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

Den Saturday 29 March 2008 09.53.04 skrev Jeff King:

On Sat, Mar 29, 2008 at 09:44:55AM +0100, Robin Rosenberg wrote:

quoted

quoted

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?

I guess the best bet is to assume the locale. Btw, is the encoding header
from the commit (when present) completely lost? (not that it can be
trusted anyway).

What do you mean by "assume the locale"?  Is there a portable way to say
"this is the encoding of the locale the user has chosen?" On my system I
set LANG=en_US, and behind-the-scenes magic chooses utf-8 versus
iso8859-1.

The environment variables are only part of the story. There is a langinfo API 
for this. See I18N::Langinfo(3pm) that knows about those and something else.

# perl -e 'require I18N::Langinfo; I18N::Langinfo->import(qw(langinfo 
CODESET)); $codeset = langinfo(CODESET()); print "My codeset=".
$codeset."\n";'
My codeset=ISO-8859-15

-- robin