File:  [gforth] / gforth / vt100key.fs
Revision 1.5: download - view: text, annotated - select for diffs
Tue Dec 8 22:02:53 1998 UTC (20 years, 7 months ago) by anton
Branches: MAIN
CVS tags: v0-4-0, HEAD
updated dates in copyright messages
inserted copyright messages in most files that did not have them
removed outdated files engine/32bit.h engine/strsig.c

\ vt100 key interpreter                                17oct94py

\ Copyright (C) 1995,1996,1998 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 2
\ 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, write to the Free Software
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Create translate $100 allot
translate $100 erase
Create transcode $100 allot
transcode $100 erase

: trans: ( char 'index' -- ) char translate + c! ;
: tcode  ( char index -- ) transcode + c! ;

: vt100-decode ( max span addr pos1 -- max span addr pos2 flag )
    key '[ = IF  0  base @ >r  &10 base !
	BEGIN  key dup digit?  WHILE  nip swap &10 * +  REPEAT
	r> base !
	dup '~ =  IF  drop transcode  ELSE  nip translate  THEN
	+ c@ dup  IF  decode  THEN
    ELSE  0  THEN ;

ctrl B trans: D
ctrl F trans: C
ctrl P trans: A
ctrl N trans: B

ctrl A 1 tcode
ctrl D 3 tcode
ctrl E 4 tcode

' vt100-decode  ctrlkeys $1B cells + !

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