Re: Character literals for Unicode (control) characters

[Paul Eggert]

Clément Pit--Claudel wrote:
> Another issue is text wrapping: M-q on a docstring containing these escape 
> sequences will break lines in a way that will look ugly when viewing the 
> rendered docstring:
>
>      "Use Greek capital letters (\u[GREEK CAPITAL LETTER ALPHA]
>    \u[EN DASH]\u[GREEK CAPITAL LETTER OMEGA]) to denote figures."
>
> will be rendered as
>
>      "Use Greek capital letters (Α–
>    Ω) to denote figures."
>
> which isn't right.

I don't see a problem here. The original string should look something like this:

"Use Greek capital letters (\N{GREEK CAPITAL LETTER ALPHA}\N{EN DASH}\N{GREEK 
CAPITAL LETTER OMEGA}) to denote figures."

and there's no space between the "DASH}" and the following "\N{GREEK" for M-q to 
latch onto. I just now tried M-q on the above string and it came up with:

(defun foo (abc)
  "Use Greek capital letters (\N{GREEK CAPITAL LETTER ALPHA}\N{EN
  DASH}\N{GREEK CAPITAL LETTER OMEGA}) to denote figures."
  ...)

which should work OK if arbitrary white space is allowed between words inside 
\N{...} escapes.