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/* Output colorization.
Copyright 2011 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#include <config.h>
#include "colorize.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* Return non-zero if we should highlight matches in output to file
descriptor FD. */
int
should_colorize (int fd)
{
if (! isatty (fd))
return 0;
else
{
char const *t = getenv ("TERM");
return t && strcmp (t, "dumb") != 0;
}
}
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