File:  [gforth] / gforth / vt100.fs
Revision 1.13: download - view: text, annotated - select for diffs
Mon Dec 31 15:25:18 2012 UTC (4 years, 11 months ago) by anton
Branches: MAIN
CVS tags: HEAD
updated copyright year

\ VT100.STR     VT100 excape sequences                  20may93jaw

\ Copyright (C) 1995,1999,2000,2003,2007,2012 Free Software Foundation, Inc.

\ This file is part of Gforth.

\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.

\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
\ GNU General Public License for more details.

\ You should have received a copy of the GNU General Public License
\ along with this program. If not, see http://www.gnu.org/licenses/.

decimal

: pn    base @ swap decimal 0 u.r base ! ;
: ;pn   [char] ; emit pn ;
: ESC[  27 emit [char] [ emit ;

Defer at-xy
Defer page

: vt100-at-xy ( u1 u2 -- ) \ facility at-x-y
  \G Position the cursor so that subsequent text output will take
  \G place at column @var{u1}, row @var{u2} of the display. (column 0,
  \G row 0 is the top left-hand corner of the display).
  1+ swap 1+ swap ESC[ pn ;pn [char] H emit ;

: vt100-page ( -- ) \ facility
  \G Clear the display and set the cursor to the top left-hand
  \G corner.
  ESC[ ." 2J" 0 0 at-xy ;

' vt100-at-xy IS at-xy
' vt100-page IS page

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>