HardenedBSD/sys/boot/forth/version.4th

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2012-07-14 03:45:35 +02:00
\ Copyright (c) 2006-2011 Devin Teske <dteske@FreeBSD.org>
\ All rights reserved.
\
\ Redistribution and use in source and binary forms, with or without
\ modification, are permitted provided that the following conditions
\ are met:
\ 1. Redistributions of source code must retain the above copyright
\ notice, this list of conditions and the following disclaimer.
\ 2. Redistributions in binary form must reproduce the above copyright
\ notice, this list of conditions and the following disclaimer in the
\ documentation and/or other materials provided with the distribution.
\
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\ SUCH DAMAGE.
\
\ $FreeBSD$
marker task-version.4th
variable versionX
variable versionY
\ Initialize text placement to defaults
80 versionX ! \ NOTE: this is the ending column (text is right-justified)
24 versionY !
: print_version ( -- )
\ Get the text placement position (if set)
s" loader_version_x" getenv dup -1 <> if
?number drop versionX ! -1
then drop
s" loader_version_y" getenv dup -1 <> if
?number drop versionY ! -1
then drop
\ Exit if a version was not set
s" loader_version" getenv dup -1 = if
drop exit
then
\ Right justify the text
dup versionX @ swap - versionY @ at-xy
\ Print the version (optionally in cyan)
loader_color? if
." " type ." "
else
type
then
;