1\ Copyright (c) 2011-2013 Devin Teske <dteske@FreeBSD.org> 2\ All rights reserved. 3\ 4\ Redistribution and use in source and binary forms, with or without 5\ modification, are permitted provided that the following conditions 6\ are met: 7\ 1. Redistributions of source code must retain the above copyright 8\ notice, this list of conditions and the following disclaimer. 9\ 2. Redistributions in binary form must reproduce the above copyright 10\ notice, this list of conditions and the following disclaimer in the 11\ documentation and/or other materials provided with the distribution. 12\ 13\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23\ SUCH DAMAGE. 24\ 25\ $FreeBSD$ 26 27marker task-color.4th 28 29\ This function returns FALSE if the `loader_color' environment variable is set 30\ to NO, no, or 0. It returns TRUE if `loader_color' is set to any other value. 31\ If `loader_color' is unset, TRUE is returned (unless booting serial). 32\ 33: loader_color? ( -- t ) 34 35 s" loader_color" getenv dup -1 <> if 36 \ `loader_color' is set. 37 \ Check if it is explicitly disabled. 38 2dup s" NO" compare-insensitive 0= if 39 2drop 40 FALSE exit 41 then 42 2dup s" 0" compare 0= if 43 2drop 44 FALSE exit 45 then 46 drop 47 \ It is enabled. 48 TRUE 49 else 50 \ `loader_color' is unset. 51 \ Default to using color unless serial boot is active. 52 drop 53 boot_serial? 0= 54 then 55; 56