xref: /illumos-gate/usr/src/boot/forth/color.4th (revision 22028508fd28d36ff74dc02c5774a8ba1f0db045)
1*22028508SToomas Soome\ Copyright (c) 2011-2013 Devin Teske <dteske@FreeBSD.org>
2*22028508SToomas Soome\ All rights reserved.
3*22028508SToomas Soome\
4*22028508SToomas Soome\ Redistribution and use in source and binary forms, with or without
5*22028508SToomas Soome\ modification, are permitted provided that the following conditions
6*22028508SToomas Soome\ are met:
7*22028508SToomas Soome\ 1. Redistributions of source code must retain the above copyright
8*22028508SToomas Soome\    notice, this list of conditions and the following disclaimer.
9*22028508SToomas Soome\ 2. Redistributions in binary form must reproduce the above copyright
10*22028508SToomas Soome\    notice, this list of conditions and the following disclaimer in the
11*22028508SToomas Soome\    documentation and/or other materials provided with the distribution.
12*22028508SToomas Soome\
13*22028508SToomas Soome\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14*22028508SToomas Soome\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15*22028508SToomas Soome\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16*22028508SToomas Soome\ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17*22028508SToomas Soome\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18*22028508SToomas Soome\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19*22028508SToomas Soome\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20*22028508SToomas Soome\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21*22028508SToomas Soome\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22*22028508SToomas Soome\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23*22028508SToomas Soome\ SUCH DAMAGE.
24*22028508SToomas Soome\
25*22028508SToomas Soome
26*22028508SToomas Soomemarker task-color.4th
27*22028508SToomas Soome
28*22028508SToomas Soome\ This function returns FALSE if the `loader_color' environment variable is set
29*22028508SToomas Soome\ to NO, no, or 0. Otherwise, TRUE is returned.
30*22028508SToomas Soome\
31*22028508SToomas Soome: loader_color? ( -- N )
32*22028508SToomas Soome
33*22028508SToomas Soome	s" loader_color" getenv dup -1 <> if
34*22028508SToomas Soome		\ `loader_color' is set.
35*22028508SToomas Soome		\ Check if it is explicitly disabled.
36*22028508SToomas Soome		2dup s" NO" compare-insensitive 0= if
37*22028508SToomas Soome			2drop
38*22028508SToomas Soome			FALSE exit
39*22028508SToomas Soome		then
40*22028508SToomas Soome		2dup s" 0" compare 0= if
41*22028508SToomas Soome			2drop
42*22028508SToomas Soome			FALSE exit
43*22028508SToomas Soome		then
44*22028508SToomas Soome		drop
45*22028508SToomas Soome	then
46*22028508SToomas Soome	drop
47*22028508SToomas Soome	\ It is enabled.
48*22028508SToomas Soome	TRUE
49*22028508SToomas Soome;
50