Re: Colored output

[Akim Demaille]

Hi Bruno,

I'm not sure handle_color_option works as expected.  I always (independently of 
the argument of the option, and independently of whether the output is a tty) 
get colored output on Bison (https://github.com/akimd/bison/pull/5), but also 
in the two examples of libtextstyle.

As a workaround, currently I'm using this:

void
err_begin_use_class (const char *s)
{
#if HAVE_LIBTEXTSTYLE
  if (color_mode != color_no)
    styled_ostream_begin_use_class (errstream, s);
#else
  (void) s;
#endif
}

I might be doing something wrong, but I think I followed properly the 
documentation.

Cheers!