Re: [PATCH 2/2] send-email: rfc2047-quote subject lines with non-ascii characters

Den Saturday 29 March 2008 08.22.03 skrev Jeff King:

On Sat, Mar 29, 2008 at 08:19:07AM +0100, Robin Rosenberg wrote:

quoted

Den Friday 28 March 2008 22.29.01 skrev Jeff King:

quoted

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