[Python-3000] Displaying strings containing unicode escapes

[Guido van Rossum]

I still like this proposal. I don't quite understand the competing (?)
proposal by Stephen Turnbull; perhaps Stephen can compare and contrast
the two proposals? And where does Atsuo fall?

On Thu, Apr 17, 2008 at 2:40 PM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
> > I do think we should use some kind of Unicode-standard-endorsed
>  > definition of "printable" (as long as it excludes all ASCII escapes),
>
>  I think
>
>   unicodedata.category(c)[0] != "C"
>
>  is fairly close. That excludes control characters (Cc), format
>  characters (Cf), surrogates (Cs), private-use (Co) and unassigned
>  characters (Cn). We should then also escape \, ' and ", following
>  the traditional algorithm.
>
>  Printable then would be all letters, numbers, punctuation, symbols,
>  but also marks (e.g. TILDE, COMBINING RIGHT HARPOON ABOVE) and
>  separators (SPACE, NO-BREAK SPACE, THREE-PER-EM SPACE, LINE SEPARATOR,
>  PARAGRAPH SEPARATOR). It might be reasonable to also exclude line
>  separators (Zl) and paragraph separators (Zp), each category having
>  only one character in them.
>
>  Regards,
>  Martin
>



-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)