\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org>

\ Copyright (c) 2015 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-screen.4th

\ emit Esc-[

: escc ( -- ) 27 emit [char] [ emit ;

\ Home cursor ( Esc-[H )

: ho ( -- ) escc [char] H emit ;

\ Clear from current position to end of display ( Esc-[J )

: cld ( -- ) escc [char] J emit ;

\ clear screen

: clear ( -- ) ho cld ;

\ move cursor to x rows, y cols (1-based coords) ( Esc-[%d;%dH )

: at-xy ( x y -- ) escc .# [char] ; emit .# [char] H emit ;

\ Set foreground color ( Esc-[3%dm )

: fg ( x -- ) escc 3 .# .# [char] m emit ;

\ Set background color ( Esc-[4%dm )

: bg ( x -- ) escc 4 .# .# [char] m emit ;

\ Mode end (clear attributes)

: me ( -- ) escc [char] m emit ;

\ Enable bold mode ( Esc-[1m )

: b ( -- ) escc 1 .# [char] m emit ;

\ Disable bold mode ( Esc-[22m )

: -b ( -- ) escc 22 .# [char] m emit ;

\ Enable inverse foreground/background mode ( Esc-[7m )

: inv ( -- ) escc 7 .# [char] m emit ;

\ Disable inverse foreground/background mode ( Esc-[27m )

: -inv ( -- ) escc 27 .# [char] m emit ;

\ Convert all occurrences of given character (c) in string (c-addr/u) to Esc

: escc! ( c-addr/u c -- c-addr/u )

2 pick 2 pick

begin dup 0> while

over c@ 3 pick = if over 27 swap c! then

1- swap 1+ swap

repeat

2drop drop

;