEK CAPITAL LETTER ALPHA]\u[EN 
DASH]\u[GREEK CAPITAL LETTER OMEGA]) to denote figures."

But for undisplayable or hard-to-read characters the escape sequence 
would be a win.

More issues: should we insist on the full official name? should we allow 
obsolescent aliases? lower-case instead of upper case? initial prefixes 
of names?