Re: Use IDNA on all network connections

[Eli Zaretskii]

> From: Lars Ingebrigtsen <address@hidden>
> Date: Tue, 29 Dec 2015 12:43:25 +0100
> Cc: address@hidden
> 
> Lars Ingebrigtsen <address@hidden> writes:
> 
> > 3 Highly Restrictive 
> >
> >  * All characters in each identifier must be from a single script, or from 
> > the
> >  combinations: 
> >
> >  * Latin + Han + Hiragana + Katakana; 
> >  * Latin + Han + Bopomofo; or 
> >  * Latin + Han + Hangul 
> 
> I've now implemented this in puny.el

Thanks.

> but...
> 
> >  * No characters in the identifier can be outside of the Identifier Profile 
> 
> I'm not sure I quite follow what they're saying here:
> 
> http://www.unicode.org/reports/tr31/#Table_Candidate_Characters_for_Inclusion_in_Identifiers

They are saying we should allow these characters in identifiers,
unless we have a very good reason not to.

> But do we have this table somewhere in Emacs already?  :-)

I don't think so.  However, the list of those characters is very
short, so having it as a list or a regexp is not a problem.