From: Robin Rosenberg <robin.rosenberg.lists@dewire.com>
Date: Sat, 29 Mar 2008 08:41:53 GMT
Subject: Re: [PATCH 2/2] send-email: rfc2047-quote subject lines with non-ascii characters
Message-ID: <200803290941.54091.robin.rosenberg.lists@dewire.com>
In-Reply-To: <20080329072203.GA17625@coredump.intra.peff.net>

Den Saturday 29 March 2008 08.22.03 skrev Jeff King:
> On Sat, Mar 29, 2008 at 08:19:07AM +0100, Robin Rosenberg wrote:
> > Den Friday 28 March 2008 22.29.01 skrev Jeff King:
> > > We always use 'utf-8' as the encoding, since we currently
> > > have no way of getting the information from the user.
> >
> > Don't set encoding to UTF-8 unless it actually looks like UTF-8.
>
> OK. Do you have an example function that guesses with high probability
> whether a string is utf-8? If there are non-ascii characters but we
> _don't_ guess utf-8, what should we do?

Any test for valid UTF-8 will do that with a very high probability. The
perl UTF-8 "api" is a mess. I couldn't find such a routine!?. Calling 
decode/encode and see if you get the original string works, but that is too
clumsy, IMHO.

-- robin