Fwd: "International Domain Names" support in KDE

Marc Mutz Marc.Mutz at uni-bielefeld.de
Mon Jan 27 22:49:18 GMT 2003

On Monday 27 January 2003 18:54, Simon Josefsson wrote:
> Using Unicode tables from QT would likely violate the IDN
> specifications, either directly or down the road, e.g.:
<snip fixed Unicode version in IDN>

You're right, of course :-(

Which proves how ugly all this IDN stuff is. It's an example of what you 
get to when the standards confuse machine-readable names with names to 
be shown to the user. (Or what happens if user demands take precedence)

You really, really, really don't want to have to deal with 
case-insensitive Unicode strings. That's a can of worms. Just saw this 
again with Thiago's example:

% ~1/test www.fuß.de
www.fuss.de = www.fuss.de

(Hint: it's not reversible) or with the famous Turkish i vs I (Hint: I 
is not uppercase i in Turkish; uppercase i is I with a dot above).

RFC 2822 was very nice in this respect: the addr-spec was 
machine-readable and restriced to a subset of US-ASCII and all 
internationalization happened outside of it, in the display-name, which 
was not case-insensitive nor even interpreted in the first place.


Military justice is to justice what military music is to music.
                                                  -- Groucho Marx
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