screen.4th revision 302408
1\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org> 2\ Copyright (c) 2015 Devin Teske <dteske@FreeBSD.org> 3\ All rights reserved. 4\ 5\ Redistribution and use in source and binary forms, with or without 6\ modification, are permitted provided that the following conditions 7\ are met: 8\ 1. Redistributions of source code must retain the above copyright 9\ notice, this list of conditions and the following disclaimer. 10\ 2. Redistributions in binary form must reproduce the above copyright 11\ notice, this list of conditions and the following disclaimer in the 12\ documentation and/or other materials provided with the distribution. 13\ 14\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17\ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24\ SUCH DAMAGE. 25\ 26\ $FreeBSD: stable/11/sys/boot/forth/screen.4th 280975 2015-04-02 01:48:12Z dteske $ 27 28marker task-screen.4th 29 30\ emit Esc-[ 31: escc ( -- ) 27 emit [char] [ emit ; 32 33\ Home cursor ( Esc-[H ) 34: ho ( -- ) escc [char] H emit ; 35 36\ Clear from current position to end of display ( Esc-[J ) 37: cld ( -- ) escc [char] J emit ; 38 39\ clear screen 40: clear ( -- ) ho cld ; 41 42\ move cursor to x rows, y cols (1-based coords) ( Esc-[%d;%dH ) 43: at-xy ( x y -- ) escc .# [char] ; emit .# [char] H emit ; 44 45\ Set foreground color ( Esc-[3%dm ) 46: fg ( x -- ) escc 3 .# .# [char] m emit ; 47 48\ Set background color ( Esc-[4%dm ) 49: bg ( x -- ) escc 4 .# .# [char] m emit ; 50 51\ Mode end (clear attributes) 52: me ( -- ) escc [char] m emit ; 53 54\ Enable bold mode ( Esc-[1m ) 55: b ( -- ) escc 1 .# [char] m emit ; 56 57\ Disable bold mode ( Esc-[22m ) 58: -b ( -- ) escc 22 .# [char] m emit ; 59 60\ Enable inverse foreground/background mode ( Esc-[7m ) 61: inv ( -- ) escc 7 .# [char] m emit ; 62 63\ Disable inverse foreground/background mode ( Esc-[27m ) 64: -inv ( -- ) escc 27 .# [char] m emit ; 65 66\ Convert all occurrences of given character (c) in string (c-addr/u) to Esc 67: escc! ( c-addr/u c -- c-addr/u ) 68 2 pick 2 pick 69 begin dup 0> while 70 over c@ 3 pick = if over 27 swap c! then 71 1- swap 1+ swap 72 repeat 73 2drop drop 74; 75