Re: cairo and character encoding issues

[Allin C. <cot...@wf...>]

On Fri, 23 Nov 2007, Ethan A Merritt wrote:
> 
> > lascaux [1235] ./gnuplot...
> 
> > gnuplot> show locale
> > 
> >         LC_CTYPE is en_US.UTF-8
> >         LC_TIME is C

This is puzzling.

1) If LC_CTYPE is en_US.UTF-8 then g_get_charset should certainly 
return UTF-8, which it is not doing in the cairo driver.

2) How did LC_CTYPE _get_ to be equal to en_US.UTF-8 at this point 
in execution, when the only command that has been issued is "show 
locale"? 

I can't see any invocation of setlocale(LC_CTYPE, "") in src/*.c 
other than in the default response to the command "set locale".

3) Anyway, by the time you plot a graph using cairo the LC_CTYPE 
setting has reverted to "C".  I've verified that by sticking a 
print before the g_get_charset() invocation:

fprintf(stderr, "gp_cairo_get_encoding: LC_CTYPE is %s\n", 
        setlocale(LC_CTYPE, NULL));

-> gp_cairo_get_encoding: LC_CTYPE is C

Allin Cottrell