This is the mail archive of the
newlib@sourceware.org
mailing list for the newlib project.
Re: [Fwd: [1.7] wcwidth failing configure tests]
2009/6/13 Corinna Vinschen <vinschen@redhat.com>:
>> I'm not sure which "standard" you are referring to.
>
> The problem appears to be that there is no standard for the handling
> of ambiguous characters.
Yes, but the guideline exists.
http://cygwin.com/ml/cygwin/2009-05/msg00444.html
> 2) Unicode Standard Annex #11
> http://www.unicode.org/unicode/reports/tr11/ recommends:
> > 5 Recommendations
> (snip)
> > When processing or displaying data
> (snip)
> > Ambiguous characters behave like wide or narrow characters depending
> > on the context (language tag, script identification, associated
> > font, source of data, or explicit markup; all can provide the
> > context). If the context cannot be established reliably, they should
> > be treated as narrow characters by default.
> Define the default for ja, ko, and zh to use width = 2, with a
> @cjknarrow (or whatever) modifier to use width = 1.
I think it is good idea.
--
IWAMURO Motnori <http://vmi.jp/>