1.\" Copyright (c) 2011-2013 Devin Teske 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.Dd July 20, 2018 26.Dt COLOR.4TH 7 27.Os 28.Sh NAME 29.Nm color.4th 30.Nd loader color-detection boot module 31.Sh DESCRIPTION 32The file that goes by the name of 33.Nm 34is a set of commands designed to simplify color logic. 35The commands of 36.Nm 37by themselves are not enough for most uses. 38Please refer to the 39examples below for the most common situations, and to 40.Xr loader 7 41for additional commands. 42.Pp 43Before using any of the commands provided in 44.Nm , 45it must be included 46through the command: 47.Pp 48.Dl include color.4th 49.Pp 50This line is present in 51.Pa /boot/forth/loader.4th 52file, so it is not needed (and should not be re-issued) in a normal setup. 53.Pp 54The commands provided by it are: 55.Pp 56.Bl -tag -width disable-module_module -compact -offset indent 57.It Ic loader_color? 58Returns FALSE if the 59.Ic loader_color 60environment variable is set to 61.Dq NO 62(case-insensitive) or 63.Dq 0 . 64Otherwise returns TRUE 65.Pq unless booting serial . 66.El 67.Pp 68The environment variables that effect its behavior are: 69.Bl -tag -width bootfile -offset indent 70.It Va loader_color 71If set to 72.Dq NO 73(case-insensitive) or 74.Dq 0 , 75causes 76.Ic loader_color? 77to return FALSE, indicating to many modules that color should not be used. 78.El 79.Sh FILES 80.Bl -tag -width /boot/forth/loader.4th -compact 81.It Pa /boot/loader 82The 83.Xr loader 7 . 84.It Pa /boot/forth/color.4th 85.Nm 86itself. 87.It Pa /boot/loader.rc 88.Xr loader 7 89bootstrapping script. 90.El 91.Sh EXAMPLES 92Standard i386 93.Pa /boot/loader.conf : 94.Pp 95Use color where applicable: 96.Pp 97.Bd -literal -offset indent -compact 98loader_color="YES" 99.Ed 100.Sh SEE ALSO 101.Xr loader.conf 5 , 102.Xr loader 7 , 103.Xr loader.4th 7 104