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Made new scheme work in different bases
Added first/last key do vt100key.fs

    1: \ vt100 key interpreter                                17oct94py
    2: 
    3: \ Copyright (C) 1995,1996,1998,2000,2003 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: Create translate $100 allot
   22: translate $100 erase
   23: Create transcode $100 allot
   24: transcode $100 erase
   25: 
   26: : trans: ( char 'index' -- ) char translate + c! ;
   27: : tcode  ( char index -- ) transcode + c! ;
   28: 
   29: : vt100-decode ( max span addr pos1 -- max span addr pos2 flag )
   30:     key '[ = IF  0  base @ >r  &10 base !
   31: 	BEGIN  key dup digit?  WHILE  nip swap &10 * +  REPEAT
   32: 	r> base !
   33: 	dup '~ =  IF  drop transcode  ELSE  nip translate  THEN
   34: 	+ c@ dup  IF  decode  THEN
   35:     ELSE  0  THEN ;
   36: 
   37: ctrl B trans: D
   38: ctrl F trans: C
   39: ctrl P trans: A
   40: ctrl N trans: B
   41: ctrl A trans: H
   42: ctrl E trans: F
   43: 
   44: ctrl A 1 tcode
   45: ctrl X 3 tcode
   46: ctrl E 4 tcode
   47: 
   48: ' vt100-decode  ctrlkeys $1B cells + !