version.4th revision 238431 
1\ Copyright (c) 2006-2011 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: head/sys/boot/forth/version.4th 238431 2012-07-14 01:45:35Z dteske $
26
27marker task-version.4th
28
29variable versionX
30variable versionY
31
32\ Initialize text placement to defaults
3380 versionX !	\ NOTE: this is the ending column (text is right-justified)
3424 versionY !
35
36: print_version ( -- )
37
38	\ Get the text placement position (if set)
39	s" loader_version_x" getenv dup -1 <> if
40		?number drop versionX ! -1
41	then drop
42	s" loader_version_y" getenv dup -1 <> if
43		?number drop versionY ! -1
44	then drop
45
46	\ Exit if a version was not set
47	s" loader_version" getenv dup -1 = if
48		drop exit
49	then
50
51	\ Right justify the text
52	dup versionX @ swap - versionY @ at-xy
53
54	\ Print the version (optionally in cyan)
55	loader_color? if
56		." [36m" type ." [37m"
57	else
58		type
59	then
60;
61